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If you have created a MyTax Illinois account, login to your account to view and print your return. If you filed your IL-1040 without creating a MyTax Illinois account, go to the MyTax Illinois home screen. Click the "Retrieve a return, application, or payment" button.

You don't need to send your Forms W-2 to the IRS and should keep them in a safe place with a copy of your tax return. Use Form 8453, U.S. Individual Income Tax Transmittal for an IRS e-File Return to submit any paper documents that need to be sent after your return has been accepted electronically.

If you file a paper return, attach any forms and schedules behind Form 1040 in order of the "Attachment Sequence Number" shown in the upper right corner of the form or schedule.

Mailing Addresses AreaAddressIL-1040, Illinois Individual Income Tax ReturnWithout Payment PO BOX 19041 SPRINGFIELD IL 62794-9041 With Payment PO BOX 19027 SPRINGFIELD IL 62794-9027IL-1040-ES, Estimated Income Tax Payments for IndividualsILLINOIS DEPARTMENT OF REVENUE SPRINGFIELD IL 62736-00014 more rows

When assembling your tax return, place the forms in order of their sequence, with Form 1040 (or 1040A) on top. If you have any supporting statements or schedules, attach them all at the end, in the same order as the forms or schedules they refer to.

The IRS accepts returns that are stapled or paperclipped together. However, any check or payment voucher, as well as accompanying Form 1040-V, must not be stapled or paperclipped with the rest of the return, since payments are processed separately.