/ dɪˈdʌktəbl; NAmE / adjective , noun
■ adjective
that can be taken away from an amount of money you earn, from tax, etc. :
These costs are deductible from profits.
tax-deductible expenses (= that you do not have to pay tax on)
■ noun
( NAmE ) = excess (3):
a policy with a very high deductible