Read the ratings criteria that ByteDance and TikTok use to grade employees in performance reviews.

Highly compensated employees (HCEs) may face reduced 401(k) contribution limits based on company-wide salary rankings. Firms must ensure HCE contributions don't heavily outweigh those of non-HCEs.

The 401(k) catch-up contribution limit is $7,500 for those age 50 and older. The limit for employer and employee contributions will be $66,000. The 401(k) compensation limit will climb to $330,000.