§ 6161. Extension of time for paying tax
(a)
Amount determined by taxpayer on return
(1)
General rule
The Secretary, except as otherwise provided in this title, may extend the time for payment of the amount of the tax shown, or required to be shown, on any return or declaration required under authority of this title (or any installment thereof), for a reasonable period not to exceed 6 months (12 months in the case of estate tax) from the date fixed for payment thereof. Such extension may exceed 6 months in the case of a taxpayer who is abroad.
(2)
Estate tax
The Secretary may, for reasonable cause, extend the time for payment of—
(B)
any part of any installment under section
6166 (including any part of a deficiency prorated to any installment under such section).
(b)
Amount determined as deficiency
(1)
Income, gift, and certain other taxes
Under regulations prescribed by the Secretary, the Secretary may extend the time for the payment of the amount determined as a deficiency of a tax imposed by chapter 1, 12, 41, 42, 43, or 44 for a period not to exceed 18 months from the date fixed for the payment of the deficiency, and in exceptional cases, for a further period not to exceed 12 months. An extension under this paragraph may be granted only where it is shown to the satisfaction of the Secretary that payment of a deficiency upon the date fixed for the payment thereof will result in undue hardship to the taxpayer in the case of a tax imposed by chapter 1, 41, 42, 43, or 44, or to the donor in the case of a tax imposed by chapter 12.
(c)
Claims in cases under title 11 of the United States Code or in receivership proceedings
Extensions of time for payment of any portion of a claim for tax under chapter 1 or chapter 12, allowed in cases under title 11 of the United States Code or in receivership proceedings, which is unpaid, may be had in the same manner and subject to the same provisions and limitations as provided in subsection (b) in respect of a deficiency in such tax.
(d)
Cross references
(2)
Security
For authority of the Secretary to require security in case of an extension under subsection (a)(2) or subsection (b), see section
6165.