A minority of states follow community property rules rather than the common-law system used elsewhere. In broad terms, income earned and property acquired during the marriage belongs to both spouses equally regardless of whose name is on the account, while property owned before the marriage or received individually by gift or inheritance is generally separate.
This is not a detail that adjusts a plan at the margins; it changes what you are able to give away. If half of an asset already belongs to your spouse as a matter of law, your will can only dispose of your half. Plans drafted on a common-law assumption can misallocate a substantial portion of a couple's property.
The specifics vary considerably among the states that use the system, and several jurisdictions offer elective or opt-in community property arrangements that add another layer. Separate property can also become mixed with community property over time through commingling, which is a frequent source of dispute. State-specific guidance is not optional here.
Moving matters too. Property characterized as community when acquired does not automatically shed that character because you relocate to a common-law state, and the reverse move raises its own questions. Couples who have lived in more than one state should have the characterization of their assets reviewed rather than assumed.
Frequently asked
- How do I know if I live in a community property state?
- Only a handful of states use the system, and a few others permit couples to opt into it by agreement or trust. Because the list is short but the consequences are large, confirm your own state's rule rather than working from memory or from advice written for somewhere else. If you have lived in more than one state during the marriage, the characterization of individual assets may differ across your holdings.
- Does community property apply to crypto bought during the marriage?
- In a community property state, assets acquired with marital earnings are generally community property regardless of which spouse holds the account or controls the keys. Sole custody of a wallet is not sole ownership. This creates a practical problem distinct from the legal one: a surviving spouse may own half of something they cannot access. Both the characterization and the access route need addressing.
- Can we change how our property is characterized?
- Spouses can often alter the default by written agreement — prenuptial, postnuptial, or a transmutation agreement — and some states allow opting into community property treatment. What you cannot do is change it informally by intention or by how you refer to an asset. Requirements for a valid agreement vary by state and these arrangements carry real tax and creditor consequences, so this is territory for state-specific legal advice.