 Because the NPM tax is an "ad valorem" property tax, the amount of the net proceeds times the property tax rate goes to the county where the mineral was extracted.Any additional amount of tax paid up to the 5% goes to the State.In 2017-2018 the Nevada net proceeds royalty raised $155.1 million (down from $255.6 million in 2012) from gold and silver production, of which the counties received $87.5 million (down from $127 million in 2012).