South Dakota classifies business activity for sales-and-use tax under SDCL Ch. 10-45, with Sioux Falls layering a 2% municipal sales tax plus a 1% gross receipts tax on lodging, prepared food, and admissions.
Sioux Falls businesses register with the SD Department of Revenue for a sales tax license and select activity classes that drive remittance schedules and deductions. The state rate is 4.5%; Sioux Falls adds 2% municipal sales tax and 1% Bed, Board, and Booze (BBB) gross receipts on lodging, prepared meals, alcohol, and entertainment admissions. Service businesses face SD's broad service tax (one of the few states that taxes most services). Quarterly or monthly filings depend on volume, and contractors operate under a separate contractors excise (SDCL Ch. 10-46A) at 2%.
Failing to register, misclassifying activities, undercollecting sales tax, or skipping filings exposes businesses to SD DOR audits, penalties up to 10%, interest, and license revocation.
See how Sioux Falls's business tax classification rules stack up against other locations.
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