Use this free marriage tax calculator to compare two single federal tax estimates with a married filing jointly estimate using 2026 ordinary-income brackets.
$90,000 + $70,000 compared with joint filing
This excludes state tax, payroll tax, credits, phaseouts, itemized deduction limits, AMT, and many tax details.
Compare whether the entered incomes show a rough marriage bonus or penalty.
Test how custom deductions or joint credits affect the simple comparison.
See taxable income and marginal bracket before discussing tax planning.
Use as an education screen, not as tax filing guidance.
Joint vs two-single tax comparison
Marriage difference estimate
Adjusted comparison
Plain-language answers about when to use the estimate, what your numbers mean, what is left out, and how privacy works.
Use it for early planning and side-by-side comparisons, especially for tasks like these: Compare whether the entered incomes show a rough marriage bonus or penalty. Test how custom deductions or joint credits affect the simple comparison. Treat the answer as a planning estimate, not a final quote.
In plain language: The calculator estimates each person as a single filer, estimates the combined income as married filing jointly, then subtracts the two-single total from the joint total. If the result seems too high or too low, first check whether each field expects a monthly amount, annual amount, dollar value, or percent.
This is a simplified federal ordinary-income estimate. It does not include state tax, payroll tax, phaseouts, itemized deduction limits, AMT, credits, dependents, or filing advice. Real finance decisions can also depend on fees, timing, local rules, credit details, and provider-specific terms.
No. The calculator runs in your browser tab. Recent answers stay only on the page while you use it, and they are not sent to a server.