What is a plan restatement and when is one required?
Last updated October 2, 2026
A restatement rewrites the entire plan document to incorporate accumulated amendments and law changes. Pre-approved defined contribution documents must be restated on the IRS's roughly six-year cycle; missing the window jeopardizes the plan's tax qualification.
Between restatements, plans accumulate patches — legally required amendments for new statutes, discretionary design tweaks. A restatement consolidates everything into a fresh, current document.
For employers on pre-approved documents (the vast majority of 401(k) sponsors), the IRS runs recurring restatement cycles — approximately every six years per plan type — with a fixed adoption window announced for each cycle. Document providers supply the restated documents; the employer's job is executing them on time and keeping the signed papers.
Missing a restatement deadline is a qualification failure, fixable through IRS correction programs but at real cost. Two habits prevent it: know which cycle applies to your document, and treat provider restatement notices as compliance deadlines rather than paperwork — signed, dated, and filed with the plan records.
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