# Fixed Declining Balance Depreciation Calculator

> Calculate a fixed declining-balance depreciation rate and annual schedule that approaches salvage value.

Page: https://askcalculators.com/calculator/fixed-declining-balance-depreciation-calculator/
Definition: https://askcalculators.com/calculator/fixed-declining-balance-depreciation-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/fixed-declining-balance-depreciation-calculator/schema.json
Version: 1.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/fixed-declining-balance-depreciation-calculator/?cost=50000&salvageValue=5000&usefulLife=8&firstYearMonths=12

## Inputs
- cost: Asset cost; type=money; required; default=50000; min=0.01
- salvageValue: Salvage value; type=money; required; default=5000; min=0
- usefulLife: Useful life in years; type=number; required; default=8; min=1; max=100
- firstYearMonths: Months in first year; type=number; required; default=12; min=1; max=12

## Outputs
- fixedRate: Fixed declining rate; format=percent; primary
- firstYearDepreciation: First-year depreciation; format=currency
- totalDepreciation: Total scheduled depreciation; format=currency
- endingBookValue: Ending book value; format=currency

## Formula
fixed rate = 1 − (salvage ÷ cost)^(1/life); first and final years are prorated when applicable

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.

Notice: Book and tax depreciation conventions can differ. This schedule is an educational estimate.