Asset Depreciation Calculator
Enter purchase cost, holding years, first-year depreciation, and later-year depreciation. This estimates accounting book value only; it does not predict market resale price.
A QUICK WALKTHROUGH
How to use this tool
- Enter the purchase cost and holding period.
- Enter first-year and later-year depreciation percentages.
- Review the estimated book value and cumulative depreciation by year.
Book-value scenario
This tool applies the percentages you provide to estimate a declining book balance. It does not account for tax rules, salvage value, disposals, impairments, or a specific accounting standard.
Not a market valuation
The result is not a prediction of resale price, fair value, or market demand. Market prices require separate evidence and assumptions.
Local processing
Inputs and calculations stay in this browser; nothing is uploaded or stored.
Asset depreciation scenario
For a boat or another asset, both rates are your scenario inputs. No typical market rate is supplied. The example rates only illustrate arithmetic; this is not a marine resale valuation.
Cumulative loss (%)
V = P × (1 − f/100) × (1 − r/100)^(n − 1); cumulative loss = P − V; loss% = (P − V)/P × 100
Purchase cost
Cost: zero, or 0.01–1,000,000,000,000. Years: integer 1–30. Rates: 0–100%. Zero cost makes loss percentage undefined.
Asset depreciation scenario
Computed values use JavaScript floating-point precision without fixed money rounding; decimal approximations can occur. Reports preserve the original input text.
GOOD TO KNOW
Common questions
What formula is used?
Purchase cost × (1 − first-year depreciation) × (1 − later-year depreciation)^(years − 1).
Does this predict what the asset will sell for?
No. It estimates book value from your depreciation assumptions and does not predict market resale price.
How many rows can I show?
The optional table shows up to 30 years.