Marriage Tax Calculator 2026

Find out if getting married creates a tax penalty or bonus based on both incomes.

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Marriage penalty

$0

more in taxes married, filing jointly

$0/paycheck difference (biweekly)

Unmarried (two single returns)

$135,581

net income

Total tax$44,419
Effective rate24.7%

Married filing jointly

$135,581

net income

Total tax$44,419
Effective rate24.7%

Combined household income: $180,000. Marrying and filing jointly costs an additional $0 in taxes per year.

Compares two single filers vs one married-filing-jointly return. Based on 2026 tax rates. Does not account for credits, deductions, or married-filing-separately.

How it works

This calculator compares two tax scenarios: (1) both spouses filing as single individuals on their own income, and (2) filing jointly on their combined income using married-filing-jointly brackets.

Marriage penalty: Occurs when joint filing results in more tax than two separate single returns. This happens because the married brackets at higher income levels are not exactly double the single brackets, so two similar high incomes get pushed into higher brackets faster.

Marriage bonus: Occurs when joint filing results in less tax. This typically happens with income disparity — the lower earner's income fills the bottom of the joint brackets at lower rates, while as a single filer the higher earner's income was already in a high bracket.

The calculation includes federal income tax, state income tax, Social Security, and Medicare. FICA taxes are calculated individually for each spouse in both scenarios.

FAQ

What is the marriage tax penalty?

When a married couple pays more in taxes filing jointly than they would as two single filers. Common when both spouses earn similar high incomes.

When do we get a marriage bonus?

When there is a large income disparity between spouses. The lower earner's income fills the bottom brackets at lower rates, reducing overall tax.

Is married filing separately better?

Rarely. MFS uses narrower brackets and disqualifies many credits and deductions. It is occasionally beneficial in specific situations (e.g., high medical expenses). This calculator compares single vs joint, not MFS.

How can I reduce the marriage penalty?

Maximize pre-tax deductions (401(k), HSA), consider timing income across years, and ensure you are using all available credits. The penalty is built into the bracket structure, so options are limited.

Should I file married filing jointly or separately?

Jointly, for most couples. The joint brackets and the $$32,200 standard deduction are exactly double the married-filing-separately figures, and filing separately usually gives up the earned income credit, the education credits, and the student loan interest deduction. Separate returns can still win when one spouse is on an income-driven student loan plan, has medical expenses that are large relative to their own income, or wants no liability for the other's return. This calculator compares a joint return with two unmarried single returns; it does not model married filing separately.

What is the difference between filing jointly and separately?

Filing jointly puts both incomes on one return with the joint brackets and a $$32,200 standard deduction. Married filing separately gives each spouse half of those figures: the same 10% to 32% brackets a single filer gets, but the 35% bracket ends at half the joint threshold, and if one spouse itemizes both must. Two unmarried people filing single, which is what this calculator compares against, each get the single brackets and a $$16,100 deduction.

Related tools

Estimates based on 2026 federal and state tax rates. Does not include credits, itemized deductions, local taxes, or married-filing-separately analysis. Consult a tax professional for advice.