Equipment Depreciation: How Small Businesses Track Asset Value
Quick Answer
Depreciation spreads the cost of equipment over its useful life instead of expensing it all at once. The IRS says depreciable property must be owned, used in your business, have a determinable useful life and be expected to last more than a year, and depreciation begins when the property is placed in service. Keep an asset register with each item's cost, purchase and in-service dates, location and condition, track repairs and disposals and work with your accountant on the depreciation method and any Section 179 or bonus elections.
Trucks, mowers, ovens, computers, tools and machines are some of the largest purchases a small business makes. Their value drops every year they're used. Depreciation is how that drop shows up in your books and taxes. Tracking it well also helps you plan replacements, insure equipment properly and know what you own.
This guide explains depreciation basics, which equipment qualifies, how straight-line depreciation works and how to build an asset register that keeps your records accurate.
Note: This is general information, not tax or accounting advice. Depreciation methods, elections and limits are complex and change. Work with your accountant or tax professional.
What Is Depreciation?
Depreciation is the way a business deducts the cost of property that lasts more than a year. Instead of deducting the full cost in the year of purchase, the cost is spread over the asset's useful life, unless a special election allows faster deduction.
| Term | Meaning |
|---|---|
| Cost basis | What you paid, generally including costs to get the asset ready to use |
| Placed in service | When the asset is ready and available for its use |
| Useful life | How long the asset is expected to be used |
| Salvage value | Estimated value at the end of its life (for book purposes) |
| Book value | Cost minus accumulated depreciation |
What Can Be Depreciated?
The IRS says that to be depreciable, property must be property you own, used in your business or income-producing activity, have a determinable useful life and be expected to last more than one year. The IRS also notes that land cannot be depreciated because it does not wear out, become obsolete or get used up.
| Usually depreciated | Usually not depreciated |
|---|---|
| Vehicles and trailers | Land |
| Machinery and tools | Inventory held for sale |
| Computers and office equipment | Supplies used up within a year |
| Furniture and fixtures | Personal-use property |
| Kitchen and shop equipment | Repairs that don't improve the asset |
When Depreciation Starts
The IRS says you begin to depreciate property when you place it in service, meaning it's ready and available for its intended use, not necessarily the purchase date. A machine bought in December but installed in February is generally placed in service in February. Record both dates in your asset register.
Straight-Line Depreciation Example
Example (book depreciation): A commercial mixer costs $12,000, has an estimated useful life of 8 years and a $2,000 salvage value.
Annual depreciation = ($12,000 − $2,000) ÷ 8 = $1,250 per year.
After 3 years, book value = $12,000 − $3,750 = $8,250.
Straight-line is the simplest method and often used for internal reporting. Tax depreciation follows IRS rules, which may use different methods, recovery periods and conventions. Your accountant will handle the tax calculation.
Section 179 and Bonus Depreciation
IRS Publication 946 explains that businesses may be able to elect a Section 179 deduction instead of regular depreciation for certain property, and it also covers a special depreciation allowance. These options can let you deduct more of an asset's cost sooner, subject to limits that can change. Ask your accountant whether they make sense for your purchases.
Free Equipment Asset Register
Equipment Asset Register
Business: __________ | Updated: ______ | Maintained by: __________
| Asset # | Description | Serial # | Location / assigned to | Purchase date | In-service date | Cost | Est. life | Annual depr. | Book value | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| ☐ Active ☐ Disposed | ||||||||||
| ☐ Active ☐ Disposed | ||||||||||
| ☐ Active ☐ Disposed | ||||||||||
| ☐ Active ☐ Disposed |
Keep invoices and proof of payment with each entry. Your accountant will use the register to prepare tax depreciation schedules.
Repairs vs. Improvements
| Repair (usually expensed) | Improvement (usually capitalized) |
|---|---|
| Replacing a worn belt | Rebuilding the engine to extend life |
| Routine servicing | Adding new capability |
| Fixing a broken part | Upgrading to increase capacity |
The line between repairs and improvements can be technical. Record repair costs in your equipment maintenance log and let your accountant decide how to treat larger work.
Disposing of Equipment
- Record the date and how the asset left: sold, traded in, scrapped or stolen.
- Record any sale price or trade-in value.
- Mark the asset as disposed in the register.
- Remove it from insurance schedules.
- Give the details to your accountant, since sales and disposals can have tax effects.
Using Book Value to Plan Replacements
Book value isn't the same as market value, but tracking it with age, repair costs and downtime helps you plan replacements before equipment fails at a bad time. When repair costs climb and the asset is near the end of its useful life, budget for a replacement.
| Asset | Age | Repair cost last 12 months | Downtime | Replace next year? |
|---|---|---|---|---|
| ☐ | ||||
| ☐ |
Tracking Who Has What
Depreciation records only help if you know where equipment is. Assign each asset to a location or employee, update it when equipment moves and do a physical check at least once a year. See the equipment checkout form and how to track IT assets.
Example: A Landscaping Company
A landscaping company bought mowers, trimmers and trucks over several years but kept no asset list. At tax time, the accountant had to piece together purchases from bank statements, and some equipment that had been sold was still being depreciated. The owner started an asset register with purchase and in-service dates, cost and assigned crew. Tax prep got faster, insurance schedules were corrected and the company planned mower replacements before the busy season.
Common Mistakes
- No asset list.
- Missing in-service dates.
- Disposed equipment still on the books.
- Lost invoices and proof of payment.
- Treating improvements as repairs or vice versa without advice.
- Not knowing where assets are.
Equipment Depreciation Checklist
| Step | Done? |
|---|---|
| List every piece of equipment | |
| Record cost, purchase and in-service dates | |
| Assign asset numbers and locations | |
| Keep invoices with the register | |
| Log repairs and improvements | |
| Record disposals | |
| Review with your accountant yearly |
Sample Asset Register Entry
| Field | Entry |
|---|---|
| Asset # | EQ-014 |
| Description | Zero-turn mower, 60" |
| Serial # | ZT60-88412 |
| Assigned to | Crew 2 |
| Purchase date | 3/10 |
| In-service date | 3/15 |
| Cost | $11,800 including delivery |
| Notes | Warranty through year 3; serviced every 100 hours |
This sample uses made-up details. Your accountant will decide the tax depreciation method and recovery period.
Capitalization Policy
Many businesses set a dollar threshold below which items are expensed rather than tracked as assets, such as small tools under a certain cost. IRS rules allow certain small purchases to be expensed under specific elections. Ask your accountant to set a threshold that fits your business and the rules, then apply it consistently.
Asset Tags and Numbers
- Give each asset a unique number.
- Label it with a durable tag or engraving.
- Record the number in the register.
- Use the number on maintenance records, checkout logs and insurance lists.
Consistent numbering ties all records for an asset together.
Annual Asset Review
- Physically check that each asset exists and where it is.
- Update condition and assignment.
- Record disposals and missing items.
- Review repair costs and replacement needs.
- Send the updated register to your accountant.
Many businesses do this alongside year-end inventory counts. See the inventory count sheet.
Insurance and Asset Value
Your asset register helps confirm equipment is insured for the right amount. Book value and replacement cost are often very different, so ask your insurance agent which value to use. Update insurance schedules when you buy or dispose of equipment.
Leased vs. Owned Equipment
Depreciation generally applies to equipment you own. Leased equipment is handled differently depending on the lease terms. Keep leased equipment in a separate section of your register with lease dates and terms, and ask your accountant how each lease should be recorded.
Depreciation and Job Costing
Equipment costs are part of what each job really costs. Some businesses charge an hourly or daily equipment rate to jobs based on ownership and operating costs, including depreciation, maintenance and fuel. This helps price equipment-heavy work accurately and shows which equipment earns its keep. See how to track labor costs by job.
Example: A skid steer costs $3,000 a year in depreciation, $1,500 in maintenance and $2,000 in fuel, and is used 500 hours a year. Equipment cost per hour = $6,500 ÷ 500 = $13 per hour.
Common Useful Life Ranges
Useful life for book purposes is an estimate based on how you use equipment. Tax recovery periods are set by IRS rules and may differ. Track your own experience, such as how long mowers or laptops actually last in your business, to make book estimates more realistic.
Depreciation Records to Keep
- Purchase invoices and proof of payment.
- Delivery and installation costs.
- In-service date.
- Improvements and major repairs.
- Disposal records and sale documents.
- Depreciation schedules from your accountant.
Keep records for as long as your accountant recommends, often for as long as you own the asset plus several years after disposal.
Getting Started
- Walk through your business and list every piece of equipment.
- Find purchase invoices and in-service dates.
- Assign asset numbers and tag equipment.
- Enter everything in the asset register.
- Share the register with your accountant.
- Update it whenever equipment is bought, moved or disposed of.
Once the register is built, keeping it current takes only a few minutes per purchase or disposal.
Depreciation vs. Expensing
| Depreciating | Expensing | |
|---|---|---|
| When the cost is deducted | Spread over several years | In the year purchased |
| Common for | Larger, long-lasting equipment | Small items and supplies |
| Effect on profit | Smoother over time | Bigger hit in the purchase year |
Elections like Section 179 can blur this line for tax purposes. Your accountant will decide the best treatment, but your records need to support either approach.
Equipment Depreciation Quick Reference
| Record | Why |
|---|---|
| Cost and invoices | Basis for depreciation |
| In-service date | When depreciation starts |
| Location and assignment | Know where assets are |
| Repairs and improvements | Accurate treatment and replacement planning |
| Disposals | Stop depreciating and report sales |
Accurate records make tax season faster and help you make better decisions about when to repair, replace or sell equipment.
Working With Your Accountant
Send your accountant the updated asset register at least once a year, plus invoices for new purchases and details of anything sold or scrapped. Ask which assets qualify for faster deductions, which useful lives to use for your books and whether any purchases should be timed differently. A clean register can save your accountant hours and reduce the chance of missed deductions or depreciation on equipment you no longer own.
Small Tools and Equipment
Small tools often fall below your capitalization threshold and are expensed rather than depreciated, but they still get lost and need replacing. Track higher-value tools in a simple tool list or checkout log even if they aren't on the depreciation register. Losses add up quickly on job sites.
Equipment Purchased Mid-Year
Equipment bought partway through the year usually doesn't get a full year of depreciation in the first year. Tax rules use conventions that decide how much depreciation is allowed in the first and last years. Record exact in-service dates so your accountant can apply the right convention.
Questions to Ask Your Accountant
- What capitalization threshold should we use?
- Which recent purchases qualify for faster deductions?
- What useful lives should we use for our books?
- How should we handle trade-ins?
- What records do you need from us each year?
Bring these questions to your year-end meeting along with your updated asset register.
Depreciation Mistakes That Cost Money
Missing in-service dates, forgetting to remove sold equipment and losing invoices can all lead to errors in depreciation deductions. Equipment that's been stolen or scrapped but still sits on the books can also lead to paying insurance on assets you no longer have. A yearly review of the register catches these problems before tax time.
Treat the register as a living document, updated every time equipment changes hands.
When in doubt about whether a purchase should be tracked, add it to the register and let your accountant decide how to treat it. It's easier to remove an entry than to rebuild a missing purchase history later.
Most small businesses can build a complete register in an afternoon, then keep it current in minutes.
Update it whenever equipment is bought, moved, repaired or sold, and review it with your accountant each year.
Accurate records pay for themselves at tax time.
Start with your most valuable equipment and work down the list.
Final Thoughts
Depreciation tracking isn't just a tax task. It tells you what you own, where it is, what it's worth and when to replace it. Start with a simple register and keep it current.
Track Assets With Updoot
Updoot's asset tracking keeps each asset's cost, dates, location, assignment and maintenance history in one place, so your register is always current when your accountant asks.
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