SDCL § 11-9-25: Allocation to municipality of tax increments--Duration of allocation.

Positive tax increments of a district shall be allocated to the municipality that created the district for each year from the date when the district is created until the municipality has been reimbursed for expenditures previously made, has paid all monetary obligations, and has retired all outstanding tax increment bonds. However, in no event may the positive tax increments be allocated longer than twenty years after the calendar year of creation.