Nondeductible (adjective)

Not eligible or permitted to be subtracted or excluded as a deduction.

Origin:

Derived from the words 'non' meaning 'not' and 'deductible' meaning 'capable of being subtracted or excluded.'.

Examples:

1. Nondeductible expenses such as personal expenses cannot be claimed on tax returns.
2. The new law prohibits the use of business funds for nondeductible entertainment purposes.
3. Employee contributions to health savings accounts are considered nondeductible.
4. Nondeductible fines and penalties imposed by the government cannot be claimed as a business expense.
5. Nondeductible contributions to an individual retirement account are still subject to taxes.