It's an audit. Either you didn't report all your income to Illinois, like you forget a w-2, irs caught it, and you didn't amend the state return... or you accidentally filed federal but the state return didn't go through. If you're not clear on what to do, call or email the contact on the letter.
For more information, call us at (217) 785-1356.
When will I receive my refund? Refund time frames can vary. To ensure the security and confidentiality of taxpayer information, we have a review process to protect Illinois taxpayers from identity theft and fraud. Some refunds may take longer to process due to errors in filing or security measures.
Information for exclusively charitable, religious, or educational organizations; governmental bodies; and certain other tax-exempt organizations. Qualified organizations, as determined by the Illinois Department of Revenue (IDOR), are exempt from paying sales taxes in Illinois.
Taxpayer Assistance To receive assistance by phone, please call 1 800 732-8866 or 217 782-3336 (1 800 544-5304 TTY). Representatives are available Monday through Friday, 8 am - 5 pm. Over-the-phone translation services are available. To receive assistance by email, use the information below.
Your MyTax Illinois account will provide an alert and a phone number to call if you have been referred to our Collections Program Area. If you do not have a MyTax Illinois account, contact our Collections Program Area Call Unit at 217-785-2698 to verify.
To receive assistance by phone, please call 1 800 732-8866 or 217 782-3336 (1 800 544-5304 TTY). Representatives are available Monday through Friday, 8 am - 5 pm. Over-the-phone translation services are available.
How to fill out the Business Taxes Registration Application Form REG-1? Identify the reason for filing the form and check the relevant box. Fill in your business information, including type and name. List all owners or members with their respective details.
Getting Your ID Number: Submit business formation documents to the Secretary of State office. Corporations file Articles of Incorporation, while LLCs file Articles of Organization. Your ID number comes automatically with approved registration.
You can find your state tax ID number by: Logging into your online account. Looking at documents such as Forms W-2 and state unemployment tax forms. Reviewing letters from the state. Contacting your state.