Depreciation Calculator
Calculate asset value decline over time using Straight Line, Double Declining Balance, SYD, Units of Production, and MACRS. Estimate tax deductions under Section 179 and Bonus Depreciation.
Asset Parameters
US Tax Incentives (Sec 179 / Bonus)▼
Auto-calculated rate for 2026: 20%
Depreciation Ledger Statement
Asset Cost: $30,000 | Method: MACRS
| # | Calendar Yr | Start Book Value | Incentives (179/Bonus) | Standard Dep | Total Dep Expense | Accumulated Dep | End Book Value | Tax Savings (21%) |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026 | $30,000 | - | $6,000 | $6,000 | $6,000 | $24,000 | $1,260 |
| 2 | 2027 | $24,000 | - | $9,600 | $9,600 | $15,600 | $14,400 | $2,016 |
| 3 | 2028 | $14,400 | - | $5,760 | $5,760 | $21,360 | $8,640 | $1,210 |
| 4 | 2029 | $8,640 | - | $3,456 | $3,456 | $24,816 | $5,184 | $726 |
| 5 | 2030 | $5,184 | - | $3,456 | $3,456 | $28,272 | $1,728 | $726 |
| 6 | 2031 | $1,728 | - | $1,728 | $1,728 | $30,000 | $0 | $363 |
| Σ | Total | - | $0 | $30,000 | $30,000 | - | - | $6,300 |
Understanding Asset Depreciation Methods
Depreciation is a fundamental accounting principle used to allocate the cost of a tangible asset over its useful life. This allows businesses to match the expense of acquiring equipment, machinery, or vehicles with the revenue they generate over time, rather than taking a massive financial hit in the initial purchase year.
Book Depreciation vs. Tax Depreciation
Companies generally maintain two separate sets of depreciation schedules. **Book depreciation** (used for investor-facing financial statements) follows GAAP/IFRS and typically uses the Straight-Line method for smooth, predictable expenses. **Tax depreciation** (used on tax returns) leverages accelerated methods like **MACRS** or **Section 179** to maximize early tax write-offs and defer tax liabilities.
6 Core Methods Supported by Our Engine
The simplest and most common method. Divides the depreciable basis (Cost - Salvage) equally across the useful life. Best for buildings and basic office furniture.
An accelerated method that depreciates assets at twice the straight-line rate. Book value decreases rapidly in early years, which fits tech gear and vehicles that lose value fast.
An accelerated method where fractions based on the remaining useful life are multiplied by the depreciable basis. Provides a smoother decline than declining balance.
Depreciation is based on actual asset usage (e.g. mileage on vehicles, operating hours on generators) rather than elapsed years.
Modified Accelerated Cost Recovery System. Replaced ACRS, using specific asset class tables (3, 5, 7, 10, 15, or 20 years) with half-year, mid-quarter, or mid-month conventions.
US tax code regulations allowing businesses to write off up to 100% of qualified business equipment immediately in Year 1 instead of spreading the cost.
Standard Useful Lives (IRS)
Standard recovery periods defined under IRS Publication 946 for tax filings:
Specialized tools, tractor units, racehorses, and specific software components.
Computers, printers, copiers, passenger cars, taxis, buses, and office machinery.
Office furniture, manufacturing machinery, agricultural equipment, and retail fixtures.
Residential rental properties depreciate over 27.5 years. Commercial buildings depreciate over 39 years (Straight Line convention).
How Depreciation Calculator Works
Our high-performance online utility runs entirely client-side, processing your requests securely and instantly inside your web browser. For related features, you can also use our Finance Calculators and Tax Calculator tools.
Enter Asset Cost
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Set Useful Life
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Choose Method
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Depreciation Methods
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Frequently Asked Questions About Asset Depreciation
Is this depreciation calculator free?
Yes. Calculate unlimited asset depreciation with no registration.
Which depreciation methods are supported?
Straight Line, Double Declining Balance, Sum-of-Years' Digits, and MACRS.
Does this include tax savings?
Yes. Calculate Section 179 deductions and bonus depreciation tax benefits.
Do you store asset data in this calculator?
No. All calculations run locally with complete privacy.