Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Married Couple - Open investment account Separate or Joined?
I don't believe it makes a difference at the federal level -- if you file taxes jointly, gains, losses, and dividends appear on the joint tax account.  If you file separately, I assume the tax implications only appear on the owner's tax return.  Then the benefits might outweigh the costs, but only if you correctly predict market behavior and the behavior of your positions. For example, lets say you lose 30k in the market in one year, and your spouse makes 30k.  If you're filing jointly, the loss washes out the gain, and you have no net taxes on the investment.  If you're filing separately, you can claim 3k in loss (the remaining 27k in loss is banked to future tax years), but your spouse pays taxes on 30k in gain. Where things get more interesting is at the state level.  I live in a "community property state," where it doesn't matter whether you have separate accounts or not.  If I use "community money" to purchase a stock and make a million bucks, that million bucks is shared by the two of us, whether the account is in my name our in our name.  income during the marriage is considered community property.  However property you bring into the marriage is not.  And inheritances are not community property -- until co-mingled. Not sure how it works in other states.  I grew up in what's called an "equitable property state."