Idaho Code § 42-2033: Redemption by owner.

At any time within nine months after the foreclosure sale by the sheriff of the land and water rights aforesaid, the original owner against whom the lien has been foreclosed, may apply to the person, company of persons, association or incorporated company, purchasing at such sale, to redeem such land and water rights and the purchaser shall assign the certificate of sale of such land and water rights to such original owner, upon the payment by him within such nine months, of the amount of the lien for which the same was sold at such foreclosure sale, together with the interest, costs and fixed charges thereon. In case the original owner shall redeem the land and water rights sold as aforesaid, he shall file for record in the office of the recorder, the certificate of sale assigned to him by the purchaser as aforesaid, upon his redemption of such land and water rights.