26 U.S. Code § 6425 - Adjustment of overpayment of estimated income tax by corporation
A corporation may, after the close of the taxable year and on or before the 15th day of the fourth month thereafter, and before the day on which it files a return for such taxable year, file an application for an adjustment of an overpayment by it of estimated income tax for such taxable year. An application under this subsection shall not constitute a claim for credit or refund.
Within a period of 45 days from the date on which an application for an adjustment is filed under subsection (a), the Secretary shall make, to the extent he deems practicable in such period, a limited examination of the application to discover omissions and errors therein, and shall determine the amount of the adjustment upon the basis of the application and the examination; except that the Secretary may disallow, without further action, any application which he finds contains material omissions or errors which he deems cannot be corrected within such 45 days.
The Secretary, within the 45-day period referred to in paragraph (1), may credit the amount of the adjustment against any liability in respect of an internal revenue tax on the part of the corporation and shall refund the remainder to the corporation.
No application under this section shall be allowed unless the amount of the adjustment equals or exceeds (A) 10 percent of the amount estimated by the corporation on its application as its income tax liability for the taxable year, and (B) $500.
If the corporation seeking an adjustment under this section paid its estimated income tax on a consolidated basis or expects to make a consolidated return for the taxable year, this section shall apply only to such extent and subject to such conditions, limitations, and exceptions as the Secretary may by regulations prescribe.
 So in original. Probably should not be capitalized.
2015—Subsec. (a)(1). Pub. L. 114–41 substituted “fourth month” for “third month”.
2014—Subsec. (c)(1)(A). Pub. L. 113–295 inserted “plus” at end of cl. (i), substituted “over” for “plus” at end of cl. (ii), and struck out cl. (iii) which read as follows: “the tax imposed by section 59A, over”.
1987—Subsec. (c). Pub. L. 100–203 substituted “section 6655(h)” for “section 6655(g)”.
1986—Subsec. (c)(1)(A). Pub. L. 99–514 amended subpar. (A) generally, restating existing provisions as cl. (i) and adding cl. (ii).
Pub. L. 99–499 amended subsec. (c)(1)(A), as amended by the Tax Reform Act of 1986 (Pub. L. 99–514), by striking out “plus” at end of cl. (i), substituting “plus” for “over” at end of cl. (ii), and adding cl. (iii).
1976—Subsecs. (a), (b), (d). Pub. L. 94–455 struck out “or his delegate” after “Secretary” wherever appearing.
Amendment by Pub. L. 114–41 applicable to returns for taxable years beginning after Dec. 31, 2015, with special rule for certain C corporations, see section 2006(a)(3) of Pub. L. 114–41, set out as a note under section 170 of this title.
Amendment by Pub. L. 99–514 applicable to taxable years beginning after Dec. 31, 1986, with certain exceptions and qualifications, see section 701(f) of Pub. L. 99–514, set out as an Effective Date note under section 55 of this title.
Section applicable with respect to taxable years beginning after Dec. 31, 1967, except as provided by section 104 of Pub. L. 90–364, set out as notes under sections 6154 and 51 of this title, see section 103(f) of Pub. L. 90–364, set out as an Effective Date of 1968 Amendment note under section 6154 of this title.
For applicability of amendment by Pub. L. 99–514 notwithstanding any treaty obligation of the United States in effect on Oct. 22, 1986, see section 1012(aa)(2) of Pub. L. 100–647, set out as a note under section 861 of this title.