Conn. Gen. Stat. § 12-738
Penalty for false statement relating to withholding allowance.
(1) Such statement did not result in a decrease in the amount deducted and withheld, or
(2) The taxes imposed with respect to the individual under this chapter for the next succeeding taxable year do not exceed the sum of: (i) The credits against such taxes and (ii) the payments of estimated tax which are considered payments on account of such taxes. The provisions of section 12-728 relating to deficiency procedure shall not apply in respect to the assessment or collection of any penalty imposed by this section.