Survey equipment like GPS receivers, robotic total stations, and data collectors falls under the 5-year MACRS (Modified Accelerated Cost Recovery System) class for depreciation purposes. That means if you capitalize a $30,000 GPS unit, you spread the deduction across roughly six tax years following the standard MACRS percentage schedule. The IRS uses a half-year convention for most equipment, which is why a “5-year” asset actually takes parts of six calendar years to fully depreciate.

For most surveying firms, Section 179 is the more attractive option. It lets you deduct the full purchase price in the year you place the equipment in service, up to the annual limit (which has been over $1 million in recent years). If you buy a $45,000 total station in March and start using it on jobs that same month, you can write off the entire amount on that year’s return. This makes sense when your taxable income is high enough to absorb the deduction. If you’re in a low-income year, spreading the deduction over five years through standard MACRS might save you more in the long run because you preserve the deduction for years when your tax rate is higher.

Bonus depreciation is another route that works similarly to Section 179 but without the taxable income limitation. The percentage has been phasing down, so check with your tax preparer on what’s available for the current year.

Field vehicles and trailers follow different depreciation rules. Trucks over 6,000 pounds GVWR qualify for larger first-year deductions under Section 179, while lighter vehicles have caps on annual depreciation. Trailers used to haul equipment are generally 5-year MACRS property but should be tracked on their own schedule separate from your survey instruments.

The practical side of this matters just as much as the tax rules. Every piece of equipment needs to be recorded with its purchase date, cost, and the depreciation method you elected. Mixing up assets or forgetting to add a new purchase to your fixed asset schedule means your books don’t reflect reality, and your tax return could be wrong in either direction. Professional service firms like surveying companies often accumulate $100,000 or more in depreciable assets without a clean list to show for it.

Keep equipment purchases separate from repairs and supplies. Replacing a battery or getting a total station calibrated is an expense you deduct immediately. Buying a new instrument is a capital purchase that needs to go on the depreciation schedule. The line between repair and improvement can get fuzzy with upgrades, so document what you bought and why.

If you have several years of equipment purchases that were never properly set up for depreciation, a Dodge County bookkeeper familiar with fixed assets can help you build a clean schedule and make sure you haven’t missed deductions you were entitled to. Getting this right once means every future purchase just slots into an existing system.