Solo-401k Contribution Calculator

Calculate the Solo-401(k) contribution limits to maximize your savings for 2023 and 2024.

The tax year for which you are making the contribution.
This calculator is only meant for sole proprietors (or LLCs taxed as sole proprietors). For businesses set up as an S-corp, C-corp, or LLC taxed as such, please consult with a tax professional.
Your age at the end of the contribution tax year.
The net profit (revenue minus expenses) your business made.
If you exceeded the contribution limits in the prior year (and had to file IRS Form 5330), enter the amount of the excess contribution.
Other Income
If you have earnings from another job, i.e. a "day job", check the box and specify contributions made through that job.
Enter the total gross earnings as an employee of other jobs
Amount of regular (non-catch-up)contributions to other pre-tax 401(k) or 403(b) plans
If you were 50 or older, enter the amount of any catch-up contributions you made to any other pre-tax 401(k) or 403(b) plans