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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.

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MyTax Illinois Help

General Information

  • What is MyTax Illinois and how do I access it?
    • How do I know if I am eligible to activate a MyTax Illinois logon?
    • Will I have a separate MyTax Illinois logon for each type of return I file?
    • How often does IDOR process information from MyTax Illinois?
    • Can I view notices that IDOR issues to me using MyTax Illinois?
    • Will I have to install any new software programs on my computer to use MyTax Illinois?
    • What can I do if MyTax Illinois does not appear to be responding when I try to view letters, print returns, or select the help link?

Creating a Logon

  • Individual Income Tax
    • What is a Letter ID?
    • What if my Letter ID does not work?
    • How do I request a Letter ID to activate my logon?
    • Do I have to activate a MyTax Illinois logon to file my Form IL-1040, Individual Income Tax Return?
    • Why won’t MyTax Illinois or other tax preparation programs accept my driver’s license or state ID information?
    • Why won’t MyTax Illinois accept my Prior Year Adjusted Gross Income (AGI)?
  • Businesses
    • What are my options to activate my logon?
    • What should I do if I cannot activate my logon?
  • Two-Step Verification Guide
    • Why do I need to use a Security Code to sign into my MyTax Illinois logon?

MyTax Illinois Functions

  • Individual Income Tax Login Functions
    • File, view, or print a return
    • Contribute to Illinois Gives
    • Make a payment
    • Respond to a notice
    • Respond to an examination
    • Respond to an audit
    • Request an Installment Payment Plan Agreement
  • Businesses Login Functions
    • View or print returns
    • File or amend a Withholding Income Tax (WIT) return
    • Contribute to Illinois Gives
    • Make a payment
    • Renew a license or certificate
    • Respond to an audit
    • Respond to a Business Income Tax (BIT) or Withholding Income Tax (WIT) notice
    • Request an Installment Payment Plan Agreement
  • Individual Income Tax Non-login Functions
    • Respond to a notice requesting Identity Verification
    • IL-PIN inquiry
    • Refund inquiry
    • Non-login payments
    • Non-login returns
    • Look up estimated and extension payments
    • 1099-G lookup
    • 1098-F lookup
    • Submit an IDOR power of attorney
    • Volunteer Emergency Worker Credit Application and Lookup
    • File a Form RUT-75 Aircraft/Watercraft Use Tax Transaction Return
  • Businesses Non-login Functions
    • Electronic W-2 and 1099 Transmittal Programs
    • Verify a registered business
    • Tax Rate Finder
    • Verify a sales tax exemption number
    • Submit an IDOR power of attorney
    • File a zero wage report (IDES Form UI 3/40)
    • 1098-F lookup
    • View Audit Discrepancies and Respond to an Audit Information Request
    • File a Form RUT-75 Aircraft/Watercraft Use Tax Transaction Return

Using MyTax Illinois

MTI-10 (R-04/25)