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Scam Alert: Fake Texts and Websites Impersonating IDOR

Be alert for fraudulent messages or websites attempting to steal your banking information, login credentials, or credit card details. The Illinois Department of Revenue (IDOR) will never request personal or financial information via text message. To confirm official communications or contact details, always visit https://tax.illinois.gov.

Sales & Use Tax Forms

Eligible forms may be filed electronically using MyTax Illinois, a FREE online account management program. Other related information is available on the following webpages:

Form Instructions Description
ST-1 (COMING SOON) HTML | PDF Sales and Use Tax and E911 Surcharge Return for reporting periods beginning January 2026
ST-1 
HTML | PDF

​​Sales and Use Tax and E911 Surcharge Return for reporting periods January 2024 through December 2025
ST-1 PDF Sales and Use Tax and E911 Surcharge Return for reporting periods December 2023 and Before
ST-1-X (COMING SOON) HTML | PDF Amended Sales and Use Tax and E911 Surcharge Return for reporting periods January 2026 and After
ST-1-X
HTML | PDF
​Amended Sales and Use Tax and E911 Surcharge Return for reporting periods January 2024 through December 2025
ST-1-X PDF ​Amended Sales and Use Tax and E911 Surcharge Return for reporting periods December 2023 and Before
CRT-61
HTML | PDF Certificate of Resale
CRT-63   Sales Through Marketplace Facilitator Certificate
EZ-1
Certificate of Exempt Purchase for Building Materials​
PST-1 PDF Prepaid Sales Tax Return for Reporting Periods January 2024 and After
PST-1 PDF Prepaid Sales Tax Return for Reporting Periods December 2023 and Before
PST-1-X PDF Amended Prepaid Sales Tax Return for Reporting Periods January 2024 and After
PST-1-X PDF Amended Prepaid Sales Tax Return for Reporting Periods December 2023 and Before
PST-2   Prepaid Sales Tax Statement of Tax Paid for Reporting Periods January 2024 and After
PST-2   Prepaid Sales Tax Statement of Tax Paid for Reporting Periods December 2023 and Before
Sch. RE   Resale and Exempt Organization Schedule
ST-2 (COMING SOON) HTML | PDF Multiple Site Form for reporting periods January 2026 and After
ST-2 PDF
Multiple Site Form for reporting periods December 2025 and Before
ST-2-X (COMING SOON) HTML | PDF Amended Multiple Site Form for reporting periods January 2026 and After
ST-2-X PDF Amended Multiple Site Form for reporting periods December 2025 and Before
ST-2-DP
  Direct Pay Multiple Site Form - Use MyTax Illinois to file. For more information on the Direct Pay Permit Program, visit the Managed Compliance Agreement (Direct Payment Permit Program) for Sales and Use Taxes webpage.
ST-2-DP-X
  Amended Direct Pay Multiple Site Form - Use MyTax Illinois to file. For more information on the Direct Pay Permit Program, visit the Managed Compliance Agreement (Direct Payment Permit Program) for Sales and Use Taxes webpage.
ST-6   Claim for Sales and Use Tax Overpayment /
Request for Action on a Credit Memorandum
ST-44 PDF Illinois Use Tax Return
ST-586   Annual Certification of No Solicitation
ST-587   Exemption Certificate (for Manufacturing, Production Agriculture, and Coal and Aggregate Mining)
ST-589   Certificate of Eligibility for Sales and Use Tax Exemption — Community Water Supply
ST-590-M PDF Certificate of Eligibility for Military Purchase Exemption
ST-591 PDF Certificate of Exemption Eligibility for Qualified Purchases of Home-Delivered Meals
STS-80   Request for Vending Machine Decals