A legal regime in 9 US states where assets acquired during marriage are owned equally by both spouses. For business owners, this means your spouse may have a 50% claim to equity you earn during the marriage — even if they have no involvement in the business.
community property
noun — A marital property regime, rooted in Spanish and French civil law traditions, under which most assets acquired by either spouse during the marriage are presumed to be jointly owned in equal shares, regardless of which spouse earned, purchased, or holds title to the property. Contrasts with equitable distribution, used by the majority of US states, where marital property is divided fairly but not necessarily equally.
Why it matters for business owners
If you start a business or earn equity during your marriage in a community property state, that business interest may be community property — owned 50/50 by you and your spouse. In a divorce, this can force a buyout, a sale, or the introduction of an ex-spouse as a co-owner.
The critical distinction is how each state treats income from a separately owned business. Some states (Texas, Idaho, Louisiana, Wisconsin) treat that income as community property, giving the non-owning spouse a claim. Others (California, Arizona, Nevada, New Mexico, Washington) keep business income separate, limiting the spouse's claim to the business interest itself rather than its ongoing earnings.
This matters for co-founders too. If your business partner gets divorced in a community property state, their spouse could end up with a claim to half of the partner's equity. A well-drafted operating agreement with transfer restrictions and buy-sell provisions can protect the business from this scenario.
Community property states
| State | Type | Business income treatment |
|---|---|---|
| Arizona | Mandatory | Separate |
| California | Mandatory | Separate |
| Idaho | Mandatory | Community |
| Louisiana | Mandatory | Community |
| Nevada | Mandatory | Separate |
| New Mexico | Mandatory | Separate |
| Texas | Mandatory | Community |
| Washington | Mandatory | Separate |
| Wisconsin | Mandatory | Community |
| Alaska | Opt-in | Varies |
| Florida | Opt-in | Varies |
| Kentucky | Opt-in | Varies |
| South Dakota | Opt-in | Varies |
| Tennessee | Opt-in | Varies |
See each state's specific rules in our partnership laws by state directory.
Frequently asked questions
What is community property?
Community property is a legal system where most assets acquired by either spouse during a marriage are jointly owned, regardless of who earned them. In a divorce, community property is typically split 50/50. This can affect business ownership when a business is started or equity is earned during the marriage.
Which states are community property states?
Nine states are mandatory community property states: Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin. Five additional states (Alaska, Florida, Kentucky, South Dakota, and Tennessee) allow couples to opt in.
How does community property affect business ownership?
If you start a business or earn equity during your marriage in a community property state, your spouse may have a 50% claim. The exact impact depends on the state's rules about business income. A prenuptial or postnuptial agreement can clarify business ownership and protect the business in case of divorce.
What is the difference between community property and equitable distribution?
Community property states default to a 50/50 split. Equitable distribution states (the other 41 states) divide assets "fairly" but not necessarily equally — a judge considers income, marriage length, and contributions. The result can range from 30/70 to 50/50.
Learn more
- Equity for small businesses: partnerships, LLCs, and profit-sharing explained
- Partnership and LLC default rules by state
- Try the partnership fairness calculator
Related terms
Protect your equity with clear records
Equity Matrix tracks contributions and ownership changes over time — documentation that matters in community property situations.
Get Started Free