4th Quarter Compliance Calendar

October 3, 2023 // SMA Services, Inc.

4th Quarter Compliance Calendar

With the start of the 4th quarter of the year, there are numerous 401(k) administration retirement plan compliance deadlines on the horizon:

October 15

  • Extended Deadline: Filing tax returns for partnerships 
  • Extended Deadline: Contribution deadline for deductibility for calendar-year partnerships and S-corporations

November 15

  • Summary Annual Report (SAR) for each qualified plan must be mailed to participants for plans that filed a corporate tax extension. This is due two months after the extended due date. 
  • Quarterly Benefits/Disclosure Statement for Participant Directed DC Plans. Good Faith Compliance due 45 days after the end of the quarter. 

December 1

  • Deadline: Sending annual 401(k) and safe harbor match notice
  • Deadline: Sending annual QDIA, qualified default investment alternative notice
  •  Deadline: Sending annual automatic contribution arrangement notice (ACA) For administrative ease, a combined notice may be provided for the above notices 

December 15

  • Extended deadline: Distributing SAR to participants

December 31

  • Deadline: Processing corrective distributions for failed ADP/ACP test with 10% excise tax
  • Deadline: Correcting a failed ADP/ACP test with qualified nonelective contributions (QNECs) 
  • Deadline: Converting existing 401(k) plan to safe harbor nonelective design for current plan year
  • Deadline: Amendment to remove or convert to safe harbor status for next plan year
  • Deadline: Amending plan for discretionary changes implemented during plan year (certain exceptions apply)
  • Deadline: RMDs due under IRC Section 401(a)(9)
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