Clearly, a 401(a) plan and a 403(b) plan must be aggregated when applying the 402(g) limits and catch-up contributions. But what if the employer has a 403(b) plan and a 457 plan? Can the 50+ employee contribute $16,500 in elective deferrals and $5,500 in catch-up contributions to each plan, essentially "double dipping"? I have not found clear authority on this matter, but have noted that 457 plans seem to be treated separately for so many of the retirement plan rules.

Thank you!

The 457(b) "annual deferral" limit (which is vested employer contributions plus employee contributions) has no bearing on the 402(g) limit which affects a 403(b) salary deferral.