Sales tax in the United States is meant to be paid once, by the person who finally uses the product. A shop buys 500 phone cases from a wholesaler and sells them to customers. The tax belongs on the sale to the customer, not on the sale to the shop.
A resale certificate is the piece of paper that makes this work. The buyer gives it to the seller. It says: I am buying these goods in order to resell them, so do not charge me sales tax on this purchase. The seller then sells to that buyer without collecting tax.
Two things about this surprise founders. In Texas the certificate is not filed with the state at all. Form 01-339 says so on its face: furnish it to the supplier, and do not send the completed certificate to the Comptroller. Your supplier is the one who has to keep it. And the criminal risk sits with the buyer. If you hand a supplier a resale certificate for goods you know, at the time of purchase, you are buying to use rather than to resell, Texas treats that as a crime, and the seriousness of the crime depends on how much tax you avoided.
What the rule actually requires
Every state that charges sales tax runs its own version of this system. We will use Texas as the example, because the Texas Comptroller publishes both the rules and the form. The Texas form is Form 01-339.
Five rules matter.
1. A valid certificate stops the seller from collecting tax. If a buyer is purchasing goods for resale and gives the seller a properly completed resale certificate, the seller does not collect sales tax on that sale. The purchase is not tax-free forever. The tax simply moves to the next sale, the one you make to your own customer.
2. The certificate is the seller's evidence, and the seller keeps it. The Texas Comptroller describes the resale certificate as the seller's documentation of why sales tax was not collected on a sale. The seller has to keep it for four years. If a state auditor later asks the seller why one invoice has no tax on it, the certificate is the answer. Without it, the seller has no explanation for money it did not collect.
3. The seller has to check the certificate, not just file it. In Texas the seller is responsible for making sure the certificate is properly completed. A supplier who takes whatever you send and drops it in a folder has not done the job. This is why serious wholesalers ask you to redo a form that is missing information, and why they sometimes refuse to ship until they have it.
4. Knowing misuse of a certificate is a crime, and the crime is graded by the amount of tax. The offense turns on what you knew when you bought. Form 01-339 states the test: it is a criminal offense to give a resale certificate for taxable items that you know, at the time of purchase, are being bought for use rather than for resale, lease or rental. Texas then scales the offense to how much tax was avoided. At the low end, where less than $20 of tax is involved, it is a Class C misdemeanor. At the high end, where the amount reaches $20,000 or more, it is a second-degree felony. The offenses in between are graded on the same measure. The point to take from this is not the exact bands. It is that the state treats a resale certificate as a statement you are making, and it punishes knowingly false statements according to their size.
Buying stock in good faith and later taking an item out of inventory for your own use is a different thing, and it is not that crime. The Comptroller's answer there is tax, not prosecution. If you use merchandise you bought with a resale certificate, you owe sales tax on it, measured either by the fair market rental value for the period you used it or by your purchase price.
5. The Texas certificate asks for a number, and it only covers resale in the United States or Mexico. Form 01-339 has a line for your Texas Sales and Use Tax Permit Number, which must contain 11 digits, or, for an out-of-state retailer, an out-of-state registration number. Retailers based in Mexico give an RFC number and attach a copy of their Mexican registration. The exemption certificate on the back of the same form says it does not require a number to be valid. The resale side says the opposite by asking for one. The Comptroller also limits where the resale may happen: you can issue a resale certificate if you intend to resell the items in the United States or in Mexico, but not in any other country.
One more practical fact. The forms are not the same everywhere. The 24 Streamlined member states accept a uniform certificate published by the Streamlined Sales Tax Governing Board. Texas is not a member state, so a Texas purchase needs Form 01-339. Before you send anything to a supplier, look up the current form on the website of the tax authority for that state, usually called the Department of Revenue, and in Texas the Comptroller.
🇺🇸 If the IRS counts you as a U.S. person
Nothing on this page changes because of your status.
The green card test and the substantial presence test decide federal income tax. A resale certificate belongs to a different system: state sales tax. The state is not asking who you are. It is asking one question about the transaction. Are these goods being bought for resale?
So being a U.S. person does not qualify you to use a resale certificate, and it does not disqualify you either. An American company that buys a laptop for its own staff cannot use a resale certificate for that laptop. A company that buys 500 phone cases to sell on can.
What you should do is the same thing a non-resident should do. Find the current form for the state you are buying in. Fill it out completely, including the permit or registration number it asks for. Give it to the supplier. Keep your own copy, because the supplier will sometimes ask for a fresh one, and because you may need to show what you claimed.
🌏 If it does not
Nothing on this page changes for you either. This is one of the few pages in this guide where the two lanes give the same answer, and it is worth being clear about why.
Sales tax is charged by states, not by the federal government. It is triggered by a sale of goods inside a state. It does not care about your passport, your visa, your day count in the United States, or whether you file a Form 1040 or a Form 1040-NR. A founder in Seoul who owns a Wyoming LLC and buys inventory from a Texas wholesaler faces the same test, on this one question, as a founder in Austin. Are the goods for resale?
Two other things do stand between you and a usable certificate, and neither of them is your federal residency. Keep them separate in your head.
The first is a number. The Texas resale certificate has a line for a Texas Sales and Use Tax Permit Number, or an out-of-state retailer's registration number, or a Mexican RFC number. There is no blank on it for a purchaser who is registered nowhere. Registration requirements differ by state, so check the tax authority of the state you are buying in before you send a certificate.
The second is geography, and it catches founders selling from outside the country. The Texas Comptroller says you can issue a resale certificate if you intend to resell the items in the United States or in Mexico, but not in any other country. If you buy from a Texas wholesaler to ship to customers in Korea, that is outside what the Texas certificate covers. Note what this limit is measured on. It is where the goods are resold, not where you live. A founder in Austin who resells only to customers in Korea hits the same wall.
Where the two lanes meet
Most pages in this guide end with a table showing how the answers split. Here the table shows the opposite. On this rule, the two lanes do not split at all.
| Item | 🇺🇸 U.S. person | 🌏 Not a U.S. person |
|---|---|---|
| What decides whether you can use a resale certificate | Whether the goods are for resale | Whether the goods are for resale |
| Which government sets the rule | The state | The state |
| Who keeps the certificate | Your supplier | Your supplier |
| How long the supplier keeps it (Texas) | Four years | Four years |
| Who must check that the form is complete | The seller | The seller |
| What the Texas form asks you for | A permit or registration number | A permit or registration number |
| Where the goods may be resold (Texas) | United States or Mexico | United States or Mexico |
| Penalty for certifying resale on goods you know you will use (Texas) | Criminal, graded by tax avoided | Criminal, graded by tax avoided |
| If you later take stock for your own use (Texas) | Sales tax owed on that item | Sales tax owed on that item |
| Where the form comes from | The state tax authority | The state tax authority |
Read the table again as a single sentence. Your federal tax residency does not appear in it once.
Common mistakes
🇺🇸 If the IRS counts you as a U.S. person
- Using a resale certificate on things you know at the time of purchase the business will consume itself, such as laptops, packaging you keep, or office furniture. Those are not being resold. In Texas that is not a paperwork error, it is a criminal offense scaled to the tax you avoided.
- Assuming the reverse, that any item you end up using makes you a criminal. If you bought stock in good faith for resale and later pulled an item out for your own use, what you owe is sales tax on that item, not a defense lawyer.
- Sending one state's form to a supplier in another state. Forms differ, and a form the seller cannot rely on is a form that does not protect the seller, which is why they will come back and ask for a different one.
- Assuming a resale certificate means you never collect sales tax. It does the opposite. It moves the tax to the sale you make to your customer.
🌏 If it does not
- Assuming that because you owe no U.S. income tax, U.S. sales tax does not reach you. These are two different taxes, charged by two different governments, on two different things.
- Assuming the Texas certificate covers goods you will resell anywhere in the world. The Comptroller limits it to resale in the United States or Mexico.
- Sending a certificate with the number line blank. The Texas form asks for a Texas permit number or an out-of-state registration number, and a form the seller cannot rely on is a form the seller will send back.
- Assuming that a certificate you gave a supplier once covers every purchase forever, in every state. Suppliers ask again, and states change their forms.
- Assuming nobody will check because you are abroad. The person who checks is your supplier, and they check because the certificate is the only proof they have for the tax they did not collect.
FAQ
What does a resale certificate actually do?
It tells your supplier not to charge you sales tax, because you are buying the goods to resell them rather than to use them. The tax is not cancelled. It moves to the sale you make to the person who finally uses the product.
Do I file the resale certificate with the state?
No. You give it to the seller. In Texas the seller has to keep it for four years, because it is the seller's proof of why no tax was collected on that sale.
Can I use a resale certificate to buy a laptop for my own business?
No, unless you are actually reselling the laptop. A certificate says the goods are for resale. Giving one for goods you know at the time of purchase you will keep and use is a criminal offense in Texas, graded by how much tax was avoided, from a Class C misdemeanor below $20 of tax up to a second-degree felony at $20,000 or more.
What if I take something out of my resale stock and use it?
Then you owe sales tax on that item. The Comptroller measures it either by the fair market rental value for the period you used it or by your purchase price. This is the ordinary outcome for stock you bought in good faith and later used. It is not the criminal case, which is about what you knew when you bought.
Does one state's resale certificate work in every state?
No. Each state runs its own system. The 24 Streamlined member states accept a uniform certificate published by the Streamlined Sales Tax Governing Board, and other states accept only their own form. Texas is not a Streamlined member, so a Texas purchase needs Form 01-339. Check the tax authority of the state you are buying in, and use the form it publishes.
I live outside the United States. Can I still use a resale certificate?
Your residency for federal tax is not the question here. Sales tax is a state matter, and the state is asking whether the goods are for resale. Two other things do matter. The Texas form asks for a Texas sales and use tax permit number, or an out-of-state retailer's registration number, or a Mexican RFC number, so you need one of those to complete it. And Texas lets you issue a resale certificate only if you intend to resell the goods in the United States or in Mexico, not in any other country. Registration rules differ by state, so ask the state you are buying in.
What happens if my supplier loses the certificate?
That is the supplier's problem first, because the certificate is their evidence and they are the ones required to keep it for four years in Texas. In practice it becomes your problem too, because they will ask you for a new copy, and they may hold your order until they have it.
Who gets in trouble if the certificate is wrong?
Both sides carry something. The seller carries the duty to make sure the certificate was properly completed and to keep it. A seller who accepts a properly completed certificate in good faith is relieved of having to prove the tax was not due. The buyer carries the consequence of certifying resale for goods the buyer knew were being bought to use, which Texas treats as a crime scaled to the tax involved.
Does having a resale certificate mean I do not have to collect sales tax from my own customers?
No. The certificate only covers the purchase you make from your supplier. Whether you must collect tax when you sell to your customer is a separate question, decided by whether that state can require you to collect. We cover that question in the linked Brief on economic nexus.