What you're actually buying

A low deductible is a promise that the carrier handles small losses. You pay for that promise every single month, claim or no claim. A high deductible keeps small losses on your side of the table in exchange for a permanently lower premium. Neither is wrong — but one of them is usually wrong for you.

The break-even test

Take the annual savings between two deductibles and divide it into the difference in out-of-pocket. If moving from a $500 to a $1,000 comp/collision deductible saves $180 a year, you break even in under three years — and every claim-free year after that is profit. Most drivers go five-plus years between physical-damage claims. The math usually favors the higher deductible for anyone with a real emergency fund.

Where it flips

Homes are different: percentage deductibles mean 1% of a $500k dwelling is $5,000 before the carrier appears. In hail country, where a roof claim is a matter of when, the premium savings for 2% deductibles need to be large to justify doubling that check. Price it explicitly — our customizer shows the spread live.

The rule

Set deductibles at the largest number that wouldn't force you to borrow. Then never file a claim smaller than them — small claims cost more in future premium than they pay.