Description
Straight-line monthly depreciation capped at salvage, with explicit useful life and no accounting-rule lookup.
An administrative calculation applies supplied clocks, fees, exclusions, roles, and document conditions. Numeric consistency and an explicit condition match can be useful record checks. They do not select the governing authority, verify evidence, or establish legal rights and obligations.
Straight-line monthly depreciation capped at salvage, with explicit useful life and no accounting-rule lookup.
When to use this tool
Use Municipal Asset Depreciation Month Share when you need a supplied administrative fee, clock, role, document, or accounting calculation before checking its substantive basis.
How to use the tool and how it works
- Enter cost, salvage, lifeMonths, elapsedMonths. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read depreciable, accumulated, bookValue. Use the output convention below.
Return depreciable=cost-salvage, accumulated=depreciable*min(elapsedMonths,lifeMonths)/lifeMonths, and bookValue=cost-accumulated. Require nonnegative salvage within cost and positive integer life with nonnegative elapsed months.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| cost | Cost | Required. Finite number. |
| salvage | Salvage | Required. Finite number; minimum 0. |
| lifeMonths | Life Months | Required. Safe integer; minimum 1. |
| elapsedMonths | Elapsed Months | Required. Safe integer; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| depreciable | Depreciable | Required. Finite number. |
| accumulated | Accumulated | Required. Finite number. |
| bookValue | Book Value | Required. Finite number. |
{
"input": {
"cost": 12000,
"salvage": 2000,
"lifeMonths": 100,
"elapsedMonths": 30
},
"output": {
"depreciable": 10000,
"accumulated": 3000,
"bookValue": 9000
}
}Limitations and assumptions
- This is straight-line depreciation capped at salvage. Asset classification, useful life, impairment, legal accounting rules, and actual valuations are not selected or verified.
- The field tables state structural bounds; the mechanics also specify cross-field constraints. Malformed inputs and unsupported domains cause errors. A successful false flag, empty branch value, or zero placeholder has the meaning stated above and is distinct from an input error.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Signed zero is exported as zero.
Alternative or Complementary methods
Consult the applicable authoritative rule and verify source records before deciding fees, authority, deadlines, or obligations. Keep a supplied scenario calculation separate from that evidence review.
References
Similar or alternative tools
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