401k Plan Sponsor’s Quarterly Calendar for Q4 2025
OCTOBER
- Audit third-quarter payroll and plan deposit dates to ensure compliance with the U.S. Department of Labor’s rules regarding timely deposit of participant contributions and loan repayments.
- Verify that employees who became eligible for the plan between July 1 and September 30 received and returned an enrollment form. Follow up on forms that were not returned.
- For calendar-year safe harbor plans, issue the required notice to employees during October or November (within 30–90 days of the beginning of the plan year to which the safe harbor is to apply). Also, within the same period, distribute the appropriate notice if the plan features an Eligible Automatic Contribution Agreement, Qualified Automatic Contribution Agreement and/or Qualified Default Investment Alternative.
NOVEMBER
- Prepare to issue an announcement to employees to publicize the plan’s advantages and benefits, and any plan changes becoming effective in January.
- Conduct a campaign to encourage participants to review and, if necessary, update their mailing addresses to ensure their receipt of Form 1099-R, to be mailed in January for reportable plan transactions in the current year.
- Check current editions of enrollment materials, fund prospectuses and other plan information that are available to employees to ensure they are up to date.
- Provide a quarterly benefit/disclosure statement and statement of plan fees and expenses actually charged to individual plan accounts during the prior quarter, within 45 days of the end of the last quarter.
- Prepare and distribute annual plan notices, such as the 401(k) safe harbor for safe harbor plans with a match, Qualified Default Investment Alternative annual notice, and automatic enrollment and default investment notices, at least 30 days before the plan year-end.
DECEMBER
- Prepare to send year-end payroll and updated census data to the plan’s recordkeeper in January for year-end compliance testing (calendar-year plans).
- Verify that participants who terminated during the second half of the year selected a distribution option for their account balance and returned the necessary form.
- Review plan operations to determine if any ERISA or tax-qualification violations occurred during the year and if using an Internal Revenue Service or U.S. Department of Labor self-correction program would be appropriate.
Consult your plan’s financial, legal or tax advisor regarding these and other items that may apply to your plan.
Footnotes
For plan sponsor use only. Not for use with participants or the general public.
This information is not intended as authoritative guidance or tax or legal advice. You should consult your attorney or tax advisor for guidance on your specific situation. In no way does advisor assure that, by using the information provided, plan sponsor will be in compliance with ERISA regulations.
©2025 Kmotion, Inc. All rights reserved. This newsletter is a publication of Kmotion, Inc., whose role is solely that of publisher. The articles and opinions in this newsletter are those of Kmotion. The articles and opinions are for general information only and are not intended to provide specific advice or recommendations for any individual. Nothing in this publication shall be construed as providing investment counseling or directing employees to participate in any investment program in any way. Please consult your financial advisor or other appropriate professional for further assistance with regard to your individual situation.
RP-277-0525 Tracking #781127 (Exp. 08/27)
