Mega Backdoor Roth IRA: How to Use After-Tax 401(k) Space
Mega Backdoor Roth IRA: How to Use After-Tax 401(k) Space Contents Two Plan Requirements for Mega Backdoor Roth Does the Pro-Rata Rule Block Mega Backdoor Roth Conversions? Can I Convert After-Tax 401(k) Money to a Roth IRA If I Have Pre-Tax Balances? Bottom line You maxed your 2026 elective 401(k) contribution at $24,500, yet your plan allows total annual additions up to $72,000. That $47,500 gap is not waste. It is the raw material for a mega backdoor Roth IRA. This strategy converts after-tax contributions into tax-free growth, bypassing the $153,000-$168,000 MAGI phaseout that currently blocks direct Roth IRA deposits for high earners. Photo by Kindel Media on Pexels However, the math only works if your plan permits two specific mechanics: after-tax contributions and in-service distributions. Without both, the remaining space is inaccessible or unusable. A common error is assuming the process is automatic. It is not. You must execute a precise sequence: cont...