Single 401k Limits 2025. Maintenance work is planned from 21:00 bst on tuesday 20th august 2025 to 21:00 bst on wednesday 21st august 2025, and on thursday 29th august 2025 from 11:00. In 2025, the irs allows you to contribute up to $23,000 to your 401(k) plan, up from $22,500 in 2023.

Employees can invest more money into 401(k) plans in 2025, with contribution limits increasing from 2023’s $22,500 to $23,000 for 2025. Most people don’t max out their 401(k).