Florida alimony calculator: how courts estimate what you'll pay or receive

Last updated 2026-07-09

Does Florida have an official alimony calculator?

No. There's no statutory formula, no court-approved worksheet, and no statewide alimony calculator the way Florida has a child support guideline chart. ^[1] A judge reads the facts and applies 13 discretionary factors listed in Florida Statute 61.08. The math, if you can call it that, happens inside the judge's head, not a spreadsheet.

That's genuinely different from child support, which Florida calculates from a specific guideline table in Statute 61.30. ^[9] Plug in the incomes and you get a number that's presumed correct. Alimony doesn't work that way.

So what do online "Florida alimony calculators" actually do? Most estimate a payment range using one of two informal rules of thumb some Florida family lawyers keep in their heads: a percentage of the income difference (often 20-35%), or a multiplier tied to marriage length. Neither rule appears anywhere in the statutes. They're starting points, not judicial outputs. Use them to feel out the ballpark, then check the number against the statutory factors before you make any financial decision.

If your divorce is uncontested and you and your spouse already agreed on alimony terms, a calculator is mostly beside the point. You write the agreed amount into your settlement agreement, and the court will generally approve it as long as it isn't unconscionable. ^[2]

What did Florida's 2023 alimony reform law actually change?

A lot. Governor Ron DeSantis signed SB 1416 on June 30, 2023, and it took effect the next day, July 1, 2023. ^[3] Four changes matter most for estimating alimony today.

It eliminated permanent alimony. Florida was one of the last states to allow lifetime awards, and that's over. Any divorce filed on or after July 1, 2023 cannot end in a permanent alimony order.

It created presumptive durational caps tied to marriage length. The statute now sorts marriages into three categories and sets a presumptive maximum alimony duration for each:

Marriage length	Category	Presumptive max alimony duration
Under 3 years	Short-term	25% of the marriage length
3 to under 17 years	Moderate-term	50% of the marriage length
17 years or more	Long-term	75% of the marriage length

These are presumptions, not hard ceilings. A court can go longer, but only with written, specific findings, and the burden falls on the party asking for more time. ^[3]

It added a rule that alimony should not leave the paying spouse with less net income than the recipient. That flips older practice, where high earners sometimes paid amounts that essentially equalized the two incomes.

It changed the modification standard around retirement. When the paying spouse reaches "full retirement age" as defined by Social Security, that now counts as a substantial change in circumstances supporting reduction or termination. ^[3]

Finalized before July 1, 2023? Your existing order runs under the old law. The new caps and standards apply going forward only.

What are the 13 factors Florida courts use to calculate alimony?

Florida Statute 61.08(2) lists the factors a court must weigh. The statute directs the court to "consider all relevant factors," then enumerates them: ^[1]

1. The standard of living established during the marriage 2. The duration of the marriage 3. The age and physical and emotional condition of each party 4. The financial resources of each party, including assets distributed in equitable distribution 5. The earning capacities, educational levels, vocational skills, and employability of the parties, and the time needed for either to acquire education or training 6. The contribution of each party to the marriage, including homemaking, childcare, education, and building the other party's career 7. The responsibilities each party will have with minor children 8. The tax treatment and consequences of any alimony award 9. All sources of income available to either party, including income from investments 10. Any other factor necessary to do equity and justice between the parties

The 2023 reform added two explicit considerations: (11) the adultery of either spouse and the circumstances around it, and (12) the comparative financial resources of the parties, including comparative earning ability in the labor market. That last one anchors the new anti-equalization principle. ^[3]

Judges weight these differently depending on the facts. A 25-year marriage where one spouse never worked outside the home lands nothing like a 5-year marriage between two people with matching salaries. Duration and the income gap usually carry the most weight, which is exactly why the informal rule-of-thumb calculators key off them.

How do courts estimate alimony amounts in Florida?

There's no formula, but two numbers run every alimony analysis: the recipient's reasonable need and the payor's ability to pay. A Florida court won't order alimony that exceeds either one. ^[1]

Need is the monthly shortfall between what the recipient requires to keep a reasonable standard of living (close to the marital standard where possible) and what they can earn themselves. Ability to pay is the payor's net income after taxes and their own reasonable expenses.

Here's a stripped-down example. Say Wife nets $3,000 a month and has $5,000 in monthly expenses. Her shortfall is $2,000. Husband nets $9,000 and has $4,500 in expenses. His surplus is $4,500. The alimony amount lands somewhere between $0 and $2,000 a month, weighted by marriage length and the other factors. The 2023 anti-equalization rule means the judge won't hand Wife the full $2,000 if that leaves Husband with less net income than Wife ends up with.

This is why real attorneys build a monthly budget for each client before anyone negotiates. Your financial affidavit (Florida Family Law Form 12.902(b) or (c), depending on income) is the formal version of that budget. ^[4] Courts read these carefully, and gaps between your affidavit and your tax returns will hurt your credibility at a hearing.

Want a rough estimate before you file? Take the income gap, apply 25-35%, then check whether the result respects the anti-equalization rule. For a 10-year marriage with a $4,000 monthly income gap, that points to roughly $1,000-$1,400 a month for up to 5 years (50% of the marriage length). Treat it as a conversation starter, not a prediction.

What types of alimony can Florida courts award?

After July 1, 2023, Florida recognizes three types of alimony, down from five, since permanent and lump-sum were either eliminated or restructured. ^[3]

Bridge-the-gap alimony. Short-term, two years maximum. Helps a spouse move from married life to single life. Can't be modified.

Rehabilitative alimony. Supports a spouse while they get the training or education to become self-supporting. Requires a specific rehabilitative plan filed with the court. Can be modified if the recipient ignores the plan or finishes it early.

Durational alimony. The main post-reform category. Pays a set amount for a defined period that can't run longer than the marriage (subject to the presumptive caps above). This is what most awards look like now for short and moderate marriages.

Lump-sum alimony is no longer a separate statutory category. Parties can still agree to a lump-sum payment in a settlement, but a court can't award it on its own the way it once could.

The type matters for your estimate because durational alimony ends on a date certain, which changes the total cost. A $1,000/month award for 5 years costs the payor $60,000 total (ignoring any COLA). The same monthly amount as permanent alimony (for pre-2023 divorces) could run past $200,000 over a lifetime. Understand that gap before you negotiate anything.

How does marriage length affect alimony in Florida?

Marriage length is the most predictable driver of alimony duration after the 2023 reform, because the presumptive caps are tied directly to it. ^[3] The court starts with the length, assigns a category, and presumes the alimony period shouldn't exceed a fraction of that length.

Length also shapes the amount, indirectly. Judges tend to award more in long marriages: the marital standard of living had time to set in, one spouse had more time to become economically dependent, and the career sacrifice of a stay-at-home spouse is bigger.

The date used is the legal marriage date. Florida counts from the marriage to the date the petition is filed, not the date of final judgment. ^[1] In a long separation with a delayed filing, that can push a marriage into the next category up.

Some attorneys argue for counting cohabitation before marriage when financial dependency started before the ceremony. Florida courts can consider it under the catch-all "other factors" provision, but it isn't standard and it needs evidence.

Near a category boundary, the line matters a lot. A 16.5-year marriage sits in moderate-term with a 50% cap. A 17-year marriage sits in long-term with a 75% cap. If you're close, the filing date itself becomes a strategic choice.

Is alimony taxable in Florida after the 2023 changes?

Federal law controls the tax treatment of alimony, not Florida law, and it changed in 2019 under the Tax Cuts and Jobs Act, not in 2023. ^[5]

For agreements finalized on or after January 1, 2019: alimony is not deductible by the payor and not taxable to the recipient. The old benefit, where the payor deducted and the recipient paid tax at a lower rate, is gone for new agreements.

For agreements finalized on or before December 31, 2018: the old rules still apply, unless the parties modified the agreement and specifically opted in to the new treatment. This is one reason modifying an old alimony order is sometimes not worth it financially, even when circumstances have changed.

Florida has no state income tax, so there's no Florida-specific layer on alimony. ^[6] Federal treatment is all you need to track.

For planning, because alimony is no longer deductible, payors under new agreements pay in after-tax dollars. That raises the real cost of a $2,000/month award: a payor in the 24% federal bracket spends about $2,632 in pre-tax income to make that payment. Build that into your negotiation.

What happens to alimony when circumstances change?

Durational alimony can be modified when there's a substantial change in circumstances. ^[1] What qualifies as substantial is fact-specific, but the usual examples are the payor losing a job involuntarily, the recipient's income jumping, the recipient moving in with a new partner in a supportive relationship, or a major health event on either side.

The 2023 reform added retirement as an explicit qualifying event. Under Florida Statute 61.08(8)(c), a paying spouse who reaches Social Security full retirement age now has a presumptive basis to reduce or terminate alimony. ^[10] Before 2023, courts split on this.

Cohabitation is clearer now too. If the recipient lives with a new partner who contributes to household expenses, the payor can petition to modify or terminate. The court looks at financial interdependence more than the romance.

The right to modify can be waived. Plenty of settlement agreements include a "non-modifiable" clause that locks in both amount and duration. If you're drafting your own, decide on purpose whether you want that. A recipient who wants certainty might want it locked. A payor who expects income swings probably shouldn't waive the right.

To see how alimony fits into the rest of your case, read our overview of alimony and the divorce papers you'll file.

How do Florida courts handle alimony in an uncontested divorce?

When both spouses agree on the terms, including amount, duration, and modification rights, they write them into a Marital Settlement Agreement. The judge reviews it mainly to confirm it isn't unconscionable, not to re-run the arithmetic. ^[2]

This is where self-represented couples get real room to move. You can agree to zero alimony even if one spouse technically qualifies. You can agree to more than a judge would order. You can structure it as a lump sum paid upfront or as monthly checks. As long as both spouses consent and the agreement clears a basic reasonableness review, Florida courts generally approve it.

The agreement has to be notarized and filed. If alimony is in it, be specific: state the monthly amount, the start date, the end date, what triggers termination (death of either party, remarriage of the recipient), and whether modification is allowed. Vague agreements are what fuel expensive post-judgment fights.

For an uncontested divorce where alimony is one of the issues, a document packet that includes the settlement agreement, financial affidavits, and final judgment language saves you drafting from scratch. DivorceClear's $149 packet covers Florida uncontested divorces, including cases with agreed alimony. Confirm the packet reflects the 2023 reform language before you file it.

The Florida Courts self-help center also posts the approved family law forms, including Form 12.902(b) and (c) for financial affidavits, free. ^[4]

What does an attorney charge to handle alimony in Florida?

Contested alimony is expensive. According to The Florida Bar, family law attorneys in the state typically charge $250-$450 an hour, and a contested divorce with an alimony dispute commonly runs $10,000-$30,000 or more per party, depending on complexity and how long it drags on. ^[7] That's not the ceiling. In a high-asset long marriage with vocational experts and forensic accountants, fees can top $100,000 per side.

An uncontested divorce, where both spouses already agreed on terms, costs far less. A flat-fee uncontested divorce with document preparation typically runs $1,500-$3,500 at a Florida family law firm, more in larger markets like Miami or Orlando.

Court filing fees are set by statute. As of 2024, the fee to file a petition for dissolution of marriage in most Florida counties is about $409, with county-specific surcharges in some places. ^[8] Broward, Miami-Dade, and Palm Beach add their own charges. Check your county clerk's fee schedule for the exact number.

If alimony is genuinely disputed and the dollars are large, a divorce attorney is probably worth it. If you and your spouse agree, doing the paperwork yourself or using a document service is a reasonable call. Paying $5,000 to a lawyer to document an agreement you already reached is a waste of money, in my opinion.

For broader cost context, the divorce rate in America piece has useful numbers on how many couples get through this without full representation.

How should I prepare before estimating my Florida alimony situation?

Before you touch any alimony calculator or sit down with a lawyer, pull these numbers together, because they drive every estimate:

1. Gross and net monthly income for both spouses, from every source (wages, self-employment, investments, rental income). 2. Monthly living expenses for each spouse, broken out by category. 3. Length of the marriage, in years and months, from the legal marriage date to today. 4. Each spouse's earning capacity, especially if one is voluntarily underemployed. 5. The value of assets each spouse will receive in equitable distribution, since income from those assets counts. 6. Post-divorce health insurance costs for the lower-earning spouse. 7. Whether either spouse has a retirement plan that shifts the income picture.

The Florida financial affidavit (Form 12.902(b) for incomes under $50,000/year, Form 12.902(c) for incomes over $50,000/year) is built around these categories. ^[4] Fill it out carefully before you negotiate, and you'll have the most accurate basis for an estimate.

Self-employed spouse? Business income gets complicated fast. Courts look at tax returns, profit-and-loss statements, and sometimes bank deposits to find the real number. A forensic accountant costs money but can surface income that never shows on a W-2.

Once you have the numbers, the estimate is direct: figure each spouse's net monthly surplus or deficit, find the gap, and apply the marriage-length caps from the 2023 reform. It won't be court-accurate, but it's a defensible starting point for negotiation. If you want a divorce lawyer to check your estimate before you sign, most Florida family attorneys offer a one-time consultation for $200-$400.

Frequently asked questions

Is there a formula or calculator the Florida courts actually use for alimony?

No. Florida courts apply 13 discretionary factors under Statute 61.08, not a formula. Unlike child support, which uses a statutory guideline table, alimony is entirely fact-specific. Online calculators use informal attorney rules of thumb (typically 20-35% of the income gap) that have no statutory basis. They're useful for rough estimates, not predictions of what a judge will order.

Did Florida eliminate permanent alimony?

Yes. Governor DeSantis signed SB 1416 on June 30, 2023, and it took effect July 1, 2023. Permanent alimony was eliminated for all divorces filed on or after that date. Existing permanent alimony orders from before that date stay in effect under the old law and are not retroactively converted to durational alimony.

How long does alimony last in Florida now?

For divorces filed after July 1, 2023, durational limits are: up to 25% of the marriage length for short-term marriages (under 3 years), up to 50% for moderate-term marriages (3 to under 17 years), and up to 75% for long-term marriages (17 years or more). Courts can exceed these with specific written findings but cannot exceed the actual length of the marriage.

Can a spouse waive alimony in an uncontested Florida divorce?

Yes. In an uncontested divorce, both spouses can waive alimony entirely, regardless of whether one spouse might technically qualify. Courts generally approve voluntary waivers when both parties had the chance to understand the agreement. The waiver should be explicit in the Marital Settlement Agreement and, ideally, note that both parties were advised of their rights.

Does cheating affect alimony in Florida?

The 2023 reform made adultery an explicit statutory factor under Statute 61.08(2). Courts can consider it, but it rarely drives the outcome on its own. Florida doesn't have a punitive alimony framework. Adultery matters more if it affected marital finances (say, a spouse spending marital assets on an affair partner) than as a standalone moral issue.

How is alimony different from child support in Florida?

Child support in Florida is calculated from a statutory guideline table in Statute 61.30, based on both parents' incomes and time-sharing. It's presumptively correct. Alimony has no guideline, no table, and no formula. It's discretionary and based on need, ability to pay, and the 13 statutory factors. For a child support estimate, the Florida child support calculator is a real tool; for alimony, no equivalent exists.

Is alimony taxable income in Florida?

For divorce agreements finalized on or after January 1, 2019 (under the federal Tax Cuts and Jobs Act), alimony is not deductible by the payor and not taxable income to the recipient. Florida has no state income tax, so there's no state-level tax issue. For pre-2019 agreements that haven't been modified, the old deduction and inclusion rules still apply.

Can alimony be modified after the divorce is final in Florida?

Yes, durational alimony can be modified when there's a substantial change in circumstances, such as job loss, an income increase by the recipient, or the recipient's remarriage. The 2023 reform added retirement at full Social Security age as a presumptive qualifying event. Bridge-the-gap alimony cannot be modified. Parties can also contractually waive modification rights in their settlement agreement.

What happens to alimony if the recipient remarries in Florida?

Remarriage of the recipient spouse automatically terminates alimony by statute in Florida unless the settlement agreement says otherwise. The paying spouse does not need to go back to court for an order; termination is automatic on remarriage. Cohabitation without remarriage can be grounds for modification or termination but requires a court petition.

How does equitable distribution of assets affect alimony in Florida?

Assets awarded in equitable distribution are a statutory factor in alimony. If a spouse receives significant income-producing assets (a retirement account, rental property, investments), the income from those assets counts toward their financial resources. A spouse who gets a $500,000 IRA and collects $20,000/year in distributions has a smaller alimony claim than one who gets little in the split.

Can a stay-at-home spouse get alimony in Florida?

Yes, and a long-term stay-at-home spouse is one of the clearest cases for alimony. Courts look at the contribution to the marriage (homemaking, childcare, supporting the other spouse's career), the gap in earning capacity, and the time needed to become self-supporting. Under the 2023 law, the alimony period is now capped at 75% of the marriage length even in long marriages, but amounts can still be substantial.

Where can I get free Florida divorce forms that include alimony terms?

The Florida Courts self-help center at flcourts.gov provides free, approved family law forms, including the Marital Settlement Agreement (Form 12.902(f)(3)) and financial affidavits (Forms 12.902(b) and (c)). These are the actual court-approved forms, not third-party versions. You still have to fill them out correctly, but the forms themselves are free.

How do Florida courts handle alimony when one spouse is self-employed?

Self-employment income gets more scrutiny. Courts look at tax returns, profit-and-loss statements, and bank deposits to find actual income, which may differ from reported income. If income is disputed, a forensic accountant or vocational expert may be needed. For uncontested divorces, both spouses simply disclose their incomes on the financial affidavit and agree on a number.

What is rehabilitative alimony in Florida and how long does it last?

Rehabilitative alimony supports a spouse while they gain the education, training, or work experience needed to become self-supporting. It requires a specific rehabilitative plan filed with the court, and it lasts only as long as the plan. It can be modified or terminated if the recipient doesn't follow the plan or finishes early. It's meant to be transitional, not permanent income replacement.

Sources

1. Florida Legislature, Statute 61.08 (Alimony): Florida courts must consider all relevant factors including the enumerated factors under Statute 61.08(2); no formula exists
2. Florida Courts, Family Law Self-Help Information: Uncontested divorces with a Marital Settlement Agreement are reviewed by the court for unconscionability; agreed terms are generally approved
3. Florida Senate, SB 1416 (2023 Alimony Reform, signed June 30, 2023): SB 1416 eliminated permanent alimony, created presumptive durational caps (25%/50%/75% of marriage length), added anti-equalization provision, and made retirement a qualifying modification event; effective July 1, 2023
4. Florida Courts, Approved Family Law Forms including 12.902(b) and 12.902(c): Florida financial affidavits Form 12.902(b) (under $50,000/yr) and 12.902(c) (over $50,000/yr) are required in dissolution proceedings; available free from Florida Courts
5. IRS, Topic 452 Alimony and Separate Maintenance: For divorce agreements finalized on or after January 1, 2019, alimony is not deductible by the payor and not includable in the recipient's gross income under federal law
6. Florida Department of Revenue, Taxes and Fees: Florida has no state individual income tax, so there is no state tax layer on alimony payments
7. The Florida Bar, Consumer Pamphlet: Divorce in Florida: Florida family law attorneys typically charge $250-$450 per hour; contested divorces with alimony disputes commonly run $10,000-$30,000+ per party
8. Florida Clerks of Court and Comptrollers, filing fee information: Filing fee for a petition for dissolution of marriage in most Florida counties is approximately $409 as of 2024, with county-specific surcharges in some jurisdictions
9. Florida Legislature, Statute 61.30 (Child Support Guidelines): Child support in Florida is calculated from a statutory guideline table; unlike alimony, it uses a presumptively correct formula
10. Florida Legislature, Statute 61.08 (Retirement modification provision, added 2023): Under the 2023 reform, a paying spouse reaching full Social Security retirement age is now a presumptive substantial change in circumstances supporting modification or termination of alimony