401k 2024 Tax Year Limit. The irs has announced the 2024 contribution limits for retirement savings accounts, including contribution limits for 401 (k), 403 (b), and 457 (b). โ in 2024, the contribution limit for a roth 401 (k) is $23,000, plus an additional contribution of $7,500 if you are age 50 or older.
Older workers can defer paying income tax on as much as $30,500 in a 401(k) plan in 2023. Those 50 and older can contribute an additional.