Interest on past due contributions

When an employer subject to the federal unemployment tax act for any year becomes subject to the act as of the beginning of the calendar year in accordance with the provisions of section 31-223(a) (1) of the general statutes, the administrator shall waive the interest on all contributions payable with respect to wages paid for calendar quarters prior to the calendar quarter during which such twentieth week was completed, provided all such contributions shall be due and payable on or before the next regular contribution return date. If such contributions are not paid by the next regular contribution return date, they shall thereafter be subject to the interest provided by the act until paid. In like manner, the administrator shall waive the interest when an employer has accepted voluntarily the provisions of the act on all contributions payable with respect to wages paid for calendar quarters prior to the date of signing such voluntary acceptance. In the case of an employer who is found by the administrator to be delinquent because he is in good faith was not aware of the fact that he was subject to the act, the administrator shall waive the interest which accrued during the first five calendar quarters that he was so subject. A registered employer is considered to be aware that he is subject to the act after he has been officially notified in writing by the administrator of his liability. Interest will not be waived for any quarterly period after notification of liability even though such period is within the first five quarters after the employer became subject. If an employer has erroneously paid to some other state or to the federal government contributions later determined to be due to the state of Connecticut, no interest shall be charged on such delinquent contributions from the due date to the date of the discovery of the error and until after the end of the month next succeeding such discovery.