Contractors typically carry five or more types of insurance, and each one plays a different role in your financials. Tracking them all in one “insurance expense” account is one of the most common mistakes I see in contractor books. It hides important cost information and makes accurate job costing nearly impossible.

General liability insurance is your baseline coverage for property damage and bodily injury claims. This is typically an overhead cost that gets spread across all your jobs through your overhead rate. Track it in its own account so you can calculate that rate accurately when you’re building estimates. Some larger commercial jobs require you to carry additional coverage, and that project-specific premium should be coded directly to the job.

Workers’ compensation is the one that deserves the most attention. Workers’ comp premiums are directly tied to labor, and they vary by trade classification. A framing crew costs more to insure than office staff. Track workers’ comp separately and, ideally, allocate it to jobs as a percentage of labor cost. When your comp premiums get audited at the end of the policy year and you owe an adjustment, you need to know where that cost belongs. Many contractors get hit with surprise audit bills because they didn’t track payroll by classification throughout the year.

Builder’s risk insurance covers the structure under construction. This is a direct job cost, not overhead. If you’re pulling a policy for each project, code the premium to that specific job. Burying it in a general insurance account means your job costing is understating what each project actually costs to build.

Commercial auto and vehicle insurance covers your trucks and fleet. This is usually overhead, but if you have vehicles dedicated to specific long-term projects, you could allocate a portion to those jobs. At minimum, keep it separate from your other insurance so you can see the true cost of operating your fleet.

Equipment and inland marine insurance covers tools, equipment, and materials in transit or stored on job sites. Track this separately because it often scales with the value of equipment you own. As you add equipment, you need to see this cost growing independently so you can factor it into your equipment rates.

Health insurance and employee benefits sometimes get mixed into the insurance bucket too. These are labor-related costs and should be tracked with your other employee benefits, not lumped in with your business insurance policies.

The reason all of this matters comes down to bidding and profitability. Your overhead rate, which you mark up on every job, should reflect actual overhead costs. If workers’ comp and builder’s risk are sitting in the same account as your GL premium, your overhead rate is inflated and your direct job costs are understated. You might win a bid because your job costs look low, then wonder why margins are thin when overhead eats everything up.

A QuickBooks ProAdvisor in Chandler who understands construction accounting can set up your chart of accounts to separate these properly from the start. The setup takes an hour or two. The clarity it provides for every estimate and every job report going forward is worth far more than that.