Compliance

Contractor Insurance Costs: How to Account for GL, WC and Builder's Risk

Scaffold Bookkeeping• 7 min read•March 6, 2026

Quick Answer

Learn the GAAP compliant methods for accounting for General Liability, Workers' Comp, and Builder's Risk insurance in construction to ensure accurate job costing and successful audits.

Quick Answer: Contractor Insurance Costs: How to Account for GL, WC and Builder's Risk

Quick Answer: For construction contractors, insurance premiums are accounted for based on their nature: General Liability (GL) is typically an indirect cost allocated across projects, Workers’ Compensation (WC) is a direct labor burden, and Builder’s Risk is a direct job cost. Under GAAP (ASC 606), these must be matched to the periods or contracts they benefit through accrual accounting, rather than being expensed solely when paid.

How does GAAP require contractors to account for insurance premiums?

Under Generally Accepted Accounting Principles (GAAP), specifically ASC 606 (Revenue from Contracts with Customers), insurance costs associated with a specific project are considered costs of fulfilling a contract. These costs must be recognized as they are incurred to reflect the true progress of the project. (Source: Washington State L&I - Contractor Registration)

For annual premiums paid upfront, the payments must initially be recorded as a "Prepaid Expense" on the balance sheet. As time passes or job progress is made, these assets are amortized (moved from the balance sheet to the income statement). This prevents a massive expense spike in one month that would distort the net income and the calculation of the percentage of completion. (Source: FASB ASC, Section 340-40-25)

How do you account for General Liability (GL) Insurance?

General Liability (GL) insurance is often treated as an indirect cost or "overhead" because it covers the company's broad exposure rather than a single specific project. However, to maintain accurate job costing, many contractors allocate GL costs to specific jobs based on a percentage of contract value or labor hours.

Initial Recognition: When the annual premium is paid, debit Prepaid Insurance and credit Cash.

Monthly Allocation: Each month, a portion of the premium is moved to the income statement. (Source: FASB ASC, Section 720-15)

Audit Adjustments: GL policies are usually subject to annual audits where the final premium is based on actual revenue or payroll. According to FASB, contractors must estimate and accrue for these potential audit premiums if a liability is probable and can be reasonably estimated. (Source: FASB ASC, Section 450-20-25-2)

What is the proper accounting for Workers’ Compensation (WC)?

Workers’ Compensation is fundamentally a "Labor Burden." In construction accounting, it is most accurate to record WC as a direct cost tied to the specific labor hours worked on a project.

Under Washington State law, industrial insurance (WC) premiums are calculated based on worker hours and specific risk classes. (Source: RCW, Section 51.16.035)

As a Direct Cost: For every dollar of field labor spent on "Job A," the associated WC premium should be charged to "Job A." This provides a true "Gross Profit" figure for that specific project.

The Labor Burden Rate: Most sophisticated contractors calculate a "Burden Rate" that includes WC, FUTA/SUTA, and FICA, applying it automatically to every labor hour in the accounting system. (Source: IRS Publication, 535 Chapter 2)

How should Builder’s Risk insurance be handled?

Unlike GL or WC, Builder’s Risk insurance is typically project-specific. It covers the physical structure during construction against hazards like fire, wind, or theft.

Because this cost is incurred solely for a specific contract, it is a Direct Job Cost. (Source: AIA Document, A201-2017 Section 11.3)

Accounting Treatment: The cost of the Builder's Risk policy should be coded directly to the specific Job ID in the General Ledger. If the owner provides this insurance, the contractor does not record it, though they should note the coverage limits in the project file.

Reimbursement: If the contract allows for the reimbursement of insurance costs, these must be handled in accordance with the revenue recognition standards for "Contract Costs." (Source: FASB ASC, Section 606-10-32-5)

How do you account for Self-Insured Retentions (SIR) and Deductibles?

Many large contractors use high deductibles or Self-Insured Retentions (SIR). According to GAAP, a liability for these unpaid claims (including "Incurred But Not Reported" or IBNR claims) must be accrued if it is probable that a liability has been incurred at the date of the financial statements. (Source: FASB ASC, Section 450-20-25-2)

If a contractor is a "Self-Insurer" for certain risks, they cannot simply record expenses as they pay claims; they must estimate the total loss and record it when the loss occurs.

What are the tax implications of insurance premiums?

For federal tax purposes, the IRS generally allows the deduction of ordinary and necessary insurance premiums as business expenses. (Source: IRC, Section 162)

However, there are restrictions on "Prepaid Expenses." If an insurance premium creates an asset having a useful life extending substantially beyond the close of the taxable year, the cost may not be deductible in full in the year of payment; it must be capitalized and deducted over the period to which it relates. (Source: 26 CFR, Section 1.263(a)-4)

How do audits impact the financial statements?

Construction insurance is rarely "fixed." At the end of a policy term, the insurer performs a "Premium Audit." If your revenue or payroll was higher than estimated, you will owe an additional premium.

Accrual of Audit Liability: Contractors should look at their actual payroll vs. estimated payroll quarterly. If the actuals are higher, an accrual entry should be made: Debit Insurance Expense, Credit Accrued Liabilities. (Source: FASB ASC, Section 450-20)

Washington State Specifics: In Washington, L&I premium rates change annually. Contractors must ensure they are using the correct "Risk Class" to avoid penalties and under-accruing for labor burden. (Source: WAC, Section 296-17-31002)

Bottom Line

Accounting for contractor insurance is not as simple as recording a check. To maintain compliance with GAAP (ASC 606) and satisfy surety bond underwriters, GL must be amortized, WC must be treated as a labor burden, and Builder’s Risk must be coded as a direct job cost. Proper accrual of audit premiums ensures that your profitability isn't suddenly wiped out by a year-end insurance bill.

Sources

FASB ASC 606: Revenue from Contracts with Customers.

FASB ASC 450-20: Loss Contingencies.

FASB ASC 720-15: Other Expenses - Insurance Costs.

IRC Section 162: Trade or Business Expenses.

RCW 51.16.035: WA State Industrial Insurance Classifications and Rates.

WAC 296-17-31002: WA General Reporting Rules for Industrial Insurance.

AIA A201-2017: General Conditions of the Contract for Construction.

What Are the Key Requirements for Contractor Insurance Costs?

This is a critical consideration for construction contractors. Proper management ensures financial accuracy, regulatory compliance, and better project outcomes. Consult with a specialized construction bookkeeper to implement best practices for your specific situation.

How Does This Impact Your Construction Business?

What Are Common Mistakes to Avoid?

How Can Contractors Stay Compliant?

What Tools and Resources Are Available?

Employee vs. Independent Contractor: Classification Guide for Construction

Percentage of Completion Accounting for Contractors

OSHA Recordkeeping Requirements for Construction Companies

What Are the Financial Implications of Contractor Insurance Costs for Contractors?

The financial impact of contractor insurance costs extends far beyond simple compliance. For general contractors and subcontractors alike, proper management directly affects cash flow, bonding capacity, and overall project profitability. According to the Construction Financial Management Association (CFMA), companies that implement rigorous financial controls see an average 15-20% improvement in project margins (Source: CFMA, Annual Financial Survey of the Construction Industry).

Cash flow management is particularly critical in construction, where payment cycles often extend 60-90 days. Contractors who fail to properly track and manage their finances risk running into liquidity issues that can jeopardize active projects. The percentage-of-completion method, required by GAAP for long-term contracts, provides the most accurate picture of financial performance but requires disciplined tracking (Source: GAAP, ASC 606 - Revenue from Contracts with Customers).

For Washington State contractors specifically, financial mismanagement can result in bond claims, license suspension, or even criminal penalties under RCW 18.27. The Department of Labor & Industries requires contractors to maintain adequate financial records and report accurately on all projects (Source: Washington State RCW 18.27 - Registration of Contractors).

How Should Contractors Implement Best Practices for Contractor Insurance Costs?

Implementing best practices starts with establishing proper systems and processes from day one. The foundation of any construction financial management system is a well-structured chart of accounts that separates costs by job, cost code, and cost type. This enables accurate job costing — the backbone of construction profitability analysis (Source: AICPA, Construction Contractors Audit and Accounting Guide).

Key implementation steps include:

Establish job-level cost tracking — Every expense, from materials to labor to equipment, must be allocated to a specific project and cost code. This enables accurate Work-in-Progress (WIP) reporting and percentage-of-completion calculations.

Implement regular financial reviews — Monthly job cost reviews comparing actual costs to estimates help identify budget overruns before they become critical. Weekly cash flow projections ensure adequate liquidity for ongoing operations.

Maintain compliance documentation — Keep organized records of all tax filings, certified payroll reports, lien waivers, and insurance certificates. The IRS requires contractors to retain records for a minimum of three years, though seven years is recommended (Source: IRS, Publication 583 - Starting a Business and Keeping Records).

Use construction-specific software — General accounting software lacks the job costing, progress billing, and WIP reporting capabilities that construction demands. QuickBooks Contractor Edition, Sage 100 Contractor, or specialized platforms like Procore provide these essential features.

Separate business and personal finances — Maintaining separate bank accounts and credit lines is not just good practice — it's required for proper tax reporting and can affect your bonding capacity.

At Scaffold Bookkeeping, we've helped hundreds of contractors establish these systems efficiently, reducing setup time and ensuring compliance from the start.

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Frequently Asked Questions

Do I have to amortize insurance premiums or can I expense them when paid?

Yes. Under ASC 606 and the matching principle, annual premiums paid upfront must be recorded as a 'Prepaid Expense' (Asset) and expensed monthly over the life of the policy.

Is Workers' Compensation a direct or indirect cost?

WC should be treated as a Direct Cost (Labor Burden). It should be allocated to specific jobs based on the labor hours worked on those projects to ensure accurate gross profit reporting.

How do I handle an insurance audit bill from a prior year?

An audit premium is a 'Loss Contingency.' If you know your payroll or revenue exceeded your policy estimates, you must accrue the estimated additional premium as a liability on your balance sheet.

What is Contractor Insurance Costs?

Contractor Insurance Costs is a critical financial process in construction that helps contractors track costs, ensure compliance, and maintain profitability across projects. It requires specialized knowledge of construction accounting principles and regulatory requirements.

Why is Contractor Insurance Costs important for construction companies?

Contractor Insurance Costs ensures accurate financial reporting, regulatory compliance with IRS and state requirements, and provides the data needed for informed business decisions. Without proper management, contractors risk financial penalties and lost profitability.

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