If you are age 50 or over, the catch-up contribution limit will also stay the same at $6,000. Employer match or profit sharing contributions aren’t included in these limits. 401k/403b and 457 contribution limits are separate.
The IRS has announced the 2017 contribution limits for retirement savings accounts, including contribution limits for 401(k), 403(b), and most 457 plans, as well as income limits for IRA contribution deductibility.
401k retirement savings The catch-up contribution limit for employees who are at least 50 years of age is Oct 31, 2016 Workers 50 and over may still contribute the maximum catch-up rate of in 2017, even if employees make only the minimum contribution.