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Mega Backdoor Roth Calculator

Calculate your after-tax 401(k) contribution room and tax-free growth potential

Your 401(k) Details
Enter your income, contributions, and plan features

Income & Age

15 years until catch-up eligible

Current Contributions

Total employer contribution per year

For context on your overall Roth savings

Plan Features

Plan allows after-tax 401(k) contributions

Plan allows rollover to Roth IRA while employed

Plan supports automatic Roth conversion

Enter Your 401(k) Details

Fill out the form to see if the mega backdoor Roth strategy is available to you