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Exempt Organizations Technical Guide›TG 62: Excise Taxes on Taxable Expenditures – IRC Section 4945›Table of Contents

B.5. Definition of Taxable Period

Publication 5590 — Exempt Organizations Technical Guide TG 62: Excise Taxes on Taxable Expenditures under IRC 4945 · 2026-10-03 edition · updated 2026-10-04 · United States

(1) The taxable period, for purposes of correcting a taxable expenditure, begins with

the date of the making of the taxable expenditure and ends on the earlier of:

62

a. The date of a mailing of a notice of deficiency with respect to the first tier tax;

or

b. The date on which the first tier tax is assessed. See Section 4945(i)(2) and

Treas. Reg. 53.4945-1(e).

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▸Contents — Publication 5590 — Exempt Organizations Technical Guide TG 62: Excise Taxes on Taxable Expenditures under IRC 4945

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