South Dakota Sales Tax Overview
As of 2026, South Dakota has an average combined sales tax rate of 5.597%, with rates ranging from 4.2% to 10.4% depending on your specific location. The state's sales tax is managed by the South Dakota Department of Revenue. South Dakota has a broad sales tax base including services. With 406 tracked jurisdictions, the actual rate you pay depends on a combination of state, county, and city-level taxes applied to your zip code.
The sales tax in South Dakota is composed of multiple layers. The state sets a base rate that applies uniformly across all jurisdictions. On top of this, individual counties and cities may add their own surcharges. This layered system means that the rate you pay can vary significantly even within the same state. For example, the lowest rate in South Dakota is 4.2% while the highest reaches 10.4% — a spread of 6.2%.
South Dakota Tax Examples (Average Rate)
* Based on average rate of 5.597%. Actual tax depends on your zip code.
Top Jurisdictions in South Dakota
Business Compliance in South Dakota
Businesses operating in South Dakota are required to register for a sales tax permit, collect the correct rate at the point of sale, and remit taxes on a regular filing schedule (monthly, quarterly, or annually depending on volume). Failure to collect and remit the correct amount can result in penalties, interest, and audit exposure from the state revenue department. If you sell online, be aware that economic nexus laws may also require collection in South Dakota if your sales exceed certain thresholds.
Frequently Asked Questions
What is the average sales tax rate in South Dakota?
The average combined sales tax rate in South Dakota is 5.597% as of 2026. This includes state, county, and local taxes.
What is the highest sales tax rate in South Dakota?
The highest combined sales tax rate in South Dakota is 10.4% in MARTIN (57551).
What is the lowest sales tax rate in South Dakota?
The lowest combined sales tax rate in South Dakota is 4.2% in UNION (51001).
How many tax jurisdictions does South Dakota have?
South Dakota has 406 tracked tax jurisdictions in our database. Each jurisdiction may have a different combined rate due to varying county and city taxes.
Does South Dakota charge sales tax on groceries?
Sales tax rules for groceries vary by state. In many states, unprepared food and grocery items are exempt or taxed at a reduced rate. Check with the South Dakota revenue department for specific exemption details, as rules can change annually.
How do I calculate sales tax in South Dakota?
To calculate sales tax in South Dakota, look up your specific zip code to find the exact combined rate. Multiply the purchase price by that rate. For example, at the average rate of 5.597%, a $100 purchase would incur $5.60 in tax.