Meaning of tax-deductible

tax-de•duct•i•ble

Pronunciation: (taks'di-duk"tu-bul), [key]
— adj.
  1. noting an item the value or cost of which is deductible from the gross amount on which a tax is calculated.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.