Vehicle EconomicsIs an Extended Warranty Worth It Calculator
Compare a warranty's cost against a self-funded repair reserve over the same term.
Why this comes up
An extended warranty is a hedge, not automatically a good or bad deal. This engine compares its cost against self-funding your own repair reserve for the same term, so you can see the exact repair spend at which the warranty starts paying for itself.
How we calculated this
The break-even repair spend is the warranty price plus your total expected deductibles. If your actual repairs over the term would exceed that figure, the warranty comes out ahead; if not, self-funding does.
Worked example, using this page's own defaults ($2,200 warranty, 5-year term, $100 deductible, 3 expected claims, $600/year expected repairs without coverage): the break-even repair spend is $2,500, and expected repairs of $3,000 over 5 years would put the warranty ahead by $500.
What this means
- A warranty is a hedge against variance, not average cost; self-funding wins on average whenever expected repairs are below the break-even point, but carries the downside risk the warranty removes.
- A high deductible eats into the warranty's real value even when it technically "wins" on paper.
- See Repair Budget Calculator to size a self-funded reserve directly, independent of this comparison.
Limitations
Expected repair cost and claim count are your own estimates, not a probability distribution of actual outcomes; this is a deterministic break-even, not a risk model. See Methodology.
Methodology
This engine uses Vehicle Economics' break-even convention in closed form: warranty price plus deductibles paid versus modeled repair spend. See Methodology for the full detail.