Idaho Code § 43-2533
At any time within two (2) years from the date of any delinquency certificate, the owner of the property described therein, or anyone on his behalf, may redeem such property by paying to the treasurer the amount stated in such certificate together with interest thereon at the rate of ten percent (10%) per annum, from date thereof to the last day of the month in which such redemption is made. Thereupon the treasurer shall issue to the redemptioner a certificate of redemption which shall state the name of the redemptioner, the date of redemption, the number of the certificate so redeemed, the description of the property contained therein, and the name of the local improvement district for which said certificate was issued. In case said certificate has not been assigned, the treasurer shall note such upon the original and duplicate delinquency certificate; if assigned upon the duplicate certificate the fact that the same has been redeemed, the date of redemption and shall note the same upon the local improvement delinquency certificate register and the local improvement installment docket; provided, that no redemption of any such certificate shall be allowed unless all assessments which have become due subsequent to the one for which said delinquency certificate shall have been issued with penalties, and interest at the rate of ten percent (10%) per annum from date of said delinquency to the end of the month in which the same is redeemed, shall be paid, which fact together with the amount paid shall be stated upon the redemption certificate. The money received from the redemption of any property described in a certificate which has been assigned shall be deposited by the treasurer to the credit of the person named in the last assignment of such certificate. The treasurer shall thereupon give notice to such person at the address shown by the record of such deposit, and such person shall thereafter be paid the same by the treasurer, without additional interest, upon surrender of such certificate to the treasurer who shall mark the same "paid" and hold it as a voucher.
Idaho Code § 43-2533