Connecticut General Statutes
Chapter 208 - Corporation Business Tax
Section 12-226. - Correction of returns; additional tax; refunds.

(a)(1) Any company whose income, profits or earnings are changed, adjusted or corrected for any income year by any official of the United States government, or any agency thereof, in any respect affecting the tax imposed by this part, shall provide notice of such change, adjustment or correction to the commissioner by filing, on or before the date that is ninety days after the final determination of such change, adjustment or correction, or as otherwise required by the commissioner, an amended return under this chapter, and shall concede the accuracy of such determination or state wherein it is erroneous, and thereafter promptly furnish to the commissioner any information, schedules, records, documents or papers relating to such change, adjustment or correction as the commissioner requires. The time for filing such return may be extended by the commissioner upon due cause shown. If, upon examination, the commissioner finds that the company is liable for the payment of an additional tax, the commissioner shall, within a reasonable time from the receipt of such return, notify the company of the amount of such additional tax, together with interest thereon computed at the rate of one per cent per month or fraction thereof from the date when the original tax became due and payable. Within thirty days of the mailing of such notice, the company shall pay to the commissioner, in cash or by check, draft or money order, drawn to the order of the Commissioner of Revenue Services, the amount of such additional tax and interest. If, upon examination of such return and related information, the commissioner finds that the company has overpaid the tax due the state and has not received from or been allowed by the United States government, or any agency thereof, a credit or a benefit as a deduction or otherwise, for or by reason of such overpayment, the State Treasurer shall pay the company, upon order of the State Comptroller, the amount of such overpayment. If the commissioner determines that the company's claim of overpayment is not valid, either in whole or in part, the commissioner shall mail notice to the company of the proposed disallowance of the claim in whole or in part, which notice shall set forth briefly the commissioner's findings of fact and the basis of disallowance in each case decided in whole or in part adversely to the claimant. Sixty days after the date on which it is mailed, a notice of proposed disallowance shall constitute a final disallowance except only for such amounts as to which the company has filed a written protest with the commissioner, as provided in subdivision (2) of this subsection.

(2) On or before the sixtieth day after the mailing of the proposed disallowance, the company may file with the commissioner a written protest against the proposed disallowance in which it sets forth the grounds on which the protest is based. If a protest is filed, the commissioner shall reconsider the proposed disallowance and, if the company has so requested, may grant or deny the company or its authorized representatives an oral hearing.
(3) The commissioner shall mail notice of his determination to the company, which notice shall set forth briefly the commissioner's findings of fact and the basis of decision in each case decided in whole or in part adversely to the company.
(4) The action of the commissioner on the company's protest shall be final upon the expiration of one month from the date on which he mails notice of his action to the company unless within such period the company seeks judicial review of the commissioner's determination pursuant to section 12-237.
(b) (1) Any company filing an amended return with any official of the United States government, or any agency thereof, shall make an amended return to the commissioner on or before the date that is ninety days after the final determination is made on the amended return by such federal official or agency. The commissioner shall treat any such amended return reporting a tax overpayment as filed in processible form, as described in subsection (c) of section 12-227, after proof of such final determination on such amended federal return by such federal official or agency is submitted to the commissioner. The time for filing such amended return may be extended by the commissioner upon due cause shown. If, upon examination, the commissioner finds that the company is liable for the payment of an additional tax, the commissioner shall, within a reasonable time from the receipt of such amended return, notify the company of the amount of such additional tax, together with interest thereon computed at the rate of one per cent per month or fraction thereof from the date when the original tax became due and payable. Within thirty days of the mailing of such notice, the company shall pay to the commissioner, in cash or by check, draft or money order, drawn to the order of the Commissioner of Revenue Services, the amount of such additional tax and interest. If, upon examination of such amended return and related information, the commissioner finds that the company has overpaid the tax due the state and has not received from or been allowed by the United States government, or any agency thereof, a credit or a benefit, as a deduction or otherwise, for or by reason of such overpayment, the company shall be paid by the State Treasurer, upon order of the Comptroller, the amount of such overpayment. If the commissioner determines that the company's claim of overpayment is not valid, either in whole or in part, the commissioner shall mail notice of the proposed disallowance in whole or in part of the claim to the company, which notice shall set forth briefly the commissioner's findings of fact and the basis of disallowance in each case decided in whole or in part adversely to the claimant. Sixty days after the date on which it is mailed, a notice of proposed disallowance shall constitute a final disallowance except only for such amounts as to which the company has filed, as provided in subdivision (2) of this subsection, a written protest with the commissioner.
(2) On or before the sixtieth day after the mailing of the proposed disallowance, the company may file with the commissioner a written protest against the proposed disallowance in which it sets forth the grounds on which the protest is based. If a protest is filed, the commissioner shall reconsider the proposed disallowance and, if the company has so requested, may grant or deny the company or its authorized representatives an oral hearing.
(3) The commissioner shall mail notice of his determination to the company, which notice shall set forth briefly the commissioner's findings of fact and the basis of decision in each case decided in whole or in part adversely to the company.
(4) The action of the commissioner on the company's protest shall be final upon the expiration of one month from the date on which he mails notice of his action to the company unless within such period the company seeks judicial review of the commissioner's determination pursuant to section 12-237.
(1949 Rev., S. 1907; 1949, 1951, S. 1100d; 1957, P.A. 489, S. 1; 560, S. 5; 1963, P.A. 651, S. 2; February, 1965, P.A. 428; 1969, P.A. 388, S. 3; P.A. 76-322, S. 3, 27; P.A. 77-614, S. 139, 610; P.A. 80-307, S. 7, 31; P.A. 81-411, S. 15, 42; P.A. 84-423, S. 2; P.A. 93-74, S. 61, 67; May Sp. Sess. P.A. 94-4, S. 31, 85; P.A. 95-160, S. 64, 69; P.A. 97-243, S. 53, 67; P.A. 00-174, S. 53, 83; P.A. 02-103, S. 46; P.A. 10-188, S. 5; P.A. 14-60, S. 6.)
History: 1963 act changed technical language, extended time for notifying commissioner of change from 30 to 90 days, and added provisions for amended returns; 1965 act distinguished between income, profits or earnings changed, adjusted or corrected by “any official of the United States government, or any agency thereof” and returns amended by the director of internal revenue; 1969 act increased interest rate from 0.5% to 0.75% per month; P.A. 76-322 increased interest rate to 1%; P.A. 77-614 substituted commissioner of revenue services for tax commissioner, effective January 1, 1979; P.A. 80-307 increased interest rate temporarily to 1.25% for taxes due on or after July 1, 1980, but not later than June 30, 1981; P.A. 81-411 continued interest on delinquent taxes at 1.25% per month, effective July 1, 1981, and applicable to taxes becoming due on or after that date; P.A. 84-423 increased rate of interest applicable to the amount of additional tax due on an amended return from 1.25% to 1.66% per month; P.A. 93-74 decreased interest rate from 1.66% to 1.25%, effective May 19, 1993, and applicable to taxes due and payable on and after January 1, 1994; May Sp. Sess. P.A. 94-4 reduced interest rate from 1.25% to 1%, effective July 1, 1995, and applicable to taxes due and owing on or after said date; P.A. 95-160 revised effective date of May Sp. Sess. P.A. 94-4 but without affecting this section; P.A. 97-243 divided existing section into Subsecs. (a) and (b), provided for an administrative hearing with the department before taking an appeal to the Superior Court, established the time for filing a claim and made technical changes, effective July 1, 1997, and applicable to claims for refund filed on or after said date; P.A. 00-174 amended Subsec. (a)(1) to delete requirement that information required to be reported under this section be in the form of an affidavit, to add provisions re filing an amended return and to make technical changes for purposes of gender neutrality, effective July 1, 2000; P.A. 02-103 made technical changes in Subsec. (a)(1); P.A. 10-188 amended Subsec. (b)(1) to change date for filing amended return from 90 days after filing with Director of Internal Revenue to 90 days after final determination on amended return is made by federal official or agency, add provision re treatment of amended return as filed in processible form and make technical changes, effective June 7, 2010, for income years commencing on or after January 1, 2010; P.A. 14-60 made a technical change in Subsec. (b)(1).
Cited. 135 C. 62. Where additional tax is determined to be due as result of changes, adjustments or corrections in corporation's returns to federal collector of internal revenue in accordance with provisions of section, tax commissioner must notify corporation of additional taxes due “within a reasonable time” and 3-year limitation set forth in Sec. 12-233 does not apply; history discussed. 153 C. 103.
Cited. 44 CS 90.

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