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Possible online services disruption due to Internet related outage

A worldwide technology outage is causing disruption to some State of Illinois online systems.  We are aware of this issue and are diligently working on restoration.

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 amend a return
    • Make a payment
    • Respond to a notice
    • Respond to an examination
    • Respond to an audit
    • Request an Installment Payment Plan Agreement
  • Businesses Login Functions
    • File or amend a return
    • 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
  • 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

Using MyTax Illinois