Can we use "married filing jointly" if we have taxable income from non-community property?
I am pretty sure that "married filing separately" is only optional, not required. But that's the essence of my question.
Note: I am __not__ asking if there are conditions where "married filing separately" might be "better". This is a question about "must", __not__ "should" or "allowed to".
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The situation is.... We are married and live in a community property state. But I have chosen to keep a large inheritance in a separate account (i.e. non-community property) registered with only my SSN. In fact, my wife does not have POA. Nevertheless, we have always used MFJ, and we want to continue to do so, reporting the taxable income from the separate property on the joint return.