S.D. Codified Laws § 13-16-11
The county auditor shall have the power and the duty to levy a tax from year to year against the property of the district in accordance with such resolution to meet said bond redemption fund payments when due without further notice or demand from such school district, provided, however, that if a surplus in the bond redemption fund exceeds the principal and interest requirements for one year in addition to such requirements for the current year, the school board may by resolution, determine the amount of such surplus and certify said amount to the county auditor on or before September first and the county auditor shall thereupon be authorized to reduce the required levy for the bond redemption fund to be spread upon the tax list for collection in the following year by the amount so certified.
SDCL 13-16-11