Roth Conversion Tax Calculator
Estimate the upfront tax cost of a Roth conversion with 2026 federal brackets, filing status, taxable income, basis, and state tax assumptions.
For users focused on the current-year tax cost of a Roth conversion.
A Roth conversion tax estimate depends on the taxable portion of the conversion, current taxable income, filing status, and state tax assumptions.
The calculator separates federal tax, state tax, and modeled penalty amounts so users can see the components of the upfront cost estimate.
The result is not a tax return calculation and does not model every deduction, credit, phaseout, Medicare threshold, or state-specific rule.
Open the live calculator, enter your own assumptions, and use the output only as an educational worksheet for professional review.
Estimate Roth conversion taxesThis page is educational and illustrative only. It does not provide tax, financial, legal, or investment advice.
This Roth Conversion Calculator is for educational and illustrative purposes only. It does NOT constitute tax, financial, legal, or investment advice. The calculation results are based on the information you provide and the latest IRS tax rules, which are subject to change. We do not guarantee the accuracy of the results. Please consult a licensed Certified Public Accountant (CPA), financial advisor, or tax professional before making any financial decisions.