S.D. Codified Laws § 10-21-35
Any person who has purchased an interest in any real property causing the property to be divided and files all legal documents with the register of deeds may request the director of equalization to divide the assessed value between each property. The person requesting the assessed value to be divided shall pay the share of taxes against the real property without requiring the immediate payment of the taxes charged against the remaining property. The taxes shall be divided according to any agreement made by the purchaser and seller; if there is no agreement, the taxes shall be divided by the proportionate area purchased. The tax receipt shall show the portion of the taxes paid and the name and address of the person paying the tax.
SDCL 10-21-35