How should a construction company track equipment costs and depreciation?

The first decision is whether to expense or capitalize. Under the de minimis safe harbor election, equipment costing $2,500 or less per unit can be expensed immediately. If your company has audited financial statements, that threshold goes up to $5,000. Anything above that threshold needs to be capitalized as a fixed asset and depreciated over its useful life. You make the de minimis election annually on your tax return, so make sure your bookkeeper and tax preparer are on the same page about which threshold applies to you.

For equipment that gets capitalized, track every asset individually. Each excavator, skid steer, trailer, and generator should be its own line item in your fixed asset register with the purchase date, cost basis, useful life, and depreciation method recorded. Lumping equipment together into one big “equipment” account creates a mess when you sell, trade in, or scrap a piece. You need to know what you paid for that specific backhoe and how much depreciation you’ve taken on it so you can calculate the gain or loss on disposal accurately. Without individual tracking, you’re guessing, and the IRS doesn’t accept guesses.

Section 179 and bonus depreciation let you accelerate deductions on qualifying equipment. Section 179 allows you to deduct the full purchase price in the year you buy it, up to annual limits. Bonus depreciation lets you write off a percentage of the cost in year one. These are powerful tools for construction companies that buy or finance heavy equipment regularly, but they need to be used strategically. Taking a massive deduction in a year where your income is already low doesn’t help much. Timing matters, and that’s a conversation to have with your tax advisor before you make the purchase, not after.

Keep maintenance and repair costs completely separate from the asset’s capitalized value. Oil changes, tire replacements, hydraulic repairs, and routine servicing are operating expenses that get deducted in the year you pay them. Capital improvements that extend the life of the equipment or make it substantially better get added to the asset’s cost basis and depreciated. Replacing a cracked windshield is a repair. Rebuilding the engine to add another five years of useful life is likely an improvement. The distinction affects your tax return and your balance sheet, so it needs to be categorized correctly when the expense hits your books.

When you dispose of equipment, the accounting has to be clean. Whether you sell it, trade it in, or send it to the scrap yard, you need to remove the original cost and all accumulated depreciation from your books and record any gain or loss. A truck you bought for $65,000 and have depreciated down to $15,000 that you sell for $25,000 produces a $10,000 taxable gain. If your assets are lumped together, calculating that correctly is nearly impossible.

Set up your accounting software with a fixed asset account for equipment, a corresponding accumulated depreciation account, and a maintenance and repairs expense account. Run a depreciation schedule at least annually, ideally with your bookkeepers in Fairfax updating it quarterly so your financial statements reflect the real value of your fleet. Good equipment tracking doesn’t just help at tax time. It tells you what you own, what it’s worth, and what it costs to keep running, which are numbers every construction business owner should know.