Plan Amendments In The Home Stretch of 2026

For a lot of retirement plan sponsors, “amend the plan document” has lived on the same to-do list as “clean out the storage closet” — worth doing, though not urgent. That’s about to change. December 31, 2026 brings the deadline for adopting required retirement plan amendments tied to the SECURE Act, the CARES Act, and SECURE 2.0. Amendments are no longer a someday project: it’s time to ensure your plan document is up to date, and in sync with your plan operations.

Why This Amendment Cycle Is Bigger Than Usual

Since 2019, Congress has passed several major pieces of retirement legislation, and the IRS has generally allowed plan sponsors to operate in good-faith compliance with new rules before the written plan document had to catch up. That grace period is ending. Under IRS Notice 2024-2, most calendar-year qualified retirement plans and non-governmental 403(b) plans must formally adopt amendments reflecting SECURE Act, CARES Act, and SECURE 2.0 provisions by December 31, 2026. 

Collectively bargained plans and governmental plans have later deadlines, and a separate notice pushed the deadline for IRAs, SEPs, and SIMPLE IRA plans to December 31, 2027.

SECURE 2.0 alone introduced roughly ninety retirement-related provisions, some mandatory and some optional, which is why the IRS guidance behind this deadline runs long and touches nearly every kind of qualified plan. Almost no plan sponsor gets to sit this one out entirely.

Risky: Mismatched Plan Documents and Practices 

Many plans have already been administering SECURE 2.0 features operationally — automatic enrollment for new plans, expanded catch-up limits, updated hardship withdrawal rules, long-term part-time employee eligibility — without the underlying plan document actually saying so yet. That gap between practice and paper has been tolerated under IRS transition relief. It will not be tolerated indefinitely.

A retirement plan is legally required to be operated in accordance with its written terms. When operations run ahead of the document — or when the amendment eventually adopted doesn’t quite match what’s actually been happening in payroll, recordkeeping, or plan administration — that mismatch is exactly the kind of issue that surfaces in an IRS or DOL examination, a plan audit, or a participant dispute over eligibility, contributions, or a distribution. It can raise plan qualification concerns and, depending on the circumstances, expose sponsors and other fiduciaries to correction costs or claims that the plan wasn’t administered as promised. 

As attorneys at Hinshaw & Culbertson LLP bluntly put it in recent guidance: “The guiding principle has been ‘operational compliance now, plan amendments later.’ We are quickly approaching the moment when ‘later’ means ‘now.’”

Good to Know: Key Deadline Summary

• December 31, 2026: Deadline for most calendar-year qualified plans and non-governmental 403(b) plans to formally adopt required and discretionary SECURE Act, CARES Act, and SECURE 2.0 amendments.
• December 31, 2027: Extended deadline (per IRS Notice 2026-9, for IRAs, SEPs, and SIMPLE IRA plans.
• December 31, 2028 / 2029: Later deadlines apply to collectively bargained and governmental plans, respectively.

Four Areas Worth a Second Look Before Year-End

• Optional SECURE 2.0 features already in practice: Roth employer contributions, student loan matching, and emergency savings accounts need document language that matches what’s actually being offered.
• Long-term part-time employee eligibility: Confirm your document and your actual eligibility tracking are telling the same story.
• Automatic enrollment provisions: For plans subject to mandatory auto-enrollment, the escalation mechanics in the document should mirror payroll practice.
• Roth catch-up contribution rules for higher-income participants: This requirement applies to participants with prior-year wages exceeding $145,000 (indexed). It leans heavily on payroll and recordkeeping coordination, which is exactly where documentation gaps tend to hide.

Don’t Wait Until December

TPAs, ERISA counsel, and recordkeepers are going to get busier and busier as 2026 winds down. Retirement plan sponsors are wise to get to work now — comparing what the plan actually does against what the document  says. Working with a qualified plan advisor and legal counsel while there is time will help you make thoughtful decisions about optional provisions, coordinate with vendors, and fix operational disconnects before they become a compliance finding. Given the penalties for oversights and errors, no one wants to be rushing through ERISA paperwork as the clock ticks down on 2026.

Protecting the Plan — and the People Who Run It

Retirement plan sponsors carry personal fiduciary responsibility for getting everything right,  and an amendment cycle this large is a reminder of how much exposure sits with the people signing off on plan administration. That’s exactly what Colonial Surety Company’s ERISA Bundle is built for: an ERISA Fidelity Bond to meet the mandatory bonding requirement under ERISA Section 412, paired with Fiduciary Liability Insurance and Cyber Liability Insurance, so sponsors have meaningful coverage against claims tied to plan administration. 

Learn more about your ERISA protection options and get a quote in minutes, right here: Fiduciary + Cyber Liability Bundle 

In business since 1930, Colonial Surety Company  is A.M. Best rated A (Excellent), U.S. Treasury-listed, and licensed in all 50 states, with a 4.8 Trustpilot rating from customers. Visit us online or call 888-383-3313 to talk through your ERISA Bundle options before year-end.