For tax years 2021 and 2020, the 401(k) contributions limits have increased to $19,500. Taxpayers over age 50 may contribute up to an additional $6,500 as 'catch-up' contributions.
For tax year 2019, the 401(k) contributions limits have increased to $19,000. Taxpayers over age 50 may contribute up to an additional $6,000 as 'catch-up' contributions.
Visit this IRS link for additional information on contribution limits.