Zoho Sheet

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Solo 401k Contributions For Incorporated Part-Time Self-Employment

This spreadsheet calculates the maximum contributions to a solo 401k plan for someone who works at a day job and runs an incorporated business on the side. Use the other tab at the bottom if the business is unincorporated.

Cells under "Assumptions" in blue are inputs. Feel free to change to your own situation.

Other cells are calculated. For more information, please read blog post:

Solo 401k Contributions For Part-Time Self-Employment

Assumptions

Annual 401k Salary Deferral Limit - 402(g)

16,500

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Maximum addition to defined contribution plan - 415(c)

49,000

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Age-50 catch up limit (set to 0 if under age 50) - 414(v)(2)(B)(i)

5,500

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Salary Deferral contributions to day job 401k

22,000.00

Compensation from self-employment, before salary deferral

1,000

Calculated Fields

Maximum Salary Deferral from self-employment

0.00

Maximum Profit Sharing from self-employment, after maximum salary deferral

250.00

Unincorporated

Incorporated