Idaho Code § 63-1010

In all cases where real property has been or may hereafter be sold for delinquency and a deed has been issued to the county therefor, and redemption has been made in the manner provided and in accordance with the provisions of section 63-1007, Idaho Code, the county tax collector, must issue a deed to the redemptioner; and upon the giving of such deed, such tax deed so issued to the county and the delinquency and tax sale upon which the same is based and all delinquencies and sales for prior year delinquencies shall become null and void, and all right, title and interest acquired by the county, under and by virtue of such tax deed, or tax sales, or delinquencies, shall cease and terminate.