12 CSR 10-103.310
Timely Filing
PURPOSE: This rule refers to the postmark being prima facie
evidence in determining the date a return is filed and interprets
and applies section 144.655, RSMo.
(1) Returns must be filed as stated in section 144.655, RSMo. The
postmark date of the envelope will be prima facie evidence of
the date of filing the return.
AUTHORITY: section 144.705, RSMo 1994.* U.T. regulation 710-2
originally filed Oct. 28, 1975, effective Nov. 7, 1975. Refiled March
30, 1976. This rule was previously filed as 12 CSR 10-4.310. Moved
to 12 CSR 10-103.310, effective Aug. 31, 2023.
*Original authority: 144.705, RSMo 1959.