Summary: Alimony duration tracks marriage length more than any other factor. Short marriages (under 10 years) often draw support for about half the marriage length. Marriages of 10 to 20 years draw longer terms, sometimes with review dates instead of hard end dates. Marriages over 20 years can draw long-term or indefinite awards where still available. Support also ends early on remarriage of the recipient, and usually on the death of either party. Several states set hard duration caps by marriage-length band.
Courts think in bands. Under 10 years: rehabilitative or bridge support, often about half the marriage length. A 6-year marriage might draw 3 years of support while the recipient retrains. 10 to 20 years: durational support measured in years, sometimes with a review date where the court reassesses need. 20-plus years: the long-marriage band, where long-term or indefinite support enters the picture in states that still allow it.
These are starting points, not statutes, in most states. The judge adjusts for age, health, and self-sufficiency prospects. A 9-year marriage where the recipient is 58 and never worked draws a different duration than a 9-year marriage where the recipient is 35 and employable.
Several states convert the ladder into hard caps. Texas is the clearest: maintenance duration is capped by marriage-length band, generally 5 years for 10-to-20-year marriages, 7 years for 20-to-30, and 10 years beyond 30, with exceptions for disability. Massachusetts uses a similar banded formula.
Caps cut both ways. They protect payers from open-ended exposure, but they can strand recipients whose need outlasts the cap. If your state has caps, the negotiation shifts from 'how long' to 'how much per month within the allowed window,' which changes the math substantially.
A growing practice is the review date: support runs for a term, then the court reassesses rather than automatically ending or continuing. Reviews favor recipients who are making progress but not yet self-sufficient, and they favor payers by forcing the question instead of letting support drift.
If your decree has a review date, calendar it and prepare like a mini-trial: updated income evidence, proof of job-search or training efforts, and a current budget. Reviews are won on documentation.
Three events end alimony almost everywhere: remarriage of the recipient, death of either party (unless the decree secures support with life insurance), and cohabitation in many states, where a recipient's supportive relationship can trigger termination or reduction.
Retirement of the payer is the fourth: most states treat good-faith retirement at a reasonable age as changed circumstances supporting reduction or termination, though some require the retirement to be involuntary or the award to have contemplated it. Life insurance to secure support is the standard workaround when the recipient's need will outlast the payer.
Extensions are harder to win than initial awards. Courts generally require diligent effort toward self-sufficiency plus circumstances beyond the recipient's control, such as illness or a collapsed job market in their field. 'I got used to the payments' is not a basis.
The practical lesson: treat the initial duration negotiation as the main event. File for extension before the term expires, not after; once support terminates, resurrecting it is difficult in most states.
In settlement talks, negotiate duration and amount together, because they trade off. A payer may accept a higher monthly figure for a shorter term; a recipient may accept less per month for a longer runway. Compute the total payout (monthly amount times months) for each proposal; it is the only apples-to-apples comparison.
Also negotiate the termination triggers explicitly: remarriage, cohabitation definitions, retirement age, and whether the award is modifiable. Vague decrees breed the modification litigation that costs both sides later.
Often around 5 years, roughly half the marriage length, though it varies by state and facts. Some states set statutory duration caps by marriage-length band.
Almost always yes. Remarriage of the recipient terminates alimony in nearly every state, and many decrees say so explicitly.
It is difficult. Courts usually require diligent self-sufficiency efforts plus circumstances beyond the recipient's control. File for extension before the term expires.
Good-faith retirement at a reasonable age is generally treated as changed circumstances supporting reduction or termination in most states, though the specifics vary.
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Data current as of October 2026. Sources: state family code duration provisions (TX, MA, IL, FL); American Academy of Matrimonial Lawyers. Legal information only, not legal advice.