Thesaurus.com
Dictionary.com
Definitions

deduct

[dih-duhkt] / dɪˈdʌkt /
VERB
take away or out; reduce
Synonyms
STRONGEST
reduce subtract withdraw write off
STRONG
abstract allow bate diminish discount dock lessen rebate remove take
WEAK
cut back decrease by draw back knock off roll back take from take off
Antonyms
STRONG
add disallow enlarge expand extend hold increase keep lengthen raise refuse reject strengthen

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The new law permanently provides full expensing, allowing businesses to immediately deduct the full cost of new investments, just as they do for labor or utility costs.

From MarketWatch • Apr. 7, 2026

With these, you have to note the initial loss and then deduct from it each year going forward.

From MarketWatch • Mar. 23, 2026

Businesses with under $31 million in average annual gross receipts can deduct unamortized 2022-2024 R&D expenses on 2025 or 2026 taxes.

From Barron's • Mar. 14, 2026

It springs from a landmark 1930 case involving Cohan that allows taxpayers to deduct some expenses even if they don’t have receipts, as long as there’s a reasonable estimate.

From The Wall Street Journal • Mar. 6, 2026

“I'm going to have to deduct the money for a glass beetle,” the burly redbeard announced as he let himself fall into his vast armchair.

From "The Thief Lord" by Cornelia Funke