General Liability insurance protects construction companies from claims involving bodily injury, property damage, completed operations, and legal defense costs. But many contractors are surprised to learn that their premium isn’t finalized when the policy is issued.

Instead, most policies require an annual General Liability audit.

Understanding how these audits work can help contractors avoid unexpected bills and maintain accurate insurance coverage.

What Is a General Liability Insurance Audit?

A General Liability audit verifies that your company’s actual business activity matches the estimates used when your policy was issued.

Insurance companies commonly review:

• Gross receipts
• Payroll
• Subcontractor costs
• Business operations
• Job classifications

If your business grows during the year, your premium may increase.

If activity declines, you could receive a refund.

Documents You’ll Need

Prepare the following:

• Business tax returns
• Profit & Loss statement
• Balance sheet
• General Ledger
• Sales reports
• Payroll records
• Job costing reports
• 1099 forms
• Certificates of Insurance
• Contracts with subcontractors

Organized records make the audit faster and reduce disputes.

Gross Receipts Matter

Many General Liability policies are rated using gross receipts.

Example:

Estimated revenue:

$2,000,000

Actual revenue:

$3,500,000

If your rate is based on gross receipts, your insurer will adjust the premium to reflect the higher business volume.

This often results in additional premium due after the audit.

Subcontractor Costs

General contractors frequently hire:

• Roofing contractors
• Concrete contractors
• Electrical contractors
• HVAC companies
• Plumbing contractors
• Drywall installers

Insurance companies expect these subcontractors to carry their own General Liability insurance.

Always collect:

• Certificate of Insurance (COI)
• Policy expiration date
• Coverage limits
• Additional insured endorsements when required by contract

Missing documentation can increase your insurance premium because the insurer may treat the subcontractor’s work as additional exposure under your policy.

Common Audit Issues

Construction companies frequently encounter:

• Missing Certificates of Insurance
• Underreported revenue
• Incorrect subcontractor expenses
• Misclassified operations
• Unreported business activities
• Poor accounting records

Keeping accurate financial statements throughout the year minimizes these issues.

Best Practices

Successful contractors typically:

• Request Certificates of Insurance before work begins.
• Track expiration dates for subcontractor policies.
• Reconcile financial statements monthly.
• Separate labor costs from material costs.
• Maintain detailed job costing records.
• Review insurance classifications annually with their broker.

Frequently Asked Questions

Does every contractor receive a General Liability audit?

Many insurers perform annual audits, particularly for construction companies with fluctuating payroll, revenue, or subcontractor costs.

Can an audit lower my premium?

Yes. If your actual revenue or operations were less than estimated, your insurer may issue a premium refund.

What if I disagree with the audit?

You may request a review and provide supporting accounting records, contracts, or Certificates of Insurance to support your position.

Final Thoughts

General Liability audits are a standard part of managing risk in the construction industry. Contractors who maintain accurate accounting records, verify subcontractor insurance, and understand how premiums are calculated are better equipped to avoid costly surprises.

Working closely with your CPA, insurance broker, and accounting team throughout the year can help ensure that your audit reflects your business accurately—and that you only pay for the insurance exposure you actually have.