You would file form 8379 for 2019 and 2021. It is for the debt for THOSE years. You would not include it with your return for this year, instead you would just file the form on its own. You would need your tax records for those years to allocate the income and tax debt due to each person properly.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
