Where do I obtain a reseller’s certificate if I’m an Illinois business?
Business TaxIf you are an Illinois business and have registered in Illinois, you can obtain a CERTIFICATE OF RESALE by visiting the following website: http://tax.illinois.gov/TaxForms/Sales/CRT-61.pdf
MAKE SURE THAT YOU REGISTERED AS A RETAILER IN ILLINOIS
Visit: https://mytax.illinois.gov to REGISTER AND COMPLETE THE REG-1 FORM.
This is very important – there is an 8 digit number that is used on the Certificate of Reseller form that you need to obtain from the My Tax Illinois website.