Advanced Tactics

The Mega Backdoor Roth: How High Earners Save up to $70,000

An advanced look at how after-tax 401(k) contributions and in-plan Roth rollovers can unlock massive tax-free annual savings.

By Marcus Vance, CPA
The Mega Backdoor Roth: How High Earners Save up to $70,000

Supercharging Your Tax-Free Bucket

While regular Roth IRA contributions are capped at $7,500, select employers offer 401(k) plans with after-tax non-Roth contributions and in-service distributions.

When these features exist, participants can contribute up to the overall defined contribution limit (exceeding $70,000 per year combined between employer match and employee contributions) and roll those after-tax dollars directly into a Roth IRA or Roth 401(k).

Estimate Your Own Tax-Free Roth IRA Growth

Use our 2026 interactive calculator to test different contribution amounts and compound growth rates.

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