Article: 50305

Overview

The Illinois e-File PIN (IL-PIN) is an eight-digit personal identification number issued by the Illinois Department of Revenue (IDOR). It serves as an electronic signature when filing Form IL‑1040 through an approved e-file provider.

Who Needs an IL-PIN

• Returning Filers: If you filed an Illinois tax return in the last two years, an IL‑PIN has been assigned to you by the state.
• First-Time Filers: You will not have an IL‑PIN. Instead, you can validate your identity using your Illinois driver’s license or state-issued ID.

How to retrieve your IL-PIN

There are two main ways to retrieve your ILPIN:

1. Online – MyTax Illinois

• Visit the IL-PIN Inquiry page.
• Provide your:
  • Social Security Number (SSN)
  • Date of Birth
  • Prior-year IL Adjusted Gross Income (AGI), or
  • Illinois driver’s license/state ID

2. By Phone

• Call the Illinois Department of Revenue at 800-732-8866
• You will need to verify your identity using the same information as above.

e-Filing Without an IL-PIN

If you are a first-time filer or choose not to use an IL-PIN, you may e-file using your:

• Illinois driver’s license, or
• State-issued ID card.

This serves as your electronic signature alternative.

Important Notes

• Joint Returns: Each spouse must provide their own IL-PIN or use their own state-issued ID for signature authorization.
• Accuracy Matters: Errors in IL-PIN entry, SSN, or ID information can cause rejection of your return.
• The IL-PIN is only valid for Illinois state returns, not for federal returns or other states.

How to Enter During e-File

The IL PIN is entered during the e-file process. The IL PIN will be prompted when you are entering in the self-selected five digit IRS pin number.

Additional Resources

• Visit tax.illinois.gov for additional guidance.
• Contact IDOR at 800-732-8866 for assistance.