Recording maintenance as one general expense account tells you nothing useful. You need to track costs at the vehicle level so you can see which units are eating into your margins and which ones are running efficiently.

Start by creating expense categories that separate types of maintenance. At minimum, split preventive maintenance from repairs. Preventive covers oil changes, scheduled service, and DOT inspections. Repairs cover breakdowns and unplanned parts replacement. Many fleet owners also track tires as their own category since they’re a significant recurring cost that follows a different replacement cycle than other maintenance items.

In QuickBooks, use classes or projects to tag each expense to a specific vehicle. When you pay for an oil change on unit 127, that expense hits your preventive maintenance account and gets coded to that truck. This setup lets you run reports showing total costs by vehicle and by maintenance type. A bookkeeper near Gentry can configure this structure correctly so the reports actually tell you something useful.

Record the mileage at the time of each service. Spending $2,400 on a truck in one quarter means nothing by itself. Spending $2,400 over 35,000 miles gives you a cost-per-mile figure you can compare across your fleet. The truck that looks expensive might actually be your most efficient when you factor in how many miles it ran.

Keep receipts and invoices organized by unit number. Digital folders work well for this. Having service history grouped by vehicle makes it easy to spot patterns and supports your tax deductions. When you sell or trade a unit, complete maintenance records add value.

Don’t skip logging the small purchases. A $45 oil change or $15 in filters might not seem worth the effort, but those expenses add up over a year. Gaps in your records mean your cost analysis is incomplete and your decisions are based on bad data.

The payoff is real visibility into your fleet economics. You’ll see which trucks consistently run over budget, whether certain repairs keep recurring on specific units, and when a vehicle crosses the line from asset to liability. For trucking and transportation companies, this kind of tracking is essential for making smart decisions about when to repair and when to replace.