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Backdoor Roth IRA Explained
A backdoor Roth IRA is a strategy allowing high earners who exceed Roth IRA income limits to still contribute, by first contributing to a Traditional IRA and then converting to a Roth.
Why This Strategy Exists
Roth IRA contributions phase out entirely above certain income levels ($161,000 for single filers, $240,000 for married filing jointly, 2025 figures) — the backdoor method provides a legal path around this limit, since there's no income cap on Traditional IRA contributions or Roth conversions.
How It Works
| Step | Action |
|---|---|
| 1 | Contribute to a Traditional IRA (non-deductible if over income limits) |
| 2 | Convert the Traditional IRA balance to a Roth IRA |
| 3 | Pay any tax owed on investment growth during the brief holding period |
The Pro-Rata Rule Complicates This
If you have existing pre-tax Traditional IRA balances, the IRS "pro-rata rule" can make conversions more complex and potentially taxable — this strategy works most cleanly if you have no other Traditional IRA balances.
Common Mistakes
Not accounting for the pro-rata rule when you have existing pre-tax IRA balances — this can result in an unexpected tax bill different from what a simple backdoor conversion would suggest.
Frequently Asked Questions
Yes — it's a well-established, IRS-acknowledged strategy, though the tax implications can be complex if you have existing pre-tax IRA balances (the pro-rata rule).
It's advisable, especially if you have existing Traditional IRA balances — the pro-rata rule can create unexpected tax consequences that a professional can help navigate correctly.