IL-1120-V: Payment Voucher for Corporation Income and Replacement Tax (2024)
Illinois · Illinois DOR · Used for tax years 2024
Form IL-1120-V is a payment voucher for Illinois Corporation Income and Replacement Tax. It identifies the taxpayer, tax year ending, and payment amount for IL-1120 extension, estimated tax, or return payments made by mail.
Who files this form
Use Form IL-1120-V for all IL-1120 payments made by mail, including extension, estimated, and return payments.
Do not file this voucher if no payment is due or you pay electronically. If the department has notified you that you must pay electronically, you must use one of its electronic payment options.
What you'll need
To complete the voucher and pay by mail, have:
- Your federal employer identification number (FEIN).
- Your name, C/O information if applicable, mailing address, and phone number.
- The month and year your tax year ends.
- The payment amount in whole dollars.
- A check or money order for the amount you are paying.
How to file
Pay by mail
- Enter your FEIN, name, C/O information if applicable, address, and phone number.
- Enter the month and year your tax year ends and your payment amount in whole dollars.
- Detach the voucher and enclose your check or money order.
- Make the payment payable to “Illinois Department of Revenue.” Write your FEIN, tax year ending, and “IL-1120-V” on the payment.
- Mail the completed voucher and payment to:
Illinois Department of Revenue
P.O. Box 19038
Springfield, IL 62794-9038
If you are also filing your return by mail, you may attach the voucher and payment to the front page of your return. Mail them together to the address shown on your return.
Pay electronically
Visit tax.illinois.gov or scan the QR code on the form. Do not file this voucher when paying electronically. You must pay electronically if the department has notified you that this is required.
Common mistakes
- Filing the voucher when no payment is due or when paying electronically. The form says not to file it in either case.
- Entering cents in the payment amount. Use whole dollars only.
- Leaving your FEIN, tax year ending, or “IL-1120-V” off your check or money order.
- Making the check or money order payable to someone other than “Illinois Department of Revenue.”
- Paying by mail after the department has notified you that electronic payment is required.
Questions people ask
Can I use this voucher for estimated or extension payments?
Yes. If you are not paying electronically, use this voucher for all IL-1120 payments, including extension, estimated, and return payments.
Do I need to file the voucher if I pay electronically?
No. Do not file the voucher if you pay electronically or if no payment is due.
Can I mail the voucher with my return?
Yes. If you file your return by mail, you may attach the voucher and payment to the front page and mail everything together to the address shown on your return.
What should I write on my check or money order?
Write your FEIN, tax year ending, and “IL-1120-V.” Make it payable to “Illinois Department of Revenue.”
Where can I make an electronic payment?
Visit tax.illinois.gov or scan the QR code on the form. The form says electronic payment provides immediate confirmation and avoids mailing delays.