Idaho regulates gold and silver buying through its scrap metal law, Idaho Code 54-2701 to 54-2708, which treats metal valued for its gold, silver, platinum, palladium or rhodium content as nonferrous metal property. It covers businesses that buy that metal from the public to aggregate and resell to another scrap business or to process into feedstock. For each purchase of twenty dollars or more, the buyer records your signature, name and street address, the date, location and value, and a copy of a current driver's license valid to operate a motor vehicle in Idaho or a U.S. or Idaho government photo ID. It cannot buy without that ID. You sign a declaration that the property is not, to your knowledge, stolen, and until your fourth sale to the same business within a year the sale is photographed, showing you, the property and any vehicle you came in.
Records are kept five years and handed to police on request. There is no state holding period: a scrap metal business only has to set aside property that police report as stolen, for up to five business days. The chapter sets no age limit and no payment-method rule for purchases from the public.
We found no Idaho statute licensing pawnshops or secondhand jewelry stores. Where those rules exist they come from city and county ordinances, which this page does not cover.