Solo 401k Contribution Limits 2024. Contributions to a solo 401k plan must be made by your business tax. Then, as the employer, you can make a contribution of up to 25% of your compensation each year.
Learn what the 2023 and 2024 contribution limits are. In 2025, it will be between $79,000 and $89,000, up from between $77,000 and $87,000.