Two things are needed for your tax exemption status:
1) Valid Tax Exempt ID
We use Verify a Business by the State of Illinois to check your Illinois Business Status. If you are out of Illinois please provide a valid business identification along with the CRT-61 Form listed below.
Note: If you have what most people call a tax ID number you should be able to find it here. For our business we had to use "Verify a Registered Business" link, not the "Verify a sales tax exemption number" link.
ID Type: License Number
Enter your Business Number, no letters, no hyphens.
That will confirm your Business Number is valid.