New 401(k) rule takes effect in 2026: How to avoid the costly catch-up mistake
A major retirement-plan change is now in force for some older, higher-paid workers. The costly mistake, however, is assuming last year’s 401(k) catch-up election can stay on autopilot. Beginning in 2026, many employees age 50 and older who used to make pre-tax catch-up contributions must now make those extra contributions as Roth instead. That matters…