Meanings
adjectivenondeductible (not comparable)
- not comparablebusinessThat cannot be deducted for income tax purposes, and that tax has to be paid on.
Since you fund a nondeductible IRA with already-taxed dollars, you might figure you wouldn't pay any income taxes on the conversion.
2012 July 31, Walter Updegrave, “'Should I convert my IRA into a Roth?'”, in CNN Money, archived from the original on 31 Jan 2023
nounnondeductible (plural nondeductibles)
plural nondeductibles
- businessAny expense that cannot be deducted for income tax purposes.
Synonyms & antonyms
adjectivenot allowable as a deduction
Opposite
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
Translations
Finnish vähennyskelvoton
- vähennyskelvotonthat cannot be deducted for tax purposes
Cite this entry
APA
nondeductible. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/nondeductible
MLA
“nondeductible.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/nondeductible. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “nondeductible,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/nondeductible.
Source: nondeductible on Wiktionary, CC BY-SA 4.0.