Backdoor Roth IRA: The Complete Guide for High Earners

What Is a Backdoor Roth IRA?

A backdoor Roth IRA is a legal strategy that allows high-income earners to contribute to a Roth IRA even if their income exceeds the direct contribution limits. In 2026, single filers earning above $161,000 and married filers above $240,000 cannot contribute directly to a Roth IRA.

The backdoor strategy works around this by contributing to a Traditional IRA first (which has no income limit for non-deductible contributions) and then converting it to a Roth IRA.

Step-by-Step Process

1. Open a Traditional IRA at Fidelity, Vanguard, or Schwab (if you don't already have one)
2. Make a non-deductible contribution of up to $7,000 ($8,000 if 50+) to the Traditional IRA — do NOT deduct this on your taxes
3. Wait a few days for the contribution to settle (some advisors recommend longer to avoid "step transaction" issues)
4. Convert the Traditional IRA to a Roth IRA — most brokerages allow this online in minutes
5. File Form 8606 with your taxes to document the non-deductible contribution and avoid paying taxes twice

The Pro-Rata Rule — Critical Warning

The backdoor Roth strategy works cleanly only if you have NO pre-tax money in any Traditional IRA, SEP IRA, or SIMPLE IRA. If you do, the pro-rata rule requires you to pay taxes on a proportional amount of any conversion.

For example, if you have $50,000 in pre-tax Traditional IRA money and try to convert $7,000, you can't just convert the non-deductible $7,000 — the IRS calculates taxes pro-rata across all IRA money.

How to Handle Existing Traditional IRA Funds

If you have pre-tax Traditional IRA money, consider rolling it into your employer's 401(k) plan first. Many 401(k) plans accept incoming rollovers, which would clear your Traditional IRA and allow a clean backdoor conversion.

Mega Backdoor Roth

Some employer 401(k) plans allow after-tax contributions beyond the standard $23,500 limit, which can then be converted to Roth inside the plan. This "mega backdoor Roth" can allow contributions of up to $69,000 annually — but plan availability varies widely.