South Dakota sales tax is charged at a state rate of 4.2% on most retail sales of goods, services, and electronically delivered products, with cities allowed to add up to 2% more.1South Dakota Department of Revenue. Taxes2South Dakota Department of Revenue. Sales and Use Tax Combined rates at the register usually land between 5% and 6.5%. What makes the state unusual isn’t the rate; it’s the base. South Dakota taxes a wider range of services and everyday purchases than nearly any other state, which trips up newcomers and anyone starting a business here.
The Current Rate and What Happens in 2027
The 4.2% state rate took effect July 1, 2023, when the legislature cut it from 4.5% through House Bill 1137.3South Dakota Department of Revenue. Department of Revenue Updates Tax System for Decrease in State Tax Rate The reduction has a sunset. Unless the legislature acts, the rate returns to 4.5% on July 1, 2027, and the statute already contains the future 4.5% language scheduled for that date.4South Dakota Legislature. South Dakota Code 10-45 – Retail Sales and Service Tax If you’re quoting a contract that runs past mid-2027, build in the possibility of the higher rate.
Local Taxes You’ll See at the Register
Cities can impose their own sales tax of up to 2%, collected on the same return as the state tax. Most municipal rates fall between 1% and 2%. The municipal tax applies based on where the customer receives the product or service, not where the seller sits.5South Dakota Department of Revenue. Municipal Tax
Two more local charges stack on specific industries. Cities can add a 1% municipal gross receipts tax on restaurants, bars, lodging, and admissions to amusement, athletic, and cultural events.2South Dakota Department of Revenue. Sales and Use Tax The state collects a separate 1.5% tourism tax on lodging, amusement services, and certain motor vehicle rentals.6South Dakota Department of Revenue. Tourism Tax A hotel stay in a city that levies every available tax can push the combined rate above 8%.
What Gets Taxed
The operating rule is simple: every sale of a product or service is taxable unless a specific exemption applies.7South Dakota Department of Revenue. Sales and Use Tax That default sweeps in a lot of transactions other states leave alone.
Professional Services
Legal fees, accounting work, engineering, consulting, and most other professional services are taxed at the same rate as physical goods. Most states exempt at least some professional services, so businesses relocating from elsewhere are often surprised to find they have to collect tax on their invoices.
Digital Products
Downloaded movies, music, e-books, software, and digital subscriptions are treated the same as tangible property. Both temporary access (a short-term movie rental, for example) and permanent downloads are taxable, and digital codes redeemable for electronic products carry the same tax as the underlying product.8South Dakota Department of Revenue. Products Transferred Electronically
Repair Services
Repair work on personal property is fully taxable, including both labor and parts. Shops hold a sales tax license and charge tax on the total bill. They can buy replacement parts tax-free with a resale certificate because the end customer pays tax on the combined charge.9South Dakota Legislature. Administrative Rule 64:06:02:58 – Repair Services
Groceries
Food is taxed at the full state rate. Voters rejected Initiated Measure 28 in 2024, which would have exempted groceries, so food still carries 4.2% plus any applicable municipal tax. It’s one of the first things people notice when they move here from states that don’t tax food.
Common Exemptions
South Dakota carves out specific categories from the taxable default. Each exemption needs documentation that can hold up in an audit.
Purchases for Resale
Goods and services bought for resale are exempt when the buyer provides a properly completed exemption certificate. Sellers keep these certificates on file for three years.10South Dakota Department of Revenue. Exemption Certificate Misusing a resale certificate to avoid tax is a Class 1 misdemeanor, and the Department of Revenue can add a penalty of up to 50% of the tax owed.11South Dakota Legislature. South Dakota Code 10-45-61 – Exemption Certificate Filed with Intent to Evade Tax
Agricultural Inputs
Fertilizer purchased in quantities of 500 pounds or more and pesticides used exclusively for agricultural purposes are exempt. Products applied alongside pesticides for crop protection, such as surfactants and drift retardants, also qualify.12South Dakota Department of Revenue. Agricultural Services
Government, Schools, and Nonprofits
Purchases by government agencies, public schools, nonprofit hospitals, religious educational institutions, and certain charitable relief agencies qualify when three conditions are met: an authorized official presents an exemption certificate at the time of purchase, payment comes from the entity’s own funds, and title stays in the entity’s name.13South Dakota Department of Revenue. Exempt Entities Private educational institutions can also qualify if they meet 501(c)(3), accreditation, and in-state campus requirements, though purchases for personal use by employees or members stay taxable.4South Dakota Legislature. South Dakota Code 10-45 – Retail Sales and Service Tax
Healthcare
Health services provided by licensed practitioners, clinics, and hospitals are exempt from both state and municipal sales tax. The list of qualifying providers covers physicians, dentists, chiropractors, optometrists, physical therapists, psychologists, nurses, and many others.14South Dakota Department of Revenue. Health Services, Drugs, and Medical Devices
Use Tax on Out-of-State Purchases
If you buy something from outside South Dakota and the seller doesn’t collect sales tax, you owe use tax at the same 4.2% state rate. If the seller collected another state’s tax at a lower rate, you owe the difference.2South Dakota Department of Revenue. Sales and Use Tax This covers online purchases, catalog orders, and anything brought into the state for personal or business use.
The Department of Revenue provides an online individual use tax return so consumers can calculate and pay what they owe. Businesses with a sales tax license report use tax on their regular return.2South Dakota Department of Revenue. Sales and Use Tax Check your order confirmations. If no sales tax appears on the receipt, you probably owe use tax.
Remote Sellers and Online Marketplaces
Any business without a physical location in South Dakota must obtain a sales tax license and collect tax once it has more than $100,000 in gross sales into the state during the previous or current calendar year.15South Dakota Department of Revenue. Remote Seller Bulletin Gross sales include selling, renting, or leasing products and services delivered into South Dakota, electronic products included.
Sellers who cross the threshold must register by the first day of the month that starts at least 30 days after they hit $100,000. If you exceeded the threshold last year, you need to be licensed for the entire current year. If you cross it mid-year, you’re responsible from that point forward.15South Dakota Department of Revenue. Remote Seller Bulletin
Marketplace facilitators such as Amazon or Etsy have their own obligation. A marketplace provider must collect and remit South Dakota tax if it facilitates sales for one or more third-party sellers who collectively meet the $100,000 threshold. The provider must notify its sellers that it’s handling the tax, and a hold-harmless provision limits penalties when the provider relies on inaccurate product information from a seller.16South Dakota Department of Revenue. Marketplace Provider Bulletin
Construction Is Different: Contractor’s Excise Tax
Construction work isn’t under the standard sales tax at all. Anyone contracting to build, install, or repair fixtures attached to real property needs a contractor’s tax license and pays a 2% excise tax on gross receipts. Because the excise tax applies to receipts that include any tax collected from the customer, contractors preparing bids commonly use a 2.041% bid factor. Prime contractors issue exemption certificates to their subcontractors for each project. A subcontractor without a certificate on file is treated as the prime and becomes responsible for the excise tax on the entire project.17South Dakota Department of Revenue. Contractor’s Excise Tax
Getting a Sales Tax License
Applying is free and done online through the Department of Revenue’s tax license application portal.18South Dakota Department of Revenue. Tax License Applications You’ll need your Federal Employer Identification Number (or Social Security Number for sole proprietors), the legal name of the business, physical and mailing addresses, and the NAICS code for your primary activity.
You’ll estimate your expected tax liability during the application so the Department can assign a filing frequency ranging from monthly to semi-annual.7South Dakota Department of Revenue. Sales and Use Tax As your sales grow, the Department may move you to a more frequent schedule.
Filing, Penalties, and Records
Licensed businesses file electronically through the Department’s online portal. State sales, use, and municipal taxes all go on the same return.5South Dakota Department of Revenue. Municipal Tax You can pay by credit card, ACH debit, or ACH credit, and the confirmation number you get after submitting is worth keeping as proof of timely filing.19South Dakota Department of Revenue. Filing and Paying Taxes Online Help
Late returns cost real money. If a return isn’t received within 30 days of its due date, the Department assesses a penalty of 10% of the tax liability, with a $10 minimum even if no tax is owed. Interest runs at 1% per month on any unpaid balance, with a $5 minimum for the first month. Payments apply to the oldest tax first, then interest, then penalties, so a partial payment won’t necessarily stop new interest from accumulating on the remaining balance.20South Dakota Department of Revenue. Sales and Use Tax Laws and Regulations
Keep sales tax records for at least three years. That includes receipt books, invoices, bills of lading, and copies of bills of sale.21South Dakota Legislature. South Dakota Code 10-52A-9 – Preservation of Records The secretary of revenue can authorize earlier disposal in writing, but without that permission three years is the floor. Exemption certificates follow the same three-year rule.10South Dakota Department of Revenue. Exemption Certificate