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Asset / Property Depreciation Calculator

Straight-line depreciation over the useful life of an asset.

Inputs

Asset cost

Salvage value

Useful life

years

Annual depreciation

$6,428.57

Monthly $535.71

Total depreciable base

$45,000.00

Depreciation rate

12.86%

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Straight-line: annual expense = (cost − salvage) ÷ useful life. Book value at year t = cost − t × annual.

Are these amounts an exact tax bill?

No. They use verified 2026 IRS/SSA figures but ignore credits, phase-outs and AMT. Use tax software or a CPA to file.

Marginal vs effective rate?

Marginal is the rate on your next dollar. Effective is total tax ÷ taxable income — always lower because earlier brackets fill first.

Standard or itemized?

Take whichever is larger. 2026 standard deduction: Single $16,100 · MFJ $32,200 · HoH $24,150 · MFS $16,100.

How is state tax handled?

Eight states impose no income tax. The rest are approximated at their top rate — see your state's brackets for a precise figure.