You would not send a IL-1040-V payment voucher with your return. If you are paying by check, you would include your check with your tax return. You can also go to your State's website to pay taxes owed online.
What do I mail in my Illinois tax return?
You would send the 1040 and all supporting forms and schedules. For example for a 1040, W2, schedule A etc., you will find a number in the upper right hand corner of the forms. You generally need to send a copy of any form that documents Illinois taxes were withheld. Make sure you sign your tax return.
If no payment is enclosed, mail your return to: If a payment is enclosed, mail your return to:
ILLINOIS DEPARTMENT OF REVENUE ILLINOIS DEPARTMENT OF REVENUE
PO BOX 19041 PO BOX 19027
SPRINGFIELD IL 62794-9041 SPRINGFIELD IL 62794-9027
