First-year depreciation$5,000
Total depreciation$25,000
Depreciation schedule| Year | Depreciation | Accumulated | Book value |
|---|
| 1 | $5,000 | $5,000 | $25,000 |
| 2 | $5,000 | $10,000 | $20,000 |
| 3 | $5,000 | $15,000 | $15,000 |
| 4 | $5,000 | $20,000 | $10,000 |
| 5 | $5,000 | $25,000 | $5,000 |
Note: these are book (accounting) depreciation methods. US tax depreciation normally uses MACRS tables and conventions set by the IRS, which give different yearly amounts – ask a tax professional for tax returns.
Straight-line depreciation
(Cost − salvage value) ÷ useful life. A $30,000 asset with a $5,000 salvage value and a 5-year life depreciates $5,000 per year.
Accelerated methods
Double-declining balance applies twice the straight-line rate (2 ÷ life) to the remaining book value – 40% a year for a 5-year asset – and never goes below salvage value. Sum-of-the-years' digits multiplies the depreciable amount by a falling fraction: 5/15, 4/15, 3/15 and so on.
Frequently asked questions
How do you calculate straight-line depreciation?
Subtract the salvage value from the cost and divide by the useful life in years.
What is double-declining balance?
An accelerated method that depreciates 2 ÷ life of the remaining book value each year, so more is expensed in the early years.
Is this the same as MACRS?
No. MACRS is the US tax system with IRS tables and conventions; these calculations are for book accounting.