Exemption certificates are routine paperwork until somebody asks to see one, at which point the whole position rests on whether it was collected and kept.
Sellers carry the risk. Accepting a certificate in good faith protects them; accepting one without checking, or never collecting it at all, leaves them liable for tax they never charged.
This covers the main forms and what each is for, how they are completed, what a seller should check before accepting one, how long they have to be retained, and the situations where they do not apply.
Why Texas Has Multiple Exemption Forms
Texas has no single universal exemption form. The form you need depends on who you are (reseller, nonprofit, farmer) and what you are buying. Using the wrong form can expose the seller to liability and leave you owing back taxes.
Collect the certificate before the sale rather than after, and keep it somewhere you can produce it years later. In a review the question is not whether the buyer was exempt, it is whether you held valid documentation at the time you decided not to charge.
Anu Gupta, CA, EA, B.Tech · LinkedInComplete Guide to Texas Exemption Forms
Form 01-339: Texas Sales and Use Tax Resale Certificate / Exemption Certificate
This is the most commonly used form. It serves two purposes depending on which box you check:
- Side A, Resale Certificate: for buyers purchasing goods to resell
- Side B, Exemption Certificate: for buyers claiming a specific statutory exemption (e.g., manufacturing, agriculture)
- Requires: buyer name/address, Texas sales tax permit number (for resale), reason for exemption
- Seller retains original; do not file with the Comptroller
- One certificate can serve as a blanket certificate for ongoing purchases from a single vendor
Pro Tip: Form 01-339 is a two-sided form. Make sure you are filling out the correct side for your situation.
Form AP-204: Texas Application for Exemption (Nonprofit)
Used by organizations seeking state tax-exempt status from the Texas Comptroller. This is a one-time application, not a transaction-level certificate.
- Required for organizations claiming exemption on purchases and sales
- Must attach federal determination letter (e.g., IRS 501(c)(3) letter)
- Comptroller issues an exemption letter once approved
- Present the Comptroller exemption letter (not Form AP-204) to sellers
- Different from IRS exemption, must apply separately to Texas
Form AP-205: Application for Exemption (Charitable Organization)
Similar to AP-204 but specifically for charitable organizations under Texas Tax Code Section 151.310.
- Applies to organizations that provide services or assistance exclusively to needy individuals
- Must demonstrate the charitable function to the Comptroller
- Once approved, organization receives an exemption letter for use with sellers
Agricultural and Timber Exemption Registration
Farmers, ranchers, and timber producers do not use Form 01-339 for ag/timber purchases. Instead:
- Register online at the Texas Comptroller's eSystems portal
- Receive an Agricultural and Timber Registration Number
- Use Form 01-924 (Texas Agricultural Sales and Use Tax Exemption Certificate) for ag purchases
- Use Form 01-925 (Texas Timber Operations Sales and Use Tax Exemption Certificate) for timber purchases
- Present the registration number and signed form to the seller at each purchase
Government Entity Exemptions
Federal, state, and local government entities are generally exempt from Texas sales tax. They typically present their governmental identification rather than a standard exemption form.
How Retailers Should Accept and Document Certificates
- Review the certificate before completing the sale, not after
- Verify the buyer's Texas sales tax permit number online if using a resale certificate
- Ensure the certificate is complete: name, address, permit/registration number, specific exemption claimed, signature
- File the certificate and retain for at least 4 years
- Create a vendor file for each customer with their certificate on file
- For blanket certificates, review and update at least every 3-4 years or when buyer information changes
Pro Tip: A well-documented exemption certificate file is your protection in a sales tax audit. Auditors will ask to see certificates for all exempt transactions.
Comparison of Major Texas Exemption Forms
| Form | Purpose / Who Uses It |
|---|---|
| Form 01-339 (Side A) | Resale, buyers purchasing inventory for resale |
| Form 01-339 (Side B) | Exemption, buyers claiming statutory exemption (manufacturing, etc.) |
| Form AP-204 | Nonprofit organizations applying for Texas state tax exemption status |
| Form AP-205 | Charitable organizations applying for Texas state tax exemption status |
| Form 01-924 | Farmers/ranchers buying agricultural items |
| Form 01-925 | Timber producers buying timber-related items |
| Government ID / Letter | Government entities making exempt purchases |
Book a free consultation and we will take the return off your desk.
Frequently Asked Questions
Can I use an out-of-state exemption certificate in Texas?
Sometimes. Out-of-state sellers must accept Texas certificates; for in-state transactions, the certificate must meet Texas requirements.
What happens if I accept an invalid certificate?
The seller may be held liable for the uncollected tax. Good-faith acceptance provides some protection.
Do I need a new certificate for every purchase?
No. A blanket certificate covers all similar purchases from the same vendor until revoked.
Can a nonprofit automatically buy tax-free?
No. The nonprofit must apply to the Comptroller and receive an exemption letter first.
Where do I download these forms?
All forms are available at comptroller.texas.gov.
Written by
Anu Gupta, CA, EA, B.Tech
Anu works with US businesses on tax and entity questions at Profitjets, from choosing a structure to the filings that follow it. She writes about the decisions owners make once and then live with for years. Connect on LinkedIn
Free consultation
Want the Filing Handled?
Book a free consultation and we will take the return off your desk.