Retirement Plan Contribution Deadlines

2021 Solo 401k Contribution Deadlines

Tax Entity Type 2021 Contribution Deadline 2021 Extension Contribution Deadline
Sole Proprietor (Schedule C)April 15th, 2022October 17th, 2022
LLC (Schedule C)April 15th, 2022October 17th, 2022
PartnershipMarch 15th, 2022September 15th, 2022
S-Corporation (Employer Contribution)March 15th, 2022September 15th, 2022
S-Corporation (Employee Contribution)January 31st, 2022Not Eligible
S-Corporation (Non-Deductible Employee)March 15th, 2022September 15th, 2022

2022 Solo 401k Contribution Deadlines

Tax Entity Type 2022 Contribution Deadline 2022 Extension Contribution Deadline
Sole Proprietor (Schedule C)April 17th, 2023October 16th, 2023
LLC (Schedule C)April 17th, 2023October 16th, 2023
PartnershipMarch 15th, 2023September 15th, 2023
S-Corporation (Employer Contribution)March 15th, 2023September 15th, 2023
S-Corporation (Employee Contribution)January 31st, 2023Not Eligible
S-Corporation (Non-Deductible Employee)March 15th, 2023September 15th, 2023