nondeductible

1 of 2

adjective

non·​de·​duct·​ible ˌnän-di-ˈdək-tə-bəl 

: not deductible

especially : not deductible for income tax purposes

a nondeductible contribution

nondeductibility

ˌnän-di-ˌdək-tə-ˈbi-lə-tē 

noun

nondeductibility

2 of 2

noun

non·​deductibility "+ 

: the condition of being nondeductible

Examples of nondeductible in a Sentence

Recent Examples on the Web

Adjective

If approved, billionaires would have to pay the tax in 2027 or could opt to spread payments across five years for an additional annual nondeductible charge of 7.5% of the remaining unpaid balance. — Tim Fang, CBS News, 8 Jan. 2026

The strategy transfers your pretax or nondeductible IRA funds to a Roth IRA to kickstart future tax-free growth. — Kate Dore, Cfp®, Ea, CNBC, 20 Oct. 2025

Until that year, lawmakers had granted a deduction for almost all these taxes, carving out just a few nondeductible exceptions (such as estate, inheritance, and gift taxes, which lawmakers made nondeductible in 1934). — Joseph Thorndike, Forbes.com, 15 Sep. 2025

Word History

Etymology

Noun

non- entry 1 + deductibility

First Known Use

Adjective

1943, in the meaning defined above

Rhymes for nondeductible

• deductible
• indestructible
• ineluctable

Kids Definition

nondeductible

adjective

non·​de·​duct·​ible -di-ˈdək-tə-bəl 

: not deductible

especially : not deductible for income tax purposes

a nondeductible contribution

nondeductibility

-ˌdək-tə-ˈbil-ət-ē 

noun