Backdoor Roth IRA

Backdoor Roth IRA is a strategy where high-income individuals make nondeductible Traditional IRA contributions and convert to Roth, with pro-rata rule applying to existing pretax IRA balances.

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Exam Tip

Backdoor = nondeductible contribution + conversion. Pro-rata rule traps most people! Roll pretax IRA to 401(k) first.

What is a Backdoor Roth IRA?

The Backdoor Roth IRA strategy allows high-income earners to fund a Roth IRA indirectly by contributing to a nondeductible Traditional IRA and then converting to Roth.

The Two-Step Process

StepAction
Step 1Contribute to nondeductible Traditional IRA
Step 2Convert to Roth IRA (ideally soon after)

Pro-Rata Rule Warning

If you have existing pretax IRA balances, the pro-rata rule applies:

Example with $94,000 pretax IRA:

  • Convert $6,000 nondeductible contribution
  • Total IRA: $100,000 ($94,000 pretax + $6,000 after-tax)
  • Taxable portion: 94% of $6,000 = $5,640 taxable
  • Only $360 is tax-free

Solution: Clean Slate

Roll existing pretax IRA into 401(k) before doing backdoor strategy.

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