How to file tax return if i can't give information for the SSN & income of my future ex husband?

[ErnieS0]

Are you filing joint? Or are you in a community property state? I ask because you said you are unable to get your future ex- husband's income.

Take the advice of Super Champ @Opus 17. He says leave your spouse's social security number blank. I assumed you will be filing separate. You will not be able to file. That's good, because you might want to attach a statement explaining why you cannot get the Social Security number.

I dont have my wifes social security number and she wont give it to me

If you live in a community property state and need your husband's income for adjustments, @Opus 17 suggests getting a lawyer. "Don't struggle with an uncooperative spouse, that's what attorneys are for," he said.

Living separate, but not yet divorced or legally separated

[Opus 17]

When filing separately, you only need your spouse‘s income to determine your qualifications for the premium tax credit. There may be a workaround to leave it off, or maybe just guess a high enough number that you won’t qualify for the PTC if you already know you don’t qualify. But you won’t be able to e-file without a Social Security number. You will need to file by mail and attach a written statement that gives your spouse‘s name and address, any other identifying information that you have, and a brief explanation of why you don’t have the SSN.