Roofers pay more for workers’ comp than almost any other trade in California, and they have to carry it whether or not they have employees. The 2026 benchmark rate for low-wage roofing payroll is $20.83 per $100 of payroll, more than twelve times the statewide average of $1.65. Here is what drives that number, the wage line that can cut it by more than a third, and what a roofer can actually control.
Do roofers need workers’ comp with no employees?
Yes. C-39 Roofing was the first CSLB classification required to carry workers’ compensation regardless of employees, years before any other trade. A one-person roofing company cannot file the no-employee exemption that most other classifications can still use until January 1, 2028. If the policy lapses, the CSLB suspends the license automatically, and you cannot legally contract while suspended.
The rule exists because of the injury record. Falls are the leading cause of death in construction, and roofing combines height with hot work, heavy material handling and weather. Carriers price the class the same way the state regulates it. If you are not sure which rules apply to your license, our workers’ comp requirement check answers it by classification.
The two roofing class codes
California splits roofing into two classifications based on what you pay each worker per hour. Same work, same crew, different rate:
| Class code | Who goes in it | 2026 advisory rate per $100 payroll |
|---|---|---|
| 5552 Roofing, low wage | Workers paid below the hourly threshold | $20.83 |
| 5553 Roofing, high wage | Workers paid at or above the threshold | $12.11 |
Source: WCIRB California, approved September 1, 2026 advisory pure premium rates. These are benchmark loss costs, not quotes. Each carrier files its own rates on top of them, and your experience mod and the carrier’s credits or debits then adjust the result.
The $33 line
For policies that start on or after September 1, 2026, the roofing threshold is $33 an hour, up from $31. Payroll for a worker paid at or above $33 goes into 5553. Below $33, it goes into 5552. The threshold that applies is the one in effect when your policy starts, so a policy that began in August 2026 still uses $31 until it renews.
The gap is large enough to change hiring math. Take one roofer working 2,000 hours a year:
- At $32 an hour, payroll is $64,000 in code 5552. Benchmark premium: about $13,330.
- At $34 an hour, payroll is $68,000 in code 5553. Benchmark premium: about $8,240.
The better-paid worker costs roughly $5,000 a year less to insure, which more than covers the $4,000 raise. This is the most overlooked lever in roofing comp. It only works if your payroll records show each worker’s regular hourly rate clearly, because the auditor will assign anyone they cannot verify to the higher-rated code.
Where roofing premium gets lost at audit
Your premium is estimated when the policy starts and settled at the annual audit against actual payroll. Roofers get hit at audit in a few predictable ways:
- Wage records that don’t prove the split. If the register only shows gross pay, the auditor cannot confirm who cleared $33, and all of it can land in 5552.
- Uninsured subs. If a sub cannot produce a workers’ comp certificate for the period, their labor is usually added to your payroll at the roofing rate. Collect and track certificates before the job starts. Our guide to tracking sub compliance covers the system.
- Overtime. In California the overtime premium portion is generally excluded from rated payroll, but only if your records separate it.
- Office and estimating payroll. Clerical and outside sales staff belong in their own much lower-rated codes, not in roofing. Keep their time and duties documented.
What actually lowers a roofer’s comp cost
1. A clean experience mod
Once your premium is large enough to be experience rated, the mod multiplies everything. Frequent small claims move it more than a single large one, so a steady record of strains and falls from ladders costs more over time than most owners expect. Our experience mod guide explains the three-year window.
2. Written fall protection that is actually used
Carriers that like roofing ask for a written Injury and Illness Prevention Program, a fall protection plan, and evidence that crews use harnesses and guardrails. Documented safety programs are one of the few things that earn credits in a class this hard to place.
3. Matching the policy to your methods
Torch-down, hot mop and heat-weld work change how carriers view the risk. Say exactly how you install when you apply. A policy written for shingle work that later finds out about torch work is a problem at claim time or at audit.
4. Shopping the right markets
Many carriers avoid roofing entirely, and pricing swings widely between those that write it. A broker who places roofers regularly knows which A-rated carriers want the class and which ones quote it only to lose it.
Sources
- WCIRB California — approved September 1, 2026 advisory pure premium rates by classification (5552: 20.827; 5553: 12.112)
- WCIRB California — September 1, 2026 Regulatory Filing Quick Reference Guide (dual-wage thresholds)
- California Department of Insurance — 2026 advisory pure premium rate decision ($1.65 per $100 statewide average)
- CSLB — Workers’ Compensation requirements and exemption certificates
Common questions
Do roofers in California need workers’ comp if they have no employees?
Yes. C-39 Roofing licensees must carry workers’ compensation regardless of employees, and cannot use the CSLB no-employee exemption. A lapse in coverage suspends the license automatically.
What are the workers’ comp class codes for roofing in California?
Roofing is a dual-wage classification. Code 5552 covers workers paid below the hourly threshold and code 5553 covers workers paid at or above it. For policies starting on or after September 1, 2026, the threshold is $33 an hour.
How much is workers’ comp for roofers in California?
The WCIRB’s approved 2026 advisory pure premium rate is $20.83 per $100 of payroll for code 5552 and $12.11 for code 5553. Carriers file their own rates on top of these benchmarks, and the experience mod and carrier credits or debits adjust the final premium.
How can a roofing company lower its workers’ comp premium?
Keep payroll records that prove which workers are paid at or above the dual-wage threshold, collect workers’ comp certificates from every sub, maintain a written fall protection and injury prevention program, keep claims frequency down to protect the experience mod, and have a broker shop carriers that actively write roofing.
General guidance for California contractors, not legal advice. Your policy wording, CSLB record and payroll govern.