Learn & Understand

What Used Things Are Worth: Depreciation and Value

Disclaimer: This guide is provided for informational and educational purposes only and does not constitute financial, medical, legal, or other professional advice. Always consult a qualified professional before making decisions based on this information.

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An insurance payout on a five-year-old television will not buy a new one — and that surprises many claimants. The reason is depreciation, the steady loss of value that everything owned undergoes with age and use. Actual cash value applies this idea to claims, and understanding how value is measured explains why the check is smaller than expected.

Nothing Holds Its Value

Almost every possession loses worth over time as it wears, ages, and is superseded by newer versions. A used item is simply worth less than a new one — a truth anyone selling a secondhand phone or car confronts. Depreciation is the accounting name for this decline, and it is as real in an insurance claim as in a resale.

Straight-Line Depreciation

The simplest way to model this decline is straight-line depreciation: spread the loss of value evenly across an item's expected useful life. An item halfway through its expected lifespan is treated as having lost half its value; one near the end of its life, most of it. This even, predictable method is a common way to estimate what a used item is worth at any point.

How age reduces value under straight-line depreciation
Fraction of life usedRemaining value
None (new)Full
HalfAbout half
MostSmall remainder
All (past useful life)Little to none

Actual Cash Value Versus Replacement Cost

Insurance offers two ways to value a loss. Actual cash value pays the depreciated worth of the item — what it was actually worth just before the loss. Replacement cost value pays to buy a new equivalent, ignoring depreciation, and costs more in premium for that more generous treatment. The choice between them determines whether age reduces your payout or not.

Why the Gap Grows With Age

The difference between the two matters most for older belongings. A nearly new item's depreciated value is close to its replacement cost, so the two payouts barely differ. But for an item well into its life, depreciation has carved away most of its value, and an actual-cash-value settlement can fall far short of replacing it — which is why knowing which basis your policy uses matters before a loss occurs.

This is general educational background about how insurance works, not financial, insurance, or legal advice. Coverage decisions should be made with a licensed professional and your own specific circumstances in mind.

Estimating the Payout

To estimate an item's depreciated value, use the Actual Cash Value Calculator. Inventory your belongings with the Renters Insurance Calculator, and see how a car's depreciated value creates a loan gap with the GAP Insurance Calculator.

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