Conn. Gen. Stat. § 12-738: Penalty for false statement relating to withholding allowance.

In addition to any other penalty provided by law, if any individual, in claiming a withholding allowance, makes a statement which results in a decrease in the amounts deducted and withheld under this chapter and, as of the time such statement was made, there was no reasonable basis for such statement, he shall pay a penalty of fifty dollars for such statement, unless:

(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.