What Is a Capital Purchase? Depreciation, Section 179, and Resale

A capital purchase is a business expenditure that buys or improves a long-term asset expected to serve the business for more than one year, such as equipment, a vehicle, a building, or an intangible asset like a patent. Unlike everyday operating costs, which you deduct in full the year you pay them, a capital purchase goes on your balance sheet and its cost is recovered gradually through depreciation or amortization. Several current provisions, including 100% bonus depreciation and higher Section 179 limits for 2026, let many businesses deduct the full cost in year one anyway.

What Counts as a Capital Purchase

The test is useful life. If what you bought will serve your business for longer than a year, it is generally a capital purchase rather than a regular expense. Rent, payroll, and utilities are operating expenses and come off your income in the year you pay them. Capital purchases sit on the balance sheet as assets and get expensed over time.

Typical examples:

  • Equipment and machinery: CNC machines, forklifts, commercial ovens, printing presses
  • Vehicles: delivery vans, company cars, specialized trucks
  • Real property: office buildings, warehouses, retail space
  • Technology: servers, computer systems, off-the-shelf software
  • Intangibles: patents, trademarks, acquired copyrights
  • Building improvements: new roofing, HVAC systems, security installations

One detail catches people out. Depreciation does not start when you pay for the asset or when it arrives. It starts when the asset is ready and available for use in your business.1Internal Revenue Service. Depreciation Reminders A machine still crated in the warehouse is not placed in service. A rental unit is placed in service when it is ready to rent, even if no tenant has moved in.

Capital Purchase or Repair

This line matters, and it draws audit attention. A repair keeps an existing asset working. A capital expenditure makes it materially better, restores it after a major event, or adapts it to a new use. Repairs are deducted right away. Capital expenditures have to be depreciated.

The IRS tangible property regulations use three tests to decide whether spending on an existing asset counts as an improvement rather than a deductible repair:2Internal Revenue Service. Tangible Property Final Regulations

  • Betterment: the work materially increases the asset’s capacity, productivity, efficiency, strength, or quality, or fixes a pre-existing defect.
  • Restoration: you replaced a major component or substantial structural part, or rebuilt the asset to like-new condition after the end of its useful life.
  • Adaptation: the work converts the asset to a new or different use, inconsistent with its original use.

Fail all three and you have a repair. Patching a leaky roof is a repair. Replacing the whole roof almost certainly is not. Repainting an office is a repair. Gutting it to build a restaurant kitchen is an adaptation. The gray area sits in the middle, which is where documentation earns its keep.

The De Minimis Safe Harbor

Small purchases that would technically be capital assets do not have to go through depreciation. A safe harbor lets you expense them immediately, so you are not tracking a $400 office chair over seven years.

The thresholds depend on whether your business has an applicable financial statement (an audited statement prepared under GAAP, filed with the SEC, or similar):

Most small and mid-sized businesses use the $2,500 threshold. You need a written accounting policy in place at the start of the tax year, applied consistently, and the election is made annually on your return.

How Depreciation Works

Once a purchase exceeds the de minimis threshold and qualifies as a capital asset, its cost is spread across the asset’s useful life. For tangible assets that spreading is called depreciation; for intangibles like patents or acquired copyrights it is amortization.

For federal tax purposes, nearly all business assets use the Modified Accelerated Cost Recovery System (MACRS). Each type of asset is assigned to a class with a fixed recovery period:4Internal Revenue Service. IRS Publication 946 – How To Depreciate Property

  • 5-year property: computers, office equipment, automobiles, certain manufacturing equipment
  • 7-year property: office furniture, fixtures, agricultural machinery
  • 15-year property: land improvements like parking lots and fencing, and qualified improvement property (interior improvements to nonresidential buildings)
  • 27.5 years: residential rental property
  • 39 years: nonresidential real property

For most shorter-lived classes, MACRS uses a 200% declining balance method that front-loads deductions into the early years and switches to straight-line when that produces a bigger deduction. In practice, though, many businesses never run the full MACRS schedule because they write the asset off in year one under one of the provisions below.

Writing Off the Full Cost in Year One

Two provisions let you skip the slow route and deduct the cost of qualifying capital purchases immediately.

Section 179 Expensing

Section 179 lets you elect to deduct the full cost of qualifying property in the year you place it in service. The One Big Beautiful Bill Act raised the ceilings. For tax years beginning in 2026, the base statutory deduction limit is $2,500,000, and the phase-out threshold begins at $4,000,000, both subject to inflation adjustment.5Office of the Law Revision Counsel. 26 USC 179 – Election To Expense Certain Depreciable Business Assets Above the threshold, the deduction shrinks dollar for dollar with additional qualifying purchases.

Qualifying property includes tangible personal property (equipment, machinery, vehicles), off-the-shelf software, and certain real property improvements like roofing, HVAC, fire protection, alarm, and security systems. Land, land improvements like parking lots and fences, property acquired by gift or inheritance, and property purchased from a related party do not qualify.4Internal Revenue Service. IRS Publication 946 – How To Depreciate Property

One limit catches people off guard: your Section 179 deduction cannot exceed your total taxable income from the active conduct of any trade or business for the year.6eCFR. 26 CFR 1.179-2 – Limitations on Amount Subject to Section 179 Election Section 179 cannot create or increase a net operating loss. Any unused portion carries forward.

Bonus Depreciation

Bonus depreciation under Section 168(k) works alongside Section 179 with different rules. The One Big Beautiful Bill Act permanently restored 100% bonus depreciation for qualifying property acquired and placed in service after January 19, 2025.7Internal Revenue Service. Treasury, IRS Issue Guidance on the Additional First Year Depreciation Deduction Amended as Part of the One Big Beautiful Bill For assets placed in service in 2026 and after, that is a full first-year deduction of the cost.

Bonus depreciation has no dollar cap, applies to used property as long as it is new to you, and can create or increase a net operating loss. It does not apply to most real property, though qualified improvement property with a 15-year recovery period qualifies. You elect in or out by property class, not asset by asset.

Both provisions are claimed on Form 4562.8Internal Revenue Service. About Form 4562, Depreciation and Amortization (Including Information on Listed Property) Many businesses use them together: Section 179 on specific assets up to the limit, bonus depreciation on the rest.

What You Owe When You Sell

The tax benefit of depreciation is really a deferral. When you sell or dispose of a depreciated asset, the IRS recaptures part of what you deducted. This is easy to overlook and can produce a large tax bill on the exit.

For depreciable personal property such as equipment, machinery, vehicles, and furniture, Section 1245 treats the portion of any gain that matches prior depreciation as ordinary income rather than capital gain, regardless of holding period.9Office of the Law Revision Counsel. 26 USC 1245 – Gain From Dispositions of Certain Depreciable Property If you took 100% bonus depreciation or a Section 179 deduction and sell the asset a year or two later at a gain, expect all of that accelerated write-off to come back as ordinary income.

Real property is handled under Section 1250. Unrecaptured Section 1250 gain, essentially the depreciation portion, is taxed at a maximum rate of 25%. Gain above the original purchase price is taxed at regular capital gains rates.10Internal Revenue Service. Tax Topic 409 – Capital Gains and Losses

Sales of business property are reported on Form 4797, which handles the recapture calculation based on the property type, holding period, and gain or loss.11Internal Revenue Service. Instructions for Form 4797 – Sales of Business Property

Documentation and State Differences

Getting the classification wrong pushes your tax bill in one direction or the other. Treating a capital purchase as a current expense inflates deductions, understates profit, and invites penalties on audit. Capitalizing a routine repair delays a deduction you were entitled to take, so you overpay this year.

For borderline items, document your reasoning while it is fresh. Photographs of the work, contractor invoices describing scope, and internal notes about purpose all help. The betterment, restoration, and adaptation tests are not always intuitive, and reasonable people can disagree on whether replacing part of a roof is a restoration or a repair. Businesses that come through audits cleanly are the ones that documented their thinking at the time.

State tax treatment is a separate question. Not every state conforms to federal Section 179 limits or bonus depreciation. Some impose much lower caps, and some do not allow bonus depreciation at all. If you operate in multiple states or make substantial capital purchases in a single year, the state calculations can produce a materially different bill than your federal return would suggest.