Help CenterFiling status. Your filing status is based on your marital status as of December 31. If you are divorced under a final decree by the last day of the year, you are considered unmarried for the whole year and you cannot choose Married Filing Jointly as your filing status. If you are still married at the end of the year (your divorce is not yet finalized), then you must file as Married Filing Jointly or Married Filing Separately, or Head of Household, if qualified. You cannot file as Single if you are married.
Read more: Divorce and Taxes 2021