California Contractors Face Important Workers’ Comp Changes September 1, 2026
Schedule a Review Today

California Workers’ Comp Changes for Contractors in 2026

California contractors with workers’ compensation policies beginning or renewing on or after September 1, 2026, should prepare for two important changes:


  1. California’s average advisory pure premium rate is increasing.
  2. Hourly wage thresholds are rising for many dual-wage construction classifications.


These changes will not affect every contractor in the same way. However, certain plumbing, HVAC, electrical, roofing, painting, carpentry and excavation contractors could experience meaningful premium increases even if their payroll and claims history have not changed.


California’s Workers’ Comp Benchmark Is Increasing 6.6%


The California Insurance Commissioner adopted an average advisory pure premium rate of $1.65 per $100 of payroll, effective September 1, 2026. That is 6.6% higher than the average rate approved for 2025, although it is below the 10.4% increase originally requested by the Workers’ Compensation Insurance Rating Bureau of California.


The increase reflects several pressures within California’s workers’ compensation system, including:

  • Higher medical costs
  • Increasing cumulative-trauma claim frequency
  • Higher expenses associated with adjusting and managing claims


It is important to understand that this does not mean every contractor’s workers’ compensation premium will automatically increase by 6.6%.


California’s pure premium rates are advisory benchmarks. Individual insurance companies establish their own rates, and a contractor’s actual premium will also depend on factors such as:

  • Employee classifications
  • Estimated payroll
  • Claims history
  • Experience modification, or X-Mod
  • Carrier pricing and underwriting appetite
  • Schedule credits or debits
  • Changes in operations


The statewide increase nevertheless gives insurance carriers additional actuarial support for firmer pricing, particularly in construction classes with significant injury exposure or unfavorable loss trends.


Dual-Wage Thresholds Are Also Increasing


California uses dual-wage classifications for many construction trades. Employees who earn at or above a designated hourly threshold may qualify for a higher-wage classification that generally carries a lower workers’ compensation rate.


Employees paid below the threshold are assigned to the corresponding lower-wage classification, which can be considerably more expensive.


Beginning September 1, 2026, many of these thresholds will increase:



Construction trade Current threshold New threshold
Plumbing, refrigeration and HVAC equipment $32 $35
Electrical wiring $36 $40
Automatic sprinkler installation $33 $36
Concrete or cement work $33 $36
Carpentry $41 $46
Painting and waterproofing $32 $36
Roofing $31 $33
Excavation, grading and land leveling $40 $45
Steel framing $41 $46
HVAC ductwork and sheet metal $33 $37

The classification details matter. For example, HVAC equipment work generally falls within the $35 threshold, while qualifying HVAC ductwork or sheet-metal operations may be subject to the separate $37 threshold.


Contractors should review the exact classifications appearing on their policies instead of relying only on a general trade description.


How the New Threshold Can Increase Premium


Consider a carpenter earning $43 per hour.


Under the existing $41 threshold, that employee may qualify for the higher-wage carpentry classification. For a workers’ compensation policy effective September 1, 2026, the threshold increases to $46. If the employee continues earning $43 per hour, that employee’s payroll may move into the more expensive lower-wage classification.


Nothing changed about the employee’s job. The contractor did not add payroll or have a new claim. Nevertheless, the classification change alone could produce a substantial premium increase.


This is why contractors should not evaluate their renewal based only on the carrier’s overall rate change.


Should Contractors Increase Employee Wages?


For employees sitting just below a new threshold, it may be worth comparing the cost of a wage increase with the potential workers’ compensation savings associated with the higher-wage classification.


That does not mean every contractor should automatically increase wages to meet the threshold. The calculation should consider:

  • The difference between the applicable class rates
  • The employee’s annual hours
  • The contractor’s X-Mod
  • Payroll taxes and other wage-related costs
  • The carrier’s actual filed rates
  • Whether the employee consistently meets the wage requirement
  • Payroll and timekeeping documentation


A legitimate wage adjustment can sometimes reduce the contractor’s total employment cost, but the numbers should be calculated before making a decision.


Documentation Will Be Critical at Audit


Contractors using dual-wage classifications must be able to support the division of payroll during the insurance company’s final audit.


Before renewal, contractors should make sure their payroll records clearly identify:

  • Each employee
  • Hours worked
  • Hourly wage
  • Type of work performed
  • Applicable construction classification
  • Overtime and other compensation
  • Work divided among different trades or operations


Reporting only total company payroll may not be sufficient to support the higher-wage classification. Incomplete records can result in payroll being reassigned to the more expensive classification during an audit.


The X-Mod Eligibility Threshold Is Changing Too


California’s experience-rating eligibility threshold will increase from $10,800 to $11,700 in qualifying premium beginning September 1, 2026.


This means some smaller contractors may move into or out of experience rating depending on their qualifying premium. Contractors already subject to an X-Mod should also review open claims and loss information well before renewal, since incorrect reserves or claim data can affect their modification and overall premium.


What California Contractors Should Do Now


Contractors with September 2026 or later renewals should begin reviewing their workers’ compensation program early.


Recommended steps include:

  1. Obtain payroll by employee, hourly wage and trade.
  2. Identify employees who fall between the current and new wage thresholds.
  3. Confirm that the policy uses the correct construction classifications.
  4. Review open claims and current loss runs.
  5. Estimate the effect of the new thresholds before the carrier issues the renewal.
  6. Compare multiple carriers when pricing or underwriting appetite changes materially.
  7. Maintain complete payroll and timekeeping records for the final audit.


Waiting until the renewal proposal arrives may leave too little time to correct classifications, address claim issues or evaluate alternative carriers.


Prepare Before Your Next Renewal


The September 1 changes do not guarantee that every California contractor’s workers’ compensation premium will increase. They do, however, create multiple ways for premiums to move higher.


For contractors subject to dual-wage classifications, the new wage thresholds may have an even greater impact than the statewide advisory rate increase.


Contractor Insurance Pro helps California contractors review classifications, payroll reporting, X-Mods and available carrier options before renewal. If your workers’ compensation policy renews on or after September 1, 2026, contact us for a contractor-specific coverage and premium review.


This article is for general informational purposes and does not constitute legal, payroll or insurance coverage advice. Classification and rating decisions depend on the contractor’s operations, records, policy terms and insurance carrier.


Sources: California Department of Insurance rate announcement and WCIRB September 1, 2026 regulatory guide.


Speak with us today!

We can help you with any of your contractor insurance needs!

Latest Posts

construction workers reviewing plans for pool
by Behr 25 August 2026
Pool builders often subcontract excavation, plumbing, electrical, gunite, and decking. Learn how that can affect insurance, claims, and audits.
Texas construction superintendent reviewing project plans at a commercial jobsite with workers weari
by Behr 25 August 2026
Texas adopted new workers’ compensation loss costs effective July 1, 2026. Learn what the 3.8% average decrease may—and may not—mean for contractors.
by Behr 27 May 2026
Mike’s a plumber in Palm Springs. We’d never worked together. He called me out of the blue one day because his longtime broker had just sold his book of business, and the service level fell off a cliff. Nobody was walking him through his claims, and his workers’ comp mod kept creeping higher. On the phone he said, “My workers’ comp mod keeps going up. We’re not a circus. We run a good shop. What am I missing?” We pulled his claims. Same pattern over and over. A guy tweaks his back, strains a shoulder, twists a knee. Mike sends him home to “rest up.” No light duty. No modified role. Just the couch and every Netflix binge imaginable. When that happens, the insurance company doesn’t just pay doctor bills. They start sending that worker checks to replace part of their paycheck while they’re off the job. That’s what really drives the cost of the claim up and pushes your mod higher for years. The medical bills weren’t killing Mike. Paying people to sit at home and watch Netflix and order DoorDash was. Here’s the part most owners never get told plainly. Insurance companies don’t “eat” those costs. They finance them back to you through higher premiums over several years. For every dollar that goes out on a claim, you can easily end up paying two, three, even five dollars back in future premium once your experience mod and rating catch up. That’s exactly what a light duty program is built to stop. You keep the doctor in charge of restrictions. You keep the employee on the job in a safer, easier role. You keep those “you’re not working” checks from dragging on for weeks or months. Same injury. Same medical treatment. Totally different impact on what you pay for workers’ comp. If you don’t have light duty in place, you’re paying for problems you don’t need to have. What a light duty program actually is: A light duty program is a clear, written expectation that: If someone gets hurt, and the doctor says they can work with limits, you will bring them back in a safe, modified role instead of sending them home. For a contractor, that might look like: Shop operations: stocking, inventory, tool control, basic QC Field support: photos, documentation, measurements, punch list follow up Safety and fleet: vehicle checks, ladder checks, PPE, simple reporting You’re not inventing busywork. You’re designing real roles that fit restrictions. And when you keep that paycheck on your own payroll instead of handing it to the insurance company to pay as “time off,” you’re not signing up for the most expensive financing arrangement in your business. Five moves to set up a real light duty protocol. Here’s how you put this in place without turning it into a 20 page HR project. 1) Put your stance in writing Decide what you actually believe and make it your standard: “Our default is work, not the couch. If a doctor says an employee can work with restrictions, we will provide safe, modified work that fits those restrictions.” 2) Create 2–3 defined light duty roles Don’t rely on random chores. Build actual roles you can plug people into, like Shop Operations, Field Support, and Safety and Fleet. Each role should have a short list of tasks that can be dialed up or down based on restrictions. 3) Get your clinic aligned with reality Call your preferred clinic and have an adult conversation. Tell them you have real light duty roles. Ask them to give clear restrictions instead of blanket “off work” notes. Make it clear your goal is safe return to work, not cutting corners. If they can’t work with that, you’ve just found a problem bigger than any single claim. 4) Lock in your leadership, not just your crew Foremen and supers can quietly kill light duty if they see it as babysitting. Set the expectation: Light duty is not optional when it’s medically appropriate. Modified duty workers are still part of the team. If there’s a problem, it comes to you, not through sarcasm on the jobsite. 5) Build a one page day of injury playbook The worst time to design a process is in the parking lot after someone gets hurt. Pre decide: Where they go for treatment. Who sends the clinic your light duty roles. Who receives the restrictions and assigns the modified role that same day. One page. Clear steps. No improvising. If this hits a little too close to home, that’s exactly the point. Mike didn’t call me because everything was on fire. He called because his broker sold the book, the service disappeared, and nobody was helping him connect the dots between “no light duty” and a mod that was quietly draining profit. I spend my days in the middle of this: mods, claims, and the quiet ways workers’ comp bleeds margin from good contractors. If you want a second set of eyes on your setup or a light duty plan that actually fits your crew, this is the part I’m very good at. -John Gustafson Call or text me today at (559) 285 3246.
by Behr 23 March 2026
California Workers' Comp Rates Just Went Up for the First Time in a Decade. Here's What Contractors Need to Know.
Man reviewing documents at a desk, construction site visible. White hard hat, laptop, and blueprints present.
by Behr 2 February 2026
Many contractors are surprised by how much a single claim can affect their insurance costs and options. Learn why it happens and how risk management reduces long-term impact.
by Behr 2 February 2026
As a contractor, you’re used to managing overhead, but nothing is quite as frustrating as an unexpected bill after a Workers' Comp Audit. We recently helped one of our plumbing clients navigate a complex audit dispute. The initial result was an additional premium bill of $10,220.38. By the time we were finished fighting for them, that bill was lowered by $9,140! Here is how it happened and how you can prevent the same thing from happening to your business. The "Highest Rate" Trap During the audit, the insurance carrier moved all of the client's payroll to a secondary location that carried significantly higher rates. When we asked why, the auditor’s response was simple: since they didn't have specific employee locations, they defaulted everything to the location with the highest rate. The Reality: Standard industry rules (such as those from the WCIRB) state that payroll should be assigned to the location from which employees are actually dispatched or report for work. It shouldn't be based on which location is the most expensive for the carrier. The "CEO in the Field" Error Another common mistake we found was that the auditor had classified the company's CEO as a field worker. Despite the client explaining multiple times that the CEO only worked in the office, the auditor didn't make the change until we intervened. Moving an executive from a "Plumbing" class code (high risk) to a "Clerical" class code (low risk) can save thousands of dollars in premium. How We Won the Dispute Fighting an audit takes more than just a phone call. It requires persistence and technical knowledge. To get the audit revised, we: Challenged the Auditor: We cited specific industry guidance regarding payroll allocation. Provided Granular Data: We worked with the client to pull specific reports from their payroll system to prove exactly where work was being performed. Escalated the Issue: When the auditor initially refused to budge, we took the fight to the underwriting team and the audit dispute department. The Result The carrier finally admitted the error and confirmed the audit was being revised. The client's additional premium was slashed, saving them $9,140. Don’t Just Pay the Bill If you just received a "Final Audit" notice with a large balance due, don't assume the auditor is right. Auditors are human, and they often default to the highest possible cost for the insured when data is unclear. At Contractor Insurance Pros , we don't just sell you a policy and disappear. We are your partners during the audit process to ensure you only pay exactly what you owe. Want us to take a second look at your last audit?
A professional graphic for ContractorInsPro featuring a collage of plumbing pipes, electrical wiring
by Behr 21 January 2026
Stop treating insurance as just a bill. Learn how plumbing, electrical, and HVAC contractors use the 'Cost of Risk' metric to lower expenses and increase net income. Read more at ContractorInsPro.
A general contractor in a hard hat and safety vest on a construction site, looking at a tablet that
by Behr 15 January 2026
Discover Q4 2025 insurance trends for contractors. Learn how property values, liability risks, and new EPL claims will impact your 2026 renewals.
How to Get Proof of Insurance as a General Contractor
by jbehr 21 November 2025
Contractor Insurance Pros helps general contractors secure and manage proof of insurance, stay compliant, and protect their business nationwide.
Insurance Requirements for General Contractors Explained
by jbehr 21 November 2025
Protect your construction business with the right insurance. General, professional, workers’ comp & builder’s risk coverage explained.
Show More
construction workers reviewing plans for pool
by Behr 25 August 2026
Pool builders often subcontract excavation, plumbing, electrical, gunite, and decking. Learn how that can affect insurance, claims, and audits.
Texas construction superintendent reviewing project plans at a commercial jobsite with workers weari
by Behr 25 August 2026
Texas adopted new workers’ compensation loss costs effective July 1, 2026. Learn what the 3.8% average decrease may—and may not—mean for contractors.
by Behr 27 May 2026
Mike’s a plumber in Palm Springs. We’d never worked together. He called me out of the blue one day because his longtime broker had just sold his book of business, and the service level fell off a cliff. Nobody was walking him through his claims, and his workers’ comp mod kept creeping higher. On the phone he said, “My workers’ comp mod keeps going up. We’re not a circus. We run a good shop. What am I missing?” We pulled his claims. Same pattern over and over. A guy tweaks his back, strains a shoulder, twists a knee. Mike sends him home to “rest up.” No light duty. No modified role. Just the couch and every Netflix binge imaginable. When that happens, the insurance company doesn’t just pay doctor bills. They start sending that worker checks to replace part of their paycheck while they’re off the job. That’s what really drives the cost of the claim up and pushes your mod higher for years. The medical bills weren’t killing Mike. Paying people to sit at home and watch Netflix and order DoorDash was. Here’s the part most owners never get told plainly. Insurance companies don’t “eat” those costs. They finance them back to you through higher premiums over several years. For every dollar that goes out on a claim, you can easily end up paying two, three, even five dollars back in future premium once your experience mod and rating catch up. That’s exactly what a light duty program is built to stop. You keep the doctor in charge of restrictions. You keep the employee on the job in a safer, easier role. You keep those “you’re not working” checks from dragging on for weeks or months. Same injury. Same medical treatment. Totally different impact on what you pay for workers’ comp. If you don’t have light duty in place, you’re paying for problems you don’t need to have. What a light duty program actually is: A light duty program is a clear, written expectation that: If someone gets hurt, and the doctor says they can work with limits, you will bring them back in a safe, modified role instead of sending them home. For a contractor, that might look like: Shop operations: stocking, inventory, tool control, basic QC Field support: photos, documentation, measurements, punch list follow up Safety and fleet: vehicle checks, ladder checks, PPE, simple reporting You’re not inventing busywork. You’re designing real roles that fit restrictions. And when you keep that paycheck on your own payroll instead of handing it to the insurance company to pay as “time off,” you’re not signing up for the most expensive financing arrangement in your business. Five moves to set up a real light duty protocol. Here’s how you put this in place without turning it into a 20 page HR project. 1) Put your stance in writing Decide what you actually believe and make it your standard: “Our default is work, not the couch. If a doctor says an employee can work with restrictions, we will provide safe, modified work that fits those restrictions.” 2) Create 2–3 defined light duty roles Don’t rely on random chores. Build actual roles you can plug people into, like Shop Operations, Field Support, and Safety and Fleet. Each role should have a short list of tasks that can be dialed up or down based on restrictions. 3) Get your clinic aligned with reality Call your preferred clinic and have an adult conversation. Tell them you have real light duty roles. Ask them to give clear restrictions instead of blanket “off work” notes. Make it clear your goal is safe return to work, not cutting corners. If they can’t work with that, you’ve just found a problem bigger than any single claim. 4) Lock in your leadership, not just your crew Foremen and supers can quietly kill light duty if they see it as babysitting. Set the expectation: Light duty is not optional when it’s medically appropriate. Modified duty workers are still part of the team. If there’s a problem, it comes to you, not through sarcasm on the jobsite. 5) Build a one page day of injury playbook The worst time to design a process is in the parking lot after someone gets hurt. Pre decide: Where they go for treatment. Who sends the clinic your light duty roles. Who receives the restrictions and assigns the modified role that same day. One page. Clear steps. No improvising. If this hits a little too close to home, that’s exactly the point. Mike didn’t call me because everything was on fire. He called because his broker sold the book, the service disappeared, and nobody was helping him connect the dots between “no light duty” and a mod that was quietly draining profit. I spend my days in the middle of this: mods, claims, and the quiet ways workers’ comp bleeds margin from good contractors. If you want a second set of eyes on your setup or a light duty plan that actually fits your crew, this is the part I’m very good at. -John Gustafson Call or text me today at (559) 285 3246.
by Behr 23 March 2026
California Workers' Comp Rates Just Went Up for the First Time in a Decade. Here's What Contractors Need to Know.
Man reviewing documents at a desk, construction site visible. White hard hat, laptop, and blueprints present.
by Behr 2 February 2026
Many contractors are surprised by how much a single claim can affect their insurance costs and options. Learn why it happens and how risk management reduces long-term impact.
by Behr 2 February 2026
As a contractor, you’re used to managing overhead, but nothing is quite as frustrating as an unexpected bill after a Workers' Comp Audit. We recently helped one of our plumbing clients navigate a complex audit dispute. The initial result was an additional premium bill of $10,220.38. By the time we were finished fighting for them, that bill was lowered by $9,140! Here is how it happened and how you can prevent the same thing from happening to your business. The "Highest Rate" Trap During the audit, the insurance carrier moved all of the client's payroll to a secondary location that carried significantly higher rates. When we asked why, the auditor’s response was simple: since they didn't have specific employee locations, they defaulted everything to the location with the highest rate. The Reality: Standard industry rules (such as those from the WCIRB) state that payroll should be assigned to the location from which employees are actually dispatched or report for work. It shouldn't be based on which location is the most expensive for the carrier. The "CEO in the Field" Error Another common mistake we found was that the auditor had classified the company's CEO as a field worker. Despite the client explaining multiple times that the CEO only worked in the office, the auditor didn't make the change until we intervened. Moving an executive from a "Plumbing" class code (high risk) to a "Clerical" class code (low risk) can save thousands of dollars in premium. How We Won the Dispute Fighting an audit takes more than just a phone call. It requires persistence and technical knowledge. To get the audit revised, we: Challenged the Auditor: We cited specific industry guidance regarding payroll allocation. Provided Granular Data: We worked with the client to pull specific reports from their payroll system to prove exactly where work was being performed. Escalated the Issue: When the auditor initially refused to budge, we took the fight to the underwriting team and the audit dispute department. The Result The carrier finally admitted the error and confirmed the audit was being revised. The client's additional premium was slashed, saving them $9,140. Don’t Just Pay the Bill If you just received a "Final Audit" notice with a large balance due, don't assume the auditor is right. Auditors are human, and they often default to the highest possible cost for the insured when data is unclear. At Contractor Insurance Pros , we don't just sell you a policy and disappear. We are your partners during the audit process to ensure you only pay exactly what you owe. Want us to take a second look at your last audit?
A professional graphic for ContractorInsPro featuring a collage of plumbing pipes, electrical wiring
by Behr 21 January 2026
Stop treating insurance as just a bill. Learn how plumbing, electrical, and HVAC contractors use the 'Cost of Risk' metric to lower expenses and increase net income. Read more at ContractorInsPro.
A general contractor in a hard hat and safety vest on a construction site, looking at a tablet that
by Behr 15 January 2026
Discover Q4 2025 insurance trends for contractors. Learn how property values, liability risks, and new EPL claims will impact your 2026 renewals.
How to Get Proof of Insurance as a General Contractor
by jbehr 21 November 2025
Contractor Insurance Pros helps general contractors secure and manage proof of insurance, stay compliant, and protect their business nationwide.
Insurance Requirements for General Contractors Explained
by jbehr 21 November 2025
Protect your construction business with the right insurance. General, professional, workers’ comp & builder’s risk coverage explained.