New to this topic? Start here first:

Investing7 min readWealth

The Backdoor Roth IRA: A High Earner's Secret

How to contribute to a Roth IRA even when your income is "too high."

Financial broker and advisor concept

The has income limits. But there's a legal loophole that lets high earners contribute anyway. It's called the "Backdoor Roth."

The Problem

2024 Roth IRA Income Limits:

  • Single: $161,000+ = no direct contributions
  • Married: $240,000+ = no direct contributions

If you make too much, you can't contribute directly to a Roth IRA. But you CAN do it through the back door.

How the Backdoor Roth Works

  1. Contribute to a (no income limit for contributions)
  2. Convert it to a Roth IRA (no income limit for conversions)
  3. Pay taxes on any gains (usually minimal if done quickly)

That's it. Completely legal, IRS-approved.

Pro Tip

The key is to convert quickly—ideally within days—so there are minimal or no gains to pay taxes on.

Step-by-Step Process

Step 1: Open Both IRAs

You need a Traditional IRA and a Roth IRA at the same brokerage.

Step 2: Contribute to Traditional IRA

  • 2024 limit: $7,000 ($8,000 if 50+)
  • Make a non- contribution (you won't get a tax break)

Step 3: Wait a Few Days

Some people convert immediately; others wait 1-2 business days. Either works.

Step 4: Convert to Roth

Call your brokerage or do it online. Request a "Roth conversion" of your Traditional IRA balance.

Step 5: Report on Taxes

File Form 8606 with your tax return to document the non-deductible contribution.

The Pro-Rata Rule (Important!)

Watch Out

If you have OTHER Traditional IRA money, the conversion gets complicated.

The IRS treats ALL your Traditional IRA money as one pool. If you have:

  • $7,000 new non-deductible contribution
  • $63,000 in an old Traditional IRA (pre-tax)

Then 90% of your conversion is taxable. You can't just convert "only the new money."

Solutions:

  1. Roll old Traditional IRA into your 401k first (if allowed)
  2. Convert everything to Roth (pay the taxes)
  3. Accept the partial taxation

The Mega Backdoor Roth

If your 401k allows after-tax contributions AND in-plan Roth conversions, you can contribute up to $69,000 total (2024) and convert the after-tax portion to Roth.

Regular 401k limit: $23,000 After-tax + conversion: Up to $46,000 more Total possible Roth savings: $69,000/year

"I've done the mega backdoor for 5 years. That's an extra $200,000+ in my Roth accounts, growing tax-free forever. Worth the paperwork."

Not all 401k plans allow this—check with your HR.

Common Mistakes

Avoid This

  • Forgetting to file Form 8606
  • Leaving money in Traditional IRA too long (gains are taxable)
  • Not checking pro-rata rule before converting
  • Missing the annual contribution deadline
  • Forgetting about state taxes on conversions

Is It Worth It?

SituationVerdict
High earner, no old Traditional IRAAbsolutely do it
Have old Traditional IRA moneyConsider rolling to 401k first
Close to Roth income limitsMay not be necessary
Young, high incomeMaximum benefit—do it every year

Quick Win

If you earn above the Roth limits, call your brokerage and ask them to walk you through a backdoor Roth. Many have streamlined the process.

Key Takeaways

  • 1The backdoor Roth lets high earners contribute to a Roth IRA through a two-step process
  • 2The pro-rata rule complicates things if you have existing Traditional IRA money
  • 3The mega backdoor Roth can add up to $46,000 more per year if your 401k allows it