September 17, 2026
Mega Backdoor Roth 2026: How Business Owners Can Build It Into a Solo 401(k)
TL;DR A mega backdoor Roth runs through a Solo 401(k) rather than an IRA, so the ceiling for 2026 is the $72,000 annual additions limit instead of the $7,500 IRA contribution limit. Your after-tax room is $72,000, or your full compensation if that is smaller, minus your elective deferrals of up to $24,500 and minus […]