The Collaborative International Dictionary
nondeductible
nondeductible \nondeductible\ adj. not allowable as a tax deduction; as, political contributions are nondeductible. Opposite of deductible.
Wiktionary
nondeductible
a. that cannot be deducted for income tax purposes; and that tax has to be paid on
WordNet
nondeductible
adj. not allowable as a deduction [ant: deductible]
Usage examples of "nondeductible".
Strasbourg on the nondeductible part of our trip to the Essen Toy Fair.