Help center

Email a one-click upload link to any customer — they don't need a Shopify account to send you a resale certificate.

Place the Resale Proof Portal block on your Shopify customer account profile so wholesale customers see the Tax Exemption section. Required setup, takes about 30 seconds.

Blanket resale certificates cover ongoing purchases from one buyer. Single-purchase certs cover exactly one transaction. Here's when each applies and which is safer.

Install Resale Proof, invite your first tax-exempt customer, approve their certificate, confirm tax is skipped at checkout. Five steps, five minutes.

Not every tax-exempt buyer is a reseller. Here's how to tell which type of certificate a customer needs and what each one covers.

Step-by-step guide to exporting your certificates from EXEMPTAX and importing them into Resale Proof on Shopify. Typically takes under 15 minutes.

Under US sales-tax law, a seller who accepts a signed resale certificate in good faith isn't liable if the buyer turns out to be committing fraud. Here's what the standard means, what the audit actually tests, and the per-state statutes.

State audit lookback windows range from 3 to 7 years. Here's the retention period each US state requires for resale certificates, plus a conservative rule of thumb.

Every state's Department of Revenue publishes a seller's-permit or tax-ID verification tool. Here are the direct links, plus a checklist of what to verify before you accept.

California's resale certificate rules reject the MTC Uniform Sales & Use Tax Certificate for most in-state purchases. Here's what to use instead.

When a drop-ship retailer asks you to ship to an end customer in another state, which state's resale certificate do they need? Here's the rule and common exceptions.

When a sales-tax auditor asks for proof of exemption and you can't produce it, the state assumes tax was due. Here's what that looks like and how to avoid it.