Family Law

Alimony Calculator - California

State guidelines research · April 2026 · Editorial standards

Reviewed by TheLegalCalc Editorial TeamLegal disclaimer

Legal information only. Results are estimates for planning purposes and do not constitute legal advice. Laws vary by state and change over time. Always consult a licensed attorney for your specific situation.

Estimate spousal support payments in California based on income difference and length of marriage. Free California alimony calculator.

Estimate based on California's guideline model. How we calculate this

How the California Alimony calculator works

California distinguishes temporary spousal support during litigation from long-term support at judgment. Pendente lite orders are common under California Family Code § 3600, where courts may use...

California alimony laws: what you need to know

California spousal support is not a single formula state like New York maintenance or Illinois guideline maintenance. Instead, courts weigh fourteen statutory factors listed in Cal. Fam. Code § 4320, which makes outcomes heavily fact‑ and judge‑dependent—especially compared with Florida’s post‑HB 1409 (2023) categorical alimony types or Texas’s narrow eligibility gates under Tex. Fam. Code § 8.051. Practitioners sometimes discuss an informal negotiation anchor of about one year of support for every three years of marriage, but that is not a statute and should never be mistaken for a rule of law. Marriages of ten years or more are often analyzed as long‑term marriages where duration arguments can be more open‑ended than shorter marriages—still not “automatic lifetime support,” but materially different from short‑marriage bargaining bands. Fam. Code § 4323 can make cohabitation a live issue because a supported spouse’s new partner economics can affect modification and termination arguments. Because California does not give you a clean “plug two incomes, get one number” public formula for permanent support the way New York’s post‑2016 maintenance formula does, treat any calculator output as a conversation starter, not a prediction of what a particular judge will do after weighing § 4320’s full list.

Frequently asked questions

No. Long-term spousal support is decided under California Family Code § 4320’s factor test rather than a single mandatory statewide equation. Temporary support during the case may be informed by software estimates under California Family Code § 3600 practice, but final orders require individualized findings. The calculator approximates likely ranges based on financial patterns similar to those courts compare, not a statutory percentage. Always verify outcomes against current county practice and your disclosures.

Modification generally falls under California Family Code § 3651, which requires a material change of circumstances that was not contemplated when the original order was made. California Family Code § 3653 often limits retroactive relief to the filing date, so prompt filing matters. Retirement, long unemployment, disability, or large compensation swings are common changed-circumstance themes. If the original order is nonmodifiable by agreement, modification may be barred regardless of hardship—read your judgment carefully.

California Family Code § 4336 defines a marriage of long duration as ten years or more from date of marriage to date of separation, absent circumstances rebutting that finding. For long marriages, the court commonly retains jurisdiction to extend support later unless it clearly terminates jurisdiction in the judgment or the parties agree otherwise. That retention affects settlement value and insurance planning. Shorter marriages often see finite terms, but any duration estimate is judge-specific.

California Family Code § 4337 states that unless the parties agree otherwise in writing, spousal support terminates upon the death of either party or the remarriage of the supported party. Cohabitation does not automatically terminate support, but California Family Code § 4323 establishes a rebuttable presumption affecting need. Orders may also include contractual termination dates, step-downs, or review conditions if drafted clearly enough to be enforceable.

Yes. California Family Code § 4331 authorizes the court to order a nonemployed or underemployed supported spouse to participate in vocational counseling where earning capacity is disputed. The resulting report may inform imputation arguments tied to California Family Code § 4320’s earning capacity factor. Vocational evidence must comply with evidentiary rules; parties should prepare work history, health limitations, and labor market realities.

There is no single rule; courts examine whether bonus income is recurring, whether equity is liquid or subject to forfeiture, and whether support should include a base plus percentage structure. California Family Code § 4320’s focus on marital standard of living and earning capacity drives outcomes. Forensic accountants often prepare multi-year averages and separate one-time liquidity events from ongoing cash flow. Expect heavy discovery in executive divorce cases.

Federal treatment changed for many new judgments after the Tax Cuts and Jobs Act. California Revenue and Taxation Code § 17081 incorporates former Internal Revenue Code § 71 for qualifying pre-2019 instruments, while post-2018 agreements follow TCJA treatment without deduction to the payor and without income inclusion for the recipient. Tax clauses in judgments and Marital Settlement Agreements should explicitly state which regime applies and avoid assumptions copied from outdated forms.

California Family Code § 4323 creates a rebuttable presumption that a supported spouse’s need is reduced if they cohabit with a nonmarital partner. The payor can seek modification under California Family Code § 3651 and present evidence of reduced need, while the supported spouse can rebut with proof that cohabitation did not reduce expenses in a meaningful way. Judges expect concrete bank and lease records rather than speculation about a new partner’s finances.

  • Cal. Fam. Code § 4320 — California spousal support factors
  • Tex. Fam. Code § 8.051 — Texas spousal maintenance
  • N.Y. Dom. Rel. Law § 236-B — New York maintenance framework
  • Fla. Stat. § 61.08 — Florida alimony (including post-2023 amendments such as HB 1409)
  • National Conference of State Legislatures — Alimony and spousal support laws

Citations are for research and verification. Statutes, thresholds, and agency guidance change; confirm the current text with official sources or a licensed attorney in your state.

Official Government & Bar Resources

Legal Disclaimer: The results provided by TheLegalCalc are estimates for informational purposes only and do not constitute legal advice. Laws vary by state and change frequently. Always consult a licensed attorney in your state before making legal decisions.

State-specific legal disclaimer

This California alimony estimate is for educational planning only. It does not apply California Family Code § 4320 factors to your evidence, does not issue temporary orders under California Family Code § 3600, and cannot predict judicial discretion, county department practices, or tax treatment under California Revenue and Taxation Code § 17081 and conforming federal rules. Spousal support outcomes depend on written findings, credibility, and procedural history. Consult a California family lawyer before filing, settling, or changing support payments.

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