401k Mega Backdoor Roth Limit 2025. A mega backdoor roth is a strategy that allows individual investors to contribute more to a roth ira and/or roth 401(k) than the standard contribution limits. In 2023, you can contribute up to $22,500, or $30,000 if you're 50.
The roth ira contribution limits for 2025 are $7,000, or $8,000 if you’re 50 or older, unchanged from 2025. How much can you put in a mega backdoor roth in 2025?