Solo 401k Calendar
Key Dates for Your Solo 401k
Mark the following deadlines on your calendar for your Solo 401k
For the business and plan year of January 1 – December 31
January
Start planning for contributions for the new year. Automatic enrollment is included in your plan, set at 3% for employee contributions.
Planning for contributions Automatic enrollment in the Solo 401k
Beginning of the plan year
Sense Financial deadline to receive requests for Form 1099-R filing service
Deadline to issue Form 1099-R from your Solo 401k to the participant(s), if needed
March
Tax filing deadline for S-corporations and partnerships
Filing deadline for Form 8881 for the first year of automatic enrollment in your plan
Deadline for electronically filing Form 1099-R with the IRS
April
Deadline to receive initial required minimum distributions (RMDs)
Tax filing deadline for sole proprietorships and C-corporations
June
July
Sense Financial deadline to receive requests for Form 5500-EZ filing service
September
Extended tax filing deadline for S-corporations and partnerships
October
Review RMDs, if needed
Extended tax filing deadline for sole proprietorships and C-corporations
November
Prepare the required annual notice for automatic enrollment, available on our client portal
Prepare for contributions based on your compensation for the year
- Your business type and contribution type will affect how and when contributions are made
- If your business has a tax status of corporation, your employee contribution must be processed through payroll
- Let your payroll provider know before they run your payroll at year end
Prepare for Roth conversions, if planned
December
Prepare for Form 5500-EZ, which will be due next year
- You will need to enter the value of all assets in your Solo 401k, including cash and investments, as of December 31 of this year
- Start gathering and calculating these values
Calculating plan assets How do I value real estate in my Solo 401k plan?
Deadline to distribute the automatic enrollment annual notice for the following year to all employees
Complete the contribution election form for the year and keep it in your file as plan administrator
Deadline to take RMDs
Throughout the year
As plan administrator, you are responsible for all recordkeeping for your Solo 401k