Do You Capitalize Sales Tax on Fixed Assets?

Yes — you capitalize sales tax on fixed assets rather than expensing it. The tax gets added to the asset’s cost basis and is recovered over time through depreciation. If you buy a $100,000 machine and pay $8,000 in state sales tax, your capitalized cost is $108,000, and that full amount becomes the basis you depreciate. The IRS and GAAP both require this because the tax is a necessary, non-recoverable cost of acquiring the asset.

What Belongs in a Fixed Asset’s Cost Basis

Under GAAP, the historical cost of a fixed asset includes every cost necessarily incurred to bring it to the condition and location required for its intended use. The purchase price is the starting point, not the whole figure.

IRS Publication 551 defines cost basis as the amount you pay in cash, debt obligations, other property, or services, plus amounts paid for sales tax, freight, installation and testing, excise taxes, legal and accounting fees that must be capitalized, and recording fees.¹ A workable rule: if you wouldn’t have incurred the cost without buying the asset, it belongs in the basis. The specialized concrete pad poured for a new press gets capitalized alongside the press.

Why Sales Tax Is Capitalized Instead of Expensed

The logic is simple. Sales tax is an unavoidable charge tied directly to the purchase. You cannot acquire the asset without paying it, and in the U.S. system you cannot recover it from the government. It meets both tests for capitalization: necessary to the acquisition, and tied to a benefit that extends beyond the current year.

Publication 946 says it plainly — the basis of depreciable property includes “amounts you paid for items such as sales tax.”² IRS Topic 703 says the same thing a different way: “Cost includes sales tax and other expenses connected with the purchase.”³

In the $108,000 example, the equipment account is debited for the full $108,000. The $8,000 in sales tax never touches an expense account at acquisition. It sits on the balance sheet and moves through the income statement gradually as depreciation.

Why does the timing matter if the total expense is identical over the asset’s life? Because expensing the tax in year one overstates that year’s expenses and understates every subsequent year’s depreciation. That is exactly the kind of misstatement auditors flag on a material purchase.

Use Tax Works the Same Way

When you buy equipment from an out-of-state seller that doesn’t collect your state’s sales tax, you typically owe use tax at the same rate. For capitalization purposes, use tax is treated identically to sales tax: it is a non-recoverable tax tied directly to the acquisition, so it goes into the asset’s basis.¹

The common mistake is forgetting to accrue it. If a $75,000 piece of equipment arrives from another state with no sales tax on the invoice, you still owe your state’s use tax. That tax should be accrued, paid, and added to the asset’s basis — not ignored because the vendor didn’t bill it.

When You Don’t Capitalize Sales Tax

A few situations change the answer.

State Sales Tax Exemptions

If your state exempts the purchase from sales tax — as many do for manufacturing equipment used directly in production — no tax is owed and nothing is added to the basis.

The De Minimis Safe Harbor

Not every small asset purchase has to be capitalized at all. The IRS de minimis safe harbor lets you expense low-cost tangible property outright. With an applicable financial statement (such as an audited set of financials), the threshold is $5,000 per invoice or per item. Without one, it drops to $2,500 per invoice or per item.⁴

Sales tax, delivery, and installation on the same invoice all count toward the limit. A $2,300 item plus $184 sales tax plus $100 delivery totals $2,584, which pushes a business without an applicable financial statement over the $2,500 ceiling and forces capitalization of the full amount. The election is made annually on your tax return and requires written accounting procedures treating those amounts as expenses on your books.

The Schedule A Election for Sole Proprietors

Publication 946 includes one trap. If you elect to deduct state and local general sales taxes instead of state and local income taxes as an itemized deduction on Schedule A, you cannot also include those same sales taxes in the asset’s cost basis.² Pick one. For entities that file separately from their owners the issue doesn’t come up, but sole proprietors and single-member LLC owners should check before assuming the tax lands in the basis automatically.

How the Capitalized Tax Flows Through Depreciation

Because sales tax raises the basis, it raises the total amount you depreciate. The $108,000 machine throws off more annual depreciation than a $100,000 machine would. For federal tax purposes, most tangible business property depreciates under the Modified Accelerated Cost Recovery System, and the full capitalized basis — purchase price, sales tax, freight, installation — is the starting figure for the MACRS deduction on Form 4562.²

Capitalizing does not mean waiting years to get the deduction. Two accelerated provisions can pull most or all of it into year one.

Section 179 Expensing

Section 179 lets you deduct the cost of qualifying business property in the year you buy it, up to an annual limit. For tax years beginning in 2026, the maximum Section 179 deduction is $2,560,000, phasing out dollar-for-dollar once total qualifying property placed in service exceeds $4,090,000.⁵ The cost eligible for the election includes the capitalized sales tax, so the full $108,000 basis in our example could be expensed in year one if you’re within the limits.

100% Bonus Depreciation

Under the One, Big, Beautiful Bill Act signed in 2025, 100% bonus depreciation was permanently restored for qualified property acquired after January 19, 2025, replacing the phasedown that had been reducing the bonus percentage by 20 points each year since 2023.⁶ For assets placed in service in 2026, you can deduct the full depreciable basis, including the capitalized sales tax, in year one.

Even with these accelerated options, the capitalization step still matters. You need an accurate basis to calculate the correct deduction, whether you spread it over five years or take it all at once.

Mistakes That Draw Attention

A few patterns account for most of the errors.

Treating the tax as a tax, not an asset cost. Accountants who handle sales tax on office supplies all day sometimes default to the same treatment when a $50,000 equipment invoice arrives. The tax on that equipment is not an operating expense.

Missing use tax on interstate purchases. When no sales tax appears on the vendor invoice, the use tax obligation can slip through entirely, leaving the asset basis understated and the state liability unpaid.

Leaving out delivery, installation, and other ancillary costs on the same invoice. All necessary costs to get the asset into working condition belong in the basis, not just the line labeled “equipment.”³

Double-dipping on Schedule A. Sole proprietors sometimes capitalize the sales tax into an asset’s basis and also deduct general sales taxes on Schedule A. Publication 946 is clear that you cannot do both.²

1
Internal Revenue Service. Publication 551 – Basis of Assets
2
Internal Revenue Service. Publication 946 – How To Depreciate Property
3
Internal Revenue Service. Topic no. 703, Basis of Assets
4
eCFR. 26 CFR 1.263(a)-1 – Capital Expenditures; In General
5
Internal Revenue Service. Rev. Proc. 2025-32
6
Internal Revenue Service. Notice 26-11 – Interim Guidance on Additional First Year Depreciation Deduction