California and Texas are two of the community property states.
community property = enforcing a policy that property acquired during a marriage, and also funds that are commingled during the marriage, are jointly owned
And when we bought the house, we agreed that I should pay only a percentage of the mortgage based on what I earn and what he earns, and that I should own an equivalent percentage of community property; this is written in our prenuptial agreement.†
(source) Amy Tan, The Joy Luck Club, 1989
Technically, the carts are community property, but no one believes that.†
(source) Neal Stephenson, Snow Crash, 1992