Filing Status in 2026: The Rules and the Math
Your filing status sets your standard deduction, your tax brackets, and many credit limits — so choosing correctly is worth real money. The four individual statuses in 2026 are single ($16,100 deduction), married filing jointly ($32,200), head of household ($24,150), and married filing separately ($16,100). This guide covers who qualifies for each and when the math matters.
The rules, briefly
- Single: unmarried, or married and living apart at year-end without a dependent.
- Married filing jointly: married as of December 31 and both agree — almost always the best rate for a couple.
- Married filing separately: available to any married couple; both must use it, and most credits and deductions shrink. Rarely better — exceptions include one spouse with large medical bills or income-driven student loan payments.
- Head of household: unmarried (or married but separated for the last 6 months of the year), pays more than half the cost of keeping up a home, and has a qualifying dependent living there.
The marriage penalty and bonus
Joint brackets are not double the single brackets in every band. The 10% and 12% bands are exactly doubled, which is why many two-earner couples pay less married than single — the marriage bonus. At the top end the bands compress, so very high-income couples can pay more married than single — the marriage penalty. There is no single answer; run the filing status comparison with your numbers.
Worked comparison at $100,000
| Status | Standard deduction | 2026 tax on $100k |
|---|---|---|
| Single | $16,100 | $13,170 |
| Married filing jointly | $32,200 | $7,640 |
| Head of household | $24,150 | $9,588 |
| Married filing separately | $16,100 | $13,170 |
The spread between statuses at the same income is over $5,500 — but remember you cannot freely choose: your family situation fixes the status. The real choices are MFJ vs MFS for a married couple, and whether you qualify for HOH instead of single.
Why HOH is the hidden gem
Head of household combines a $24,150 standard deduction with wider low brackets (12% runs to $67,450 vs $50,400 for single). For a single parent earning $60,000–$80,000, HOH versus single is routinely a $1,500–$2,500 difference — one of the largest tax breaks that people forget to claim. The qualifying-dependent test is the gate: a child, parent, or relative who lives with you and whom you support.
Related tools
Compare statuses with the filing status calculator, then layer on the child tax credit, the EITC, and the 2026 brackets calculator.