How Often Should You Review an SOP?
Use a practical review cadence based on process risk, change frequency, ownership, and the warning signs that tell you a procedure has drifted.
Do not rely on the calendar alone
A scheduled review date is useful, but an SOP can become wrong long before that date arrives. The best maintenance system uses both a regular cadence and event-based triggers.
A practical starting cadence
For many ordinary business procedures, an annual review is a reasonable starting point. Processes that change frequently, affect money, create customer risk, involve important approvals, or depend on changing software may deserve quarterly or semiannual review instead.
The business should choose the cadence based on the consequence of being wrong—not because a template says every document must use the same interval.
Review immediately when something material changes
- A system, form, vendor, or software workflow changes.
- The process owner or approval authority changes.
- A recurring error, complaint, rework issue, or missed handoff appears.
- A step no longer matches what operators actually do.
- A new exception becomes common enough to document.
- A policy, contract, safety requirement, or regulation changes.
What to check during the review
Confirm the owner, trigger, inputs, links, tools, numbered steps, decision points, approvals, exceptions, quality check, completion standard, and revision history. Then compare the document to actual execution rather than reviewing the document in isolation.
Make maintenance visible
Every SOP should show an owner, version, effective date, and next review date. If nobody owns the document, maintenance becomes optional by accident. Use the free SOP Audit Checklist when you want a repeatable review process.