The South Dakota Child support law Code 25-7-6 mentions the use of Income Shares Method on net income of parents for computing the child support amount.

• The support amount will be estimated taking into account the income earned by the parents and the parenting time spent by each parent.
• The state court has stipulated a basic amount as child support in addition to which the health care and education expenses will be compounded.
• Further, the financial conditions of both parents, independent financial resources of child, will also be looked into while determining the child support amount.
• The support will extend until the child reaches the age of eighteen or completes high school education whichever is earlier.