Skip to main content
Newsletter

2026 key administrative dates and deadlines for calendar-year single-employer defined benefit plans

ByMilliman Employee Benefits Research Group
30 December 2025
Download PDFDownload

Related Content

Our compliance calendar for 2026 lists key administrative dates and deadlines for single-employer defined benefit plans, from January to December, with more than five dozen relevant entries for plan sponsors. The requirements are based on the Employee Retirement Income Security Act and the Internal Revenue Code.

Key components:

  • An overview on all the key dates in calendar form
  • More detailed descriptions and action needed to be taken for each item
  • Relevant IRS forms you’ll need

About the Author(s)

Milliman Employee Benefits Research Group

We’re here to help