Max On 401k 2024. Total contributions to a solo 401 (k) cannot exceed $69,000 or $76,500 for those at least aged 50. Individuals can contribute up to $23,000 total into their traditional or roth 401 (k) plans in 2024, no matter how high their income is that year.

The 401 (k) contribution limit for 2024 is $23,000 for employee contributions, and $69,000 for the combined employee and employer contributions. In this calculator field, enter your total 2023 household income before taxes.