Massachusetts Alimony Calculator
Estimate spousal support in Massachusetts, where statutory formula decides the award. Includes likelihood, a modeled amount range, duration, and the statutory factors that decide what a court awards.
Last updated: Massachusetts filing fee checked ; other cost figures are our own estimates
Massachusetts divorces typically cost 11% less than the national average of $12,900.
Alimony in Massachusetts
- How Massachusetts decides it
- Statutory formula
- What our estimate is
- Modeled national approximation
- Fault considered
- No
- Domestic violence factor, in our record
- No
- Equal parenting presumption, in our record
- No
- Waiting period before final
- 90 days (about 3 months)
Modeled estimate, shown against the state's own presumptions. The arithmetic that produced this figure is ours rather than Massachusetts's. It is a national approximation that runs the same way in every state: 30 percent of the difference between the two incomes, scaled by a factor for the length of the marriage. No Massachusetts rule is inside that calculation. We have read Mass. Gen. Laws c. 208, § 53(b) and Mass. Gen. Laws c. 208, § 49(b), and we are not holding the figures above to either of them, because the section states a band the court may depart from on written findings rather than a ceiling it cannot pass, and - the reason that would bar it even if it were absolute - § 53(b) measures its share of an income defined by cross-reference to the Massachusetts child support guidelines rather than of the gross figures this page collects, with the two known differences running in opposite directions, so there is no version of the number we could honestly hold you to; and the whole ladder is subordinate to its own opening words, which let a court run past it on a written finding that deviation is required in the interests of justice, so a term clamped to it would be a ceiling Massachusetts does not have. What we hold is set out beside the figures rather than applied to them.
Our record classifies Massachusetts as one of the small group of states that write a spousal support formula into the statute itself. This estimate is not that formula and does not implement it. We have read Mass. Gen. Laws c. 208, § 53(b) and Mass. Gen. Laws c. 208, § 49(b), so what that provision says is on this page; what it is not is applied to the figure above, and the limit below says why in its own terms. Where the two differ, the statute is right and we are not. A family law attorney licensed in Massachusetts can run the real calculation on your own figures, and that is the number to plan around.
Alimony Calculator in Massachusetts: What You Should Know
Section 53(b) of chapter 208 of the Massachusetts General Laws, read from the General Court's own site, says the amount of alimony should generally not exceed the recipient's need or 30 to 35 percent of the difference between the spouses' gross incomes. Section 49(b), read from the same site the following day, limits how long general term alimony runs by the length of the marriage, on a four-band ladder: half the months of the marriage up to five years, then 60 percent to ten, 70 percent to fifteen and 80 percent to twenty. Above twenty years it sets no limit, and section 49(c) lets a court order an indefinite award there. How current is that? The General Court states that its General Laws include every amendment passed before 31 May 2026, so what you are reading is chapter 208 as it stood then; anything enacted over the summer of 2026 sits in the separate Session Laws. Of the 99 acts passed in that gap, 90 have been read one by one and none of them touches chapter 208. The other 9 would not load, so this is narrowed rather than settled, and those 9 are the whole of what is left to check. Two things still stop us doing the calculation for you. Both rules, as read from that site, are written as starting points rather than walls: section 53(b) says the amount should generally not exceed the band, section 49(b) opens by letting a judge go beyond its time limits on a written finding that the interests of justice require it, and section 53(e) lets a court depart from the amount and duration limits alike. And the percentage does not run on the income you entered. Section 53(b) sends you to the definition of income in the Massachusetts child support guidelines, subject to its own exclusions in section 53(c). We have read that definition, out of the Trial Court's own guidelines effective 1 December 2025, and it is why we still will not do the calculation: it counts gross income from whatever source across thirty categories a payslip mostly never shows, which runs the real figure above what you entered, and it also lets a judge count none, some or all of any overtime and second-job income and takes business expenses off self-employment income, which runs it below. Which of those is bigger depends on things this page never asks you. One more thing the ladder does not settle: if there is also a child support order, section 53(g) governs how long alimony and child support can run together, and this page never asks. One thing this estimate cannot do for a Massachusetts case with children, and it is not a detail. Section II. A. 3. of the 2025 Massachusetts Child Support Guidelines adopts Cavanagh v. Cavanagh, 490 Mass. 398, 409-411 (2022), which holds that Mass. Gen. Laws c. 208, sections 53 (a), (c) (2) and (g) must be read together and require a judge, wherever child support is contemplated, to run the numbers BOTH WAYS before deciding on alimony at all: once with alimony calculated first and child support then calculated on the postalimony incomes, once with child support calculated first and alimony after it, and then to compare the base award and the tax consequences of the two and fashion whichever order is most equitable. The Court says in the same passage that in the overwhelming majority of cases the second ordering will leave no alimony to calculate at that step, which is not the same as saying there is no award: the order comes out of the comparison, and a judge who awards nothing has to say why. This page computes one figure, from one ordering, and no Massachusetts child support figure at all, so it does not hold either of the two orders a judge has to compare. Treat the number above as a starting point for that conversation rather than as an answer to it. The figure here is our national approximation on the two incomes you enter, and at a long marriage it runs well past 35 percent of the gross gap.
Key point: The 30 to 35 percent band is section 53(b)'s own and the duration ladder is section 49(b)'s, both read from the General Court's site, which states that its General Laws carry every amendment passed before 31 May 2026. The estimate on this page applies neither. The section measures its share of an income defined in the Massachusetts child support guidelines rather than the gross figures we collect, and that definition, which we have now read, pulls in both directions at once. Both rules also let a judge depart from them on written findings. Take them to a Massachusetts attorney before planning around either.
Tell us the basics
Locked to Massachusetts on this page.
Use your gross (before-tax) annual income.
Use their gross (before-tax) annual income.
This estimate is for planning purposes only and does not constitute legal or financial advice. Consult a licensed family law attorney in your state for guidance specific to your situation.
How Massachusetts awards spousal support
Our Massachusetts record classifies it as a statutory formula state, which means the legislature has written an arithmetic starting point into the statute, so two cases with similar incomes and a similar marriage length should land in a similar place. Here is what that looks like in practice.
Modeled estimate, shown against the state's own presumptions
The arithmetic that produced this figure is ours rather than Massachusetts's. It is a national approximation that runs the same way in every state: 30 percent of the difference between the two incomes, scaled by a factor for the length of the marriage. No Massachusetts rule is inside that calculation. We have read Mass. Gen. Laws c. 208, § 53(b) and Mass. Gen. Laws c. 208, § 49(b), and we are not holding the figures above to either of them, because the section states a band the court may depart from on written findings rather than a ceiling it cannot pass, and - the reason that would bar it even if it were absolute - § 53(b) measures its share of an income defined by cross-reference to the Massachusetts child support guidelines rather than of the gross figures this page collects, with the two known differences running in opposite directions, so there is no version of the number we could honestly hold you to; and the whole ladder is subordinate to its own opening words, which let a court run past it on a written finding that deviation is required in the interests of justice, so a term clamped to it would be a ceiling Massachusetts does not have. What we hold is set out beside the figures rather than applied to them.
Our record classifies Massachusetts as one of the small group of states that write a spousal support formula into the statute itself. This estimate is not that formula and does not implement it. We have read Mass. Gen. Laws c. 208, § 53(b) and Mass. Gen. Laws c. 208, § 49(b), so what that provision says is on this page; what it is not is applied to the figure above, and the limit below says why in its own terms. Where the two differ, the statute is right and we are not. A family law attorney licensed in Massachusetts can run the real calculation on your own figures, and that is the number to plan around.
A formula state gives the court a calculation to run rather than a list of considerations to weigh. The arithmetic works off the gap between the two incomes, not off either income on its own, which is why a raise for the lower-earning spouse cuts the award as surely as a pay cut for the higher earner does. Close the gap and the figure falls, even when neither household is worse off in total.
The formula is a starting point rather than a ceiling or a floor. A judge can depart from it, and departing generally means putting a reason on the record. That is what makes support in a formula state worth planning around in a way it is not elsewhere. What it does not mean is that every figure on this page is that formula. We have read one state's maintenance statute, Illinois', and there the duration is the statute's own arithmetic while the amount is still ours. Everywhere else both figures are a national approximation applied the same way in all fifty states. The panel above the calculator says which of the two you are looking at, beside every number it returns.
Length of marriage enters twice. It scales the amount, and separately it sets how long payments run. That second effect is the one people underestimate: the difference between a nine-year marriage and an eleven-year marriage is often larger in total dollars than a sizable difference in income would be.
One caveat matters more here than anywhere else on this page. Several states run a formula for temporary support while the case is open and then hand post-judgment support back to the court to decide on the statutory factors. Where that is how the state works, the arithmetic is a good guide to what gets paid during the case and a weaker guide to what gets ordered at the end of it. Check which of the two you are looking at before you plan around the number.
What Massachusettscourts weigh, in our data's order
These are the 3 factors our Massachusetts record carries, listed in the order it records them. They are the ground a support argument is actually fought on, so the side that documents them is the side arguing where the statute points.
- Length of the marriageThe strongest single predictor of both how much support is awarded and how long it runs. Short marriages point toward limited, time-boxed support aimed at getting the lower earner back on their feet. Long marriages point toward larger awards over longer terms, and are where indefinite support is still argued for.
- The income difference between the spousesThe figure the calculation is applied to. What matters is the gap, not either income by itself, so a rise in the lower earner's income reduces support just as a fall in the higher earner's does. Two couples with the same household total can reach very different results depending on how that total is split.
- Standard of living during the marriageThe benchmark the court measures need against. It is why the same income gap supports a larger award for a couple who lived expensively than for a couple who saved. Documenting how the household actually spent, through statements rather than recollection, is what makes this factor usable in a hearing.
Does conduct matter in Massachusetts?
No. Marital fault does not appear in the Massachusetts factor list, so the analysis runs on need, ability to pay, and the other factors above rather than on who was to blame for the marriage ending. That is worth knowing before you spend money on it: evidence of an affair or of who left first has little purchase on the support question here, and the same money spent documenting the marital standard of living or a career interrupted for the household does far more work.
Grounds are a separate question from support, and the two do not always line up. Our record has Massachusetts letting you file on fault grounds as well as no-fault grounds, our own record rather than Massachusetts's own law on divorce grounds, so conduct could enter the case through the petition itself. It does not follow that it reaches support: conduct is not in the support factor list here, so a fault filing can change the shape of the case without changing the number.
Support and the property split are one conversation
Our record has Massachusetts dividing marital property by equitable distribution, which means the split starts near even and moves with the same kinds of factors that drive support: length of marriage, each spouse's earning capacity, and what each contributed. That is our own record rather than Massachusetts's own property division law. Because the two questions run on overlapping facts, they are usually negotiated together. Trading a larger share of the estate for a smaller or shorter support award is one of the most common settlement structures there is, and it is often the one that gets a case resolved. Real outcomes in a formula state are less spread out than under open discretion, so a planning band means more here than it does elsewhere. That is a fact about the state rather than about this figure. Unless the panel above says otherwise, the estimate is the same national approximation every state on this site gets. A judge can depart from the statutory result anyway, and most support terms are settled by agreement rather than decided at a hearing.
One practical cost sits underneath that trade. Where the asset being swapped for support is a retirement account, dividing it takes a qualified domestic relations order, which runs $700 to $2,500 in Massachusetts on top of whatever else the case costs. Worth pricing in before you agree to take retirement money instead of monthly support, along with the fact that the two are taxed very differently when you eventually draw on them.
Massachusetts spousal support examples
These three examples run through the same Massachusetts calculator on this page, so the figures match what the tool returns for the same entries. Each is a different shape of case rather than a small variation on the one before, because the two things that move support most, the income gap and the length of the marriage, tend to move together in real households.
Read the range, not the middle figure. We draw the band comparatively narrow here, because a formula leaves less room between the high and low outcomes than open discretion does. The width is our judgement about that spread rather than anything the state publishes. In the second example below, the top of the band is about 1.3 times the typical figure.
Example 1: Four-year marriage, modest standard of living
A short marriage with a real but moderate income gap and no caregiving history. This is the case where support is most often brief or refused outright.
- Higher earner
- $85,000/yr
- Lower earner
- $38,000/yr
- Marriage length
- 4 years
- Likelihood
- Possible
Estimated range: $573 to $955 a month, typically around $764 ($9,168 a year), running 0.8 to 2 years.
Short marriages in Massachusetts may result in limited rehabilitative alimony. Our record classifies Massachusetts as a formula state, so real outcomes there are less spread out than under open discretion. That is a fact about Massachusetts rather than about this number, which is our own approximation and not the state's calculation.
- The two employment statuses you entered have not changed the estimate above. You had to answer to get here, and whichever answer you picked the figure is the same: we calculate on the income figures you entered and impute nothing to either parent. Courts can impute. Where a judge finds a parent voluntarily unemployed or under-employed, a court may set support on what that parent could earn rather than on what they currently bring in, and an imputed figure is set at or above actual earnings rather than below them. Which way that would move your case depends on whose income gets imputed, and that is the part we cannot answer for you: if it is the paying party's, the figure above tends to sit below what a court would order, and if it is the receiving party's it can move in either direction depending on the state and on the two incomes, so we do not put a direction on it. We have read the imputation provision in Illinois and in no other state, Massachusetts included, so nothing on this page is adjusted for one.
- Whether the paying spouse has business income has not changed the estimate above. We ask because it shapes the case rather than the arithmetic: business income is the single most argued-about number in a support case, because what a business pays its owner and what a court treats as that owner's income are frequently different figures, and establishing the second usually takes disclosure or a forensic accountant. Nothing in the figures on this page is adjusted for your answer, so do not read the estimate as having priced it in.
Example 2: Twelve-year marriage, one spouse the primary caregiver
The most common shape of a contested support case: long enough that a career was reshaped around the household, not long enough to reach the territory where indefinite support gets argued.
- Higher earner
- $120,000/yr
- Lower earner
- $45,000/yr
- Marriage length
- 12 years
- Likelihood
- Likely
Estimated range: $1,406 to $2,344 a month, typically around $1,875 ($22,500 a year), running 2.4 to 6 years.
| Factor | Effect |
|---|---|
| Primary caregiver for children | Pushes up |
Medium-length marriages with a significant income gap frequently result in temporary alimony in Massachusetts. Our record classifies Massachusetts as a formula state, so real outcomes there are less spread out than under open discretion. That is a fact about Massachusetts rather than about this number, which is our own approximation and not the state's calculation.
- The two employment statuses you entered have not changed the estimate above. You had to answer to get here, and whichever answer you picked the figure is the same: we calculate on the income figures you entered and impute nothing to either parent. Courts can impute. Where a judge finds a parent voluntarily unemployed or under-employed, a court may set support on what that parent could earn rather than on what they currently bring in, and an imputed figure is set at or above actual earnings rather than below them. Which way that would move your case depends on whose income gets imputed, and that is the part we cannot answer for you: if it is the paying party's, the figure above tends to sit below what a court would order, and if it is the receiving party's it can move in either direction depending on the state and on the two incomes, so we do not put a direction on it. We have read the imputation provision in Illinois and in no other state, Massachusetts included, so nothing on this page is adjusted for one.
- Whether the paying spouse has business income has not changed the estimate above. We ask because it shapes the case rather than the arithmetic: business income is the single most argued-about number in a support case, because what a business pays its owner and what a court treats as that owner's income are frequently different figures, and establishing the second usually takes disclosure or a forensic accountant. Nothing in the figures on this page is adjusted for your answer, so do not read the estimate as having priced it in.
- One thing this estimate cannot do for a Massachusetts case with children, and it is not a detail. Section II. A. 3. of the 2025 Massachusetts Child Support Guidelines adopts Cavanagh v. Cavanagh, 490 Mass. 398, 409-411 (2022), which holds that Mass. Gen. Laws c. 208, sections 53 (a), (c) (2) and (g) must be read together and require a judge, wherever child support is contemplated, to run the numbers BOTH WAYS before deciding on alimony at all: once with alimony calculated first and child support then calculated on the postalimony incomes, once with child support calculated first and alimony after it, and then to compare the base award and the tax consequences of the two and fashion whichever order is most equitable. The Court says in the same passage that in the overwhelming majority of cases the second ordering will leave no alimony to calculate at that step, which is not the same as saying there is no award: the order comes out of the comparison, and a judge who awards nothing has to say why. This page computes one figure, from one ordering, and no Massachusetts child support figure at all, so it does not hold either of the two orders a judge has to compare. Treat the number above as a starting point for that conversation rather than as an answer to it.
Example 3: Twenty-four-year marriage, high standard of living, health limits
A long marriage, a wide income gap, and a documented health issue limiting the recipient's return to work. This is the combination that produces the largest and longest awards.
- Higher earner
- $185,000/yr
- Lower earner
- $30,000/yr
- Marriage length
- 24 years
- Likelihood
- Very likely
Estimated range: $4,069 to $6,781 a month, typically around $5,425 ($65,100 a year), running 4.8 to 12 years.
| Factor | Effect |
|---|---|
| Long marriage (20+ years) | Pushes up |
| Age or health limitations | Pushes up |
Long marriages with an income gap often result in extended or permanent alimony in Massachusetts. Our record classifies Massachusetts as a formula state, so real outcomes there are less spread out than under open discretion. That is a fact about Massachusetts rather than about this number, which is our own approximation and not the state's calculation.
- Marriages of 20+ years may result in indefinite or permanent alimony in Massachusetts.
- The two employment statuses you entered have not changed the estimate above. You had to answer to get here, and whichever answer you picked the figure is the same: we calculate on the income figures you entered and impute nothing to either parent. Courts can impute. Where a judge finds a parent voluntarily unemployed or under-employed, a court may set support on what that parent could earn rather than on what they currently bring in, and an imputed figure is set at or above actual earnings rather than below them. Which way that would move your case depends on whose income gets imputed, and that is the part we cannot answer for you: if it is the paying party's, the figure above tends to sit below what a court would order, and if it is the receiving party's it can move in either direction depending on the state and on the two incomes, so we do not put a direction on it. We have read the imputation provision in Illinois and in no other state, Massachusetts included, so nothing on this page is adjusted for one.
- Whether the paying spouse has business income has not changed the estimate above. We ask because it shapes the case rather than the arithmetic: business income is the single most argued-about number in a support case, because what a business pays its owner and what a court treats as that owner's income are frequently different figures, and establishing the second usually takes disclosure or a forensic accountant. Nothing in the figures on this page is adjusted for your answer, so do not read the estimate as having priced it in.
Set the first and third examples side by side and the scale of what marriage length does becomes clear. The estimate moves from around $764 a month running 0.8 to 2 years to around $5,425 a month running 4.8 to 12 years. Part of that is the wider income gap. Most of it is the twenty extra years.
The ceilings below are worked out on the second example above: a twelve-year marriage, $120,000 and $45,000 a year. Enter your own figures in the calculator at the top of this page and it runs the same limits against them.
What Massachusetts law limits
Massachusetts's law limits what a court can order here, and our estimate already sits inside that limit. We show it anyway, because an estimate that happens to land under a ceiling is not the same as one that was built to respect it. Separately: Our estimate runs past a limit this page states for Massachusetts. We have not clamped it, because the section states a band the court may depart from on written findings rather than a ceiling it cannot pass, and - the reason that would bar it even if it were absolute - § 53(b) measures its share of an income defined by cross-reference to the Massachusetts child support guidelines rather than of the gross figures this page collects, with the two known differences running in opposite directions, so there is no version of the number we could honestly hold you to. The limit is worked out below on the figures you entered so you can see exactly how far past it we are.
Amount: 35 percent of the difference between the spouses' gross incomes, the top of the band § 53(b) states
$2,188 a month
Worked out as 35 percent of $6,250 a month, the difference between the two gross incomes you entered.
Our estimate runs past this
Our estimate gives a range top of $2,344 a month, $156 above it. We have not brought it down to the ceiling, so the gap is the size of our model's overshoot rather than something a court would order.
Massachusetts general term alimony should generally not exceed the recipient's need or 30 to 35 percent of the difference between the spouses' gross incomes, and § 53(b) has been read from the General Court's own host rather than taken from our summary of it. The 35 percent end is worked out above on what you entered. WE ARE NOT HOLDING YOUR ESTIMATE TO IT, and there are two separate reasons, either of which would be enough on its own. The first is the shape of the rule: the section says the amount should GENERALLY not exceed the band, and § 53(e) lets a judge depart from it on written findings, so it is where a court is expected to land rather than a wall it cannot cross. The second is the base, and it would bar the calculation even if the band were absolute. Section 53(b) does not define the income its percentage runs on. It points at the definition of income in the Massachusetts child support guidelines, subject to section 53(c), and this page collects one before-tax figure for each spouse. We have now read that definition, out of the Trial Court's own guidelines, which took effect on 1 December 2025, and it is why we still will not do the calculation. It counts gross income from whatever source and lists 30 kinds of it, and at least 13 of those never appear on a payslip, which would put the real figure above what you entered. It also lets a judge count none, some or all of any overtime and second-job income, and it takes business expenses off self-employment income, which would put it below. Which of those is bigger depends on things this page never asks you, so we cannot tell you which way our figure would be wrong.. What we CAN now tell you is how current the section is: the General Court states that its General Laws include every amendment passed before 31 May 2026, so what you are reading is the section as it stood then, with anything enacted in the summer of 2026 still sitting in the separate Session Laws. Of the 99 acts passed in that gap, 90 have been read one by one and none of them touches chapter 208. The other 9 would not load, so this is narrowed rather than settled, and those 9 are the whole of what is left to check. Our own estimate is a separate matter again and is not this calculation: it runs on a flat 30 percent of the same gap, then scaled by a multiplier for the length of the marriage that is applied in every case, so the top of our range passes 35 percent from an eleven-year marriage upward and our typical figure passes it from a sixteen-year marriage upward. The need half of the limit is not arithmetic and we cannot work it at all.
Where the limit does not apply: § 53(b) says the amount "should generally not exceed" the recipient's need or the band, which is not the same shape as a provision saying a court may not order more. § 53(e) lets a court depart from the amount and duration limits on written findings that departure is necessary, and it lists the grounds. So the band is where a Massachusetts court is expected to land rather than a wall it cannot cross, and a case with findings behind it is not the general case this row describes.
Read from the statute. Mass. Gen. Laws c. 208, § 53(b), served by malegislature.gov and retrieved 2026-08-27. the enacting act and the codification date themselves separately, and it is the second that governs what was read. Chapter 124 of the Acts of 2011, "AN ACT REFORMING ALIMONY IN THE COMMONWEALTH", was approved on 2011-09-26 and took effect on 2012-03-01, and its section 3 added §§ 48 to 55 to c. 208. Sections 48 to 55 carry no credits table, no source line and no amendment history of their own, so nothing on the page says when they were last touched. What dates them is the General Court's currency statement over the whole codification, read at https://malegislature.gov/Laws/GeneralLaws on 2026-08-28: "This site includes all amendments to the General Laws passed before May 31, 2026, for laws enacted since that time, see the 2026 Session Laws." That horizon is 2026-05-31 and no further. The same host separately states that its Session Laws archive holds acts adopted as of 2026-08-10, so an act passed in the ten weeks between those two dates is in the archive and is not necessarily in these sections. That gap has since been narrowed and NOT closed: of the 99 chapters of the Acts of 2026 sitting in it, 90 were rendered and read one by one on 2026-08-29 and none of them references c. 208, and nine did not render. Standing Rule 41 values an incomplete search's negative at nothing, so this is a bounded outstanding question rather than an answered one, and the nine chapter numbers are held in `MA_SESSION_LAWS_WINDOW_SWEEP` rather than typed here. The page also carries "NOTICE: This is NOT the official version of the General Laws of Massachusetts", the official version being the Secretary of the Commonwealth's Acts and Resolves. The codification statement rests on 2 independent retrievals on different days and the Session Laws statement on 2 independent retrievals on different days, all of them through browser research sessions on an egress path this repository does not have, so nothing here can re-fetch either page. Neither date moved between the readings. Both statements were re-read on 2026-08-31 and neither had moved, which is the reason that sentence reads the way it does rather than a phase restating what it already held.
“the amount of alimony should generally not exceed the recipient's need or 30 to 35 per cent”
Duration: a share of the length of the marriage, by band, with no limit above twenty years
101 months (8.4 years)
Worked out as 70 percent of the 144 months your marriage has run, which is the band § 49(b) reaches with "If the length of the marriage is 15 years or less, but more than 10 years".
Our estimate sits inside this
Massachusetts ties how long general term alimony runs to the length of the marriage, on a four-band ladder in § 49(b) that we have read from the General Court's own host. The figure above is that ladder worked out on the marriage length you entered. We are showing it rather than applying it, and the reason is in the subsection's first words: the whole ladder is written as an exception to itself, so a judge who makes a written finding that going longer is required in the interests of justice is following § 49(b) rather than departing from it. A term we quietly shortened to this number would be telling you Massachusetts has a wall where it has a starting point. Two more things this ladder does not decide. Above a twenty-year marriage it sets no limit at all, and § 49(c) lets a court order an indefinite award there. And if there is also a child support order in your case, § 53(g) governs how long the two can run together, which this page has no way to work out because it never asks.
Where the limit does not apply: two things sit outside this ladder and the second is the one likely to reach you. § 49(c) lets a court order an indefinite award once a marriage passes 20 years, which is why we show no limit at all above that. And § 53(g) says that where alimony runs alongside or after a child support order, the COMBINED duration of the two may not exceed the longer of the duration available at the time of divorce or rehabilitative alimony beginning when child support ends. This page never asks whether you have a child support order, so if you do, § 53(g) rather than this ladder is what governs how long the two together can run, and it can reach further than the figure above rather than less far.
Read from the statute. Mass. Gen. Laws c. 208, § 49(b), served by malegislature.gov and retrieved 2026-08-28. the enacting act and the codification date themselves separately, and it is the second that governs what was read. Chapter 124 of the Acts of 2011, "AN ACT REFORMING ALIMONY IN THE COMMONWEALTH", was approved on 2011-09-26 and took effect on 2012-03-01, and its section 3 added §§ 48 to 55 to c. 208. Sections 48 to 55 carry no credits table, no source line and no amendment history of their own, so nothing on the page says when they were last touched. What dates them is the General Court's currency statement over the whole codification, read at https://malegislature.gov/Laws/GeneralLaws on 2026-08-28: "This site includes all amendments to the General Laws passed before May 31, 2026, for laws enacted since that time, see the 2026 Session Laws." That horizon is 2026-05-31 and no further. The same host separately states that its Session Laws archive holds acts adopted as of 2026-08-10, so an act passed in the ten weeks between those two dates is in the archive and is not necessarily in these sections. That gap has since been narrowed and NOT closed: of the 99 chapters of the Acts of 2026 sitting in it, 90 were rendered and read one by one on 2026-08-29 and none of them references c. 208, and nine did not render. Standing Rule 41 values an incomplete search's negative at nothing, so this is a bounded outstanding question rather than an answered one, and the nine chapter numbers are held in `MA_SESSION_LAWS_WINDOW_SWEEP` rather than typed here. The page also carries "NOTICE: This is NOT the official version of the General Laws of Massachusetts", the official version being the Secretary of the Commonwealth's Acts and Resolves. The codification statement rests on 2 independent retrievals on different days and the Session Laws statement on 2 independent retrievals on different days, all of them through browser research sessions on an egress path this repository does not have, so nothing here can re-fetch either page. Neither date moved between the readings. Both statements were re-read on 2026-08-31 and neither had moved, which is the reason that sentence reads the way it does rather than a phase restating what it already held.
“Except upon a written finding by the court that deviation beyond the time limits of this section are required in the interests of justice ... If the length of the marriage is 5 years or less ... If the length of the marriage is 10 years or less, but more than 5 years ... If the length of the marriage is 15 years or less, but more than 10 years ... If the length of the marriage is 20 years or less, but more than 15 years”
How long spousal support lasts in Massachusetts
Duration is the question people ask second and worry about first, and it is decided differently from amount. Amount answers what the lower earner needs and what the higher earner can pay. Duration answers a narrower question: how long it should reasonably take the lower earner to get where they can stand on their own, and whether that is realistically possible at all.
The table below runs one couple through the Massachusetts estimate at seven marriage lengths. Incomes are held at $110,000 and $40,000 a year with no children and no health limits, so the only thing changing between rows is how long the marriage lasted.
| Marriage length | Band | Typical monthly | Estimated duration | Likelihood |
|---|---|---|---|---|
| 2 years | Very short marriage | $700 | 0.5 to 1 years | Unlikely |
| 5 years | Short marriage | $1,138 | 1 to 2.5 years | Possible |
| 10 years | Mid-length marriage | $1,488 | 2 to 5 years | Likely |
| 15 years | Long marriage | $1,750 | 3 to 7.5 years | Very likely |
| 20 years | Long marriage, common statutory threshold | $2,100 | 4 to 10 years | Very likely |
| 25 years | Very long marriage | $2,450 | 5 to 12.5 years | Very likely |
| 30 years | Very long marriage, retirement in view | $2,800 | 6 to 15 years | Very likely |
Two things are worth reading off that table. The first is that a five-year marriage and a twenty-year marriage are not the same case with a different number attached: at five years the estimate runs 1 to 2.5 years and support is only possible, while at twenty years it runs 4 to 10 years and is very likely. The second is that the ranges stay wide at every length, because duration is where courts exercise the most judgment and where settlements do the most trading.
Support also ends on events, not only on dates. Across states the usual terminating events are the death of either spouse, the recipient remarrying, and in many places the recipient living with a new partner in a marriage-like arrangement. Retirement in good faith at a normal age is the other common ground for cutting support off or reducing it. Whether Massachusetts treats each of those the same way is a question for a licensed attorney there, and it is worth asking before you sign an agreement rather than after.
Support while the Massachusetts case is still running
Massachusetts carries a statutory waiting period of 3 months before a divorce can be finalized, and a contested case here runs about 1.3 years on average against 4 months when both spouses agree. States start that clock in different places, some at filing, some at service, and some at the date the two of you separated, so check where yours begins. Massachusetts sets no minimum residency before filing. That stretch of time is the reason temporary support exists. A court can order support early in the case, well before anything final is decided, so the lower-earning spouse is not left covering a separate household on one income for about 1.3 years while the rest gets sorted out. If money is tight now, asking for a temporary order is almost always faster than waiting for the judgment, and the months spent waiting are rarely made up afterwards.
Massachusetts's own durational rule has been read. Mass. Gen. Laws c. 208, § 49(b) is set out in the limits panel above, which says what the rule provides and whether the figures on this page are held to it, and the calculator at the top of this page runs the same rule against your own entries. Wherever that panel says the rule was not applied, the duration column above is our general model rather than a Massachusetts answer.
The kinds of spousal support a court can order
Support is not one thing. States use different names for the categories below and not every state recognizes all of them, but the underlying purposes are consistent, and knowing which one is being discussed tells you what the argument is really about.
- Temporary support, while the case is open
- Ordered after filing and before judgment, purely to keep two households running while the case is decided. In Massachusetts that window matters more than people expect: a contested case averages about 1.3 years, so this is often the largest block of support anyone actually receives. It ends when the final judgment lands, and it does not commit the court to continuing at the same figure.
- Rehabilitative support
- Time-limited support tied to a plan: finishing a degree, renewing a license, completing a training program, or re-entering a field after years away. It is the most common outcome for short and mid-length marriages. Because it is tied to a plan, the strongest version of this request comes with the actual program, its length, and its cost rather than a general statement about needing time.
- Durational or term support
- A set number of years, usually pegged to the length of the marriage, without needing to be tied to a specific rehabilitation plan. This is the category most reform legislation over the past decade has been about, generally replacing open-ended awards with a term the statute caps.
- Indefinite or permanent support
- Support with no end date written into it, reserved for long marriages where the age, health, or work history of the lower earner means self-sufficiency is not a realistic outcome. Indefinite does not mean unchangeable: it stays modifiable on a substantial change in circumstances, and it generally ends on the usual terminating events.
One of these is the statute’s own. One of these we can now give you in the statute's own words. Mass. Gen. Laws c. 208, § 48 defines 4 forms of alimony and we have rendered one of them: "General term alimony", the periodic payment of support to a recipient spouse who is economically dependent. The other 3 we have not read, as of 2026-08-29, so we are not naming them, and the descriptions above are still the general framework rather than the Massachusetts list.
How spousal support is taxed
This changed in a way that still catches people out. Under the federal Tax Cuts and Jobs Act, for any divorce or separation agreement executed after December 31, 2018, alimony is not deductible by the spouse paying it and is not taxable income to the spouse receiving it. The federal rule is the same in Massachusetts as everywhere else, because it is federal.
Two consequences follow, and both are worth understanding before you negotiate. Support is now paid out of after-tax dollars, so a given monthly figure costs the payer considerably more than the same figure did before 2019. And the older advice that a large award could be made cheaper by the deduction no longer applies at all. Agreements executed on or before December 31, 2018 generally keep the old treatment, though modifying one can bring it under the current rule if the modification says so.
State income tax is a separate question from the federal one, and it is not something this page models. Check the federal treatment against the IRS guidance below, and check the Massachusetts treatment with a CPA or a licensed family law attorney in the state.
- IRS Topic No. 452, alimony and separate maintenance, the federal rule on deductibility and taxability.
What it costs to argue about support in Massachusetts
Support is the issue most likely to turn a divorce contested, and it is also the one where the arithmetic of fighting is easiest to get wrong. Below are the Massachusetts figures set against what is actually in dispute.
- Attorney rate
- $300 to $600/hr
- Mediation session
- $325
- Uncontested case
- $2,500 to $7,000
- Contested case
- $16,000 to $60,000
Put those next to the second worked example above, where the estimate came to $1,875 a month, or $22,500 a year. A contested case in Massachusetts runs $16,000 to $60,000, which is the equivalent of roughly 9 to 32 months of that support. Ten billable hours on each side, which a single contested motion can consume, costs $3,000 to $6,000 per side at Massachusetts rates. Two mediation sessions cost $650 shared between you.
The sharper way to read those figures is as a difference rather than a total. An uncontested Massachusetts divorce runs $2,500 to $7,000 and takes 4 months. Contesting it adds $13,500 to $53,000, or roughly 7 to 28 months of the support in that example, and stretches the case to about 1.3 years. That difference is the actual price of the argument, and it is the number to hold against whatever separates your position from your spouse's.
None of that means give up a position worth holding. Where the gap between the two sides is large, where one spouse's income is hard to pin down, or where the marriage was long enough that duration is the real question, representation earns its cost several times over. But where the two positions sit a few hundred dollars a month apart, the arithmetic usually says settle: the fight can cost more than the difference it is about. Our record does not have Massachusetts requiring mediation before a contested hearing, but at $325 a session against a contested case starting at $16,000, it is usually the cheapest serious attempt at a resolution available. That is our own record rather than Massachusetts's own court rules. Our record carries collaborative divorce as available in all fifty states, so it says nothing specific about Massachusetts; whether trained collaborative attorneys practise near you is a local question. Where it is on offer, both sides commit in writing to settle without litigation and share one financial expert instead of hiring two.
Massachusetts spousal support authority
The Massachusetts spousal support authority in our data is MA Alimony Reform Act, Acts of 2011 c. 124, effective 2012-03-01. That authority controls. The estimate on this page models how support is decided in Massachusetts, it does not reproduce the statutory text, and where the two differ the statute is right and we are not.
Where to check this yourself
- Massachusetts courts, the state judiciary site from our Massachusetts source record.
- American Bar Association, Section of Family Law, which publishes state-by-state family law comparisons.
- IRS Topic No. 452, alimony and separate maintenance, for the federal tax treatment described above.
Alimony in Massachusetts - Frequently Asked Questions
Does Massachusetts have an alimony formula?
Our record says yes and the part of Massachusetts's law we have opened does not settle it. That classification came into our data at the original build: it puts Massachusetts among the small group of states said to write an arithmetic starting point into the statute rather than leaving the amount to the judge. What has since been read is Mass. Gen. Laws c. 208, § 53(b) and Mass. Gen. Laws c. 208, § 49(b), and those provisions bound the amount and the term rather than supplying the starting calculation, so opening them confirmed the classification neither way. The figures on this page are our own national approximation and not Massachusetts's arithmetic, which every panel that shows one says. The provisions we did read are set out in the limits panel on this page, with what we have and have not done with them. The authority in our data is MA Alimony Reform Act, Acts of 2011 c. 124, effective 2012-03-01.
How is spousal support calculated in Massachusetts?
Not by anything on this page. Our record says the Massachusetts statute sets out a calculation, and the calculation is not the part of Massachusetts's law anybody here has read: what was read is Mass. Gen. Laws c. 208, § 53(b) and Mass. Gen. Laws c. 208, § 49(b), which bound the amount and the term instead. Those provisions are reproduced in the limits panel above, in the instrument's own words where we hold them. The statutory factors our Massachusetts record carries are length of the marriage, the income difference between the spouses, and standard of living during the marriage. What our estimate does is 30 percent of the difference between the two incomes, scaled by a factor for the length of the marriage, which is the same approximation it applies in every state, so read it as a planning band and take the statutory figure from the statute itself or from a family law attorney licensed in Massachusetts.
How long does alimony last in Massachusetts?
Duration scales with the length of the marriage more than with anything else. Running the same couple through our Massachusetts estimate at different marriage lengths, a 10-year marriage produces support of 2 to 5 years and a 20-year marriage produces 4 to 10 years. Short marriages under 5 years usually produce brief rehabilitative support or none at all. Long marriages are where indefinite support is still argued for, particularly when age, health, or years out of the workforce mean the lower earner cannot realistically become self-supporting. Support also ends on events rather than only on dates: the death of either spouse, the recipient remarrying, and in many states the recipient cohabiting with a new partner.
How much alimony is typical in Massachusetts?
There is no single figure, because the answer depends on the gap between the two incomes and how long the marriage lasted. As a worked example, a 12-year Massachusetts marriage where one spouse earns $120,000 a year, the other earns $45,000, and the lower earner was the primary caregiver produces an estimate of $1,406 to $2,344 a month, typically around $1,875, running 2.4 to 6 years. Our record classifies Massachusetts as a formula state, so real outcomes there are less spread out than under open discretion. That is a fact about Massachusetts rather than about this number, which is our own approximation and not the state's calculation. Run your own figures in the calculator on this page.
Can alimony be modified in Massachusetts?
Yes. Either spouse can ask the court to modify alimony based on a substantial change in circumstances, such as a significant change in income, retirement, the recipient's remarriage or cohabitation, or a serious health change. Massachusetts courts typically require the change to be material and not anticipated at the time of the original order.
Does fault affect alimony in Massachusetts?
No. Massachusetts does not weigh marital fault in setting alimony. Courts focus on financial need, ability to pay, and the other statutory factors rather than blame for the divorce.
Is alimony tax deductible in Massachusetts?
For divorces finalized after December 31, 2018, alimony is no longer deductible by the payer or taxable to the recipient under the federal Tax Cuts and Jobs Act. This federal rule applies in Massachusetts as it does in every state. Older orders entered before 2019 generally retain the prior tax treatment unless modified.
This estimate is for planning purposes only and does not constitute legal or financial advice. Consult a licensed family law attorney in your state for guidance specific to your situation.
How we calculate this estimate
Alimony is the least formula-driven number in a divorce, and outside one state this estimate is a national approximation rather than any state's own rule. It works from the gap between the two incomes, scaled by how long the marriage lasted, with the share of that gap set by how your state is recorded as deciding support and by the standard of living during the marriage. The other inputs, employment status on both sides, caregiving history, age and health, and marital fault where your state weighs it, move the factors and the likelihood rather than the arithmetic. The output is a monthly range with a duration range, a likelihood rating, and the specific factors pushing your case up or down.
What the estimate assumes for Massachusetts
- One state's own calculation is implemented, in half. Six states write a spousal support calculation into their own statute. We have read one of them, 750 ILCS 5/504, and the duration our Illinois calculator returns is that statute's arithmetic rather than our model's: the length of the marriage multiplied by a factor the statute fixes for each year of it, wherever the guideline route reaches the case. The Illinois AMOUNT is still ours, because the statute works it out from net annual income and this calculator collects gross. Everywhere else, both figures are the same national approximation. Every alimony figure we return says which of the two it is, beside it.
- The share of the income gap our estimate applies depends on which of three groups our record puts your state in, and the marriage-length factor then multiplies it in every case. A formula state takes 30 percent of the gap, which the factor moves to between 12 and 48 percent of it. A discretionary state takes between 22 and 38 percent depending on the standard of living during the marriage, moving to between 8.8 and 60.8 percent. A hybrid state averages the two, landing between 10.4 and 54.4 percent. Those are the figures before any ceiling a state sets, every one of them is ours, and no state publishes any of them.
- Duration is modeled at about a third of the length of the marriage, with a band around it and a cap at the length of the marriage, in forty-nine states. How wide that band runs depends on the same grouping: a formula or hybrid state gets 20 to 50 percent of the length of the marriage, a discretionary state 13.3 to 66.7 percent. Several of them set duration as a share of the marriage by statute and none of those shares is a third. Illinois is the exception: its ladder runs from .20 below five years to .80 at nineteen and opens up at twenty, we have read it, and our Illinois duration is that calculation rather than the model.
- State limits are applied in five states and shown without being applied in six more. Delaware, Florida, Kansas, Louisiana and Texas each set a ceiling on the amount or the term, we have read that ceiling out of the state's own instrument, and where our arithmetic ran past it the ceiling is what produced the figure. Florida, Louisiana and Texas are the ones whose ceilings are worked on a base the instrument does not use: their rules measure an income this page does not collect, so what we apply is a generous version of the state's own limit, which is why we are willing to bring a figure down to it and never up to it. Each of those pages says so beside the figure. Massachusetts and Maine's limits are rebuttable presumptions rather than ceilings, so they are shown beside the figure rather than applied to it. Massachusetts carries a second reason on top of that one, set out on its own page beside the figure, and it is the harder of the two: what the rule measures is not what this page collects. Indiana, New Hampshire, New Jersey and Utah have limits our own pages state and nobody here has opened the document behind, so those are worked out on your entries and set beside our estimate without changing it. We do not clamp a number to a figure we could not read. The other 39 states have no limit in our records, which is a statement about our records rather than about their law: where your state limits an amount or a term and we hold nothing for it, the limit still controls and this estimate can exceed it.
- Which of the three approaches a state takes came into our data at the original build. It has since been checked against the state's own rendered instrument in 4 states, Florida, Illinois, New York and Texas, and each of those pages names the instrument that settled it. In the other 46 it is still our record's classification with no statute behind it.
- Fault is only factored in for states where our record says fault can affect a support award.
- The one cost-table figure this page uses is your state's waiting period, and it is our own record rather than a reading of the statute. Nobody here has opened a dissolution statute to check the number, and the same field carries two different things across the fifty states, a wait that runs from filing and a separation requirement that runs from the day you separated. Confirm it with the clerk of court where you will file.
- The estimate is pre-tax. It does not model how support affects either spouse's tax return.
Where the estimate stops
Outside the Illinois duration, this is our model rather than your state's. In a state that publishes its own calculation the number to plan around is that calculation, and a family law attorney licensed there can run it on your figures. Even where a guideline applies, a judge can depart from it and most support terms are negotiated rather than tried, so treat the range as a planning band rather than a prediction of your order.
Read the full methodology for how every calculator on the site is built.
Sources
Massachusetts courts and statutes
- mass.gov
- MA Alimony Reform Act, Acts of 2011 c. 124, effective 2012-03-01
- Massachusetts Judgment of Divorce Nisi - 90-day (1B) / 120-day (1A) period before judgment absolute (Mass.gov)
Where to read more
Background reading, not where the figures above came from. No number on this page is taken from any of these.
About this page
Written by Barron Hansen
I am an app developer who is dedicated to building the highest-value, most accurate web apps possible, that people want to use every day.