Do You Capitalize Sales Tax on Fixed Assets?

Yes — when you capitalize sales tax on fixed assets, you add the tax to the asset’s cost basis and recover it through depreciation rather than deducting it as a current expense. 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 for depreciation. The IRS treats the tax as a necessary, non-recoverable cost of acquiring the asset, so it belongs on the balance sheet with the equipment, not in your expense accounts.¹

What Else Belongs in the Basis

Sales tax is one of several acquisition costs that get folded into a fixed asset’s capitalized cost. IRS Publication 551 defines cost basis as the amount you pay in cash, debt, property, or services, plus amounts paid for:

Sales tax
Freight
Installation and testing
Excise taxes
Legal and accounting fees, when they must be capitalized
Recording fees

All of these get folded into the asset’s capitalized cost.¹ A working rule: if you wouldn’t have incurred the cost without buying the asset, it belongs in the basis. The specialized concrete pad you pour for a new press is capitalized alongside the press.

Publication 946 confirms the point specifically for depreciable property: basis includes “amounts you paid for items such as sales tax.”² Topic 703 says the same thing in one sentence: “Cost includes sales tax and other expenses connected with the purchase.”³

So in the $108,000 machine example, your journal entry debits the equipment account for the full $108,000. The $8,000 in sales tax never touches your expense accounts. It stays on the balance sheet and moves through the income statement gradually via depreciation.

Use Tax on Out-of-State Purchases

When you buy equipment from an out-of-state seller that doesn’t charge your state’s sales tax, you typically owe use tax at the same rate. From a capitalization standpoint, use tax works identically to sales tax. It’s a non-recoverable tax directly connected to the acquisition, so it gets added to the asset’s cost basis.¹

The mistake here is skipping the accrual altogether. If you buy a $75,000 piece of equipment from another state and no sales tax appears on the invoice, you still owe your state’s use tax on that purchase. Accrue it, pay it, and capitalize it into the basis. Ignoring it because it wasn’t on the receipt understates both your asset and your state tax liability.

How the Capitalized Tax Comes Back Through Depreciation

Because sales tax increases the asset’s cost basis, it increases the total amount you depreciate. That $108,000 machine generates higher annual depreciation expense than a $100,000 machine would. The effect is small in any single year but compounds over the asset’s life and flows through to your tax return.

Most tangible business property is depreciated under the Modified Accelerated Cost Recovery System. Your full capitalized basis — purchase price, sales tax, freight, installation — is the starting point for the MACRS deduction reported on Form 4562.²

Capitalizing sales tax doesn’t necessarily mean waiting years to deduct it. Two accelerated provisions can pull the deduction into year one.

Section 179 Expensing

The Section 179 election lets you deduct the cost of qualifying business property in the year you place it in service, up to an annual limit. For tax years beginning in 2026, the maximum Section 179 deduction is $2,560,000, and the deduction begins phasing out dollar-for-dollar once total qualifying property placed in service exceeds $4,090,000.⁴ The cost eligible for the election includes the capitalized sales tax, so the full $108,000 basis from the earlier example can potentially 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. This replaced the phasedown that had been reducing the bonus percentage by 20 points each year since 2023.⁵ For assets placed in service in 2026, businesses can deduct the full depreciable basis, capitalized sales tax included, 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.

The De Minimis Safe Harbor

Not every fixed asset purchase needs the full capitalization treatment. The IRS de minimis safe harbor lets you expense certain low-cost tangible property purchases outright. The thresholds depend on whether your business has an applicable financial statement, such as an audited set of financials:

With an applicable financial statement, you can expense items costing up to $5,000 per invoice or per item.
Without an applicable financial statement, the ceiling drops to $2,500 per invoice or per item.⁶

The thresholds include allocable costs on the same invoice, so sales tax, delivery, and installation charges all count toward the limit. If a $2,300 piece of equipment plus $184 in sales tax plus $100 in delivery totals $2,584, a business without an applicable financial statement exceeds the $2,500 threshold and must capitalize 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 safe harbor doesn’t cover inventory, land, or certain spare parts you’ve elected to capitalize.

When Sales Tax Stays Out of the Basis

Two situations remove the capitalization requirement. If your state grants a sales tax exemption for the purchase, which is common for manufacturing equipment bought for direct production use, no tax is owed and nothing gets added to the basis. If you operate under a value added tax regime where the tax is recoverable through government credits, the recoverable portion stays out of the asset’s cost. Only non-recoverable, actually-paid tax gets capitalized.

The Schedule A Election for Sole Proprietors

Publication 946 flags one wrinkle that catches sole proprietors off guard. 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 your asset’s cost basis.² You pick one benefit or the other. For most entities filing separately from their owners this election isn’t relevant, but sole proprietors and single-member LLC owners should check before assuming the sales tax automatically lands in the asset basis.

Common Mistakes

Most capitalization errors with sales tax fall into a few predictable patterns.

The first is expensing the tax because it feels like a tax rather than 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 crosses their desk. The tax on that equipment is not an operating expense.

The second is forgetting use tax on interstate purchases. When no sales tax appears on the vendor invoice, the corresponding use tax can slip through entirely, leaving the asset basis understated and the state liability unpaid.

The third is failing to include delivery, installation, and other ancillary costs that appear on the same invoice. All necessary costs to get the asset into working condition belong in the basis, not just the line item labeled “equipment.”³

The fourth is doubling up. Sole proprietors sometimes capitalize sales tax into an asset basis while also deducting general sales taxes on Schedule A. Publication 946 is clear that you cannot do both. If you claim the sales tax deduction on Schedule A, those taxes come out of the asset’s cost basis.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
Internal Revenue Service. Rev. Proc. 2025-32
5
Internal Revenue Service. Notice 26-11 – Interim Guidance on Additional First Year Depreciation Deduction
6
eCFR. 26 CFR 1.263(a)-1 – Capital Expenditures; In General