September 2021
15th: Required contribution to Money Purchase Pension Plans, Target Benefit Pension Plans, and Defined Benefit Plans.
15th: Contribution deadline for deducting 2020 employer contributions for those sponsors who filed a tax extension for Partnership or S-Corporation returns for the March 15, 2021 deadline.
30th: Deadline for certification of the Annual Funding Target Attainment Percentage (AFTAP) for Defined Benefit Plans for the 2021 plan year.
October 2021
15th: Extended due date for the filing of Form 5500 and Form 8955.
15th: Due date for 2021 PBGC Comprehensive Premium Filing for Defined Benefit Plans.
15th: Contribution deadline for deducting 2020 employer contributions for those sponsors who filed a tax extension for C-Corporation or Sole-Proprietor returns for the April 15, 2021 deadline.