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Sum-of-Years' Digits Depreciation Calculator
Formula: remaining life ÷ sum of the years’ digits × depreciable base. Enter the cost and life (or class) to get a complete schedule.
Sum-of-Years' Digits Depreciation Calculator
Year 1 depreciation3 years · book value after year 1: 5,000.00
Total depreciation shown
10,000.00
Final book value
-0.00
| Year | Opening value | Depreciation | Closing value | Rate % |
|---|---|---|---|---|
| 1 | 10,000.00 | 5,000.00 | 5,000.00 | 50.00 |
| 2 | 5,000.00 | 3,333.33 | 1,666.67 | 33.33 |
| 3 | 1,666.67 | 1,666.67 | 0.00 | 16.67 |
Book depreciation. Tax depreciation rules differ by country.
General information and templates, not legal advice. Laws differ by jurisdiction and change; have a qualified lawyer review anything you rely on. Disclaimer
Frequently asked questions
Is my data uploaded?
No. The calculation runs entirely in your browser — nothing you type is sent to a server.
Is it free?
Yes — free, unlimited and no sign-up.