Illinois Resale Certificate
Rules, Form & Expiration

What a Illinois resale certificate has to say, who can sign one, how long it lasts, and how to produce a signed copy for every vendor in minutes.

Illinois resale certificate rules

Certificate form
Official Illinois form
We fill the Illinois Department of Revenue form field by field.
MTC uniform certificate
Accepted
The Multistate Tax Commission uniform certificate can be used for purchases here.
Streamlined (SST) certificate
Not accepted
Illinois is not a Streamlined Sales Tax member state.
Out-of-state buyers
Home-state permit accepted
A reseller registered in another state can generally use that registration number.
Blanket certificates
Allowed
One certificate can cover an ongoing series of purchases from the same vendor.
Expiration
Valid for 3 years
Vendors should collect a fresh certificate before the old one lapses.

What a Illinois resale certificate must include

  • The buyer's legal name, business address, and sales tax registration number from Illinois or their home state.
  • The seller's name and address.
  • A description of the property being purchased for resale, or for a blanket certificate a general description such as "All tangible personal property purchased for resale".
  • A statement that the items will be resold in the ordinary course of business, signed and dated by the buyer.
  • A date, because Illinois certificates are valid for 3 years and vendors need to know when to ask for a new one.

Using your Illinois certificate

  1. Confirm the purchase is genuinely for resale. Using a certificate for supplies or equipment you consume is the most common audit finding.
  2. Give the vendor the signed certificate before or at the time of the sale; a certificate produced after the fact is often rejected.
  3. Issue one blanket certificate per vendor and keep a copy for your records.
  4. Renew before the certificate lapses (valid for 3 years).

Unlimited signed Illinois resale certificates

Enter your business once, add each vendor, and download a signed Illinois certificate on the official state form. One flat yearly price covers every state where you buy inventory.

Illinois resale certificate FAQ

What form do I use for a Illinois resale certificate?
Illinois publishes its own resale certificate form, and vendors expect to see it. Our generator completes the official form with your business, permit, and purchase details and produces a signed PDF.
Does Illinois accept the MTC uniform resale certificate?
Yes. Illinois accepts the Multistate Tax Commission's Uniform Sales and Use Tax Certificate, which is convenient when you buy from vendors in several states.
Can an out-of-state business use a resale certificate in Illinois?
Yes. Illinois accepts a valid sales tax registration number from another state on a resale certificate, so you do not need a Illinois permit purely to buy inventory tax-free.
Can I give a vendor one blanket resale certificate in Illinois?
Yes. A blanket certificate in Illinois covers every qualifying purchase from that vendor going forward, typically described as "All tangible personal property purchased for resale".
How long is a Illinois resale certificate valid?
A Illinois resale certificate is valid for 3 years. Vendors are responsible for keeping a current certificate on file, so expect to reissue it on that schedule.

This page summarizes Illinois resale certificate rules for general information and is not tax advice. Confirm current requirements with the Illinois Department of Revenue or your tax adviser.