Free Alimony & Spousal Support Calculator for All 50 States
See what alimony, spousal support, or maintenance could look like in your state before you talk to an attorney. Enter your incomes, select your state, and get a min–max range in under 60 seconds.
Simple Alimony Calculator
Get a quick estimate of potential alimony/spousal support based on your state's guidelines. Results show ranges to account for judicial discretion.
Select your state to begin
Disclaimer:
This calculator provides educational estimates only. Actual alimony awards vary significantly based on individual circumstances, local judges, and factors not included here. The ranges shown reflect typical judicial discretion. This is not legal advice and should not be relied upon for legal decisions.
For a comprehensive analysis tailored to your situation, register for our full application or consult with a family law attorney in your state.
The Calculator Above Is Just the Start
See what the full alimony report looks like — detailed state-specific analysis, duration projections, and factors a judge actually weighs.
- Duration & amount analysis
- State-specific eligibility factors
- Tax impact breakdown
How Our Spousal Support Calculator Works
Pick Your State and Enter Incomes
Choose your state from the dropdown, set your marriage length, and enter annual income for both spouses. Optional toggles (fault, children, career sacrifice) refine the estimate.
We Apply Your State's Rules
Behind the scenes, the calculator routes your inputs through the statutory framework for your jurisdiction — whether that's a fixed formula, an income-equalization model, or a multi-factor discretionary analysis.
Review Your Min–Max Range
You get a low and high monthly estimate, an expected duration window, and a probability band that reflects how much discretion a judge has in your state.
Understanding How Alimony Is Calculated
Whether your state calls it alimony, spousal support, or spousal maintenance, the underlying question is the same: what does one spouse owe the other after the marriage ends? Our analysis of all 50 state statutes reveals that while no two states calculate it identically, every jurisdiction balances the same tension — bridging a financial gap without creating permanent dependency.
Why the Earnings Gap Drives Everything
Before a judge considers any other factor, they look at one number: how far apart the two incomes sit. A couple where both spouses earn $80,000 is unlikely to see any support obligation regardless of marriage length. But when one spouse earns $200,000 and the other earns $35,000, that $165,000 gap becomes the starting point for every calculation. In states with explicit formulas — Illinois runs 33.33% of the payor's net minus 25% of the recipient's net, capped at 40% of combined net — the math is straightforward. In discretionary states, the gap still anchors the analysis even though the judge has latitude to adjust up or down.
How Marriage Length Shapes the Duration
Think of marriage length as a multiplier on your support obligation, not just a checkbox. A 3-year marriage in most states means support lasting roughly 12–18 months. At 15 years, you're likely looking at 6–10 years of payments. Cross the 20-year threshold and several states — New Jersey, Connecticut, California among them — open the door to indefinite awards. Massachusetts drew a hard line in 2011 with statutory caps: a marriage of 5 years or less gets support for no more than 50% of the marriage length, while 20+ year marriages cap at 80%. These caps also mandate termination at the payor's full retirement age, a provision that caught many long-term payors off guard when it took effect.
The 2019 Tax Shift That Changed Negotiation Math
Before 2019, a spouse in the 32% tax bracket paying $3,000/month in alimony had an effective cost of roughly $2,040 after the deduction. Post-TCJA, that same $3,000 costs exactly $3,000 — a 47% increase in real cost. Meanwhile, recipients lost the tax liability on those payments. This shift made lump-sum property buyouts significantly more attractive for payors: trading a larger share of the house or retirement accounts to eliminate years of non-deductible monthly obligations often pencils out better than the pre-2019 math suggested. If your divorce was finalized before January 1, 2019, the old deductibility rules still apply unless you modify the agreement.
Temporary Orders vs. Final Awards
Courts often issue temporary (pendente lite) support within weeks of filing — before any discovery, depositions, or trial. These interim amounts typically follow a simple local formula. California's Santa Clara County guideline (40% of the higher earner's net minus 50% of the lower earner's net) is one well-known example. The final award, issued months or years later, incorporates the full statutory factor analysis and can land significantly higher or lower than the temporary number. If you received a temporary order, do not assume it predicts the final outcome.
When Child Support Reduces the Alimony Number
In states where both obligations apply, the child support calculation typically runs first, and that payment is deducted from the payor's income before the alimony formula kicks in. New York is the clearest example: its standard alimony formula uses 30% of payor minus 20% of recipient, but when the payor is also paying child support, those percentages drop to 20% and 25% respectively. The net effect is a smaller combined obligation than running each calculation in isolation. Our child support calculator pairs with this tool so you can model both obligations together.
State-by-State Alimony Approaches
Our calculator covers all 50 states because each one takes a meaningfully different approach. Knowing which category your state falls into tells you whether your outcome is mostly math or mostly advocacy.
Formula-Based States (~15 States)
These states plug your numbers into a statutory equation and produce a presumptive amount. Illinois: (33.33% × payor net) − (25% × recipient net), capped at 40% of combined net. Colorado: (40% × higher gross) − (50% × lower gross) when combined income stays under $240,000. New York takes a different approach by running two parallel formulas against a capped payor income of $228,000 (2025) and awarding whichever produces the lesser figure. The advantage of formula states is predictability — you can run the numbers before you ever see a courtroom. The caveat is that judges retain authority to deviate when standard application would be unjust.
Income Equalization States
New Jersey, Vermont, and Oregon share a philosophy that divorce should not crater one spouse's lifestyle while the other lives comfortably. Rather than targeting identical post-divorce incomes, these jurisdictions try to narrow the gap so both parties land within a reasonable range of their married standard of living. New Jersey overhauled its framework in 2014, abolishing the “permanent alimony” label and replacing it with “open durational” support for marriages exceeding 20 years — a distinction that matters because open durational orders carry different modification standards than the old permanent ones.
Rehabilitative-Focused States
Indiana, Tennessee, and Arkansas represent the other end of the spectrum. Their statutes presume that support is transitional — a bridge to self-sufficiency, not a permanent income stream. Indiana caps most maintenance awards at 3 years, making it one of the tightest windows in the country. A recipient in these states needs to demonstrate a concrete plan (pursuing a degree, completing a certification, rebuilding a client base) to justify even that limited duration. Even a 25-year marriage in Indiana may yield only rehabilitative support if the recipient has marketable skills.
Broad Discretion States
Ohio, Michigan, Wisconsin, Minnesota, and Washington hand judges a checklist of statutory factors (income, duration, age, contributions, earning capacity) and say “weigh these as you see fit.” The result is wide variation: two nearly identical cases in neighboring Wisconsin counties can produce materially different awards depending on the judge's interpretation. Wisconsin's informal 50%-of-the-gap guideline circulates among practitioners but has no statutory backing. If your state falls in this category, local attorney insight on your specific judge matters more than any formula.
Fault-Consideration States
About a dozen states still allow marital misconduct to influence alimony outcomes, though the impact varies dramatically. North Carolina imposes a hard bar: if the dependent spouse committed adultery, support is off the table entirely — no exceptions. Virginia takes a softer stance, permitting denial for adultery unless that would produce a “manifest injustice” (typically invoked when the dependent spouse is elderly or disabled). Georgia bars support when the requesting spouse's adultery or desertion caused the divorce. Our calculator includes a fault toggle so you can see how this factor shifts your estimate.
Factors That Shift Your Estimate Up or Down
Our calculator captures the primary variables, but courtrooms weigh additional context that can swing an award by 20–40% in either direction. Here are the factors judges cite most often when departing from guideline amounts.
Imputed vs. Actual Earnings
A W-2 showing $45,000 doesn't end the analysis. If a spouse holds an MBA but works part-time by choice, a judge may impute income at the full-time rate for that credential. Vocational evaluators are routinely hired to establish earning capacity — their reports carry significant weight, especially when one party voluntarily reduced hours during or after the marriage.
Lifestyle Established During Marriage
Judges use the marital lifestyle as a ceiling, not a guarantee. A couple that routinely spent $15,000/month sets a different benchmark than one living on $5,000/month — even if the income gap is identical. Documenting recurring expenses (mortgage, travel, children's activities) during the marriage creates the evidentiary basis courts need to calibrate support.
Workforce Gaps and Retraining Needs
A 10-year gap on a resume is not the same as a 2-year gap. States like New Jersey and Massachusetts explicitly direct judges to evaluate the time and cost needed for the dependent spouse to become employable at a level appropriate to the marital standard. Some states separately award “reimbursement alimony” when one spouse funded the other's professional degree.
Age, Health, and Employability
A 58-year-old with chronic health issues faces a fundamentally different job market than a 38-year-old in good health. Courts routinely extend duration or increase amounts when the recipient's age and medical situation make full self-sufficiency unrealistic. Medical records and physician statements become critical evidence in these cases.
Economic Misconduct and Fault
Even in no-fault divorce states, financial misconduct — transferring assets to relatives, running up debt on purpose, hiding cryptocurrency wallets — can trigger judicial adjustments to the alimony award. In fault-consideration states, the impact is more direct: adultery, abandonment, or abuse can increase or eliminate support entirely depending on the jurisdiction. Toggle the fault factor in our calculator to see how your state handles it.
Planning tip: Documenting these factors with evidence — pay stubs, tax returns, medical records, expense logs — transforms them from arguments into data points a judge can act on. Our full application walks you through building that documentation.
Build my financial pictureAlimony vs. Property Division: Where the Real Money Is
Most people fixate on the monthly alimony number, but the property split often determines more of your post-divorce financial life. Understanding the interplay between these two components opens up negotiation strategies that a calculator alone cannot surface.
The Buyout Option: Trading Monthly Payments for Assets
Instead of writing checks for 7 years, some payors offer a larger share of the retirement account, the full equity in the home, or a lump-sum cash payment to close out the support obligation entirely. Since the 2019 tax change eliminated the payor deduction, this math has tilted further toward buyouts. A payor at $150,000/year saves roughly $18,000 annually in non-deductible payments by converting a $2,500/month obligation into a $125,000 asset transfer — and the recipient gets immediate liquidity instead of years of enforcement risk.
When the Asset Split Outweighs Years of Support
Consider two scenarios: Spouse A receives $2,000/month for 6 years ($144,000 total, spread over 72 months with modification risk and enforcement hassle). Spouse B receives a $130,000 share of a 401(k) today, rolled into an IRA with no immediate tax hit via a QDRO. Adjusted for the time value of money and the certainty premium, Spouse B often comes out ahead. The comparison flips when the marriage is long and the income gap is extreme — a $5,000/month indefinite award can exceed any reasonable property offset.
Cross-Trading in Mediation
The most efficient settlements emerge when couples treat alimony and property as a single negotiation rather than two separate fights. Accepting $500 less per month in support might secure the family home outright — avoiding realtor commissions, capital gains exposure, and the disruption of selling. Conversely, conceding a retirement account you won't touch for 20 years might be worth a higher monthly number that helps you cover rent today. Our divorce cost calculator helps you model these tradeoffs side by side.
Frequently Asked Questions
How close will this calculator get to my actual award?
In formula states (Illinois, Colorado, New York), our estimates track closely with court outcomes when both incomes are reported accurately. In discretionary states, treat the range as a negotiation corridor — your actual award will land somewhere inside it depending on factors like career sacrifices, health, and the specific judge assigned to your case. This tool is built for planning and preparation, not for replacing a legal consultation.
What moves the number most — income, duration, or state?
All three matter, but the income gap between spouses is the dominant variable in every jurisdiction we analyzed. Marriage duration primarily controls how long payments last rather than the monthly amount. State selection determines whether you are working with a rigid formula or a judge's interpretation of statutory factors — which is why the same couple can see meaningfully different results depending on where they file.
Which states produce the most predictable outcomes?
Illinois, Colorado, New York, and Kansas all publish specific formulas that produce a presumptive number. California uses a formula for temporary support (the Santa Clara guideline) but switches to multi-factor analysis for permanent orders. States like Ohio, Michigan, and Wisconsin give judges the widest latitude, making attorney guidance on local judicial tendencies especially valuable.
Will I pay alimony forever?
Rarely. Even “indefinite” or “open durational” awards can be modified upon retirement, the recipient's remarriage, or a substantial change in either party's finances. For marriages under 20 years, most states tie the support period to a fraction of the marriage length — typically 30–70% depending on the jurisdiction. Massachusetts mandates termination at the payor's full Social Security retirement age regardless of marriage length.
What triggers a modification after the divorce is final?
The legal standard in most states is a “substantial and continuing change in circumstances.” Common triggers include involuntary job loss, disability, the payor's retirement, the recipient's cohabitation with a new partner, or a significant salary change on either side. Voluntary underemployment generally does not qualify — a judge can impute your prior earning level if you quit your job to reduce payments.
Do I still get a tax break for paying alimony?
Not if your divorce was finalized on or after January 1, 2019. The TCJA eliminated the payor deduction and the recipient's corresponding income inclusion for all post-2018 agreements. Pre-2019 divorces retain the old treatment unless the parties specifically opt into the new rules through a modification. This single tax change increased the effective cost of alimony by 25–40% for most payors, depending on their marginal bracket.
Alimony, spousal support, maintenance — is there a real difference?
Legally, no. The three terms describe the same obligation: post-divorce financial payments from one former spouse to the other. “Alimony” dominates in eastern states and general usage. California and several western states prefer “spousal support.” Texas, New York, and a handful of others use “spousal maintenance.” Our calculator treats them identically because the underlying statutes are functionally the same — only the label changes at the state line.
My marriage was under 5 years — am I out of luck?
Not necessarily, though your options narrow. Texas sets the strictest bar: generally no maintenance unless the marriage lasted 10+ years (with exceptions for family violence or disability). Most other states have no minimum duration but default to short-term rehabilitative support for brief marriages. If you gave up a career, relocated, or made significant financial sacrifices during even a 3-year marriage, courts in many jurisdictions will still consider an award — it will just be limited in both amount and duration.
A Range Is a Starting Point. Get the Full Picture.
This calculator covers income and duration. Our full report factors in assets, debts, career sacrifice, health, and 10+ additional variables — so you walk into mediation with numbers a judge would recognize.
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