FAMILY LAW CALCULATORS

Common-Law Property Split Calculator — United States

Estimate how assets are divided when unmarried cohabiting partners separate under US law — palimony and contribution-based claims.

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Assets in Partner A's name only.
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Assets in Partner B's name only.
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Assets in both names or accumulated together.
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Partner A's total money contributed to the relationship (income, mortgage payments, etc.).
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Partner B's total money contributed to the relationship.

Enter your details to see results

Disclaimer: Cohabitation property rights vary by state. Unmarried couples generally lack automatic marital property protections. This calculator is for general estimation only. Consult a family law attorney.

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Frequently Asked Questions

Do unmarried couples have property rights in the US?
Unmarried cohabiting couples generally do NOT have automatic property rights under state marital property laws (except the handful of states recognizing common-law marriage). Property is divided based on: legal title (who owns it), express or implied contracts between partners, and equitable claims like unjust enrichment. Only 9 states still recognize common-law marriage.
What states recognize common-law marriage?
As of 2025, common-law marriage is recognized in: Alabama, Colorado, Georgia (before 1/1/1997), Idaho, Iowa, Kansas, Montana, New Hampshire (inheritance only), Ohio (before 10/10/1991), Oklahoma, Pennsylvania (before 1/1/2005), Rhode Island, South Carolina, Texas, and Utah. In these states, couples who meet the requirements are treated like married spouses for property division.
What is palimony and can I claim it?
Palimony is support paid by one unmarried partner to another after separation. It originated from the California case Marvin v. Marvin (1976), which recognized that non-marital partners can enforce express or implied agreements for financial support. Most states allow palimony claims based on contract, but few will imply a support obligation without evidence of an agreement. A cohabitation agreement is the best protection.

Related Tools & Guides

AI for Family Law Firms — Win Divorce Clients  ·  Alimony Calculator — United States  ·  Divorce Asset Division Calculator US  ·  Child Expense Split Calculator US  ·  More free legal tools

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