The decision to keep assets separate may be guided by a number of personal values. Common reasons to maintain separate property include a desire to protect assets from possible loss in divorce, maintain financial independence from a spouse, control the flow of inheritance, or to have general autonomy in relation to assets that belonged to one spouse prior to marriage or were inherited or gifted family assets.
If those considerations are not important to you, the single biggest advantage of “commingling” or turning assets into community property is the double step up in basis for capital gains purposes. Assets are commingled by putting both names on the title to the asset, and/or merging bank or brokerage accounts into joint community property accounts.
These community property assets will receive a full step up in basis at the death of the first spouse. This allows the surviving spouse to liquidate real estate or securities following the death of the spouse without paying capital gains.
Property that is kept separate, but is inherited by the surviving spouse through a trust or pay on death designation will also receive a step up in basis. However, those assets held as the separate property of the surviving spouse maintain their cost basis without any adjustment due to the death of the deceased spouse. Gains tax will be owed if an appreciated asset is sold by the surviving spouse from his or her separate property.
