Agar, South Dakota sales tax rate: 4.2%
Last updated Checked monthly
The sales tax rate in Agar, South Dakota is 4.2%. That’s the 4.2% state rate, with no local taxes. It’s the lowest of the 15 South Dakota cities we checked.
Calculated by the 
Sales Tax APIThe same engine Zamp customers use.Agar combined rate
4.2%
- South Dakota state
- 4.2%
Agar sales tax calculator
Enter a price and what you’re selling.
- South DakotaState · 4.2%$4.20
Charging this at checkout? Zamp calculates it on every order and files the returns.
Book a demoAgar sales tax rate breakdown
State taxes add up to 4.2%.
| Jurisdiction | Type | Rate |
|---|---|---|
| State of South Dakota | State | 4.2% |
| Combined rate | 4.2% |
Rate history
- July 20234.2%
- July 20244.2%
- July 20254.2%
- July 20264.2%
- Today4.2%
No change since July 2023.
Sales tax near Agar
Closest cities
- Pierre34 mi6.2%
- Aberdeen89 mi6.2%
- Huron97 mi6.2%
- Mitchell127 mi6.2%
- Watertown143 mi6.2%
- Box Elder157 mi6.2%
- Rapid City164 mi6.2%
- Brookings166 mi6.2%
Charge the right rate in Agar, on every order.
Zamp calculates tax at each customer’s address, then files and pays every South Dakota return for you, with a sales tax team you can call.
Agar sales tax questions.
Still have questions? Call us at 1-866-438-9267 or email us at support@zamp.com.
What is the sales tax rate in Agar, South Dakota?
The combined sales tax rate in Agar is 4.2% as of November 3, 2026. It’s made up of 4.2% South Dakota state tax.
Does the sales tax rate vary within Agar?
Agar has no special-district taxes, so most addresses in the city pay the same 4.2%: South Dakota’s 4.2%. This rate was calculated for Agar’s 57520 ZIP code; the calculator prices any exact address.
Is SaaS taxable in Agar?
Yes, at the full 4.2%.
Do online sellers have to collect sales tax in Agar?
Yes, if they have nexus in South Dakota: more than $100,000 in South Dakota sales in the previous or current calendar year, or a physical presence in the state. They register with the South Dakota Department of Revenue and charge the rate at the buyer’s address.
Sources. South Dakota Department of Revenue · Zamp Sales Tax API, for Agar’s 57520 ZIP code. Rates are checked monthly and are for information, not tax advice.
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Zamp registers you, calculates every order at the customer’s address, files every South Dakota return and handles notices, with a sales tax team you can call.
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