Catch Up 401k Contribution Limits 2024. The irs sets annual contribution limits and exceeding these limits can result in penalties. Workers who contribute to a 401(k), 403(b), most 457 plans and the federal government's thrift savings plan can contribute up to $23,000 in 2024, a.

The limit on employer and employee contributions is $69,000. For 2024, that limit goes up by $500 for a total of $8,000.