How do I account for equipment depreciation in construction?
Equipment depreciation spreads the cost of trucks, excavators, trailers, and other assets over their useful life instead of deducting the full amount when purchased. This matches the expense to the years you actually use the equipment and gives a more accurate picture of profitability.
For tax purposes, most construction equipment uses MACRS (Modified Accelerated Cost Recovery System). The IRS assigns each asset a recovery period. Vehicles typically depreciate over 5 years while heavy equipment and machinery usually fall into 5 or 7 year categories depending on the type. Land improvements like paving depreciate over 15 years.
Section 179 lets you deduct the full cost of qualifying equipment in the year you buy it, up to annual limits. Bonus depreciation allows additional first-year deductions on top of regular depreciation. These options can significantly reduce your tax bill in years when you make large equipment purchases. Whether to use accelerated deductions or spread them out depends on your overall tax situation and expected income in future years.
In your accounting records, you’ll track three things for each asset. The original cost, accumulated depreciation, and net book value. Each month or year, you record a depreciation expense that increases accumulated depreciation and reduces the equipment’s book value on your balance sheet. Most accounting software handles this automatically once you set up the asset correctly.
For contractors, understanding equipment depreciation matters beyond basic bookkeeping. When you’re trying to figure out if a job actually made money, you need to account for the equipment costs involved. If your $80,000 excavator worked three months on a single project, some portion of that depreciation belongs to that job’s costs. Without allocating equipment to jobs, your job costing reports overstate profitability because they’re missing real costs.
Setting up fixed assets correctly from the start saves headaches later. Record the purchase date, cost basis, expected useful life, and depreciation method for each piece of equipment. Keep documentation for major purchases since you’ll need it if the IRS questions your deductions.
Most contractors don’t need to become depreciation experts. What matters is having your equipment tracked in your accounting system with the right method applied consistently. Professional bookkeeping services in American Fork familiar with construction can set this up and make sure depreciation flows into your financial statements correctly.
Utah's Construction Bookkeeping Specialists
The Next Step:
A 15-Minute Call
We'll ask a few questions about your business, figure out what you need, and give you a straightforward price.
More Questions
How do I handle bookkeeping for an excavation company?
Excavation bookkeeping centers on tracking costs by job and by equipment. Every fuel purchase, equipment hour, and material haul needs to tie back to a specific project so you know which jobs actually make money.
Read answerHow do I account for change orders in my books?
Record change orders as separate line items from your original contract, tracking both the additional revenue and the associated costs. This keeps your job costing accurate so you can see true profitability on the original scope.
Read answerHow do I track equipment hours by job?
Use daily equipment logs or telematics systems to record hours by job. Then calculate an hourly equipment rate that includes ownership and operating costs, and apply those hours to each job in your cost reports.
Read answerHow much of my bank account is actually mine?
Your bank balance includes money you owe but haven't paid yet. Subtract accounts payable, payroll, payroll taxes, sales tax, and customer deposits for unfinished work to find your true available cash.
Read answerWhy do I keep getting surprised by expenses?
Expense surprises usually happen because irregular costs aren't planned for, committed costs aren't tracked, or you're only looking at your bank balance instead of your full financial picture.
Read answerWhy are my job cost estimates always wrong?
Job cost estimates typically miss because you're not learning from completed projects. Without tracking actual costs by phase and cost code, every new estimate relies on gut feeling rather than real data from your own jobs.
Read answer