The fixed asset accounting process is the sequence of steps a business follows to record a long-lived tangible asset at purchase, carry it on the books while it is in use, and remove it when it is sold or scrapped. The steps are: capitalize the asset at its full cost, enter it in the general ledger and the Fixed Asset Register, depreciate it over its useful life for financial reporting, run a separate depreciation calculation for tax, classify any later spending as either a repair or a capital improvement, test for impairment if something unusual happens to its value, and record the disposal when the asset leaves service. Each step has its own rules, and skipping any of them creates problems that surface later in audits, tax returns, or financial statements that no longer match reality.
Fixed assets, often grouped on the balance sheet as Property, Plant, and Equipment (PPE), are tangible items held for use in operations rather than for resale: machinery, vehicles, buildings, furniture, and similar resources. Because each one produces value across multiple years, generally accepted accounting principles (GAAP) require the cost to be spread across those years instead of deducted all at once.1Board of Governors of the Federal Reserve System. Financial Accounting Manual for Federal Reserve Banks – Chapter 3 Property and Equipment That spreading, and the record-keeping around it, is what the process below manages.
Step 1: Decide Whether to Capitalize, and at What Cost
Every purchase starts with a threshold question. Most companies set an internal capitalization threshold, a dollar floor below which purchases go directly to the income statement as current-period expenses. Anything above that floor is capitalized on the balance sheet.
The IRS reinforces the practice with a de minimis safe harbor election. If your business has audited financial statements, you can expense items costing up to $5,000 per invoice; without audited statements, the ceiling is $2,500.2Internal Revenue Service. Tangible Property Final Regulations Many small businesses set their internal threshold at those figures so a single policy covers both books and tax.
Once an item qualifies, calculate the full cost basis. This is not just the invoice price. It includes every expense needed to get the asset to its location and into working condition: freight, installation labor, sales and use taxes, site preparation, professional fees, and testing. A $50,000 machine with $3,000 in shipping and $2,000 in installation is recorded at $55,000. That total is the number every later depreciation calculation starts from.
Step 2: Record the Asset in the Ledger and the Fixed Asset Register
When the asset is ready for use, record it in the general ledger with a debit to the appropriate PPE account and a credit to Cash or Accounts Payable for the full cost basis.
At the same time, add the asset to the Fixed Asset Register (FAR). The FAR is a subsidiary ledger that tracks each asset’s description, cost, acquisition date, physical location, assigned useful life, and accumulated depreciation. It is the single source of truth for your asset portfolio, and keeping it current pays off at every subsequent step, especially disposal and physical inventory.
Step 3: Depreciate the Asset for Financial Reporting
Depreciation begins when the asset is available for its intended use. Under GAAP, that means the asset is in the right location and operating condition, not necessarily the date you first use it. A machine installed and tested on March 15 starts depreciating March 15, even if the first production run is in April.
Depreciation requires three inputs: the cost basis, an estimated useful life, and an estimated salvage value (what you expect to recover at retirement). Cost minus salvage gives the depreciable base.
Straight-Line Method
Straight-line is the most common method for financial reporting. It divides the depreciable base equally across the useful life. For an asset with a $100,000 cost, a $10,000 salvage value, and a five-year life, the depreciable base is $90,000 and the annual expense is $18,000. After five years, book value equals the $10,000 salvage value and no further depreciation is recorded.
Accelerated Methods
Accelerated methods front-load expense into the early years. The double-declining balance method applies twice the straight-line rate to the asset’s book value at the start of each period. For that five-year asset, the straight-line rate is 20 percent, so the double-declining rate is 40 percent, producing $40,000 of depreciation in year one against the full $100,000 cost. Expense shrinks each year as book value declines, and companies typically switch to straight-line partway through to land at salvage value by the end.
Units-of-production ties depreciation to actual output. You divide the depreciable base by total estimated lifetime output to get a per-unit rate, then multiply by actual production each period. It fits manufacturing equipment and vehicles where wear tracks usage more than the calendar.
The Journal Entry
Whichever method you use, the periodic entry has the same shape: debit Depreciation Expense (income statement) and credit Accumulated Depreciation (a contra-asset on the balance sheet). Accumulated Depreciation builds over time and reduces the asset’s carrying value, also called net book value.
Step 4: Run a Separate Depreciation Calculation for Tax
Tax depreciation almost never matches book depreciation, so you maintain two parallel schedules. Federal tax depreciation follows the Modified Accelerated Cost Recovery System (MACRS), which assigns every asset to a recovery class and dictates the percentages for each year.3Internal Revenue Service. Publication 946 – How To Depreciate Property
The most frequently encountered MACRS classes under the General Depreciation System are:4Internal Revenue Service. Publication 946 – How To Depreciate Property
- 5-year property: automobiles, light trucks, computers, office machinery, and research equipment.
- 7-year property: office furniture and fixtures, railroad track, and any property without a designated class life.
- 27.5-year property: residential rental buildings.
- 39-year property: nonresidential real property such as office buildings, stores, and warehouses.
MACRS also prescribes a convention that decides how much depreciation you claim in the year an asset is placed in service or disposed of. The default half-year convention treats property as if placed in service at the midpoint of the tax year.4Internal Revenue Service. Publication 946 – How To Depreciate Property If more than 40 percent of your total depreciable property for the year is placed in service during the last three months, the mid-quarter convention applies instead, and first-year depreciation depends on the quarter each asset entered service.5eCFR. 26 CFR 1.168(d)-1 – Half-Year and Mid-Quarter Conventions Real property uses a mid-month convention.
Section 179 Expensing
Section 179 lets you deduct the full cost of qualifying equipment and software in the year it is placed in service. For the 2026 tax year, the maximum deduction is $2,560,000, phasing out dollar-for-dollar once total qualifying purchases exceed $4,090,000. The deduction cannot exceed taxable business income, so it cannot create or increase a net operating loss.
Bonus Depreciation
The One Big Beautiful Bill Act permanently restored 100 percent bonus depreciation for qualifying business property acquired and placed in service after January 19, 2025.6Internal Revenue Service. One Big Beautiful Bill Provisions Unlike Section 179, bonus depreciation has no dollar cap, applies before Section 179 in the calculation order, and can generate a net operating loss. For most purchases in 2026, the entire cost is deductible in year one for tax even though the books still show depreciation spread over useful life. That gap flows through your deferred tax accounts as a temporary difference.
Step 5: Classify Later Spending as Repair or Capital Improvement
After an asset enters service, every related expenditure has to be classified. The decision controls whether the cost hits the income statement now or gets added to the balance sheet and depreciated.
Routine repairs and maintenance restore the asset to its expected operating condition without making it materially better, extending its useful life, or adapting it to a different use. Replacing worn brake pads on a delivery truck, repainting a warehouse, or swapping a failed hard drive in a server are current-period expenses. Debit Repairs and Maintenance Expense and you are done.
Capital improvements do more: they extend useful life, add capacity, or materially improve efficiency. Adding a climate-controlled wing to a warehouse, or replacing a truck engine with a significantly more powerful one, qualifies. These costs are added to the asset’s existing basis in the FAR and depreciated over the remaining useful life, or a new longer life if the improvement justifies it.
Mistakes cut both ways. Expensing a capital improvement understates assets and current-year income. Capitalizing a routine repair overstates both. Auditors look closely at items near the threshold, so document your reasoning whenever the call is close.
Step 6: Test for Impairment When Something Triggers It
Depreciation handles the predictable decline in value. Impairment handles the sudden kind. If an event suggests a fixed asset’s carrying value may no longer be recoverable, ASC 360 requires you to test it.
Common triggers include a sharp drop in market price, a major change in how the asset is used or in its physical condition, adverse regulatory or legal developments, construction costs running far over budget, and sustained operating losses tied to the asset.
The test has two steps. First, compare the asset’s carrying value to the total undiscounted future cash flows you expect it to generate through use and eventual disposal. If carrying value is lower, the asset passes and no write-down is needed. If carrying value is higher, measure the impairment loss as the difference between carrying value and fair value. Fair value is typically based on market prices for comparable assets or the present value of expected future cash flows.
Recognize the loss immediately on the income statement and write the asset down to its new fair value. That reduced value becomes the new basis for future depreciation. One detail catches people off guard: under GAAP, impairment losses on assets held for use can never be reversed, even if value later recovers. The write-down is permanent.
Step 7: Record the Disposal and Retire the Asset
The lifecycle ends when you sell, scrap, trade, or abandon the asset. The sequence is short, but skipping any step leaves phantom assets on the balance sheet.
First, record depreciation up to the exact disposal date. If you sell a machine on March 15 and the last entry was December 31, post a partial-year entry covering January 1 through March 15 to bring accumulated depreciation current.
Second, calculate final book value: original cost minus total accumulated depreciation. Compare that to whatever you received. Proceeds above book value produce a gain; proceeds below, or no proceeds at all, produce a loss.
Third, book the disposal entry. Debit Accumulated Depreciation for its full balance, credit the PPE account for the asset’s original cost, debit Cash for any proceeds, and record the balancing amount as a Gain on Disposal (credit) or Loss on Disposal (debit). For a machine originally recorded at $55,000 with $45,000 in accumulated depreciation and $15,000 in sale proceeds, the gain is $5,000.
Finally, update the Fixed Asset Register to flag the asset as retired. This is the step that most often gets missed, especially when the person handling the sale is not the one maintaining the FAR. An un-retired asset will keep generating automated depreciation entries and inflate your totals until a count or audit catches it.
Keeping the Register Honest
A Fixed Asset Register is only as reliable as the last time someone verified it. Assets get moved between locations, cannibalized for parts, quietly scrapped, or lost. Without periodic physical counts, the register drifts from reality every quarter.
Most organizations run a full physical inventory of fixed assets at least once a year. Companies with large equipment fleets or multiple locations often count quarterly. Businesses with few physical assets, particularly software and service firms, may rely on annual verification supplemented by IT reports for computer hardware.
A few basics make counts work. Tag every asset with a barcode or RFID label at acquisition so counters can scan rather than transcribe serial numbers by hand. Assign the count to people who do not have custody of the assets they are counting, keeping segregation of duties intact. Document every discrepancy: an asset in the register but not in the building, or one found on site without a register entry, needs a written explanation before the reconciliation closes.
Reconciliation compares the count results against the FAR and the general ledger PPE balances. Discrepancies usually fall into a few categories: assets disposed of without paperwork, assets transferred between departments without a register update, and fully depreciated assets still in use that were incorrectly removed. Clearing them keeps your statements accurate and prevents surprises when the external auditors arrive.