Last updated 2026-05-01
See how federal taxes, state taxes, and potential penalties fit into Roth conversion estimates.
The taxable part of a Roth conversion is usually added to ordinary income for the year.
State treatment varies. Some penalties relate to distributions that do not actually enter the Roth IRA.
Federal brackets, state assumptions, tax withholding choices, and other income-linked items can all change the final bill. Use calculator output as a worksheet for review, not as tax filing instructions.
Use the Roth Conversion Calculator to model the concepts in this guide with your own educational assumptions.
Open the calculatorLearn why state income tax assumptions can materially change Roth conversion estimates.
Compare educational considerations around paying Roth conversion taxes from outside funds or withholding.
A plain-English guide to Roth conversion basics, taxable income, and key IRS rules.
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.