Kansas Alimony Calculator

Estimate spousal support in Kansas, 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: Kansas cost figures are our own estimates, not independently verified

Kansas divorces typically cost 52% less than the national average of $12,900.

Alimony in Kansas

How Kansas decides it
Judicial discretion
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
60 days (about 2 months)

Modeled estimate, held inside the state's own limits. The arithmetic that produced this figure is ours rather than Kansas's. 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. No Kansas rule is inside that calculation. What Kansas's own law does here is bound the result. We have read K.S.A. 23-2904, and where a limit in it reaches a case like yours it is applied to the figures above, so those figures are held inside the state's own ceiling rather than only inside our model.

Alimony Calculator in Kansas: What You Should Know

Kansas sets maintenance at the court's discretion, considering the length of the marriage, each spouse's earning capacity, the standard of living during the marriage, and the financial resources of both. There is no statewide formula, though some judicial districts use informal guidelines as a starting point for negotiation. Kansas law caps a single maintenance order at 121 months, a little over ten years, although a court can order a renewal before the original term ends. Awards are commonly set for a defined period geared to the recipient's path to self-support.

Key point: Kansas caps a single maintenance order at 121 months (about ten years), though it can be renewed, and some districts use informal guideline figures in negotiation.

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Locked to Kansas on this page.

Your role

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 Kansas awards spousal support

Our Kansas record classifies it as a discretionary state, which means there is no arithmetic in the statute, so the court weighs a list of factors and sets an amount it considers fair on the facts in front of it. Here is what that looks like in practice.

Modeled estimate, held inside the state's own limits

The arithmetic that produced this figure is ours rather than Kansas's. 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. No Kansas rule is inside that calculation. What Kansas's own law does here is bound the result. We have read K.S.A. 23-2904, and where a limit in it reaches a case like yours it is applied to the figures above, so those figures are held inside the state's own ceiling rather than only inside our model.

A discretionary state does not tell the judge what to calculate. It tells the judge what to consider. The statute lists factors, the court weighs them against the evidence each side puts up, and the number that comes out is the number that fits those facts in that courtroom. Nothing in the process converts the factors into an equation.

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 system, it is the system. Judges are given latitude precisely because the legislature decided that support is too fact-dependent to reduce to arithmetic.

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 Kansascourts weigh, in our data's order

These are the 4 factors our Kansas 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.

  1. 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.
  2. 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.
  3. 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.
  4. 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.

Does conduct matter in Kansas?

No. Marital fault does not appear in the Kansas 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 Kansas letting you file on fault grounds as well as no-fault grounds, our own record rather than Kansas'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 Kansas 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 Kansas'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. Because the statute supplies no formula, 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 $400 to $1,200 in Kansas 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.

Kansas spousal support examples

These three examples run through the same Kansas 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 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 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: $280 to $980 a month, typically around $560 ($6,720 a year), running 0.5 to 2.7 years.

Factors the estimate applied in example 1
FactorEffect
Short marriage (under 5 years)Pushes down

Short marriages in Kansas may result in limited rehabilitative alimony. Our record shows no statutory formula for Kansas, so outcomes vary significantly between judges and cases. The figure above is our own approximation rather than anything Kansas publishes.

  • Kansas 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, Kansas 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, typically around $1,688 ($20,256 a year), running 1.6 to 8 years.

Factors the estimate applied in example 2
FactorEffect
Primary caregiver for childrenPushes up

Medium-length marriages with a significant income gap frequently result in temporary alimony in Kansas. Our record shows no statutory formula for Kansas, so outcomes vary significantly between judges and cases. The figure above is our own approximation rather than anything Kansas publishes.

  • Kansas 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, Kansas 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, typically around $5,787 ($69,444 a year), running 3.2 to 10.1 years.

Factors the estimate applied in example 3
FactorEffect
Age or health limitationsPushes up

Long marriages with an income gap often result in extended or permanent alimony in Kansas. Our record shows no statutory formula for Kansas, so outcomes vary significantly between judges and cases. The figure above is our own approximation rather than anything Kansas publishes.

  • Kansas judges have broad discretion in setting alimony. This estimate reflects typical outcomes, but individual results vary significantly based on the specific judge and circumstances.
  • Long marriages (20+ years) often result in indefinite alimony in Kansas.
  • 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, Kansas 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 10.1 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 Kansas law limits

Kansas'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.

  • Duration: 121 months on any one award

    121 months (10.1 years)

    Worked out as a flat 121 months, which is the figure in the statute rather than anything worked out from your marriage or your income.

    Our estimate sits inside this

    Kansas is the one state in this set whose limit has nothing to do with the length of the marriage or the size of either income. It is a flat 121 months, a little over ten years, on any award the court makes. It is not quite a lifetime ceiling: if the original decree reserved the power to hear a motion for reinstatement, and the recipient files before the current period runs out, the court can reinstate payments for a further period. Each of those is bounded at 121 months in the same way. What that means practically is that a long Kansas marriage does not produce a single long order, it produces an order that has to be brought back before the court to continue.

    Read from the statute. K.S.A. 23-2904, served by kslegislature.gov and retrieved 2026-07-29. L. 2011, ch. 26, § 16; July 1, as the section's own history line prints it. Served in the Revisor of Statutes' 2026 edition.

    In any event, the court may not award maintenance for a period of time in excess of 121 months. ... but the reinstatement shall be limited to a period of time not exceeding 121 months. ... no single period of reinstatement ordered by the court may exceed 121 months.

How long spousal support lasts in Kansas

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 Kansas 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.

Estimated Kansas spousal support amount and duration at seven marriage lengths, holding income constant
Marriage lengthBandTypical monthlyEstimated durationLikelihood
2 yearsVery short marriage$6300.3 to 1.3 yearsUnlikely
5 yearsShort marriage$1,0240.7 to 3.3 yearsPossible
10 yearsMid-length marriage$1,3391.3 to 6.7 yearsLikely
15 yearsLong marriage$1,5752 to 10 yearsVery likely
20 yearsLong marriage, common statutory threshold$1,8902.7 to 10.1 yearsVery likely
25 yearsVery long marriage$2,2053.3 to 10.1 yearsVery likely
30 yearsVery long marriage, retirement in view$2,5204 to 10.1 yearsVery 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 10.1 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 Kansas 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 Kansas case is still running

Kansas carries a statutory waiting period of 2 months before a divorce can be finalized, and a contested case here runs 10 months on average 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. You also need 2 months of residency in Kansas before you can file at all. 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 10 months 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.

Kansas's own durational rule has been read. K.S.A. 23-2904 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 Kansas 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 Kansas that window matters more than people expect: a contested case averages 10 months, 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.

Data pending verification. Our Kansas record does not list which of these categories Kansas recognizes by name or what it calls them, so the descriptions above are the general framework rather than a Kansas list. We would rather say that than name four Kansas 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 Kansas 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 Kansas treatment with a CPA or a licensed family law attorney in the state.

What it costs to argue about support in Kansas

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 Kansas figures set against what is actually in dispute.

Attorney rate
$175 to $325/hr
Mediation session
$200
Uncontested case
$1,200 to $3,500
Contested case
$9,000 to $28,000

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 Kansas runs $9,000 to $28,000, which is the equivalent of roughly 5 to 17 months of that support. Ten billable hours on each side, which a single contested motion can consume, costs $1,750 to $3,250 per side at Kansas rates. Two mediation sessions cost $400 shared between you.

The sharper way to read those figures is as a difference rather than a total. An uncontested Kansas divorce runs $1,200 to $3,500 and takes 3 months. Contesting it adds $7,800 to $24,500, or roughly 5 to 15 months of the support in that example, and stretches the case to 10 months. 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 Kansas requiring mediation before a contested hearing, but at $200 a session against a contested case starting at $9,000, it is usually the cheapest serious attempt at a resolution available. That is our own record rather than Kansas's own court rules. Our record carries collaborative divorce as available in all fifty states, so it says nothing specific about Kansas; 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.

Kansas spousal support authority

Data pending verification. We have not yet verified the specific statute that carries Kansas's spousal support rules, so we are not naming one here. Citing a section number we have not checked would be worse than citing none. The starting points below are Kansas's own courts and the institutional sources, and a licensed family law attorney in the state can give you the controlling section.

Where to check this yourself

Alimony in Kansas - Frequently Asked Questions

Does Kansas have an alimony formula?

Not in our records. Kansas is one of the forty-two 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. What has been opened since is K.S.A. 23-2904, and that provision bounds the term rather than setting out a calculation, so reading it did not confirm the classification either way. 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 Kansas, so treat any calculator result, including ours, as a planning band rather than a prediction.

How is spousal support calculated in Kansas?

On our record there is no formula to apply. The part of Kansas's own law that has been opened is K.S.A. 23-2904, and that provision bounds the term rather than setting out a calculation, so the absence of a formula is still our record's claim rather than something we read. What it says is that a Kansas judge weighs the statutory factors, which in our Kansas record are length of the marriage, earning capacity of each spouse, standard of living during the marriage, and financial resources and assets of each spouse, 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 Kansas?

Duration scales with the length of the marriage more than with anything else, and in Kansas it also runs into a ceiling the state sets, at K.S.A. 23-2904. The figures here are held to it: running the same couple through our Kansas 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 10.1 years. Where our own model ran longer than the ceiling, the top of those ranges is the state's figure rather than ours, and where it ran shorter, it is ours. A ceiling is not a forecast either: courts set a term on the facts and are often directed to the shortest reasonable one, so treat these as an upper bound rather than as what an order will say. The limits panel on this page works the ceiling out on your own figures and sets out what the provision does that this estimate does not model. 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 Kansas?

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 Kansas 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, typically around $1,688, running 1.6 to 8 years. Our record shows no statutory formula for Kansas, so outcomes vary significantly between judges and cases. The figure above is our own approximation rather than anything Kansas publishes. Run your own figures in the calculator on this page.

Can alimony be modified in Kansas?

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. Kansas courts typically require the change to be material and not anticipated at the time of the original order.

Does fault affect alimony in Kansas?

No. Kansas 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 Kansas?

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 Kansas 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 Kansas

  • 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

Kansas courts and statutes

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

Barron Hansen

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.