Terahertz Store Customer Service Help
Sales Tax and Tax Exempt
Illinois Tax
Orders placed with a shipping address within the state of Illinois will be subject to Illinois state tax of 10%Tax Exempt
If you are an Illinois business or government agency and feel that you are tax exempt, please fax your contact information and a copy of your tax exempt letter to (847) 991-7189. Once we receive and file your tax exempt letter, we will e-mail you confirming that you are ready to make your tax exempt purchase.
