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Alimony calculator by state

Only a handful of states set alimony with a formula. For those, the calculator applies the official formula step by step, with each citation. For every other state, we show what the statute does say, quoted and linked.

How is alimony calculated?

In most states it isn’t set by a formula: in 21 of the 42 states we verified, the judge weighs factors the statute lists.[22–42] Arizona, Colorado, Illinois, Maine, New Hampshire, New Mexico, New York, Pennsylvania, Vermont and Virginia set a guideline amount by formula in a statute, court rule or court guideline (Maine’s takes effect January 1, 2027).[1–10] 11 more cap the amount or how long alimony lasts.[11–21]

Key facts

Formula states10 · AZ, CO, IL, ME, NH, NM, NY, PA, VT, VA
Calculators on this page8 states whose full official formula we reproduce exactly
Caps on amount or length11 · CA, DE, FL, KS, LA, MA, MN, NJ, ND, TX, UT
Judge weighs listed factors21 states
Not verified yet9 states
Rules last checkedOctober 26, 2026

Counts come from the state rows in the table below, each cited to the state’s statute or court rule (listed under Sources).

Calculators: 8 states with an official formula we can reproduce exactly

  1. Colorado40% of combined income, minus the lower earner’s income, then 80% or 75% of thatAdvisory spousal/partner maintenance guidelines
  2. Illinois33⅓% of payer’s net − 25% of recipient’s, capped at 40% of combinedGuideline maintenance after divorce
  3. MaineIncome difference × 1.5% per year married (up to 30%); takes effect Jan. 1, 2027Presumptive general support
  4. New HampshireLesser of need or 23% of the gross-income difference, for up to half the marriageTerm alimony
  5. New MexicoAdvisory: 30% of payer’s gross − 50% of recipient’s (28%/58% with child support)The advisory alimony guideline worksheet of New Mexico’s Statewide Alimony Guideline Committee
  6. New York30% of payer’s income − 20% of recipient’s (20%/25% with child support), capped at 40% of combinedTemporary and post-divorce maintenance guidelines
  7. VermontA range of the gross-income difference set by years married (up to 24–41%)The maintenance guideline table in 15 V.S.A. § 752(b)(9)
  8. Virginia27% of payer’s gross − 50% of recipient’s (26%/58% with children), while the case is pendingPendente lite (while the case is pending) spousal support

10 states have an alimony formula (Maine’s takes effect January 1, 2027); 11 more cap its amount or length

In the other 21 states we verified, judges weigh factors the statute lists. We calculate the 8 formulas we could read in full and reproduce exactly, and link the official calculator for the other 2.

  • We calculate (8)
  • Official calculator (2)
  • Caps or limits (11)
  • Factors only (21)
  • Not verified yet (9)
DC

Tap a state to see its rule; tap again to open its page.

42 of 51 jurisdictions verified from official sources; 9 not yet (their official text sites block automated reading).

Source: each state’s statute, court rule or court guideline, quoted and linked on its page. Checked October 26, 2026.

Every state

Only 10 states have an alimony formula (Maine’s takes effect January 1, 2027); in 32 the judge sets the amount, within limits in 11

Grouped by how much the law pins down. Each rule links to the official text it comes from. “Not verified yet” means we couldn’t read that state’s official code automatically, not that it has no rule.

Formula: we calculate 8

Formula: we calculate: key rule and official source, by state
StateKey ruleOfficial source
Colorado[1]40% of combined income, minus the lower earner’s income, then 80% or 75% of thatC.R.S. § 14-10-114, as worked on Colorado Judicial Branch form FCF 425
Illinois[2]33⅓% of payer’s net − 25% of recipient’s, capped at 40% of combined750 ILCS 5/504(b-1)
Maine[3]Income difference × 1.5% per year married (up to 30%); takes effect Jan. 1, 202719-A M.R.S. § 951-A
New Hampshire[4]Lesser of need or 23% of the gross-income difference, for up to half the marriageN.H. RSA 458:19-a
New Mexico[5]Advisory: 30% of payer’s gross − 50% of recipient’s (28%/58% with child support)NMSA 1978, § 40-4-7
New York[6]30% of payer’s income − 20% of recipient’s (20%/25% with child support), capped at 40% of combinedN.Y. Dom. Rel. Law § 236(B)(6)
Vermont[7]A range of the gross-income difference set by years married (up to 24–41%)15 V.S.A. § 752
Virginia[8]27% of payer’s gross − 50% of recipient’s (26%/58% with children), while the case is pendingVa. Code § 20-103

Formula: official calculator 2

Formula: official calculator: key rule and official source, by state
StateKey ruleOfficial source
Arizona[9]Supreme Court guideline formula: an amount range and a duration rangeA.R.S. § 25-319
Pennsylvania[10]Statewide support guideline formula (spousal support and support while the case is pending)23 Pa.C.S. § 3701

Caps or time limits 11

Caps or time limits: key rule and official source, by state
StateKey ruleOfficial source
California[11]Under 10 years: half the marriage’s length (starting assumption)Long-term spousal support
Delaware[12]Up to 50% of the marriage’s length (no limit after 20+ years)13 Del. C. § 1512
Florida[13]Durational: up to 50% / 60% / 75% of the marriage’s lengthFla. Stat. § 61.08
Kansas[14]Up to 121 monthsK.S.A. 23-2902
Louisiana[15]Final support: up to one-third of the payor’s net incomeLa. Civ. Code art. 112
Massachusetts[16]Generally no more than need or 30–35% of the gross-income differenceMass. Gen. Laws c. 208, § 53
Minnesota[17]Under 5 years: presumed no maintenanceMinn. Stat. § 518.552
New Jersey[18]Up to the length of the marriage (marriages under 20 years)N.J.S.A. 2A:34-23, as amended by P.L.2014, c.42
North Dakota[19]Up to 50% / 60% / 70% / 80% of the marriage’s length (under 5 / 5–10 / 10–15 / 15–20 years)N.D.C.C. § 14-05-24.1
Texas[20]Lesser of $5,000/mo or 20% of the payer’s average monthly gross incomeTex. Fam. Code ch. 8, §§ 8.051–8.055
Utah[21]No longer than the length of the marriage (unless good cause)Utah Code § 81-4-502
Factors only 21Show 21 states
Factors only: key rule and official source, by state
StateKey ruleOfficial source
Alaska[22]Court weighs 7 listed factorsAS 25.24.160(a)(2)
Arkansas[23]No formula, cap or time limitArkansas Judiciary, Domestic Relations Benchbook (2022), § VII Alimony
Connecticut[24]No formula, cap or time limitConn. Gen. Stat. § 46b-82
Idaho[25]Court weighs 7 listed factorsIdaho Code § 32-705
Iowa[26]Court weighs 10 listed factorsIowa Code § 598.21A
Kentucky[27]Court weighs 6 listed factorsKRS 403.200
Maryland[28]Court weighs 12 listed factorsMd. Code, Fam. Law § 11-106
Michigan[29]No formula, cap or time limitMCL 552.23
Missouri[30]Court weighs 10 listed factorsRSMo § 452.335
Montana[31]Court weighs 6 listed factorsMCA 40-4-203
Nebraska[32]No formula, cap or time limitNeb. Rev. Stat. § 42-365
Nevada[33]Court weighs 11 listed factorsNRS 125.150
North Carolina[34]Court weighs 16 listed factorsN.C. Gen. Stat. § 50-16.3A
Ohio[35]Court weighs 14 listed factorsR.C. 3105.18 as summarized in the Supreme Court of Ohio Domestic Relations Resource Guide
Oregon[36]Court weighs 11 listed factorsORS 107.105(1)(d)
Rhode Island[37]No formula, cap or time limitR.I. Gen. Laws § 15-5-16
South Dakota[38]No formula, cap or time limitSDCL 25-4-41
Washington[39]Court weighs 6 listed factorsRCW 26.09.090
West Virginia[40]Court weighs 20 listed factorsW. Va. Code § 48-6-301
Wisconsin[41]Court weighs 10 listed factorsWis. Stat. § 767.56
Wyoming[42]No formula, cap or time limitWyo. Stat. § 20-2-114(a)
Not verified yet 9Show 9 states
Not verified yet: key rule and official source, by state
StateKey ruleOfficial source
AlabamaOfficial code not readable automatically—
District of ColumbiaOfficial code not readable automatically—
GeorgiaOfficial code not readable automatically—
HawaiiOfficial code not readable automatically—
IndianaOfficial code not readable automatically—
MississippiOfficial code not readable automatically—
OklahomaOfficial code not readable automatically—
South CarolinaOfficial code not readable automatically—
TennesseeOfficial code not readable automatically—

Source: each state’s statute, court rule or court guideline, read on the official site and quoted on its page; checked October 26, 2026. A calculator is built only where we read the whole official formula and reproduce it exactly, tested against the source’s own worked examples where it prints them.

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Questions

Which states have an alimony formula?

Arizona, Colorado, Illinois, Maine, New Hampshire, New Mexico, New York, Pennsylvania, Vermont and Virginia set a guideline amount by formula in a statute, court rule or court guideline (Virginia's covers temporary support while the case is pending). Several are advisory: courts weigh them with other factors. Maine’s takes effect January 1, 2027; until then it has no amount formula.

Which states cap alimony or limit how long it lasts?

California, Delaware, Florida, Kansas, Louisiana, Massachusetts, Minnesota, New Jersey, North Dakota, Texas and Utah set a numeric cap on the amount or a limit on how long alimony lasts, without a formula for the amount. Each state page quotes the rule.

How is alimony calculated in most states?

In 21 of the 42 states we verified, the statute gives no formula, cap or time limit: the judge weighs listed factors such as the length of the marriage, each spouse's income and earning capacity, and the standard of living. There's nothing to calculate there, so those pages explain the factors instead.

Estimate only — courts decide; confirm with the official guideline. Not legal advice. MediationList is a directory of court-listed mediators, not a law firm, and doesn’t endorse any mediator. See also divorce laws by state and the divorce cost calculator.

Sources

Each state’s statute, court rule or court guideline, read on the official site; one entry per state, with the latest date we checked it.

  1. Colorado: Alimony statute, Eligibility, Formula: C.R.S. § 14-10-114, as worked on Colorado Judicial Branch form FCF 425; Duration: Colorado Judicial Branch, Spousal/Partner Maintenance Advisement (Arapahoe County District Court), per C.R.S. § 14-10-114coloradojudicial.govchecked ↩
  2. Illinois: Alimony statute, Eligibility, Formula, Amount cap, Duration: 750 ILCS 5/504(b-1) (Illinois General Assembly)ilga.govchecked ↩
  3. Maine: Alimony statute, Formula, Eligibility, Duration, Modification: 19-A M.R.S. § 951-A (Maine Legislature); Formula: Public Law 2025, ch. 571, § 8 (Maine Legislature)legislature.maine.govchecked ↩
  4. New Hampshire: Alimony statute, Formula, Duration: N.H. RSA 458:19-a (New Hampshire General Court)gc.nh.govchecked ↩
  5. New Mexico: Alimony statute, Duration, Termination, Modification: NMSA 1978, § 40-4-7 (New Mexico Compilation Commission, NMOneSource); Formula: New Mexico Alimony Guidelines and Commentaries (Revised Sept. 6, 2006), Statewide Alimony Guideline Committeenmonesource.com, nmcourts.govchecked ↩
  6. New York: Alimony statute, Formula, Amount cap, Eligibility, Duration: N.Y. Dom. Rel. Law § 236(B)(6) (New York State Senate, Open Legislation); Eligibility: N.Y. Dom. Rel. Law § 240(1-b)(b)(6) (New York State Senate, Open Legislation)legislation.nysenate.govchecked ↩
  7. Vermont: Alimony statute, Formula, Duration, Eligibility: 15 V.S.A. § 752 (Vermont General Assembly)legislature.vermont.govchecked ↩
  8. Virginia: Alimony statute, Temporary, Eligibility: Va. Code § 20-103 (Virginia Law Library); Temporary: Va. Code § 16.1-278.17:1 (Virginia Law Library)law.lis.virginia.govchecked ↩
  9. Arizona: Alimony statute, Eligibility: A.R.S. § 25-319 (Arizona Legislature); Guideline: Spousal Maintenance Guidelines (Arizona Judicial Branch)azleg.gov, azcourts.govchecked ↩
  10. Pennsylvania: Alimony statute, Factors: 23 Pa.C.S. § 3701 (Pennsylvania General Assembly); Formula: Pa.R.C.P. 1910.16-4(a), as printed in the Domestic Relations Procedural Rules Committee's 2018 notice (Supreme Court of Pennsylvania)palegis.us, pacourts.uschecked ↩
  11. California: Alimony statute, Duration, Formula, Termination: Long-term spousal support (Judicial Branch of California, Self-Help Guide)selfhelp.courts.ca.govchecked ↩
  12. Delaware: Alimony statute, Duration, Eligibility, Termination, Temporary: 13 Del. C. § 1512 (Delaware Code Online)delcode.delaware.govchecked ↩
  13. Florida: Alimony statute, Duration, Amount cap, Eligibility: Fla. Stat. § 61.08 (Florida Legislature, Online Sunshine)leg.state.fl.uschecked ↩
  14. Kansas: Alimony statute, Modification: K.S.A. 23-2902 (Kansas Revisor of Statutes); Duration: K.S.A. 23-2904 (Kansas Revisor of Statutes)kslegislature.govchecked ↩
  15. Louisiana: Alimony statute, Amount cap: La. Civ. Code art. 112 (Louisiana State Legislature); Temporary: La. Civ. Code art. 113; Eligibility: La. Civ. Code art. 111; Modification: La. Civ. Code art. 114; Termination: La. Civ. Code art. 117legis.la.govchecked ↩
  16. Massachusetts: Alimony statute, Amount cap: Mass. Gen. Laws c. 208, § 53 (Massachusetts Legislature); Duration, Termination: Mass. Gen. Laws c. 208, § 49(b)malegislature.govchecked ↩
  17. Minnesota: Alimony statute, Duration, Termination: Minn. Stat. § 518.552 (Minnesota Revisor of Statutes)revisor.mn.govchecked ↩
  18. New Jersey: Alimony statute, Duration, Termination, Modification: N.J.S.A. 2A:34-23, as amended by P.L.2014, c.42 (New Jersey Legislature)pub.njleg.govchecked ↩
  19. North Dakota: Alimony statute, Duration, Eligibility, Termination, Modification: N.D.C.C. § 14-05-24.1 (North Dakota Legislative Branch)ndlegis.govchecked ↩
  20. Texas: Alimony statute, Amount cap, Duration, Eligibility, Termination: Tex. Fam. Code ch. 8, §§ 8.051–8.055 (Texas Legislature, Texas Constitution and Statutes)tcss.legis.texas.govchecked ↩
  21. Utah: Alimony statute, Duration, Temporary, Factors: Utah Code § 81-4-502 (Utah Legislature; effective 3/23/2026)le.utah.govchecked ↩
  22. Alaska: Alimony statute, Factors: AS 25.24.160(a)(2) (Alaska Legislature)akleg.govchecked ↩
  23. Arkansas: Alimony statute, Formula, Termination: Arkansas Judiciary, Domestic Relations Benchbook (2022), § VII Alimony (quoting Ark. Code Ann. § 9-12-312)arcourts.govchecked ↩
  24. Connecticut: Alimony statute, Termination, Modification, Temporary: Conn. Gen. Stat. § 46b-82 (Connecticut General Assembly)cga.ct.govchecked ↩
  25. Idaho: Alimony statute, Eligibility: Idaho Code § 32-705 (Idaho Legislature)legislature.idaho.govchecked ↩
  26. Iowa: Alimony statute: Iowa Code § 598.21A (Iowa Legislature)legis.iowa.govchecked ↩
  27. Kentucky: Alimony statute, Eligibility: KRS 403.200 (Kentucky General Assembly)legislature.ky.govchecked ↩
  28. Maryland: Alimony statute, Duration: Md. Code, Fam. Law § 11-106 (Maryland General Assembly)mgaleg.maryland.govchecked ↩
  29. Michigan: Alimony statute: MCL 552.23 (Michigan Legislature)legislature.mi.govchecked ↩
  30. Missouri: Alimony statute, Eligibility, Modification: RSMo § 452.335 (Missouri Revisor of Statutes); Termination: RSMo § 452.370.3revisor.mo.govchecked ↩
  31. Montana: Alimony statute, Eligibility: MCA 40-4-203 (Montana Legislature)mca.legmt.govchecked ↩
  32. Nebraska: Alimony statute, Termination, Modification: Neb. Rev. Stat. § 42-365 (Nebraska Legislature)nebraskalegislature.govchecked ↩
  33. Nevada: Alimony statute, Termination, Modification: NRS 125.150 (Nevada Legislature)leg.state.nv.uschecked ↩
  34. North Carolina: Alimony statute, Eligibility, Duration: N.C. Gen. Stat. § 50-16.3A (North Carolina General Assembly); Temporary: N.C. Gen. Stat. § 50-16.2A(c); Termination, Modification: N.C. Gen. Stat. § 50-16.9(b)ncleg.govchecked ↩
  35. Ohio: Alimony statute, Formula, Termination, Temporary: R.C. 3105.18 as summarized in the Supreme Court of Ohio Domestic Relations Resource Guide (official statute host codes.ohio.gov not fetched — robots.txt disallows all)supremecourt.ohio.govchecked ↩
  36. Oregon: Alimony statute, Factors, Termination: ORS 107.105(1)(d) (Oregon State Legislature)oregonlegislature.govchecked ↩
  37. Rhode Island: Alimony statute, Duration, Termination, Modification: R.I. Gen. Laws § 15-5-16 (Rhode Island General Assembly)webserver.rilegislature.govchecked ↩
  38. South Dakota: Alimony statute, Modification: SDCL 25-4-41 (South Dakota Legislature)sdlegislature.govchecked ↩
  39. Washington: Alimony statute: RCW 26.09.090 (Washington State Legislature)app.leg.wa.govchecked ↩
  40. West Virginia: Alimony statute: W. Va. Code § 48-6-301 (West Virginia Legislature); Factors, Eligibility: W. Va. Code § 48-8-101(b)code.wvlegislature.govchecked ↩
  41. Wisconsin: Alimony statute, Termination: Wis. Stat. § 767.56 (Wisconsin Legislature)docs.legis.wisconsin.govchecked ↩
  42. Wyoming: Alimony statute, Temporary, Modification: Wyo. Stat. § 20-2-114(a) (Wyoming Legislature, Title 20 PDF)wyoleg.govchecked ↩

Cite this page

Page updated
Data version
2026.10.28

MediationList. (2026, October 28). Alimony calculator by state. Retrieved October 29, 2026, from https://mediationlist.com/alimony-calculator/

APA 7th ed. A retrieval date is included only for pages whose content changes, such as maps, data and tools.