The maximum pretax contribution U.S. employees can make to their 401(k) plans in 2016 will remain at USD 18,000, unchanged from 2015. Other parameters such as the maximum catch-up contribution older employees can make to a plan (USD 6,000), the amount of employee compensation that can be considered in calculating pension benefits and contributions to DC plans (USD 265,000), the definition of a highly compensated employee for nondiscrimination testing (USD