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Class Code Explainer

Find Your Contractor Insurance Class Code

Your class code is the single biggest factor in your workers comp premium — and it influences your general liability pricing too. Look up your trade below.

Contractor reviewing a class code document on a job site

An insurance class code is a numeric classification — most commonly issued by the National Council on Compensation Insurance (NCCI), though a handful of states including California, Texas, New York, Pennsylvania, and a few others maintain their own independent rating bureaus — that categorizes your business by the type of operations you perform. Carriers use it primarily to rate workers compensation premiums, since different trades carry very different statistical injury frequency and severity, but the classification also informs general liability underwriting.

Getting your class code right matters more than most contractors realize. Under-report your risk and you could face a large additional premium bill at your year-end audit when your actual payroll and operations don't match what was quoted. Get placed under the wrong (higher-risk) code and you could be overpaying for years without ever knowing it. The table below covers the most common class codes we see across contractor trades — use it as a starting point, then confirm your exact classification with a licensed agent during your quote.

Quick Reference

Common Class Codes by Trade

TradeTypical Class Code(s)Relative Risk
General Contractors91580 / 97447Medium-HighDetails
Roofing Contractors5551 / 5552HighDetails
Electrical Contractors5190MediumDetails
Plumbing Contractors5183 / 5187MediumDetails
HVAC Contractors5537Medium-HighDetails
Handyman Services5437MediumDetails
Landscaping Contractors0042 / 97047HighDetails
Remodeling Contractors5437 / 5645Medium-HighDetails

Class codes shown are common examples, not guaranteed classifications — your carrier will confirm your exact code based on your state and description of operations.

1. Description of Operations

You describe exactly what work your business performs — this is the single biggest input into classification.

2. Bureau Cross-Reference

Your carrier cross-references that description against NCCI or your state's rating bureau manual to assign a code.

3. Rate Applied to Payroll

Your class code's rate per $100 of payroll is applied to your estimated (then audited actual) payroll to set premium.

FAQ

Class Code Questions

A class code is a standardized number — usually from NCCI or your state's rating bureau — that classifies your business by the type of work you do. Insurers use it to determine your workers comp rate and, to some extent, your general liability pricing, because different trades carry statistically different injury and claims frequency.
Your insurance carrier assigns your class code based on the description of operations you provide during underwriting, cross-referenced against your state's rating bureau manual (most states follow NCCI class codes; a handful of states like California, Texas, and New York have their own independent rating bureaus).
Misclassification can cut both ways — you might overpay for years under a higher-risk code than your actual work justifies, or you might be underpaying and get hit with a large additional premium bill after an audit discovers the mismatch. Either way, getting your code right at the start avoids surprises.
Yes. If your business genuinely performs multiple distinct types of work (for example, a remodeling company that also does standalone electrical subcontracting), you may be rated under multiple class codes with payroll and revenue split between them.
Class codes most directly drive workers compensation rating, but general liability pricing also references your classification and description of operations — a roofer and a handyman with identical revenue will still be priced very differently for GL because of the underlying risk of the work itself.

Not Sure Which Class Code You Fall Under?

Tell us your trade and we'll confirm your classification as part of your free quote.