Example 1: X, an individual, timely requests and is granted an extension of time to file his tax return for his taxable year ending December 31, 2001. On the extended due date for such return (October 15, 2002), X files his tax return for such year, electing thereon to credit the reported overpayment to his estimated tax for his taxable year ending December 31, 2002. Subject to the provisions of subdivisions (3) and (4) of this subsection, the reported overpayment will be treated as if paid on the due date of the first required installment of estimated tax for X's taxable year ending December 31, 2002, including any required installment due before the date on which the tax return for the taxable year ending December 31, 2001 is filed, and will be credited to the required installments of estimated tax for X's taxable year ending December 31, 2002 in the order in which such installments were required to be credited under section 12-722 of the Connecticut General Statutes (first to the installment due April 15, 2002, any remaining balance then to be credited to the installment due June 15, 2002, any remaining balance then to be credited to the installment due September 15, 2002 and any remaining balance then to be credited to the installment due January 15, 2003).
Example 2: W, an estate, timely requests and is granted an extension of time to file its tax return for its taxable year ending July 31, 2002. On May 16, 2003, after the extended due date for such return (May 15, 2003), W files its tax return for such year, electing thereon to credit the reported overpayment to its estimated tax for its taxable year ending July 31, 2003. Subject to the provisions of subdivisions (3) and (4) of this subsection, the reported overpayment will be credited to the required installments of estimated tax for W's taxable year ending July 31, 2003 in the order in which such installments were required to be credited under section 12-722 of the Connecticut General Statutes, but will be treated as if paid on the date that such tax return is filed (May 16, 2003). If W has not otherwise made payment of its required installments of estimated tax for the taxable year ending July 31, 2003, the reported overpayment will be credited first as an untimely payment of the required installment due November 15, 2002, any remaining balance then to be credited as an untimely payment of the required installment due January 15, 2003, any remaining balance then to be credited as an untimely payment of the required installment due April 15, 2003, and any remaining balance then to be credited as a timely payment of the required installment due August 15, 2003.
Example 3: Y, an individual, timely files her tax return for her taxable year ending December 31, 2001, electing thereon to credit a reported overpayment of $1,000 to her estimated tax for her taxable year ending December 31, 2002. After processing such return, the Department determines that the amount of the reported overpayment is incorrect, and that the actual overpayment is only $500. If the amount of Y's first required installment, as defined in section 12-722 of the Connecticut General Statutes, of estimated tax for her taxable year ending December 31, 2002 is $1,000 and Y otherwise has made no payment toward such first required installment, Y has underpaid her first required installment by $500 and is subject to an addition to tax under section 12-722 of the Connecticut General Statutes.
Example 4: N, an individual, timely files his tax return for his taxable year ending December 31, 2001, electing thereon to credit a reported overpayment of $10,000 to his estimated tax for his taxable year ending December 31, 2002. After processing such return, the Department determines that the amount of the reported overpayment is correct. Before the expiration of the period within which an audit examination may be performed under section 12-728 of the Connecticut General Statutes, the Department examines N's tax return for his taxable year ending December 31, 2001, and, having determined that N failed to correctly calculate his Connecticut adjusted gross income, makes a deficiency assessment of $5,000 plus statutory interest (plus a penalty under section 12-728 of the Connecticut General Statutes, if appropriate) against N. The making of such deficiency assessment will not affect the crediting of the reported overpayment of $10,000 to N's first required installment of estimated tax for his taxable year ending December 31, 2002.
Example 6: M, an individual, timely files his tax return for his taxable year ending December 31, 2001, electing thereon to credit a reported overpayment of $1,000 to his estimated tax for his taxable year ending December 31, 2003. After processing such return, the Department determines that the amount of the reported overpayment is correct. However, M has an outstanding liability of $500 for real estate conveyance tax (and $100 of interest thereon) under section 12-494 of the Connecticut General Statutes, and this liability is the subject of a timely filed administrative appeal or of a timely filed appeal pending before any court of competent jurisdiction. Therefore, this liability will not affect the crediting of the reported overpayment of $1,000 to M's estimated tax for his taxable year ending December 31, 2003.
Conn. Agencies Regs. § 12-739(d)-1