Massachusetts Alimony Calculator
Estimate spousal support and how long it lasts under M.G.L. c. 208, § 53. Enter your numbers below for an instant estimate with a step-by-step breakdown and statute citations.
Massachusetts Alimony Calculator
This state’s guideline is a percentage of the difference between the spouses’ incomes, capped by the recipient’s need.
Based on M.G.L. c. 208, § 53 · Verified June 1, 2026
Enter income details to see your estimate
Factors Massachusetts Courts Weigh
- •Length of the marriage
- •Age and health of the parties
- •Income, employment, and employability of both parties
- •Economic and non-economic contributions to the marriage
- •Marital lifestyle
- •Ability of each party to maintain the marital lifestyle
- •Lost economic opportunity as a result of the marriage
How Massachusetts Alimony Works
- •Massachusetts's Alimony Reform Act caps general term alimony at the recipient's need or 30–35% of the difference in the spouses' gross incomes, whichever is less.
- •The duration is limited to a percentage of the length of the marriage that increases with longer marriages, up to indefinite alimony for marriages over 20 years.
- •Income already counted when calculating child support is generally excluded from the alimony calculation.
- •Alimony usually terminates on the recipient's remarriage, the death of either party, or the payor reaching full retirement age.
This is an estimate for educational purposes only, not legal advice. Alimony is highly discretionary; a Massachusetts judge can order a different amount or duration. Consult a licensed Massachusetts family-law attorney about your situation. See the official Massachusetts resource.
How Massachusetts Calculates Alimony
Massachusetts addresses spousal support under M.G.L. c. 208, § 53. It sets alimony as a percentage of the difference between the spouses' gross incomes, capped by the recipient's demonstrated need. The calculator shows the guideline range for your numbers.
Unlike child support, alimony is one of the most discretionary areas of family law. Even in states with a guideline equation, the figure is a starting point a judge can adjust after weighing the statutory factors, the length of the marriage, and each spouse's needs and ability to pay. Treat any number here as an informed estimate, not a guaranteed award.
Key Rules in Massachusetts
- Massachusetts's Alimony Reform Act caps general term alimony at the recipient's need or 30–35% of the difference in the spouses' gross incomes, whichever is less.
- The duration is limited to a percentage of the length of the marriage that increases with longer marriages, up to indefinite alimony for marriages over 20 years.
- Income already counted when calculating child support is generally excluded from the alimony calculation.
- Alimony usually terminates on the recipient's remarriage, the death of either party, or the payor reaching full retirement age.
How Long Alimony Lasts in Massachusetts
For marriages of 20 years or less, general term alimony is capped at a percentage of the months married that rises with the length of the marriage. For marriages over 20 years, alimony may be indefinite, generally ending at the payor's full retirement age.
What Counts as Income
Massachusetts's calculation uses each spouse’s gross income — earnings before taxes, including wages, bonuses, commissions, self-employment income, and many recurring sources. Courts can also impute income to a spouse who is voluntarily unemployed or underemployed, meaning support can be based on what a spouse could earn rather than what they currently do. Use your most recent pay stubs and tax return for the most accurate estimate.
Eligibility & Modifying an Order
Not every divorce results in alimony. Massachusetts courts award it when one spouse has a genuine financial need and the other has the ability to pay, judged against the factors above.
Alimony orders can usually be modified when there is a substantial change in circumstances — for example, a significant change in either spouse's income, the recipient's remarriage or cohabitation, retirement, or the payor's loss of employment. The specific rules and any non-modifiable agreements depend on your court order and Massachusetts law.
Frequently Asked Questions
Is this Massachusetts alimony calculator accurate?
It applies the Massachusetts guideline from M.G.L. c. 208, § 53 to the numbers you enter, so it gives a close estimate of a typical guideline award. It is not an official court calculation — a judge can order a different amount after weighing the statutory factors.
Is alimony taxable in Massachusetts?
For divorces finalized after December 31, 2018, alimony is not deductible by the payor and is not taxable income to the recipient under federal law. Most states follow the federal treatment, but check Massachusetts's current rules for state income tax.
Does cheating affect alimony in Massachusetts?
It depends on the state. Some states let courts consider marital misconduct among the alimony factors, while others bar it entirely. Review M.G.L. c. 208, § 53 and speak with a Massachusetts attorney about how fault is treated where you live.
Can alimony be changed later?
Usually yes. Alimony can often be modified when there is a substantial change in circumstances — such as a large change in income, the recipient's remarriage or cohabitation, or the payor's retirement — unless your order or agreement makes it non-modifiable.
Disclaimer
This calculator provides estimates for educational purposes only and is not legal advice. Alimony is highly fact-specific and discretionary; the amount and duration a Massachusetts court actually orders may differ significantly from any estimate here. For advice about your situation, consult a licensed Massachusetts family-law attorney.
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