Question: what is the maximum safe harbor contribution to a 401k?
Answer: So, make sure you talk to your 401(k) plan provider well before September 1. In 2020, the basic employee deferral limits for a Safe Harbor plan are the same as any employer-sponsored 401(k): $19,500 per year for participants under 50, and $26,000 when you include catch-up contributions for employees over 50.