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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

If you (and/or spouse) have not file 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 e-file eligibility page 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) signature alternative options depends on whether or not you have filed an Illinois tax return within the past two years.

If you did file a return within the last two years:

If you have 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 3 options (shown below). The option that you select for your signature alternative must the IDOR’s records are your return will get 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

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