That which is deducted; that which is subtracted or removed / A sum that can be removed from tax calculations; something that is written off

plural of deduction

The ability to be deducted, such as from one's taxes

plural of deductibility

Alternative spelling of deductible

Eligible to be deducted.

(US, insurance) An amount of expenses that must be paid out of pocket before an insurer will pay further expenses.

To take one thing from another; remove from; make smaller or less by some amount.

Third-person singular simple present indicative form of deduct

simple past tense and past participle of deduct