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Class code (workers' comp)
Published 2026-06-12 · by Brokly
In plain terms: A standardized code that groups businesses by the kind of work they do — your workers' comp rate is set per class code, not per business.
Why it matters to you
The same payroll dollar costs a very different premium in different class codes, because each rate reflects that trade's injury history. Misclassification cuts both ways: the wrong code can mean overpaying for years — or an audit bill when it's corrected.
Where you’ll see it
On workers' comp quotes, policies, and audits — and across this site: our trade pages are organized around these classes.
Related terms
Definitions describe how policies are typically structured — exact terms live in the policy. Not legal or compliance advice.