The default chart of accounts in QuickBooks or any accounting software doesn’t work for contractors. Generic templates lump everything into broad categories that make it impossible to see which jobs made money and which ones lost it. You need accounts structured for construction.

Start with your cost of goods sold. This is where most contractors go wrong. You need separate accounts for materials, direct labor, subcontractor costs, and equipment rental. Some contractors break materials down further into categories like lumber, concrete, electrical supplies, and plumbing supplies. The level of detail depends on how granular you want your job cost reports.

Your income accounts should match how you actually bill. If you do both fixed-price contracts and time-and-materials work, separate them. If you bill separately for design work or consulting, create distinct income accounts. This lets you see which revenue streams perform best.

Retainage needs its own accounts on both sides of the balance sheet. Retainage receivable tracks money customers owe you but are holding until project completion. Retainage payable tracks money you’re holding from subcontractors. These aren’t the same as regular accounts receivable and payable, and treating them the same creates confusion.

Work in progress accounts handle timing differences between costs incurred and revenue recognized. If you’re doing percentage-of-completion accounting or need to track underbillings and overbillings, you need WIP accounts. This gets complicated and typically requires a QuickBooks bookkeeper in Santa Fe or accountant who understands construction accounting.

Operating expenses are more straightforward. Vehicle costs, insurance, office expenses, professional fees, marketing. Keep these separate from your direct job costs. The goal is a clear line between what you spend to run jobs and what you spend to run the business.

Equipment owned versus rented matters for job costing. If you own equipment and use it across multiple jobs, you need a way to allocate those costs. Rented equipment gets coded directly to the job that used it.

The chart of accounts is just the foundation. The real value comes from using it consistently with job costing so every transaction gets assigned to the right project. A perfectly designed chart of accounts gives you nothing if expenses aren’t coded correctly to specific jobs.

Keep the structure detailed enough to answer your questions but simple enough that you can maintain it. Twenty cost of goods sold accounts that never get used correctly is worse than five accounts used consistently.