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Straight line depreciation calculator

Spread depreciable asset cost across a complete schedule that respects residual value.

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How to use Straight line depreciation calculator
  1. Choose Single scenario for guided fields, or Multiple records (JSON) for advanced inputs.
  2. Choose the currency label and decimal places.
  3. Review the report and download complete JSON or CSV.

Useful next steps

Enter values directly

Choose Single scenario to enter values in the fields. Choose Multiple records (JSON) to paste an advanced asset or record list. Guided numeric fields accept local decimal digits and separators without grouping; advanced JSON keeps strict ASCII syntax.

Use the right inputs

Provide one JSON asset with cost, residual and whole-number life. The schedule covers full annual periods, allocating cost minus residual evenly using rounded cumulative amounts. The last closing book value equals residual. No partial-year tax convention, impairment or disposal is inferred.

Keep the full record

Use JSON up to 1000000 characters, 50000 values and 64 nesting levels. Period, invoice and production lists allow up to 2000 records; annual schedules allow 1 to 1000 years. Amounts use plain ASCII decimals up to 1000000000000 and zero to six selected decimal places. Quoted decimal strings preserve exact input. JSON and CSV preserve the full report and source, with exports bounded to 40 million characters and 500000 CSV records. Analysis runs locally with a 10-second timeout. No data is uploaded. Preview tables show the first 200 rows; copy returns the summary. Reports preserve machine keys, source JSON and original content. CSV uses RFC 6901 JSON Pointer field paths and protects spreadsheet formula prefixes; import identifier columns as text.