When a marriage ends, one of the most pressing—and often contentious—questions is whether one spouse will continue to support the other financially. Alimony, also known as spousal support or maintenance, is designed to address the economic disparities that can arise when a marriage dissolves . But it's not automatic, and the rules vary dramatically depending on where you live and when you divorce .
In 2026, several significant changes are reshaping the alimony landscape. California has aligned its tax treatment of spousal support with federal law, eliminating both deductions and taxability . Florida continues its post-reform era with permanent alimony largely abolished . Illinois courts apply precise formulas based on income and marriage length . And states like Virginia have codified detailed rules regarding retirement, cohabitation, and modification . This comprehensive guide explains who pays, how much, and for how long under current law.
Federal Definition (5 CFR § 581.102): "Alimony means periodic payments of funds for the support and maintenance of the spouse (or former spouse) of the individual, and (subject to and in accordance with State law) includes separate maintenance, alimony pendente lite, maintenance, and spousal support, and includes attorney's fees, interest, and court costs when and to the extent that the same are expressly made recoverable as such pursuant to a decree, order, or judgment issued in accordance with applicable State law" .
How Alimony Is Calculated: State-by-State Formulas
Illinois Formula
Maintenance Calculation: 33.3% of higher earner's net income minus 25% of lower earner's net income .
Cap: Recipient cannot receive more than 40% of combined net income .
Income threshold: Formula applies when combined gross income under $500,000 (no existing support orders) .
Massachusetts Guidelines
Amount: Generally should not exceed recipient's need or 30-35% of the difference between parties' gross incomes at time of order .
Income exclusions: Capital gains, dividend/interest income from assets divided in divorce, and income already considered for child support .
Deviations allowed with written findings for factors like advanced age, chronic illness, tax considerations, health insurance costs, etc. .
California (Temporary)
Temporary support formula: 40% of higher earner's net income minus 50% of lower earner's net income .
Note: Percentages vary by county. Final spousal support considers statutory factors: marriage duration, earning potential, health, marital lifestyle .
Major 2026 Tax Change: California SB 711
Effective January 1, 2026, California conforms to federal tax treatment of spousal support .
Existing agreements finalized before January 1, 2026, continue under old tax rules unless parties mutually agree to adopt the new system .
This change simplifies tax preparation but affects negotiation dynamics—calculated spousal support amounts may decrease to account for the payer's higher after-tax cost .
Florida: Permanent Alimony Largely Abolished
Florida's alimony reforms continue to affect 2026 cases :
- Permanent alimony is no longer awarded in most cases .
- Courts focus on supporting the receiving spouse's financial transition rather than providing indefinite payments .
- More straightforward guidelines based on marriage length and each party's financial situation .
Economic factors like Florida's minimum wage increase to $15/hour (by 2026) may affect ability to pay and appropriate support levels .
How Long Does Alimony Last? Illinois Example
Illinois calculates duration based on marriage length—from the wedding date until the divorce petition is filed .
Factors Courts Consider (Massachusetts)
When Does Alimony End? Virginia Law
Under Virginia Code § 20-109, alimony terminates automatically upon :
Remarriage
Recipient must notify payor immediately
Death
Either party
Cohabitation
Habitual cohabitation in marriage-like relationship for 1+ year
Retirement as material change: Payor's attainment of full retirement age (Social Security normal retirement age) shall be considered a material change in circumstances . Courts consider factors including whether retirement was contemplated when support was awarded, mandatory vs voluntary, income change, age/health of parties, duration and amount already paid .
Virginia's 6 Retirement Factors
- ✓ Whether retirement was contemplated by the court and specifically considered when support was awarded
- ✓ Whether retirement is mandatory or voluntary, and terms/conditions related to retirement
- ✓ Whether retirement would result in change in income of either party
- ✓ Age and health of the parties
- ✓ Duration and amount of spousal support already paid
- ✓ Assets or property interest of each party from date of support order to modification hearing
Types of Spousal Support
Temporary
During divorce proceedings only
Fixed-Term
Specific end date based on marriage length
Reviewable
Court revisits at future date to reassess need
Permanent/Indefinite
Typically for marriages 20+ years; ends upon remarriage/cohabitation/death
Lump-Sum
One large payment covering entire obligation (by agreement)
Lump-Sum Alimony
Instead of monthly payments, parties may agree to a single lump-sum payment that covers the entire obligation upfront. This can also take the form of a larger percentage of property in lieu of ongoing support .
Modifying Alimony: When Circumstances Change
Alimony orders can be modified upon a material change in circumstances . Key considerations:
- Job loss: File modification petition immediately—payments don't pause automatically. Courts may reduce or suspend if laid off, but voluntary underemployment may not qualify .
- Incarceration: Illinois now requires payments to continue accruing as arrears (Public Act 103-967, effective Jan 1, 2025) .
- Retirement: Virginia and other states treat full retirement age as a material change .
- Cohabitation: Virginia requires termination after 1+ year of marriage-like cohabitation absent unconscionability .
In Illinois, if you quit voluntarily or were fired for cause, it's harder to convince a judge to lower payments—they'll base obligation on earning capacity, not actual income .
Tax Treatment: Post-2019 Orders
For divorces finalized after December 31, 2018 (and now in California post-2026):
- Payer: No federal (and now CA state) tax deduction
- Recipient: No taxable income
Orders before 2019 still follow old rules (deductible by payer, taxable to recipient). Mississippi still counts alimony as unearned income to recipient for state purposes .
Key Takeaways: Alimony in 2026
- Alimony is not automatic—requires financial need and ability to pay .
- State formulas vary dramatically—Illinois uses 33.3%/25% formula; Massachusetts uses 30-35% of income difference; California temporary uses 40%/50% .
- Duration tied to marriage length—20+ years may yield indefinite support in some states .
- Permanent alimony is disappearing—Florida largely abolished it .
- Tax treatment changed significantly—California now conforms to federal rules; post-2019 orders are tax-neutral .
- Alimony ends upon remarriage, death, or cohabitation (with state-specific rules) .
- Retirement is now explicitly recognized as a material change in states like Virginia .