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NBV (Net Book Value) / Depreciation Calculator
Use this calculator to build a simple year-by-year depreciation schedule for a fixed asset and to estimate its Net Book Value (NBV) at the end of each year. You can compare two common bookkeeping methods: Straight Line and Declining Balance.
What this calculator produces
- Beginning Value (opening NBV for the year)
- Depreciation Expense for the year
- Ending Value (closing NBV for the year)
Inputs explained
- Asset Description — A label for the asset (e.g., “Laptop”, “Trailer”, “Excavator”).
- Cost of Asset — The original purchase cost used for depreciation.
- Year Asset Purchased — The first year shown on the schedule.
- Depreciation Method — Choose how depreciation is calculated:
- Straight Line — same depreciation amount every year (Cost × Rate).
- Declining Balance — depreciation declines over time (Opening NBV × Rate).
- Depreciation Percentage (%) — Enter as a normal percent (e.g., 10 for 10%).
- Last Year of Calculation — The final year to include on the schedule.
How to use it
- Enter the asset description and cost.
- Select the year purchased and the last year you want calculated.
- Pick a method (Straight Line or Declining Balance).
- Enter the depreciation % and click Calculate.
- Review the schedule below the form.
Example (Straight Line):
Cost $10,000 at 10% → Depreciation expense is $1,000 each year (until the schedule ends).
Cost $10,000 at 10% → Depreciation expense is $1,000 each year (until the schedule ends).
Example (Declining Balance):
Cost $10,000 at 20% → Year 1 dep’n is $2,000 (20% of $10,000). Year 2 dep’n is $1,600 (20% of $8,000), and so on.
Cost $10,000 at 20% → Year 1 dep’n is $2,000 (20% of $10,000). Year 2 dep’n is $1,600 (20% of $8,000), and so on.
Important notes
- This tool is designed for book depreciation / internal planning. Tax depreciation rules (like CCA classes, half-year rule, recapture, terminal loss) are different and may require a separate calculator.
- If your asset should not depreciate below a minimum value (salvage value), add that rule to your policy or adjust the schedule manually.
- NBV is an accounting estimate used for financial reporting — it may differ from the asset’s fair market value.