Quick answer: Florida law caps durational alimony at the lesser of your spouse’s demonstrated need or 35% of the difference between your net incomes, and for a 25 year marriage the term can run up to 18.75 years. But here is what the statute will not tell you: those are ceilings, not answers. Between zero and the cap sits a negotiation, and the spouse who walks in with better prepared numbers usually walks out with the better result.
Fifteen years ago, I was the one sitting on the other side of the desk. In my own divorce, my attorney looked at me and asked a question I’ve never forgotten: “How much do you want to pay, and for how long?”
That was it. That was the process. Florida’s statute at the time had no formula, no cap, no ceiling, permanent alimony was still on the books, and the answer to my attorney’s question was simply whatever got negotiated. I remember thinking: how could I possibly know? I had no framework for answering the two most expensive questions of my life.
The law has changed since then, fundamentally, on July 1, 2023, when Senate Bill 1416 took effect. It eliminated permanent alimony entirely, created hard caps on both amount and duration, and applies to cases filed or pending on or after that date. Anything you read that was written before mid 2023, and plenty written after, describes a law that no longer exists.
But here’s what hasn’t changed in fifteen years: inside those new caps, my attorney’s question is still the question. How much, and for how long, is still decided at a negotiating table. The difference is that today, you can walk in with an answer. Most of the people who sit across from me in my office, husbands and wives alike, come in asking exactly those two questions, so let me give you the two things that actually matter under the current law.
There Is a Cap
Florida’s reformed alimony statute, Fla. Stat. §61.08, as rewritten by SB 1416 effective July 1, 2023, puts a hard ceiling on durational alimony. The amount cannot exceed the lesser of:
- Your spouse’s reasonable need, as established by their financial affidavit, or
- 35% of the difference between your net incomes, net, after taxes, not gross.
To make that concrete with one example: a payer earning $300,000 with a spouse earning $60,000 has a net income difference of roughly $165,000 under 2026 tax rules, which puts the 35% ceiling near $4,800 a month. Your number will differ, but whatever it is, it’s a ceiling. And at higher incomes, the need figure on your spouse’s affidavit often comes in below the 35% calculation, which means need, not the formula, sets the limit.
The term is capped too: durational alimony in a marriage of 20 or more years cannot exceed 75% of the length of the marriage. Twenty five years married means 18.75 years, maximum. One detail worth knowing: the statute measures the length of a marriage from the wedding date to the date the dissolution action is filed, not to the date the divorce becomes final.
There’s a second guardrail almost nobody mentions: under §61.08(9), an alimony award may not leave the payor with significantly less net income than the recipient, absent written findings of exceptional circumstances. The statute doesn’t just cap the award, it protects the payer’s side of the ledger too.
That word, maximum, is the whole story. Nothing in the statute says you’ll pay the cap, and just as important, nothing says your spouse will receive it. The cap is where the number can’t go above; it says nothing about where the number lands. Which brings us to the part nobody’s website tells you.
Everything Below the Cap Is a Negotiation
The statute doesn’t produce a number. It produces a range, from what your spouse can genuinely justify as need, up to a ceiling, over a term that can be shorter than the maximum. Where your obligation actually lands inside that range gets decided in mediation and settlement conferences, and it turns on questions the statute doesn’t answer:
- What does your spouse’s claimed monthly need actually hold up to when someone audits the affidavit line by line?
- What is your true net income once taxes, FICA, and allowable deductions are calculated correctly, not estimated off your gross?
- Should income be imputed to a spouse who is voluntarily unemployed or underemployed, and at what figure?
- Is a shorter term at a higher monthly amount better or worse for you than the full term at a lower one?
- What does any given proposal cost you in total, after tax, through retirement?
Two payers with identical incomes and identical marriages routinely walk away with very different obligations. The difference is almost never the law. It’s the quality of the financial preparation behind each side of the table. And understand that the other side knows this too, if your spouse’s advisors are treating the 35% ceiling as a starting demand rather than a legal limit, an unprepared response can concede tens of thousands of dollars a year that the statute never required.
But My Spouse Is 55, How Many Years Can I Anticipate Paying?
I get this question in almost exactly these words, so I’ll answer it directly: your spouse’s age doesn’t set the clock, the length of the marriage does. A 25 year marriage supports a term of up to 18.75 years, which on paper runs until a 55 year old spouse is nearly 74.
Three facts shape what actually happens inside that ceiling. The court can award less than the maximum, and the term is as negotiable as the amount. The statute permits a payer who reaches normal retirement age, 67 for most people, to petition for modification or termination, though nothing about that is automatic; a judge decides. And extensions beyond the cap exist only in exceptional circumstances, where the recipient’s age and employability are exactly the factors a court weighs, a 55 year old spouse who left the workforce two decades ago is the profile that provision describes.
What to do with any of that is a conversation for you and your attorney. What I do is show you the numbers at every point in that range, full term, modified term, each proposed amount, so no version of the future arrives as a surprise.
How We Prepare You for the Negotiation
This is the work a Certified Divorce Financial Analyst does before you sit down at the table. Your attorney argues the law; we build the numbers the argument stands on.
Your financial affidavit, built to survive scrutiny. The affidavit is the single most consequential document in an alimony case, it establishes need on one side and ability to pay on the other. We develop yours carefully and completely, because an overstated expense or a forgotten deduction on your side becomes the other side’s leverage.
The other side’s affidavit, checked for discrepancies. We review your spouse’s financial affidavit with a trained eye: whether the numbers are internally consistent, whether the tax filing status and withholding assumptions are correct, whether the claimed figures make sense against the income and the known lifestyle of the marriage, and numerous other checks. An affidavit with discrepancies sets the wrong foundation for the entire negotiation, and identifying those issues early gives your attorney something concrete to work with. That review alone can move the monthly figure meaningfully.
Net income calculated correctly. The 35% cap runs on net income, and I regularly see estimates run on gross, which overstates the ceiling badly. We calculate both parties’ true net figures under current tax law, including the details that get missed: FICA thresholds, deduction treatment, the fact that alimony hasn’t been tax deductible since 2019, so every dollar comes out of after tax money.
Every proposal, modeled to the end. This is the heart of it. Before you respond to any offer, we project it out: monthly amount times term, after tax, against your cash flow, through your retirement date and beyond. Higher payment and shorter term versus lower and longer. Alimony versus a larger share of assets. A lump sum buyout versus 225 monthly checks. The life insurance you’ll likely be required to carry to secure the obligation, priced into the true cost. Side by side, in dollars, so you’re choosing between outcomes instead of reacting to numbers.
The clients who do best in alimony negotiations aren’t the ones who fight hardest. They’re the ones who walk in already knowing what every scenario costs, while the other side is still estimating.
Fifteen years ago, nobody built those numbers for me. When my attorney asked how much and for how long, I answered with a guess. It’s a large part of why I do this work: so that when your attorney asks you that same question, you answer it with an analysis.
Frequently Asked Questions
When did Florida’s alimony law change? July 1, 2023, when SB 1416 took effect. It eliminated permanent alimony, capped durational alimony at the lesser of need or 35% of the net income difference, and set maximum terms tied to the length of the marriage. It applies to divorces filed or pending on or after that date; alimony awarded under the old law generally continues under its original terms.
How long does alimony last in Florida by length of marriage? Durational alimony is not available for marriages under 3 years, but a spouse in a shorter marriage may still receive bridge the gap alimony (up to 2 years) or rehabilitative alimony (up to 5 years). For marriages of 3 years or more, the maximum durational term is a percentage of the length of the marriage:
Length of marriage | Maximum durational alimony term |
Under 3 years | Durational not available; bridge the gap or rehabilitative may apply |
3 to under 10 years | 50% of the marriage length |
10 to 20 years | 60% of the marriage length |
20+ years | 75% of the marriage length (25 years supports up to 18.75 years) |
Bridge the gap alimony is capped at 2 years and rehabilitative alimony at 5 years regardless of marriage length.
Is the 35% cap what I should expect to pay (or receive)? No. The cap is a ceiling, not a formula for the award. The actual amount is set by need, negotiation, and the court’s weighing of statutory factors, it can land anywhere from zero to the cap, and frequently lands well below it.
Is alimony based on gross or net income? Net, though gross is where the calculation starts, which is where the confusion comes from. Under §61.08(8)(c), the 35% ceiling applies to the difference in the parties’ net incomes, calculated per Fla. Stat. §61.30(2) and (3): begin with gross income, then subtract allowable deductions such as income taxes, FICA, health insurance premiums, mandatory retirement contributions, and court ordered support for other children. Temporary spousal support ordered between the parties during the case is excluded from the calculation. Running the 35% against gross income, one of the most common do it yourself mistakes, materially inflates the ceiling.
Is alimony tax deductible? No. For agreements executed after 2018, alimony is not deductible to the payer and not taxable to the recipient, and Florida has no state income tax either way.
Does alimony end when the payer retires? Not automatically. The statute allows a payer at normal retirement age to petition for modification or termination; whether the obligation changes is a judge’s decision. A sound projection shows your obligation both with and without that change.
Does it matter which spouse is the higher earner? No. The statute is entirely gender-neutral; either spouse can pay or receive alimony, and in my practice both happen regularly. Everything on this page applies the same way regardless of who out earns whom.
Take the First Step Toward Clarity
Going into an alimony negotiation? Don’t walk in with a guess. We’ll calculate your true net income picture, pressure-test the need figures, and model every proposal through retirement, so you and your attorney negotiate from numbers, not estimates
Contact us today to schedule a consultation. Together, we’ll build a clear strategy that protects your interests and sets you up for financial security post-divorce. Don’t leave your future to chance—let’s get started.
Disclaimer: Figures reflect 2026 federal tax parameters and simplified assumptions; your net income calculation for court purposes will include additional items. This article is for informational purposes only and is not legal or tax advice.
Sources: Fla. Stat. §61.08; Fla. Stat. §61.30(2) and (3) (net income calculation); Fla. Stat. §61.14(1)(c) (retirement based modification); CS/SB 1416 (Fla. 2023), signed June 30, 2023, effective July 1, 2023; IRS Rev. Proc. 2025-32 (2026 tax parameters).