South Dakota's remote seller sales tax rule
When must an out-of-state service business collect South Dakota sales tax?
The $100,000 threshold in plain terms
An out-of-state business with more than $100,000 in gross sales into South Dakota in the previous or current calendar year must obtain a sales tax license and collect South Dakota sales tax on its taxable sales.
Gross sales means selling, renting or leasing products or services into the state, including products delivered electronically. A consultancy billing South Dakota clients from another state counts its service receipts toward the same threshold a store counts its orders.
The rule has applied to remote sellers since November 1, 2018, under the chapter of state law the Department cites as SDCL chapter 10-64. A business with any physical presence in South Dakota skips the threshold entirely: physical presence means licensing, with no minimum.
$100,000South Dakota requires out-of-state businesses with more than $100,000 in gross sales into the state in the previous or current calendar year to obtain a sales tax license and collect. — South Dakota Department of Revenue, retrieved 2026-09-29
South Dakota gross sales for the remote seller threshold include selling, renting or leasing products or services, including products delivered electronically, into South Dakota. — South Dakota Department of Revenue, retrieved 2026-09-29
The thirty-day clock and how it starts
Remote sellers register by the first day of the month that starts at least thirty days after the threshold is met. The Department's own example: a seller whose in-state gross revenue crosses $100,000 on May 28 does not register and begin collecting until July 1.
That clock is a grace period for preparation, not a delay to argue with. The Department's bulletin says plainly that it understands preparatory steps take time, and it invites businesses with concerns about the timeframe to contact it directly.
Cross the threshold in the current calendar year and the same clock applies. Meet it in the previous year and the registration obligation stands from the start of the year.
30 daysSouth Dakota remote sellers register by the first day of the month starting at least thirty days after the threshold is met; crossing on May 28 means collecting from July 1. — South Dakota Department of Revenue, retrieved 2026-09-29
Why this rule exists the way it does
South Dakota's remote seller law is the one that changed the country's rules. The state enacted a threshold covering sellers that deliver more than $100,000 of goods or services into the state annually, and in South Dakota v. Wayfair, decided June 21, 2018, the Supreme Court upheld the Act, overruling the old physical-presence rule that dated back through Quill and National Bellas Hess.
The Court's holding is why nearly every state now runs a threshold of this shape. The law the Court upheld covered only sellers that, on an annual basis, deliver more than $100,000 of goods or services into the state or engage in 200 or more separate transactions.
This page otherwise sticks to what the Department itself publishes about administering the rule: $100,000 in gross sales, thirty days, a license with no fee. What matters for a service business is that the gross includes services, not just shipped goods.
June 21, 2018In South Dakota v. Wayfair, decided June 21, 2018, the Supreme Court upheld South Dakota's remote seller law and overruled the physical-presence rule of Quill and Bellas Hess. — Supreme Court of the United States, retrieved 2026-09-29
$100,000 or 200 transactionsThe South Dakota law upheld in Wayfair covered only sellers that, on an annual basis, deliver more than $100,000 of goods or services into the state or engage in 200 or more separate transactions. — Supreme Court of the United States, retrieved 2026-09-29
Marketplace platforms and the selling you do through them
A marketplace provider that facilitates the sales of sellers meeting the remote seller criteria must license and remit the tax on the sales it facilitates. Where a marketplace remits the tax on a South Dakota business's sales through it, that business is not responsible for remittance on those sales.
For a service business selling through booking platforms and app marketplaces, that sentence splits the work. What the platform remits, the seller does not remit again. What the seller books directly, the seller owes.
The marketplace rules have applied since March 1, 2019. Platform-remitted tax does not remove the license question for the rest of the business's sales, so read the platform's seller terms against the Department's marketplace guidance before assuming which side of the split a booking falls on.
March 1, 2019Since March 1, 2019, South Dakota marketplace providers meeting the remote seller criteria must license and remit tax on sales they facilitate, and the seller does not remit again on those sales. — South Dakota Department of Revenue, retrieved 2026-09-29
Registering from outside the state
Apply for the license online, or through the Streamlined Sales Tax registration system, which covers South Dakota together with the other member states in one application. For a business now facing several states' thresholds, Streamlined is the route the Department itself points to.
Once licensed, the filing calendar is the same as an in-state business's: a return every period, electronic returns due the 20th and electronic payments the 25th, and the same 10% late penalty. The filing guide covers the mechanics, and the license guide covers the application.
An in-state seller with out-of-state customers meets the same line from the other side: sales delivered outside South Dakota are not taxed here, and each destination state's rules are its own. The rates page holds the South Dakota side of that boundary.
South Dakota remote sellers may apply online or through the Streamlined Sales Tax system, which the Department recommends for multi-state registration. — South Dakota Department of Revenue, retrieved 2026-09-29
10%South Dakota electronic returns are due the 20th of the month and electronic payments the 25th, with a late-filing penalty of 10% of the tax liability and a $10 minimum. — South Dakota Department of Revenue, retrieved 2026-09-29
Questions
Does the threshold count transactions as well as dollars?
The Department's current published guidance states the $100,000 gross sales threshold without a transaction count. Gross sales include selling, renting or leasing products or services, including products delivered electronically, into South Dakota.
I sell services only, not products. Does the threshold reach me?
Yes. Gross sales for the threshold include services sold into South Dakota, not only shipped products. A service business billing South Dakota customers from another state counts those receipts.
What if I cross $100,000 in December?
The clock is the first day of the month that starts at least thirty days after the threshold is met. In the Department's example, crossing on May 28 means registering and collecting from July 1, so a late-December crossing points at the new year's first qualifying month.
Does my platform's remittance count toward my own compliance?
Where a marketplace provider remits South Dakota sales tax on sales it facilitates for you, you are not responsible for remittance on those sales. Sales you book directly are still yours to license, collect and remit.