Timely filing defined.

Documents and payments required or permitted by this chapter that are mailed shall be considered furnished, reported, filed or made on time, if mailed in a properly addressed envelope, with postage duly prepaid, which envelope is postmarked, or marked or recorded electronically as provided under section 7502 (f) (2) (c) of the Internal Revenue Code, before midnight of the date prescribed for such furnishing, reporting, filing or making, provided such document or payment is actually received by the department or at the destination that the department or the department of administration prescribes within 5 days of such prescribed date. Documents and payments that are not mailed are timely if they are received on or before the due date by the department or at the destination that the department or the department of administration prescribes. For purposes of this subsection, “mailed” includes delivery by a delivery service designated under section 7502 (f) of the Internal Revenue Code.