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DSK 01 Desk tool

Deductible break-even calculator

A lower deductible usually comes with a higher premium. This calculator compares two options you have been quoted and shows how often you would need to claim for the lower deductible to be worth its extra cost. The numbers already filled in are examples. Replace them with the figures from your own quotes. Nothing you type is stored or sent anywhere, and the result is general information, not a recommendation.

Option A
Option B

The option with the smaller deductible is the lower one. Its extra premium each year is its premium minus the other premium. Its saving on each claim is the difference between the two deductibles. Divide the extra premium by the saving and you get the claims per year at which the two options cost the same. Multiply that by the years you expect to keep the policy to get the claims needed over that time. The values filled in are examples only. Use the figures from your own quotes, in the currency of your policy.

Extra premium per year for the lower deductible
100.00
Saving on each claim with the lower deductible
500.00
Claims needed over those years to break even
2.0
Break-even claim rate
About one claim every 5.0 years

How this works

The calculator treats the option with the smaller deductible as the lower one, whichever you enter first. Then it works out two amounts.

  • Extra premium per year = premium of the lower-deductible option − premium of the higher-deductible option.
  • Saving per claim = higher deductible − lower deductible.

Dividing the first by the second gives the claims per year at which the two options cost the same. Multiplying by the years you expect to keep the policy gives the claims needed over that time. If you claim more often than the break-even rate, the lower deductible costs less overall. If you claim less often, the higher deductible does.

The limits matter. A saving per claim only applies to a loss that is bigger than the deductible, so small losses you would not claim anyway do not count. The calculation ignores premium changes after a claim, which some insurers apply and which can add to the cost of claiming. It also assumes both quotes cover the same things on the same terms, and it cannot say how likely you are to have a loss. It does not consider whether you could pay the higher deductible out of your own pocket on the day. The wording of your policy and your insurer settle what is covered and what you pay, and rules differ by state, so ask your agent or insurer before you choose. Unfamiliar words are in the insurance terms glossary, and the renewal review checklist lists what to compare when a policy comes up for renewal.

Scope of this tool. It does arithmetic on the numbers you enter. It is general information, not advice, and the documents you hold and a licensed professional have the final word.

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