Set up filing for Illinois

Provide your Illinois tax account information to set up automated filing.

The date your sales tax registration started with the state.
Check your registration certificate or contact the Illinois Department of Revenue at 800-732-8866 to request this information.

Your 8-digit ST-1 or ROT Reseller Account ID.
Check the registration certificate you received from the state or log into your MyTax Illinois account and go to the Account section

Enter your 5-digit or 9-digit ZIP code (e.g. 60601 or 60601-1234).
In your MyTax Illinois account, your business address, including your zip code, appears on the left side of the screen.

This is the last payment you made for your sales tax account to the state of Illinois. If you’ve never made a sales tax payment to Illinois, enter $0 as the payment amount.
Log in to your MyTax Illinois account and go to More > Payments and Returns. Select Manage Payments and Returns, then select Payments and Posted. Your last payment is listed under the most recent pay period.

This is your filing frequency as assigned by the state or local tax authority.
Check your registration certificate or log into your MyTax Illinois account and select File a Return.

After you grant third-party access to TaxJar, here's what will happen:

Under review: Within a few days, TaxJar will review your submission for accuracy and process your application.
- IMPORTANT: Your TaxJar account is created using the email address associated with your Stripe account, so if the TaxJar team needs to contact you, this is the email address we use by default. (Follow these instructions if you want to change this email address within your TaxJar account).
Automatic filing enabled: After access is confirmed, TaxJar will process your application. Then you'll be ready to file.
File your first tax return: Once TaxJar processes your application, you'll get an email when it's time to review your first filing.