I said,
1. Because you are legally separated, for tax purposes your marital status is "single." You cannot legally file a joint return with your soon-to-be ex.
Then Ginny said,
sorry, disagree here ... she's IN PROCESS of a divorce - she has a choice of MFJ, MFS, or possibly HOH.
If Divorce is final before the end of the year, she can file either Single or HOH (depending on whether SHE provided more than 1/2 the support of the child.)
And I respond,
Ginny, Ginny, Ginny. I teach this stuff for a living. From Pub. 501:
"Marital Status
In general, your filing status depends on whether you are
considered unmarried or married. For federal tax purposes, a marriage means only a legal union between a man and a woman as husband and wife.
Unmarried persons. You are considered unmarried for the whole year if, on the last day of your tax year, you are unmarried
or legally separated from your spouse under a divorce or separate maintenance decree.
State law governs whether you are married or legally separated under a divorce or separate maintenance decree.
Divorced persons. If you are divorced under a final decree by the last day of the year, you are considered unmarried for the whole year. [emphasis added]
* * * "
Our poster used the magic words "legally separated." In my experience, this is not a phrase people throw around during a divorce, but denotes an actual court separation. Now, she may be wrong in describing herself as 'legally separated,' but unless she's misdescribing her legal separation status, for tax purposes she is unmarried. Period.