(1)  Any claim for property tax reduction to be granted under the provisions of sections 63-701 through 63-710, Idaho Code, shall be filed in the office of the county assessor between January 1 and April 15 of each year. If April 15 is a weekend or a certain holiday recognized by the internal revenue service, such claims shall be considered timely filed if filed on the next business day.
(2)  Any claim for occupancy tax reduction to be granted under the provisions of sections 63-701 through 63-710, Idaho Code, shall be governed by the provisions of section 63-317, Idaho Code, but must be filed in the office of the county assessor no later than the fourth Monday in January of the year following the year for which the occupancy tax was levied.