Minnesota sales-tax exemptions allow eligible businesses and organizations to make qualifying purchases without paying sales tax. The Minnesota Department of Revenue oversees the rules, and Form ST3 is the official certificate of exemption.
This article is an educational overview. Confirm current eligibility, forms, and renewal requirements with the Minnesota Department of Revenue.
Purchases That May Qualify
- Goods purchased for resale.
- Machinery and equipment used directly in manufacturing.
- Seeds, fertilizer, feed, and other qualifying agricultural supplies.
- Purchases by qualifying nonprofit organizations.
- Government purchases.
- Certain medical equipment and prescription drugs.
- Educational materials.
- Qualifying capital equipment used to manufacture, fabricate, mine, or refine products to be sold at retail.
- Certain utilities used in industrial or agricultural processes.
- Construction materials for qualifying tax-exempt projects.
The item, purchaser, use, and documentation determine whether an exemption applies.
Benefits for Businesses
Correctly applied exemptions can lower operating costs, improve cash flow, support growth, improve audit readiness, and free resources for innovation and job creation.
How to Apply
- Determine whether the organization and purchase qualify.
- Download and complete Form ST3.
- Provide proof of nonprofit status, a sales-tax permit, or other supporting records when needed. Charitable, educational, and religious organizations must first be approved for Nonprofit Exempt Status by filing Form ST16 with the Minnesota Department of Revenue, which asks for 60 days to make a determination.
- Give the completed certificate to vendors at purchase.
- Retain the certificate and supporting documentation.
- Update the certificate when the information on it changes.
Frequently Asked Questions
Does Form ST3 expire?
No. Form ST3 is a blanket certificate unless the buyer checks the single-purchase box, and it stays in force as long as the buyer keeps making purchases or until the buyer cancels it. Exemption certificates don't expire unless the information on them changes, but the Minnesota Department of Revenue recommends updating them every three to four years.
Do I send Form ST3 to the Department of Revenue?
No. The buyer gives the completed certificate to the seller, and the seller keeps it as part of its records. If the certificate isn't complete, the seller must charge sales tax.
Can a nonprofit use Form ST3 right away?
Not for the charitable, educational, or religious organization exemptions. The organization must first have exempt status authorization from the department, and it can't use that exemption for lodging or prepared food.
What happens if a buyer misuses Form ST3?
The buyer is responsible for knowing whether it qualifies. A buyer that claims an exemption it isn't eligible for can owe the tax plus interest and penalties, and using a certificate to evade tax can bring a $100 fine for each transaction.
What is Minnesota's sales tax rate?
The state general rate is 6.875%, and local taxes may apply on top of it. Most clothing is not taxable in Minnesota.
Best Practices
Keep certificates organized, update them every few years, verify vendor application, stay current on Minnesota rules, and train staff who handle procurement and finance.
Take Control with Kintsugi
Kintsugi can help distinguish taxable and exempt goods, apply configured rates, organize exemption records, and simplify sales-tax workflows.
Related resource: For current rates, nexus thresholds, filing deadlines, and FAQs, see Kintsugi's Minnesota Sales Tax Guide.
