This Marriage Tax Calculator estimates the effect of filing a joint federal tax return as a married couple compared with filing as two single people, using 2026 U.S. federal income tax brackets and standard deductions.
Filing jointly saves $1,350.00 in federal income tax (a marriage bonus).
| Spouse 1 tax filing single | $8,770.00 |
| Spouse 2 tax filing single | $3,820.00 |
| Total tax as two singles | $12,590.00 |
| Tax filing jointly | $11,240.00 |
| Marriage bonus | $1,350.00 |
| State and city tax (either way) | $0.00 |
When two people marry they usually file one joint return. Because the joint tax brackets are roughly double the single brackets, couples where one partner earns much more than the other often pay less tax together than they did apart; this is called a marriage bonus. Couples with two similar, high incomes can instead pay more, because their combined income is pushed into the top brackets sooner; this is a marriage penalty.
For each spouse the calculator subtracts pre-tax retirement savings and the larger of the 2026 single standard deduction or their itemized deductions, then applies the single tax brackets. It then repeats the calculation for the couple combined with the married-filing-jointly brackets and standard deduction. The difference between the two totals is the bonus or penalty.
Worked example: incomes of $80,000 and $50,000 with no other adjustments. Filed separately as singles, each pays tax on income above the $16,100 single deduction. Together they subtract $32,200 and use the wider joint brackets, which in this case produces a small bonus.
Filing jointly opens some credits and deductions that single filers or married-filing-separately filers lose, such as education credits and the student loan interest deduction above certain incomes. A non-working spouse can contribute to a spousal IRA. Gifts and inheritances between spouses are generally free of gift and estate tax. On the other hand, income limits for some benefits are not doubled for couples, so a few phase-outs bite harder.
Couples may also file separately. This rarely saves money but can help when one spouse has large medical expenses, wants to keep liability for the other's tax separate, or is on an income-driven student loan plan. This calculator compares single versus joint, which is the decision most newly married couples face.
This is an estimate of federal income tax only. It ignores credits such as the child tax credit and earned income credit, the alternative minimum tax, payroll taxes and special rates on long-term capital gains. State tax is approximated with a flat rate. For a final figure use tax software or a professional.
Does the wedding date matter? Your status on December 31 counts for the whole year.
Can we choose to file as singles after marriage? No; married couples choose between joint and separate returns.
Why is our result a penalty? Two similar high incomes push combined income into higher brackets faster.