Deductible break-even calculator

THE SHORT ANSWER

Raising your deductible lowers your premium, but you pay more out of pocket if you file a claim. The break-even point is how many claim-free years it takes for the premium savings to cover the extra risk.

Enter the two numbers from your quote

Current deductible

New deductible

Yearly premium at $500

From your current quote

Yearly premium at $1,000

From the carrier’s quote tool

How often do you expect to file a claim?

Honest guess based on your driving history and parking situation. This flips the verdict.

None in the next 5 yearsAbout 1 in 5 yearsAbout 1 in 3 years

Emergency savings available

The cash you could pull together today for a repair bill.

This is an estimate, not a quote. The calculator does arithmetic on the numbers you enter; actual rates depend on carrier underwriting.

How we calculate this

The calculator does three pieces of arithmetic on the numbers you enter. Nothing comes from an external rate table and nothing is modeled, so if the numbers on your quote are right, the result is right.

yearly_savings       = current_premium − new_premium
extra_risk_per_claim = new_deductible − current_deductible
break_even_years     = extra_risk_per_claim ÷ yearly_savings
expected_5yr_net     = (yearly_savings × 5) − (expected_claims × extra_risk_per_claim)

Expected claims is a flat multiplier from the radio you pick: 0 for none, 1.0 for “1 in 5 years,” about 1.7 for “1 in 3 years.” Honest guesses are fine. Most private-passenger drivers go years without a comp or collision claim, but your parking situation and driving history matter more than any national average.

The verdict chip and the explanation under it both react to the pick above:

GOOD BET

Expected 5-year net is at least as big as your expected claim cost over the same period, and the new deductible is covered by your emergency savings. (When you expect no claims, that collapses to “positive net + savings cover deductible.”)

RISKY TRADE

Expected 5-year net is positive but the margin above your expected claim cost is thin, or the new deductible is more than your savings on hand.

NOT WORTH IT

Expected 5-year net is zero or negative (your claim frequency eats the premium savings), or your new premium is higher than your current premium.

The one-line context sentence under the headline is picked from the claim-frequency choice directly, and every number inside it (yearly savings, 5-year total, expected-claims count) is computed from your inputs rather than hardcoded. The “deductible > savings” warning renders as a separate caution box whenever your new deductible exceeds your cash on hand, regardless of the verdict chip.

WORKED EXAMPLE

Current deductible $500, new deductible $1,000. Premium at $500 is $1,840 a year; at $1,000 it is $1,720. Yearly savings $120. Extra risk per claim $500. Emergency savings $3,000 (so the deductible is covered).

None in 5 years: expected cost = 0 × $500 = $0. 5-year net = (120 × 5) − 0 = +$600. Net clears the expected cost by $600, deductible is covered → Good bet.
1 in 5 years: expected cost = 1 × $500 = $500. 5-year net = (120 × 5) − 500 = +$100. Net is positive but below the $500 expected cost → Risky.
1 in 3 years: expected cost = (5/3) × $500 ≈ $833. 5-year net = (120 × 5) − 833 ≈ −$233. Net is negative → Not worth it.

Common questions

Does the deductible apply to every claim?

It applies to collision and comprehensive claims (damage to your car) and some uninsured-motorist property-damage claims. It does not apply to liability claims, which pay the other party when you cause damage. Many policies also waive the comprehensive deductible for windshield claims; check your declarations page.

What is a reasonable deductible for most people?

The common range is $500 to $1,000. Lower deductibles cost more each year but hurt less at claim time. Higher deductibles save on premium but only if you can actually come up with the money the day of the claim.

Why would the quote show a smaller difference than I expected?

Carriers price the deductible choice differently. Some pass most of the savings through to the policyholder; others keep more of it. The only way to know your number is to pull a quote at both levels and compare.

Does raising the deductible affect my rate at renewal?

The deductible is just one input to your premium. Your record, vehicle, mileage, credit (where allowed), and ZIP code move the price far more. Raising the deductible by one tier typically changes the premium by low single-digit percentages.

Should the deductible match my emergency savings?

At minimum, yes. If your deductible is $1,000 but you cannot pull together $1,000 for a repair, the discount you got on premium does not help you when you need the car fixed.

Does this tool send my premium or deductible numbers anywhere?

No. All math runs in your browser. The only thing we log for product analytics is the verdict label (good bet / risky / not worth it) when a result renders, so we can see which decision shapes shoppers hit. We do not transmit any of the dollar amounts you type.

Sources

What is covered by a basic auto insurance policy? (Insurance Information Institute)
Auto insurance consumer guide (National Association of Insurance Commissioners)
YesWeSure: What is a car insurance deductible?
YesWeSure: How your deductible affects your premium

Last reviewed October 24, 2026.