Backdoor Roth IRA Calculator

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Used to confirm ineligibility for direct Roth contributions

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Backdoor Roth Analysis

Understanding the Backdoor Roth IRA

The Backdoor Roth IRA is a strategy that allows high-income earners to contribute to a Roth IRA despite exceeding the income limits for direct contributions. This involves making a non-deductible traditional IRA contribution and then converting it to a Roth IRA.

Why Use a Backdoor Roth?

  • Bypass Roth IRA income limits
  • Tax-free growth and withdrawals in retirement
  • No required minimum distributions
  • Tax diversification in retirement
  • Estate planning benefits

The Pro-Rata Rule

The pro-rata rule is the most important consideration. When converting, the IRS looks at ALL your traditional IRA balances combined. The percentage that's non-deductible (basis) determines the tax-free portion of your conversion.

Example: $50,000 existing IRA + $7,000 new contribution = $57,000 total. If only the $7,000 is non-deductible, then only 12.3% of any conversion is tax-free.

Important Considerations

  • Legislative Risk: Congress has considered eliminating this strategy
  • State Taxes: Some states don't allow Roth conversions
  • 5-Year Rule: Each conversion has its own 5-year clock for penalty-free withdrawal
  • Medicare Premiums: Conversions increase income, potentially raising Medicare costs
  • Form 8606: Critical for tracking basis and avoiding double taxation

Best Practices

  • Convert quickly to minimize gains
  • Keep contribution in money market fund
  • File Form 8606 for both contribution and conversion
  • Consider rolling existing IRAs to 401(k) first
  • Track basis carefully for future reference
  • Coordinate with tax professional for complex situations