Michigan Alimony Calculator
Estimate spousal support in Michigan, where judicial discretion decides the award. Includes likelihood, a modeled amount range, duration, and the statutory factors that decide what a court awards.
Last updated: Michigan cost figures are our own estimates, not independently verified
By our own estimates, Michigan divorces cost about 40% less than our national working figure of $12,900.
Alimony in Michigan
- How Michigan decides it
- Judicial discretion
- What our estimate is
- Modeled national approximation
- Fault considered
- Yes
- Domestic violence factor, in our record
- No
- Equal parenting presumption, in our record
- No
- Waiting period before final, in our record
- 60 days (about 2 months)
Modeled estimate, not a state calculation. This figure is ours rather than Michigan's. The arithmetic behind it is a national approximation that runs the same way in every state: between 22 and 38 percent of the difference between the two incomes depending on the standard of living during the marriage, scaled by a factor for the length of the marriage. What has been read of Michigan's own law is MCL 552.23, and none of it is applied inside this figure. Read it as a planning band rather than a figure a court has committed to, because a Michigan judge applying Michigan's own law can land somewhere else.
Alimony Calculator in Michigan: What You Should Know
Michigan calls alimony 'spousal support' and decides it on the facts rather than by a formula. Its statute, MCL 552.23(1), read from the copy www.legislature.mi.gov serves, lets a court award spousal support "as the court considers just and reasonable, after considering the ability of either party to pay and the character and situation of the parties, and all the other circumstances of the case", and numbers no factors. The factors come from case law. Michigan Court of Appeals opinions on the court's own site list fourteen, quoting Olson v Olson (2003), among them the past relations and conduct of the parties, the length of the marriage, the parties' abilities to work and to pay, their needs and health, the prior standard of living, a party's fault in causing the divorce, and general principles of equity. The opinions we read are unpublished, and as of 2026-10-17 we had read them rather than Olson itself. So Michigan courts can consider fault in awarding spousal support even though Michigan is a no-fault divorce state. The same opinions say support may be paid periodically or in gross: an award in gross, a lump sum or a definite sum in installments, is considered nonmodifiable, while a periodic award can be modified under MCL 552.28 unless the judgment of divorce expresses the parties' intent to make it unmodifiable.
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Locked to Michigan 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 Michigan awards spousal support
Our Michigan record classifies it as a discretionary state, which means the court weighs a list of factors and sets an amount it considers fair on the facts in front of it. Whether the Michigan statute also gives the court figures to take into account is a question this page leaves open. What we have read of Michigan's law is MCL 552.23, and we hold no guidelines out of those provisions, which is a statement about our reading rather than a finding that the statute has none. Here is what that looks like in practice.
Modeled estimate, not a state calculation
This figure is ours rather than Michigan's. The arithmetic behind it is a national approximation that runs the same way in every state: between 22 and 38 percent of the difference between the two incomes depending on the standard of living during the marriage, scaled by a factor for the length of the marriage. What has been read of Michigan's own law is MCL 552.23, and none of it is applied inside this figure. Read it as a planning band rather than a figure a court has committed to, because a Michigan judge applying Michigan's own law can land somewhere else.
In a state our record classifies this way, the judge is told what to consider rather than handed an amount to reach. The court weighs the factors against the evidence each side puts up, and the number that comes out is the number that fits those facts in that courtroom. Whether the statute also gives the court figures to take into account is a separate question, and the paragraph above says how far we have read this state's statute to answer it.
That has a consequence worth being honest about: two families with identical finances can walk out with materially different orders, and neither result is wrong. The variation is not a flaw in the approach, it is the approach: the court is given room to fit the order to the case in front of it.
What that means practically is that evidence matters more here than a calculator does. The spouse who can document the marital standard of living, a career interrupted for the household, or a genuine limit on future earning capacity is arguing on the ground the statute actually points the judge toward. Support is also settled by agreement far more often than it is decided at a hearing, so the realistic question is usually what the other side will accept rather than what a judge would impose.
What Michigan courts weigh, in our data's order
These are the 6 factors our Michigan 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.
- 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.
- Earning capacity of each spouseCapacity, not current pay. A court can attribute income to a spouse it decides could be earning more, and can equally accept that a spouse who left the workforce for a decade cannot step back in at the old salary. Evidence about the local job market, licensing, and retraining timelines is what moves this one.
- Financial resources and assets of each spouseSupport and property division are decided together, not in separate silos. A spouse who leaves with income-producing assets needs less monthly support to reach the same place, which is why trading a larger share of the estate against a smaller support award is one of the most common settlement structures there is.
- Contributions to the marriageFinancial and otherwise. Raising children, running the household, and supporting the other spouse through school or the early years of a business all count here. This is the factor that gives a spouse who earned little on paper a claim grounded in what they actually contributed.
- Marital faultConduct during the marriage is part of the analysis in this state, so who did what can bear on the award. How far it goes varies enormously: in most states weighing it is all a court does, and in a few our own pages say it can rule out an award altogether, which is set out separately on this page for the states where that is what our copy says. Fault also raises the cost of the case, because proving conduct means discovery and testimony a no-fault case never has to pay for. None of it is inside our estimate.
Does conduct matter in Michigan?
It can. Michigan's statute, MCL 552.23, read from the copy www.legislature.mi.gov serves, does not mention fault, and the factors come from case law. Michigan Court of Appeals opinions on the court's own site list fourteen, quoting Olson v Olson (2003), and two of them are "the past relations and conduct of the parties" and "a party’s fault in causing the divorce". So fault is one factor a Michigan court may weigh in deciding spousal support, not a bar on an award. The opinions we read are unpublished, and we read them rather than Olson itself.
Grounds are a separate question from support, and the two do not always line up. Our record has Michigan offering no-fault grounds only, our own record rather than Michigan's own law on divorce grounds, so on our record there is no fault ground to plead in the petition. Conduct is still in the support factor list here, which means it can be raised on the money side even though it cannot be the basis for the divorce itself. That is an easy distinction to miss.
Support and the property split are one conversation
Our record has Michigan 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 Michigan'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. Treat this as a planning band, not a prediction. Where the amount is left to the court's weighing of the factors, no calculator can tell you what a particular judge will order. What the estimate is good for is telling you roughly what range the conversation starts in, and which facts move it.
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 $500 to $1,500 in Michigan 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.
Michigan spousal support examples
These three examples run through the same Michigan 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 single figure inside it. We draw the band deliberately wide here. Open discretion produces a wider spread of real outcomes than a formula does, and a narrow band would misrepresent how much room the court actually has. 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 1.7 times our own estimate inside it.
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: $280 to $980 a month, with our own estimate at $560 ($6,720 a year), running 0.5 to 2.7 years.
| Factor | Effect |
|---|---|
| Short marriage (under 5 years) | Pushes down |
| Non-financial contributions | Pushes up |
Short marriages in Michigan may result in limited rehabilitative alimony. Our record shows no statutory formula for Michigan, so outcomes vary significantly between judges and cases. The figure above is our own approximation rather than anything Michigan publishes.
- Michigan judges have broad discretion in setting alimony. This estimate reflects typical outcomes, but individual results vary significantly based on the specific judge and circumstances.
- 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, Michigan 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: $844 to $2,953 a month, with our own estimate at $1,688 ($20,256 a year), running 1.6 to 8 years.
| Factor | Effect |
|---|---|
| Non-financial contributions | Pushes up |
| Primary caregiver for children | Pushes up |
Medium-length marriages with a significant income gap frequently result in temporary alimony in Michigan. Our record shows no statutory formula for Michigan, so outcomes vary significantly between judges and cases. The figure above is our own approximation rather than anything Michigan publishes.
- Michigan judges have broad discretion in setting alimony. This estimate reflects typical outcomes, but individual results vary significantly based on the specific judge and circumstances.
- 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, Michigan 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 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: $2,893 to $10,127 a month, with our own estimate at $5,787 ($69,444 a year), running 3.2 to 16 years.
| Factor | Effect |
|---|---|
| Non-financial contributions | Pushes up |
| Age or health limitations | Pushes up |
In our estimate, a long marriage with an income gap produces the longest terms. Whether a Michigan court can order support with no end date is not something this estimate answers. Our record shows no statutory formula for Michigan, so outcomes vary significantly between judges and cases. The figure above is our own approximation rather than anything Michigan publishes.
- Michigan judges have broad discretion in setting alimony. This estimate reflects typical outcomes, but individual results vary significantly based on the specific judge and circumstances.
- Marriages of 20 or more years produce the longest terms in our estimate. Whether a Michigan court can order support with no end date is not something this estimate answers.
- 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, Michigan 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 $560 a month running 0.5 to 2.7 years to around $5,787 a month running 3.2 to 16 years. Part of that is the wider income gap. Most of it is the twenty extra years.
How long spousal support lasts in Michigan
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 Michigan 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 | Our own estimate, monthly | Estimated duration | Likelihood |
|---|---|---|---|---|
| 2 years | Very short marriage | $630 | 0.3 to 1.3 years | Unlikely |
| 5 years | Short marriage | $1,024 | 0.7 to 3.3 years | Possible |
| 10 years | Mid-length marriage | $1,339 | 1.3 to 6.7 years | Likely |
| 15 years | Long marriage | $1,575 | 2 to 10 years | Very likely |
| 20 years | Longer marriage | $1,890 | 2.7 to 13.3 years | Very likely |
| 25 years | Very long marriage | $2,205 | 3.3 to 16.7 years | Very likely |
| 30 years | Very long marriage, retirement in view | $2,520 | 4 to 20 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 0.7 to 3.3 years and support is only possible, while at twenty years it runs 2.7 to 13.3 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 Michigan 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.
How long a case runs in Michigan
Our record has a waiting period of 2 months for Michigan before a divorce can be finalized, and on our own estimates a contested case here runs about 1.0 years, against 3 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. Our record also has 6 months of residency in Michigan before you can file at all.
Data pending verification. Some states cap support duration by statute at a set share of the length of the marriage. We have not verified whether Michigan does, so the duration column above is our general model rather than a Michigan rule, and we are not stating a durational formula we have not checked. Confirm it against the Michigan sources below or with a licensed family law attorney in the state.
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.
- 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.
Data pending verification. Our Michigan record does not list which of these categories Michigan recognizes by name or what it calls them, so the descriptions above are the general framework rather than a Michigan list. We would rather say that than name four Michigan categories we have not checked.
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 Michigan 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 Michigan 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 Michigan
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 Michigan figures set against what is actually in dispute.
- Attorney rate
- $200 to $400/hr
- Mediation session
- $225
- Uncontested case
- $1,500 to $4,500
- Contested case
- $11,000 to $38,000
Put those next to the second worked example above, where the estimate came to $1,688 a month, or $20,256 a year. A contested case in Michigan runs $11,000 to $38,000, which is the equivalent of roughly 7 to 23 months of that support. Ten billable hours on each side, which a single contested motion can consume, costs $2,000 to $4,000 per side at Michigan rates. Two mediation sessions cost $450 shared between you.
The sharper way to read those figures is as a difference rather than a total. An uncontested Michigan divorce runs $1,500 to $4,500 and takes 3 months. Contesting it adds $9,500 to $33,500, or roughly 6 to 20 months of the support in that example, and stretches the case to about 1.0 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 Michigan requiring mediation before a contested hearing, but at $225 a session against a contested case starting at $11,000, it is usually the cheapest serious attempt at a resolution available. That is our own record rather than Michigan's own court rules. Our record carries collaborative divorce as available in all fifty states, so it says nothing specific about Michigan; 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.
Michigan spousal support authority
The part of Michigan's own spousal support law we have read is MCL 552.23, and what we hold out of it is MCL 552.23(1), which establishes that on a judgment of divorce or separate maintenance, where what each party was awarded is insufficient for their suitable support, the court may award spousal support, in gross or otherwise, as it considers just and reasonable after considering the ability of either party to pay, the character and situation of the parties and all the other circumstances of the case, and that the section numbers no factors and sets out no calculation. That reading covers MCL 552.23, which numbers no factors; the factors come from case law, and the fourteen factors that Michigan Court of Appeals opinions list, quoting Olson v Olson (2003), are read from those opinions rather than from Olson itself. Nothing we hold out of it calculates an award, so the estimate on this page is our own model. Where the statute and this page differ, the statute is right and we are not.
Where to check this yourself
- Michigan courts, the state judiciary site from our Michigan 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 Michigan - Frequently Asked Questions
Does Michigan have an alimony formula?
Not in our records. Michigan is one of the forty-three states our data classifies as leaving the amount to the judge rather than putting a calculation in the statute, and that classification came into our data at the original build. MCL 552.23 has been read here in full, what we hold out of it is MCL 552.23(1), which establishes that on a judgment of divorce or separate maintenance, where what each party was awarded is insufficient for their suitable support, the court may award spousal support, in gross or otherwise, as it considers just and reasonable after considering the ability of either party to pay, the character and situation of the parties and all the other circumstances of the case, and that the section numbers no factors and sets out no calculation. The reading confirms the classification: subsection (1) has the court award support "as the court considers just and reasonable" after considering the circumstances it names, and sets out no calculation. That reading covers MCL 552.23, which numbers no factors; the factors come from case law, and the fourteen factors that Michigan Court of Appeals opinions list, quoting Olson v Olson (2003), are read from those opinions rather than from Olson itself. On our record, judges are given a list of factors to weigh and set the amount they consider fair on the facts of the case, which is how the large majority of states are understood to handle spousal support. Two couples with similar finances can end up with meaningfully different orders in Michigan, so treat any calculator result, including ours, as a planning band rather than a prediction.
How is spousal support calculated in Michigan?
On our record there is no formula to apply. MCL 552.23 has been read here in full, and what we hold out of it is MCL 552.23(1), which establishes that on a judgment of divorce or separate maintenance, where what each party was awarded is insufficient for their suitable support, the court may award spousal support, in gross or otherwise, as it considers just and reasonable after considering the ability of either party to pay, the character and situation of the parties and all the other circumstances of the case, and that the section numbers no factors and sets out no calculation - which is what our record describes, without settling it, because that reading covers MCL 552.23, which numbers no factors; the factors come from case law, and the fourteen factors that Michigan Court of Appeals opinions list, quoting Olson v Olson (2003), are read from those opinions rather than from Olson itself. What it says is that a Michigan judge weighs the statutory factors, which in our Michigan record are length of the marriage, standard of living during the marriage, earning capacity of each spouse, financial resources and assets of each spouse, contributions to the marriage, and marital fault, and sets an amount that fits the case. Our estimate models the two factors courts weigh most heavily nearly everywhere, the income gap and the length of the marriage, then widens the range to reflect how much room the court actually has.
How long does alimony last in Michigan?
Duration scales with the length of the marriage more than with anything else. Running the same couple through our Michigan estimate at different marriage lengths, a 10-year marriage produces support of 1.3 to 6.7 years and a 20-year marriage produces 2.7 to 13.3 years. 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 should I expect in Michigan?
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 Michigan 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 $844 to $2,953 a month, with our own estimate at $1,688, running 1.6 to 8 years. Our record shows no statutory formula for Michigan, so outcomes vary significantly between judges and cases. The figure above is our own approximation rather than anything Michigan publishes. Run your own figures in the calculator on this page.
Can alimony be modified in Michigan?
It depends on the kind of award. The Michigan Court of Appeals opinion read here, Pastoriza v Pastoriza (2024, unpublished), says spousal support in gross, a lump sum or a definite sum in installments, "is considered nonmodifiable", while "a periodic spousal-support award is subject to modification under MCL 552.28." MCL 552.28 itself had not been read here as of 2026-10-17, so this answer does not state what a Michigan court requires before it changes a periodic award.
Does fault affect alimony in Michigan?
It can. Michigan's statute, MCL 552.23, read from the copy www.legislature.mi.gov serves, does not mention fault, and the factors come from case law. Michigan Court of Appeals opinions on the court's own site list fourteen, quoting Olson v Olson (2003), and two of them are "the past relations and conduct of the parties" and "a party’s fault in causing the divorce". So fault is one factor a Michigan court may weigh in deciding spousal support, not a bar on an award. The opinions we read are unpublished, and we read them rather than Olson itself.
Is alimony tax deductible in Michigan?
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 Michigan 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 Michigan
- One state's own calculation is implemented, in half. Our record classifies five states as writing a spousal support calculation into their own statute, and the calculation itself has been read for two of them. We run one of those, 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, Maine, New Hampshire and New Jersey's limits are ones a court may go past on a finding (a rebuttable presumption, or a standard such as the interests of justice or exceptional circumstances), so they are shown beside the figure rather than applied to it. Massachusetts, New Hampshire and New Jersey carry second reasons on top of that, set out on their own page beside the figure, and they are the harder of the two: what the rule measures is not what this page collects. Indiana sets its limit flatly for one kind of award among several the statute names, and this page cannot tell which kind a case is, so that limit is shown beside the figure rather than applied to it. Utah has a limit our own page states and nobody here has opened the document behind, so it is 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 6 states, Colorado, Florida, Illinois, New Hampshire, New York and Texas, and each of those pages names the instrument that settled it. In the other 44 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
Michigan courts and statutes
Citations our record carries for Michigan. Being listed here does not mean a figure on this page was read from it.
- Mich. Comp. Laws § 552.519(3)(a)(vi)
- 2025 Michigan Child Support Formula Manual § 3.03
- courts.michigan.gov
Where to read more
Background reading. 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.