Idaho Code § 67-7438: Prize claiming period.

Prizes may be claimed for a period of one hundred and eighty (180) days after the drawing in which the prize was won or from the last day tickets from that specific game were sold. Prizes won through an electronic terminal shall be payable in accordance with rules and regulations of the commission. If a claim is not made for the prize within the applicable period, the prize money shall be added to future prize pools, to be used in addition to prize allotments already allocated, except as provided in section 67-7433, Idaho Code.