1.6 Community Property Rules
If you live in Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, or Wisconsin, the income and property you and your spouse acquire during the marriage is generally regarded as community property. Community property means that each of you owns half of the community income and community property, even if legal title is held by only one spouse. But note that there are some instances in which community property rules are disregarded for tax purposes; these instances are clearly highlighted in the pertinent sections of this book.
If the community property rules apply for tax purposes and you and your spouse file separate returns instead of filing jointly, then on your separate returns each of you must report half of your combined community income and deductions in addition to your separate income and deductions.
Separate property may still be owned.
Property owned before marriage generally remains separate property; it does not become community property when you marry. Property received during the marriage by one spouse as a gift or an inheritance from a third party is generally separate property. In some states, if the nature of ownership cannot be fixed, the property is presumed to be community property.
In some states, income from separate property may be treated as community property income. In other states, income from separate property remains the separate property of the individual owner.
Divorce or separation.
If you and ...