15-6-424. Assessments; purchaser's lien; interest. The purchaser at any sale authorized in this chapter acquires a lien on the property bid in by him for the amount paid plus all taxes and delinquent assessments, or delinquency and all interest, penalties, costs and charges he paid thereon whether levied before or after the sale for state, county, city or town purposes. The purchaser is entitled to interest at the rate of twelve percent (12%) per year on the original amount he paid from the date of the sale and upon subsequent payments from the date of payment of the respective amounts.
Wyoming Legal Code