Depreciation Calculator — Straight-Line Method & Asset Depreciation ScheduleAnnual Depreciation = (Cost − Salvage Value) / Useful Life · SLM · WDV · MACRS
Use this free Straight-Line Depreciation Calculator to instantly calculate the annual depreciation expense of any fixed asset and generate a complete asset depreciation schedule using the standard straight-line depreciation formula: Annual Depreciation = (Asset Cost − Salvage Value) / Useful Life — where Asset Cost is the original purchase price or capitalized cost, Salvage Value (also called residual value or scrap value) is the estimated asset worth at end of useful life, and Useful Life is the expected number of years in productive service. The result is a consistent, equal depreciation charge per year that systematically reduces the asset's net book value (NBV) to its residual value over the full depreciation period.
Asset depreciation calculation is a core requirement across a wide range of accounting and financial management applications: financial reporting under IFRS, GAAP, and Ind AS standards · corporate income tax depreciation & deferred tax calculation · fixed asset register (FAR) maintenance & asset tracking · capital expenditure (CapEx) planning & budgeting · business valuation & net asset value (NAV) calculation · equipment replacement planning & lifecycle cost analysis. While the straight-line method (SLM) spreads depreciation equally across all years, other common methods include the Written Down Value method (WDV / Declining Balance), Double Declining Balance (DDB), Sum of Years' Digits (SYD), and the MACRS (Modified Accelerated Cost Recovery System) used for US federal tax depreciation. This depreciation schedule calculator is used daily by accountants, chartered accountants (CA), CFOs, tax consultants, financial analysts, and business owners for accurate non-cash expense reporting and profit and loss (P&L) impact assessment.
⚠ Accounting Disclaimer: This depreciation calculator is intended for educational, planning, and illustrative purposes only. Actual depreciation methods, rates, and tax treatments vary significantly based on applicable accounting standards (IFRS, US GAAP, Ind AS), tax jurisdiction rules, asset class classifications, Income Tax Act provisions (Section 32 in India), and IRS Publication 946 guidelines (US). Always consult a licensed chartered accountant (CA), CPA, or tax advisor before applying depreciation schedules to financial statements, tax filings, or audit reports.
Related Accounting & Finance Calculators
Depreciation Calculator — The Asset Write-Down Method You Choose Changes Your Tax Bill
Depreciation is a non-cash accounting entry that reduces taxable income by spreading an asset's cost over its useful life. The method you choose determines how quickly that cost is recognized. Straight-line depreciation spreads the cost evenly — $50,000 equipment over 5 years is $10,000 per year. Double-declining balance front-loads the deduction — the same equipment depreciates $20,000 in year one, $12,000 in year two, decreasing each year. The total depreciation is identical; the timing of the tax benefit is entirely different.
Section 179 and bonus depreciation allow businesses to deduct the full cost of qualifying assets in the year of purchase rather than spreading it over years. For a profitable business purchasing $100,000 in equipment, immediate expensing saves the tax on $100,000 this year — a present value advantage over taking $20,000 deductions for five years. For a business with losses or minimal profit, deferring depreciation to future profitable years is more valuable. The calculator shows both approaches so the optimal choice for your tax situation is clear.
Book depreciation (for financial reporting) and tax depreciation (for tax returns) often differ, creating deferred tax liabilities on the balance sheet. A company using straight-line for books and accelerated for taxes shows higher profits on its income statement and lower taxes on its return during the early years of an asset's life. This divergence reverses in later years. The calculator computes both schedules separately so you understand both the accounting impact and the cash tax timing.