The amount that is deducted from some or all claims arising under an insurance or reinsurance contract. The practical effect is the same as an excess: the insured or reassured must bear a proportion of the relevant loss. If that loss is less than the amount of deductible/excess then the insured or reassured must bear all of the loss (unless there is other insurance in place to cover the deductible).
An increase in deductible should result in a reduction in premium.
