Filing Status Calculator
Answer four questions about your December 31. The calculator returns your filing status, the standard deduction that follows, and the audit notes for the status people get wrong.
Filing status is the frame of the whole return - it sets the brackets, the deduction and which credits exist - yet Head of Household is the most-audited status precisely because people claim it from vibes. The rules are mechanical: one date, one qualifying person, one cost test. Four questions settle it.
How to use
- Start with December 31 marital status - that single day decides the whole year.
- Say whether a qualifying person lives with you and you pay most household costs.
- Note recent widowhood with a child: QSS keeps married-level brackets two years. All three update live.
Frequently asked questions
What are the five filing statuses?
Single, Married Filing Jointly, Married Filing Separately, Head of Household, and Qualifying Surviving Spouse. Your December 31 marital status picks the lane: married that day means MFJ or MFS for the entire year, unmarried that day opens Single, HoH or QSS depending on household and history.
Who qualifies for Head of Household?
Three tests at once: unmarried on December 31, a qualifying person (usually a child) living with you more than half the year, and you paying more than half the cost of keeping the home. Pass all three and the 22,500 dollar deduction and wider brackets follow - fail one and it is Single, which is why HoH draws audit attention.
Is filing separately ever better than jointly?
Rarely but really: income-driven student loan calculations, one spouse with huge out-of-pocket medical deductions, or liability separation all favor MFS despite narrower brackets. The calculator defaults to joint and the note names the exceptions worth a comparison run.
What is a Qualifying Surviving Spouse?
If your spouse died in the last two years and a dependent child lives with you, QSS lets you file with full joint brackets and the 30,000 dollar deduction as if married. It is designed so the worst year is not also the highest-taxed one - and it is underclaimed far more than overclaimed.