People exempt from sales tax fall into four groups: government agencies (federal, state, and local), qualifying nonprofits, businesses buying goods for resale or for use in production, and foreign diplomats with State Department credentials. Certain products are also exempt no matter who buys them, most commonly unprepared groceries and prescription drugs. Five states — Alaska, Delaware, Montana, New Hampshire, and Oregon — have no statewide sales tax, so the question doesn’t come up on purchases made there. In the other 45 states and the District of Columbia, an exemption isn’t automatic: you have to know which category you fit and hand the seller the right paperwork.
Federal, State, and Local Government
Federal agencies are exempt from state sales tax in every state and U.S. territory. The legal basis is the Supremacy Clause, which prevents states from taxing the federal government. In practice, that exemption applies automatically when a federal employee pays with a centrally billed account — one where the government itself is liable for the charge. If the same employee uses an individually billed account and gets reimbursed later, the state is not required to honor the exemption.1General Services Administration. GSA SmartPay Smart Bulletin No. 020 – What You Need to Know About State Taxes The same agency buying the same item can be taxable or tax-free depending on how it’s billed.
State and local government agencies are generally exempt from their own state’s sales tax. Municipal offices, public school districts, and state universities usually qualify. The mechanics vary by state, but the underlying idea is that taxing an agency funded by state revenue just moves money from one government pocket to another.
Foreign Diplomats
Foreign diplomats and employees of qualifying international organizations receive sales tax exemptions under the Vienna Convention on Diplomatic Relations and the Vienna Convention on Consular Relations. The State Department’s Office of Foreign Missions runs the Diplomatic Tax Exemption Program and issues tax exemption cards that diplomats present at checkout. Merchants can verify a card through the State Department’s website.2United States Department of State. Diplomatic Tax Exemptions
Nonprofits
Charitable organizations recognized under Internal Revenue Code Section 501(c)(3) — religious organizations, schools, and groups organized for scientific, educational, or literary purposes — are exempt from federal income tax.3Office of the Law Revision Counsel. 26 USC 501 – Exemption From Tax on Corporations, Certain Trusts, Etc. Here is the part that catches nonprofits by surprise: federal tax-exempt status does not automatically give you a state sales tax exemption. Most states require a separate application through the state revenue or taxation department, and the eligibility rules can be narrower than the federal test. Some states cover only certain kinds of nonprofits; others limit the exemption to purchases directly connected to the group’s charitable mission.
Federal status also has strings attached. Keeping it means no private benefit from net earnings, no substantial lobbying beyond permitted thresholds, and no participation in political campaigns for or against candidates.3Office of the Law Revision Counsel. 26 USC 501 – Exemption From Tax on Corporations, Certain Trusts, Etc. Losing federal status can also cost you a state exemption that was granted based on it.
Businesses Buying for Resale or Production
Businesses buying inventory they plan to resell are generally exempt on those purchases. Sales tax is designed to be collected once, from the final consumer, so a retailer buying from a wholesaler doesn’t pay it — the retailer’s customer will. To claim the exemption, the buyer gives the seller a resale certificate stating that the goods are for resale.
Manufacturers and farms get similar treatment for materials that physically become part of a finished product. Raw materials, ingredients, component parts, and product packaging are frequently exempt. The line most states draw is between what goes into what you sell and what supports your operation. Steel that becomes part of a tractor qualifies. The office printer that prints invoices for the tractor does not. Seed, fertilizer, and livestock feed usually qualify under the same reasoning: they’re consumed in producing goods that will eventually reach consumers.
The Use Tax Trap
One of the most common compliance failures involves items pulled from tax-exempt inventory for the business’s own use. Take an item you bought tax-free for resale and put it in the break room, give it away as a gift, or donate it, and you owe use tax on the cost. Use tax exists to close exactly this gap, and it applies at the same rate as the sales tax you avoided. Many businesses first learn about it during an audit, when back taxes and interest have already piled up.
Drop Shipments
Drop shipments add a wrinkle. When a retailer sells a product but has a third-party supplier ship it directly to the customer, someone has to sort out who owes tax on which leg of the transaction. In most states, the retailer gives a resale certificate to the drop shipper, and the drop shipper is off the hook for tax on the shipment. Among the states in the Streamlined Sales Tax Agreement, a drop shipper who receives a completed exemption certificate from the retailer is not liable for sales tax on products delivered to the retailer’s customer.4Streamlined Sales Tax. Exemptions A smaller number of states treat the drop shipper as the retailer and want the end customer’s exemption paperwork instead.
Products Exempt for Everyone
Some goods are tax-free regardless of who’s buying, on the reasoning that taxing necessities weighs hardest on lower-income households.
Unprepared grocery food is the biggest category. Roughly 33 states and the District of Columbia fully exempt grocery staples from state sales tax, and a handful more tax them at a reduced rate. Most states draw a line between unprepared food you’d cook at home and prepared food you’d eat immediately, exempting only the former.
Prescription medications are exempt in virtually every state, with only rare exceptions applying a reduced rate. Medical devices like prosthetics, hearing aids, and oxygen equipment are also exempt in most jurisdictions.
Tax Holidays
Many states run temporary sales tax holidays, often around the back-to-school season, when specific categories of goods sell tax-free to everyone. Clothing, footwear, school supplies, and backpacks under a per-item price threshold are the usual qualifiers. The threshold is often around $100 per item, though it varies by state and by item type. You don’t need any special status or paperwork to buy at the holiday rate.
How You Actually Claim an Exemption
Claiming an exemption at the register requires paperwork, not a verbal claim. The buyer hands the seller an exemption certificate that identifies who’s buying, the legal basis for the exemption, and what’s being purchased.
Several standard forms exist. The Multistate Tax Commission publishes a Uniform Sales and Use Tax Resale Certificate accepted in many jurisdictions.5Multistate Tax Commission. Uniform Sales and Use Tax Resale Certificate – Multijurisdiction The 24 member states of the Streamlined Sales Tax Agreement accept a single Streamlined exemption certificate across all of them.4Streamlined Sales Tax. Exemptions Many states also have their own forms. A Federal Employer Identification Number or state-issued sales tax ID number goes on the certificate as the main identifier.
Blanket Certificates vs. Single-Purchase Certificates
For a one-time exempt purchase, you fill out a certificate for that transaction. For recurring purchases from the same vendor, a blanket certificate is more practical. It stays on file with the seller and covers future qualifying transactions between you without a new form each time.5Multistate Tax Commission. Uniform Sales and Use Tax Resale Certificate – Multijurisdiction Some states put an expiration on blanket certificates and require periodic renewal, so check your state’s rules.
What Goes on the Form
A properly completed certificate has the buyer’s name and address, the seller’s name, the buyer’s tax ID number, a description of the goods, and the specific exemption reason being claimed. Missing fields or vague descriptions are the fastest way to get a certificate thrown out during an audit. The seller reviews the certificate, confirms it’s complete on its face, and keeps it on file.
Out-of-State and Online Purchases
Exempt buyers who purchase from out-of-state or online vendors face extra steps. Since the Supreme Court’s 2018 decision in South Dakota v. Wayfair, states can require remote sellers to collect sales tax once they cross an economic nexus threshold, even without a physical presence in the state. Online retailers now collect tax in most states, and exempt buyers have to give those retailers the same documentation they would give a local store.
Online vendors typically offer a portal where you upload your exemption certificate and link it to your account for future tax-free orders. If a buyer claims an exemption they aren’t entitled to, the buyer — not the seller — owes the tax, interest, and penalties. A seller who accepts a completed certificate in good faith, without soliciting an improper exemption, is generally protected.6Streamlined Sales Tax. FAQs – Information About Streamlined
Penalties for Misusing an Exemption
Using an exemption certificate fraudulently — claiming resale on something you’re keeping for personal use, for example — costs a lot more than the tax you avoided. States treat this seriously because every bad certificate is lost revenue and an unfair edge over businesses that pay what they owe.
Penalty structures vary, but the pattern is consistent. Most states add a percentage-based penalty on top of the unpaid tax, commonly running from 25% to 100% of the amount owed, with higher figures possible for intentional fraud. Criminal penalties can also apply: misdemeanor charges with fines in the thousands and potential jail time are on the books in many jurisdictions. Interest accrues on the unpaid tax from the date it was originally due, which on longstanding misuse can add up to a large sum by itself.
Honest mistakes happen, and most states distinguish between negligent errors and intentional fraud when calculating penalties. But “I didn’t know” is a hard defense when the certificate you signed includes a written declaration that the purchase qualifies. The safe rule is short: use exemption certificates only for purchases that actually qualify, keep your documentation current, and refresh blanket certificates when your circumstances change.