How to Lower Workers’ Compensation Costs for a Contracting Business

Workers’ compensation insurance is one of the most important protections a contracting business can carry, but it can also become a significant operating expense. Roofing companies, electricians, plumbers, HVAC contractors, remodelers, landscapers, and other trade businesses often pay higher rates because employees perform physically demanding work and face hazards that are less common in office-based industries.

The good news is that workers’ comp premiums are not completely outside your control. Contractors can often reduce long-term insurance costs by preventing injuries, correcting classification errors, maintaining accurate payroll records, managing claims promptly, and reviewing available policy options.

The goal should not be to buy the cheapest policy available. It should be to reduce the risks, claims, and rating problems that make coverage expensive in the first place.

What Determines Workers’ Compensation Costs?

Workers’ compensation premiums are commonly influenced by several factors:

• Employee payroll
• Workers’ compensation classification codes
• Rates assigned to those classifications
• The company’s claims history
• The experience modification factor, when applicable
• State-specific assessments and rating rules
• Policy credits, discounts, or surcharges
• The use of uninsured subcontractors
• Information discovered during the premium audit

A simplified premium calculation may look like this:

Payroll divided by $100 × classification rate × experience modification factor

Additional charges, credits, assessments, and policy adjustments may then be applied.

For example, a contracting company with $500,000 in payroll will generally pay more than an otherwise similar company with $250,000 in payroll. However, payroll alone does not determine the final cost. The type of work employees perform and the company’s loss history can have an equally important effect.

NCCI explains that experience rating compares an employer’s actual loss experience with the expected losses of similar businesses. The resulting modification factor can increase, decrease, or leave the workers’ comp premium unchanged.

1. Build a Contractor-Specific Safety Program

The most effective way to reduce workers’ compensation costs is to prevent employees from getting injured.

A general safety statement is not enough. Contractors need a written program that addresses the actual hazards employees face on jobsites. Depending on the trade, the program may cover:

• Fall protection
• Ladder and scaffold safety
• Electrical hazards
• Trenching and excavation
• Power tools and machinery
• Vehicle and equipment operation
• Material handling
• Personal protective equipment
• Respiratory hazards
• Silica, asbestos, or chemical exposure
• Heat stress and severe weather
• Housekeeping and jobsite access
• Emergency response procedures

OSHA identifies falls, struck-by incidents, electrocutions, and caught-in-or-between incidents as four major construction hazards. A contractor that focuses its training and inspections on these exposures may prevent some of the most serious injuries affecting construction workers.

Conduct Job Hazard Analyses

Before starting a project or unfamiliar task, identify:

1. The steps required to complete the work
2. The hazards associated with each step
3. The equipment or protective measures needed
4. The person responsible for controlling each hazard

A job hazard analysis does not need to be overly complicated. For a roofing project, it might address roof access, fall-protection anchor points, weather conditions, material staging, debris removal, and ground-level exclusion zones.

For an electrical contractor, it could address de-energization, lockout procedures, temporary power, damaged cords, testing equipment, and work near energized components.

Documenting these reviews also helps demonstrate that safety is part of the company’s operating process rather than a rule discussed only after an accident.

Hold Short, Regular Safety Meetings

Frequent toolbox talks can be more effective than one long annual meeting. Topics should reflect current work rather than generic safety messages.

A plumbing contractor preparing for excavation work might discuss trench protection. An HVAC company entering summer may focus on heat illness, attic access, lifting equipment, and electrical disconnects.

Employees should also be encouraged to report hazards without fear of punishment. Workers often recognize unsafe conditions before supervisors or owners see them.

OSHA states that effective safety and health programs can reduce injuries, workers’ compensation payments, medical expenses, lost productivity, and other accident-related costs.

2. Use the Correct Workers’ Comp Class Codes

Workers’ compensation rates vary substantially by classification because different jobs present different levels of risk. A clerical employee working exclusively in an office should not normally be rated the same way as a roofer, carpenter, or electrician working at customer locations.

Incorrect classifications can cause two different problems:

• The contractor may overpay throughout the policy term.
• The contractor may receive a large additional premium after the audit.

Review each classification code with your insurance agent or broker and provide an accurate description of your operations. Avoid describing the company only as a “general contractor” when employees perform specific trades.

Relevant details may include:

• The services the company provides
• Whether work is residential, commercial, or industrial
• Whether employees perform installation, repair, or new construction
• Whether work is completed above or below ground
• Whether employees use scaffolds, lifts, or heavy equipment
• Whether office employees visit jobsites
• Whether the business performs multiple trades

NCCI maintains classification codes and corresponding descriptions for workers’ compensation and employers’ liability insurance. Classification rules and available codes can vary by state.

Maintain Separate Payroll Records When Permitted

Some contracting businesses perform work that may fall under multiple classification codes. Separate payroll records can be critical when state rules permit payroll to be divided between classifications.

Records should clearly show:

• Employee name
• Hours worked
• Gross wages
• Jobsite or project
• Duties performed
• Classification assigned

Do not divide payroll based on estimates created at the end of the year. The records generally need to be maintained as work is performed.

If payroll cannot be separated properly, an auditor may assign all of an employee’s payroll to the higher-rated applicable classification. The exact treatment depends on the state and classification rules. New York’s workers’ compensation manual, for example, permits payroll division for certain construction operations when the employer’s original records clearly disclose the allocation.

3. Estimate Payroll Accurately

Workers’ comp policies are usually issued using estimated payroll. After the policy ends, the insurer audits the business and calculates the premium using actual exposure.

Underestimating payroll may reduce initial payments, but it does not usually reduce the total earned premium. Instead, the contractor may receive a large audit bill.

Overestimating payroll can create the opposite problem by tying up money in unnecessarily high payments throughout the year.

Review payroll projections whenever the business:

• Hires or lays off employees
• Wins a major project
• Expands into a new trade
• Opens a location in another state
• Uses temporary labor
• Experiences a seasonal slowdown
• Increases wages substantially

Ask the insurer whether payroll can be updated during the policy term. Some carriers offer payroll-reporting or pay-as-you-go options that adjust payments more frequently.

Pay-as-you-go billing may improve cash flow and reduce audit surprises, but it does not automatically reduce the underlying rate.

4. Prepare for the Workers’ Compensation Audit

The premium audit is not simply an administrative formality. It can uncover payroll, classification, ownership, subcontractor, and operational information that changes the final premium.

Before the audit, organize:

• Payroll journals
• Quarterly payroll reports
• Federal and state tax forms
• General ledgers
• Profit-and-loss statements
• Cash-disbursement records
• Certificates of insurance
• Subcontractor invoices
• Independent contractor agreements
• Overtime records
• Employee job descriptions
• Records showing payroll allocation by classification

Compare the auditor’s findings with your records. Look for employees placed in the wrong classification, subcontractors included despite having valid coverage, duplicated payroll, or payments that were incorrectly treated as employee remuneration.

Official rating rules may authorize insurers to review payroll, classifications, rates, experience modifications, and other records relevant to the policy.

Dispute errors promptly and provide supporting documents. Waiting until the additional premium is sent to collections can make the issue harder to resolve.

5. Verify Every Subcontractor’s Insurance

Uninsured subcontractors are a common source of unexpected workers’ comp costs for contracting businesses.

Before a subcontractor begins work, obtain a certificate of insurance showing active workers’ compensation coverage. Verify:

• The legal business name
• Policy number
• Effective and expiration dates
• Insurance company
• Workers’ compensation coverage
• Relevant state coverage
• Any required limits or endorsements

Track expiration dates and request renewed certificates before the policy expires.

A certificate should not be treated as proof that a worker is automatically an independent contractor. Worker classification depends on state law and the actual working relationship. However, failing to obtain valid insurance documentation may cause subcontractor payments to be included in the hiring contractor’s workers’ comp exposure during an audit.

Maintain written subcontractor agreements, invoices, certificates, and evidence that the subcontractor operates an independent business.

6. Report Workplace Injuries Immediately

Delaying a claim can increase costs.

Employees should know:

• Who must be notified
• How to report the injury
• Where to obtain initial medical care
• How to report an emergency after business hours
• Which forms or information are required

Once notified, the employer should contact the insurance carrier promptly and document the basic facts. Early reporting allows the claims administrator to investigate the incident, coordinate appropriate treatment, and communicate with the injured employee.

Delayed reporting can result in:

• Delayed medical treatment
• More complicated injuries
• Confusion about how the accident occurred
• Missed opportunities for modified work
• Longer disability periods
• Increased legal involvement
• Higher claim reserves

Reporting an injury does not mean admitting fault. It begins the claim process and gives the insurer an opportunity to respond.

7. Create a Return-to-Work Program

An injured employee may be unable to resume full duties but still capable of performing modified work. A return-to-work program provides temporary tasks that comply with the treating medical provider’s restrictions.

Possible modified duties for a contractor may include:

• Preparing job files
• Conducting inventory
• Organizing tools
• Coordinating schedules
• Updating safety records
• Completing training
• Performing customer follow-ups
• Assisting with estimates
• Inspecting equipment from a safe location
• Supporting office operations

Modified work should be productive, medically appropriate, and clearly documented. Employers should never pressure an injured worker to perform duties that exceed medical restrictions.

Returning an employee to suitable work may reduce lost-time benefits, preserve the employment relationship, and help the worker transition back to regular duties. California’s Division of Workers’ Compensation, for example, recognizes regular, modified, and alternative work based on the injured employee’s medical abilities.

8. Review Open Claims and Reserves

A claim does not stop affecting insurance costs simply because the accident occurred months ago.

Meet periodically with the insurer or claims administrator to review open claims. Discuss:

• Current medical status
• Work restrictions
• Expected return-to-work date
• Available modified duties
• Outstanding treatment
• Litigation status
• Claim reserves
• Opportunities for closure

Reserves are estimates of the claim’s future cost. Because experience rating may use incurred losses rather than only amounts already paid, inaccurate or outdated reserves can affect the contractor’s loss history.

Employers should not attempt to interfere with legitimate medical treatment or pressure adjusters to close valid claims. The goal is to make sure each claim is being managed actively and that the information used to estimate its cost remains current.

9. Check the Experience Modification Worksheet

Contractors that qualify for experience rating should obtain a copy of their experience modification worksheet each year.

Review it for:

• Claims that do not belong to the company
• Duplicate claims
• Incorrect payroll
• Wrong classification codes
• Claims showing outdated values
• Ownership information that was not updated
• Experience improperly transferred after a business change

An experience modification of 1.00 generally represents the expected level for a comparable employer. A factor above 1.00 may increase premium, while a factor below 1.00 may reduce it, subject to state rules and policy calculations.

For example, a 1.20 modification suggests loss experience worse than expected and may increase the experience-rated portion of premium. NCCI describes a 1.20 factor as a prediction that future loss experience will be approximately 20% worse than the average employer in the same classification.

Correcting an experience rating error can produce immediate savings, but improvements in safety and claim performance generally take time to affect future calculations.

10. Ask About Contractor-Specific Credits and Policy Options

Available discounts and rating programs vary by state and insurer. Ask a knowledgeable insurance professional about:

• Contractor premium adjustment programs
• Workplace safety credits
• Drug-free workplace credits
• Group insurance programs
• Association programs
• Deductible options
• Dividend plans
• Retrospective rating
• Loss-sensitive programs
• Experience-rating eligibility
• State-specific owner exclusions

Some states use a Contracting Classification Premium Adjustment Program, commonly called CCPAP, to provide eligible contractors with a premium credit based partly on average hourly wages. NCCI describes CCPAP as a state-approved program that may reduce premium for qualifying employers using contracting classification codes.

Not every discount is appropriate for every contractor. A deductible or loss-sensitive program may reduce upfront premium but increase the company’s financial responsibility after claims. Evaluate the maximum possible cost, not only the initial quote.

11. Compare Insurance Carriers Carefully

Workers’ compensation rates and available credits may differ between insurers, even when policies are based on similar classifications and payroll.

When comparing quotes, make sure each insurer uses the same:

• Payroll estimates
• Classification codes
• States of operation
• Ownership information
• Experience modification factor
• Deductible
• Policy limits
• Included endorsements

Also compare services such as:

• Claims responsiveness
• Medical provider networks
• Safety consultations
• Online reporting
• Return-to-work assistance
• Premium audit support
• Risk-control resources

A slightly higher initial quote from an insurer with stronger claims management and safety support may cost less over time than a cheaper policy that allows claims to remain open or poorly managed.

Workers’ Comp Cost-Reduction Checklist

Action	Potential Benefit
Create a written safety program	Reduces the frequency and severity of injuries
Train employees regularly	Improves hazard recognition and safe work practices
Verify class codes	Prevents overcharges and audit corrections
Maintain detailed payroll records	Supports lower-rated classifications when allowed
Update payroll estimates	Reduces unexpected audit balances
Collect subcontractor certificates	Helps avoid uninsured subcontractor exposure
Report injuries promptly	Supports faster treatment and claim control
Offer modified work	May shorten lost-time claims
Review open claims	Keeps reserves and claim information current
Check the experience mod	Identifies rating and loss-data errors
Compare carrier programs	May uncover credits or better risk-control services

Frequently Asked Questions

What Is the Fastest Way to Lower Workers’ Comp Costs?

Correcting classification, payroll, audit, or experience-rating errors may create the fastest savings. However, the most sustainable strategy is reducing injuries through safety training, hazard control, prompt reporting, and return-to-work planning.

Does Pay-As-You-Go Workers’ Comp Reduce Premiums?

Pay-as-you-go billing usually improves payment accuracy and cash flow rather than reducing the underlying insurance rate. Premium is still based on payroll, classifications, claims experience, and applicable rating factors.

Can Hiring Independent Contractors Lower Workers’ Comp Costs?

Using legitimate insured subcontractors may reduce employee payroll exposure, but misclassifying employees as independent contractors can create audit charges, penalties, and uninsured claims. Contractor status must be supported by the actual working relationship and applicable state law.

Can a Contractor Change Workers’ Comp Class Codes?

A contractor can request a classification review when a code does not accurately describe the business. The final classification must follow the rating rules approved in the applicable state.

How Long Does a Workers’ Comp Claim Affect Premiums?

Claims may affect experience rating for multiple policy periods. The exact experience period and calculation method depend on the state, rating organization, and employer’s eligibility.

Should a Contractor Choose a High Deductible?

A higher deductible may reduce premium, but the company must be able to pay its share of claims. Contractors with unstable cash flow or frequent injuries may face greater financial risk under a high-deductible plan.

Conclusion

Lowering workers’ compensation costs requires more than requesting cheaper quotes each year. Contractors need to address the factors that drive premiums: injuries, classifications, payroll, subcontractor exposure, claims management, audits, and experience rating.

Start by reviewing your current policy and loss history with a licensed insurance professional who understands construction and contractor risks. Then build a practical safety and claims-management plan that supervisors and employees can follow on every jobsite.

Reducing workers’ comp costs is usually a long-term process, but each prevented injury protects employees, improves productivity, and strengthens the contracting business.

Editorial review: This guide was researched and reviewed by the Coverage Editorial Team using government agencies, insurance regulators, licensing authorities, policy documentation, and current industry pricing sources.