If your divorce is not final by the end of the year, you are not required to file as married filing separately. You would probably pay more tax, but you would avoid having to deal with your husband to file your tax return. If you have a child living with you, and your husband does not live with you for the last 6 months of the year, you could file as head of household, which would reduce the amount of tax you have to pay.
In some states you can get a legal separation that is not a divorce, but allows you to file your tax return as if you are not married.
Talk to your divorce lawyer and a tax professional about the possible arrangements for filing your 2025 tax return if you are not divorced by the end of the year. If the lawyer suggests a legal separation, check with a tax professional or a tax lawyer to make sure it will satisfy IRS requirements.
