Roth Conversion Tax Calculator
Estimate the tax bill on converting to a Roth IRA.
Enter your values
ⓘ Live results
Results
- Tax owed on conversion (this year)
- $24,000.00
- Roth value at withdrawal (tax-free)
- $275,903.15
- Traditional after-tax value (if left unconverted)
- $209,686.40
- Better choice
- Convert to Roth
Quick answer
Converting to a Roth triggers ordinary income tax on the converted amount in the year of conversion, but future growth and withdrawals become tax-free.
Conversion tax = converted amount x marginal tax rate
How to use the Roth Conversion Tax Calculator
- 1Enter the balance you're considering converting and your current marginal tax rate.
- 2Enter your investment horizon and assumed return.
- 3Compare against leaving it traditional and paying tax at your expected future rate on withdrawal.
Worked example
Using the values the calculator loads with:
Inputs
- Amount to convert100000 $
- Marginal tax rate24 %
- Years until withdrawal15 years
- Assumed annual return7 %
- Expected future tax rate if not converted24 %
Results
- Tax owed on conversion (this year)$24,000.00
- Roth value at withdrawal (tax-free)$275,903.15
- Traditional after-tax value (if left unconverted)$209,686.40
- Better choiceConvert to Roth
Frequently asked questions
Should I pay the conversion tax from the IRA itself?
Better to pay it from outside funds so the full balance keeps growing tax-free inside the Roth.
Is there a deadline for Roth conversions?
Conversions must be completed by December 31 of the tax year in which you want them counted.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.