Marriage Tax Calculator 2026 — Penalty vs. Bonus Comparison
Compare your tax bill filing as singles vs. married filing jointly with 2026 IRS brackets. Free online calculator with formula guide and step-by-step results.
Marriage Tax Calculator
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If UNMARRIED — Combined Federal Tax (filing 2 singles)
$15,898
• Partner 1 (income $85,000, deduction $15,750)
$10,149
• Partner 2 (income $65,000, deduction $15,750)
$5,749
If MARRIED — Joint Federal Tax (MFJ, deduction $31,500)
$15,898
Combined Household Income
$150,000
Effective Tax Rate — Filing as 2 Singles
10.60%
Effective Tax Rate — Filing Jointly
10.60%
Tax Year Used
2026 IRS brackets and standard deductions
Scenario Comparison
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Tax Neutral — No Difference
Combined income: $150,000
Single Effective Rate
10.60%
Married Effective Rate
10.60%
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