How to Fill Out a Resale Certificate: Fields, Delivery, and Validity

To fill out a resale certificate, you enter your business’s legal name and address, your state-issued sales tax permit number, a description of the goods you plan to resell, the reason for the exemption, and an authorized signature, then give the completed form to your vendor before your first tax-exempt purchase. The specifics vary by state and by which form you use, but those fields sit at the core of every version.

Five states — Alaska, Delaware, Montana, New Hampshire, and Oregon — do not impose a statewide sales tax, so a resale certificate is not needed for purchases sourced to those states.

What to Have Ready Before You Start

You need a valid seller’s permit or sales tax identification number from your state’s taxing authority. That number proves you are registered to collect sales tax and is a required field on the certificate. Most states issue the permit at no cost through an online registration portal, though a few charge a small application fee or require a refundable security deposit. Without the number, you generally cannot use a resale certificate at all.

You also need your business’s legal name exactly as it appears in government records, along with the business address on file. A mismatch between what you write on the form and what the taxing authority has can be enough for the certificate to be rejected.

Picking the Right Form

Every state that collects sales tax publishes its own resale certificate, usually as a downloadable PDF on the department of revenue or comptroller website. Use the current version. Submitting an outdated form can result in the exemption being denied.

If you buy from vendors in more than one state, two multistate forms can cut down the paperwork:

The MTC Uniform Sales and Use Tax Resale Certificate, developed by the Multistate Tax Commission, is accepted by 36 states. The instruction pages list which states participate and flag state-specific requirements.¹²
The Streamlined Sales Tax (SST) Exemption Certificate is accepted by all 24 member states of the Streamlined Sales Tax Governing Board and covers resale along with other exemption categories.³

Some states accept both multistate forms, some accept only one, and some require their own form exclusively. Check the instructions on the MTC or SST form, or your state’s revenue website, to confirm what the vendor’s state will honor before you send anything.

Working Through the Fields

Forms differ, but nearly all of them ask for the same core information in roughly the same order.

Business Name, Address, and Permit Number

Enter your legal business name, address, and sales tax permit number. The form will then ask you to classify what kind of business you run. The MTC form offers wholesaler, retailer, manufacturer, seller, and lessor, plus an “other” option for businesses that don’t fit those categories.² Pick the category that describes your primary activity. A mismatch here can raise questions about whether the purchase really qualifies for the exemption.

Reason for Exemption

The SST certificate uses a standardized set of reason codes, with resale listed as a separate code alongside categories like agricultural production, industrial manufacturing, and government purchases.⁴ Simpler state forms may just have a “resale” checkbox or a short write-in field.

Description of the Goods

Give a general description of what you plan to buy for resale. You do not have to list every SKU, but the description has to be specific enough to show the goods fit your normal inventory. A clothing retailer writing “apparel and accessories” works. “Miscellaneous items” does not. If a single order mixes items for resale with items your business will use itself, identify which are which. Only the resale portion qualifies for the exemption.²

Signature

An authorized person — typically the owner, a partner, or a corporate officer — signs and dates the certificate. Signing certifies that the goods will be resold and accepts responsibility for the sales tax if they are not.² Digital signatures are widely accepted, though they generally must meet security standards that verify the signer’s identity and preserve the document’s integrity.⁵

Blanket or Single-Purchase

Most forms ask you to indicate whether the certificate covers one transaction or an ongoing relationship.

A single-purchase certificate covers one specific transaction. Use it for a one-time or unusual order from a vendor you do not normally buy from.
A blanket certificate covers all qualifying purchases from a specific vendor over an extended period. This is the more common choice for ongoing supplier relationships because it saves you from filling out a new form for every order.²

On the MTC form, a blanket certificate stays valid until the buyer cancels it in writing or the state revokes it.² Individual state rules can be stricter, and those rules override the multistate form for purchases sourced to that state.

Give It to the Vendor Before You Buy

Send the completed certificate to your vendor before or at the time of your first tax-exempt purchase. Many vendors have online portals where you upload a PDF to your customer profile. Others accept an emailed copy or a physical one handed over in person. The method is usually up to the seller’s accounting preferences.

Timing matters. Several states give sellers a limited window, commonly 90 days after the sale, to collect a valid certificate from the buyer. If no certificate is on file within that window, the sale is presumed taxable and the seller may be required to charge you sales tax retroactively.² Getting the certificate over promptly keeps the exemption on your invoices from day one.

Keeping the Certificate Valid

How long a resale certificate stays valid depends on the state whose rules govern the transaction. The range is wide:

Some states require annual renewal.
Several states set blanket certificate validity at three or four years. The MTC form notes that in certain participating states, blanket certificates last four years unless a shorter period is agreed on.²
In a number of states, the certificate does not expire as long as the business relationship continues and the information stays accurate. The MTC form specifies that renewal is not required when a recurring relationship exists, defined as no more than 12 months between sales transactions.²

Regardless of the state’s expiration schedule, you have to issue a new certificate whenever your business changes in a significant way: a new legal name, a change in ownership structure, or the expiration of your seller’s permit. If you let the certificate lapse without providing an updated one, your vendor will typically start charging sales tax on new orders until a valid replacement is on file. Keep your own copy of every certificate you issue; you may need it to prove a past purchase was legitimately tax-exempt.

The Exemption Only Covers Goods You Actually Resell

If you buy something tax-free on a resale certificate but then use or consume it in your business instead of reselling it, you owe use tax on that item. Use tax is typically the same rate as sales tax and closes the gap when sales tax was not collected at purchase. You report and pay it directly to your state’s taxing authority, usually on your regular sales tax return.

This comes up more often than people expect. A restaurant owner who buys cleaning supplies on a resale certificate and then uses them in the kitchen owes use tax on those supplies. The same goes for inventory you later decide to keep as office equipment or hand out as promotional items. Signing the certificate means you accepted that responsibility.

A Note on Drop Shipping

Drop shipping complicates which certificate you file. When your customer orders from you and you have a manufacturer ship directly to that customer, the certificate your supplier needs must typically be valid in the state where the goods are delivered, not necessarily where you or the supplier are located. Some states accept an out-of-state certificate or your home-state registration number on their form; others require you to register in the destination state and use that state’s certificate. Some allow the end buyer’s resale certificate to flow through to the supplier, usually only when you do not have nexus in the destination state. Confirm the destination state’s rules before the first shipment.

What Misuse Costs

Using a resale certificate to avoid sales tax on items you intend to keep for personal or business use is tax evasion. At the lower end, you owe the unpaid tax plus interest and a percentage-based penalty. More deliberate fraud can bring substantially higher fines and, in some states, criminal prosecution carrying potential jail time. Misuse is also one of the most common triggers for a sales tax audit, and when an audit finds intentional fraud, the normal statute of limitations on assessments typically does not apply, so the state can go back further.

Honest mistakes still carry consequences. If you inadvertently use a certificate for a purchase that doesn’t qualify, you’re still on the hook for the unpaid tax. Keeping clean records of which purchases are for resale and which are for internal use is the simplest way to stay out of trouble.

1
Multistate Tax Commission. Uniform Sales and Use Tax Resale Certificate – MTC
2
Multistate Tax Commission. Uniform Sales and Use Tax Resale Certificate – Multijurisdiction
3
Streamlined Sales Tax Governing Board, Inc. Exemptions – Streamlined Sales Tax
4
Streamlined Sales Tax Governing Board, Inc. Rule 317 – Administration of Exemptions
5
Internal Revenue Service. 10.10.1 IRS Electronic Signature (e-Signature) Program