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Make edits, fill in missing information, and update formatting in US Legal Forms—just like you would in MS Word.

Download a copy, print it, send it by email, or mail it via USPS—whatever works best for your next step.

Sign and collect signatures with our SignNow integration. Send to multiple recipients, set reminders, and more. Go Premium to unlock E-Sign.

If this form requires notarization, complete it online through a secure video call—no need to meet a notary in person or wait for an appointment.

We protect your documents and personal data by following strict security and privacy standards.
The letter asks you to take specific steps to verify your identity and confirm whether or not the return is actually yours.
If you do not have a recent notice issued to you by IDOR from which you can obtain a Letter ID, then you can select the link “Request a Letter ID” under the 'Individuals' panel on the MyTax Illinois homepage. You must have previously filed a tax return with IDOR in order to activate a logon.
The Illinois Department of Revenue (IDOR) sends letters and notices to request additional information and support for information you report on your tax return, or to inform you of a change made to your return, balance due or overpayment amount.
Identity Verification Form - All applicants require an Identity Verification Form to be signed by a member of An Garda Síochána. This form can be downloaded from our website (LINK) and printed.
IL-425 Identity Verification Documents. Note: Please use this form to submit your Identity Verification to the Illinois Department of Revenue if you do not have the letter we sent you. If you have the letter we sent you, please use the letter to respond online at MyTax.Illinois.
MyTax Illinois was developed, with your security in mind, to file your tax returns, make payments, and view your account information in a safe and secure manner.
Electronically - Go to our website at MyTax.illinois, scroll down to the section titled "Identity Verification", select the Identity Verification Documents link, enter your Letter ID, and follow the instructions. Note: Submitting your information electronically will result in a quicker and more secure process.
The option to file an Illinois individual income tax return without a MyTax Illinois logon is improved and now available for taxpayers who file a simple return. To file a non-login return, the user must have submitted a previous year Form IL-1040, Illinois Individual Income Tax Return with IDOR.