Me. Rev. Stat. tit. 36, § 2913

A person who refuses or neglects to make any statement, report, payment or return required by this chapter, or who knowingly makes or assists any other person in making a false statement in a return or report to the State Tax Assessor or in connection with an application for refund , or who knowingly collects, attempts to collect or causes to be paid to any person, either directly or indirectly, any refund to which the person is not entitled , is guilty of a Class E crime.