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To e-file an Illinois tax return, you (and/or spouse) must have:

  • Filed an Illinois tax return within the past two years, or
  • A valid Illinois Driver's License or State ID

Note. If you (and/or spouse) have not filed an Illinois tax return within the past two years and you (and/or spouse) do not have a valid Illinois driver's license or Illinois State ID, you must paper file your Illinois return. However, you (and/or spouse) should be assigned an IL-PIN to e-file next year. See the Illinois File 2020 IL-1040 electronically through a Tax Professional webpage for more information on these requirements.

Note. If your return is rejected with Reject Code IL1040-8000-2, IL1040-8000-2, IL1040-10500-3 or IL1040-9900-2, the signature alternative for the taxpayer (and/or spouse) does not match the IDOR Records.

Your (and/or spouse’s) alternative signature options depend on whether or not you have filed an Illinois tax return within the past two years.

If you filed a return within the last two years

If you filed an Illinois tax return within the past two years, the IDOR should have provided you with an Illinois Personal Identification Number (IL-PIN) on your IL-1040 booklet or on a postcard. To obtain your IL-PIN, visit the IL-PIN Inquiry website or call 1-800-732-8866.

For your signature alternative, you have three options (shown below). The option you select for your signature alternative must match the IDOR’s records or your return will be rejected.

  • Prior Year AGI (IL-1040 Line 1)
  • Illinois Driver’s License or State ID Number
  • Illinois Personal Identification Number (IL-PIN)

If you did not file a return within the last two years

If you have not filed an Illinois tax return within the past two years, the IDOR has not issued you an Illinois Personal Identification Number (IL-PIN) and you will need a valid Illinois driver’s license or state ID to e-file. For your signature alternative, each of the following must be entered exactly as shown on your Illinois driver’s license or state ID:

  • License or ID Number
  • First Name
  • Middle Name (if present on Illinois driver’s license)
  • Last Name
  • Suffix (if present on Illinois driver’s license)
  • Weight

Note that any link in the information above is updated each year automatically and will take you to the most recent version of the document at the time it is accessed.


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