What is South Dakota Sales Tax Calculator?
South Dakota Sales Tax Calculator — The South Dakota sales tax is a consumption tax of 4% levied by the state on retail purchases, with local jurisdictions adding up to roughly 2% more (maximum combined 6%).
This page calculates South Dakota sales tax with the same rate table the main calculator uses: 4% state base rate, plus local rates that can add up to roughly 2% depending on the city and county — a maximum combined rate of 6%. The table below precomputes common purchase amounts at both the state-only and maximum combined rates; the calculator handles any amount, including reverse calculations ("price included tax — how much was the tax?").