Marital property rules decide what belongs to each spouse and what you share, and they depend on your state. In community property states, most of what either of you earns or buys during the marriage is shared. Elsewhere, if you divorce, a court divides marital property fairly, which isn’t always 50/50.
Most couples never look this up until they’re buying a home, receiving an inheritance, or bringing old debt into the relationship. Knowing the default rules turns a vague, slightly awkward topic into a concrete conversation about what you’ve already built and how you want to hold it.
This is educational information, not legal or tax advice. Property law varies by state, and the examples below are hypothetical.
What counts as marital property vs. separate property?
The labels change from state to state, but the core split is similar. New York’s courts offer a clear plain-language version of it:
- Separate property: what one spouse owned before the marriage, plus inheritances, personal injury payments, and gifts from someone other than the spouse.
- Marital property: what either spouse bought during the marriage, regardless of whose name is on it. In New York, pension and retirement plans count too, for the portion earned during the marriage.
That “regardless of whose name” part is easy to miss. A car titled to one of you, or a brokerage account opened by one of you, can still be shared property if you paid for it with money earned while married.
Which states are community property states?
According to the IRS’s Publication 555 (revised December 2024), the community property states are Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin. The publication also names Alaska, South Dakota, and Tennessee as states where spouses can opt in to a community property arrangement.
Community property is generally what you acquire during the marriage while living in one of those states, unless it can be identified as separate property. Most other states use equitable distribution: a judge divides marital property as fairly as possible, which may or may not mean equally.
| Approach | What you owned before marriage | What you buy during marriage | Inheritance or gift to one of you | If the marriage ends |
|---|---|---|---|---|
| Community property states | Separate | Generally shared, whoever’s name is on it | Separate | Divided under that state’s community property rules |
| Equitable distribution states (like New York) | Separate | Marital, regardless of title | Separate | A judge divides marital property fairly, not necessarily 50/50 |
Both systems protect what you brought in and what was given to only one of you. The difference shows up at the end: community property states apply their own community property rules, while equitable distribution lets a judge weigh each situation.
How do the same assets play out under each system?
Hypothetical example. Sam and Jordan have been married for six years and have:
- a $15,000 car Sam owned before the wedding;
- a $20,000 inheritance Jordan received from a grandparent during the marriage, kept in a separate account;
- a $40,000 down payment on a home bought during the marriage with both paychecks, titled only in Jordan’s name;
- an $8,000 brokerage account Sam funded from salary during the marriage.
| Item | Community property state | Equitable distribution state |
|---|---|---|
| Sam’s car ($15,000) | Sam’s separate property | Sam’s separate property |
| Jordan’s inheritance ($20,000) | Jordan’s separate property | Jordan’s separate property |
| Home down payment ($40,000) | Community property | Marital property, even with only Jordan on the title |
| Sam’s brokerage account ($8,000) | Community property | Marital property |
In both cases, the shared pot is $48,000 and the car and inheritance stay out of it. What changes is how that $48,000 would be divided if the marriage ended. Keeping the inheritance in its own account matters, too: once separate money gets mixed into joint accounts, it can become much harder to trace.
Whose name goes on the title still matters when you buy together, especially if you aren’t married. The guide to renting or buying a home with your partner covers what to check before you sign.
Do these rules apply if you’re not married?
Mostly, no. Marital property rules are built around spouses. The Uniform Premarital Agreement Act itself notes it doesn’t cover agreements between people who live together without planning to marry.
For unmarried partners, what you own together usually comes down to whose name is on the title or account and what you’ve put in writing. A cohabitation agreement is the closest equivalent to a prenup. Registered domestic partners in California, Nevada, and Washington are a special case, and Publication 555 covers how community property affects their federal tax reporting.
If you share a lease, a car loan, or a home without being married, the comparison of joint, separate, and hybrid accounts helps you decide what to keep shared and what to keep in one name.
Can a prenup or postnup change the default rules?
Yes, within limits your state sets. The Uniform Premarital Agreement Act, written in 1983, requires a prenup to be in writing and signed by both partners, and it takes effect when you marry. By 2012, 26 jurisdictions had adopted it, many with changes, according to the Uniform Premarital and Marital Agreements Act, a newer model law that covers postnuptial agreements as well.
Because enforcement standards differ by state, getting independent legal advice for each of you is the safer route, especially when one partner owns a business, expects an inheritance, or has children from a previous relationship.
How do you talk about it without it feeling like distrust?
A property agreement isn’t a bet against the relationship. Every married couple already has a set of rules by default; the question is whether you know yours and whether they fit the life you’re building.
Before you call an attorney, go through this list together:
- what each of you owns today and whose name it’s in;
- debts, loans, or co-signed accounts from before the relationship;
- a business, family property, or expected inheritance, if any;
- children from a previous relationship;
- how you want to title what you buy together from now on.
Property rules mostly matter at big moments. Day-to-day bills run on your own agreement, and splitting by income can be fairer than 50/50 when your incomes differ: the guide to splitting bills when incomes are different shows how. If an old balance hasn’t come up yet, start with how to talk about hidden debt.
How can you track what’s yours and what’s shared?
The law handles ownership. Your monthly routine needs a record. In dividi, the Joint Account holds shared bills with the percentages you both set, and each bill can follow those percentages or be fully assumed by one person. Anything that belongs to just one of you can live in a Personal Account, and each goal, like a down payment, sits in your personal or shared space.
dividi organizes the record. It doesn’t decide who owns what or replace a prenup or a lawyer’s advice. To start sorting what’s yours, mine, and ours, download dividi.
Frequently asked questions about marital property
What is the difference between community and separate property?
Separate property is what one spouse owned before the marriage, plus inheritances and gifts to that spouse alone. Community property, in the states that use it, is generally what either spouse acquires during the marriage. Other states use the term marital property and let a judge divide it fairly.
Which states are community property states?
Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin, according to IRS Publication 555. The publication also names Alaska, South Dakota, and Tennessee as opt-in states. Most other states use their own marital property rules, usually some form of equitable distribution.
Is an inheritance considered marital property?
Generally, no. An inheritance received by one spouse is usually separate property in both community property and equitable distribution states. Mixing it into joint accounts or using it to pay for shared assets can make it harder to keep separate, so track where that money goes.
Do marital property rules apply to unmarried couples?
Generally, no. For unmarried partners, ownership usually depends on whose name is on titles and accounts and on any written agreement, such as a cohabitation agreement. Registered domestic partners in California, Nevada, and Washington generally follow community property rules in those states.
