K-120V: Corporate Income Tax Payment Voucher (2025)
Kansas · Kansas DOR · Used for tax years 2025
Form K-120V is the 2025 Kansas corporate income tax payment voucher for Forms K-120 and K-120S. It identifies the corporation, taxable year, and payment amount, with boxes for amended and extension payments.
Who files this form
K-120V is the Kansas corporate income tax payment voucher for Forms K-120 and K-120S.
If you already mailed your return, or filed electronically without paying electronically, the form directs you to mail your payment with this voucher.
When it's due
For tax year 2025, pay on or before April 15, 2026. Payments not made by that date are subject to penalty and interest.
The form notes that when a due date falls on a Saturday, Sunday or legal holiday, returns and payments are due the next regular work day.
What you'll need
Have these items and details ready:
- The K-120V voucher. Do not submit a photocopy.
- The taxable year's beginning and ending dates.
- The corporation's name, address and federal Employer Identification Number (EIN).
- A contact person's name and phone number.
- The payment amount.
- A check or money order for the full amount due, payable to Kansas Corporate Income Tax, with your federal EIN and a valid telephone number on it.
The voucher also includes boxes for a name or address change, an amended payment and an extension payment.
How to file
Pay by mail
Complete the voucher using only black ink. Make your check or money order payable to Kansas Corporate Income Tax for the full amount due. Write your federal EIN on the payment and make sure it contains a valid telephone number. Do not send cash.
If mailing the voucher and payment with your return, place them loosely in the envelope. Do not attach them to the return or to each other.
If you already mailed your return, or filed electronically without paying electronically, mail the voucher and payment to:
Kansas Corporate Income Tax
Kansas Department of Revenue
PO Box 750260
Topeka, KS 66699-0260
Pay electronically
Visit the Kansas Department of Revenue Payment portal, or visit ksrevenue.gov and log in to the Kansas Customer Service Center.
Common mistakes
- Using ink other than black to complete the voucher.
- Submitting a photocopy of the form.
- Sending cash instead of a check or money order.
- Leaving your federal EIN or a valid telephone number off the check or money order.
- Making the check or money order payable to someone other than Kansas Corporate Income Tax, or not paying the full amount due.
- Attaching the voucher or payment to the return or to each other. Place them loosely in the envelope.
- Paying after April 15, 2026, for tax year 2025. Late payment is subject to penalty and interest.
Questions people ask
Which returns is this voucher for?
K-120V is the corporate income tax payment voucher for Forms K-120 and K-120S.
Can I pay electronically?
Yes. Use the Kansas Department of Revenue Payment portal at www.kansas.gov/payment-portal/, or visit ksrevenue.gov and log in to the Kansas Customer Service Center.
What if I already filed my return but still need to mail my payment?
Mail your payment and voucher to Kansas Corporate Income Tax, Kansas Department of Revenue, PO Box 750260, Topeka, KS 66699-0260.
Should I attach my payment to the voucher?
No. Do not attach the payment and voucher to each other or to your return. If mailing them with your return, place them loosely in the envelope.
Where can I get help completing the voucher?
Call the Kansas Department of Revenue at 785-368-8222. The Taxation home page at ksrevenue.gov also offers a Chat option for 24-hour assistance, with Live Agents available Monday through Friday from 8:00 a.m. to 4:45 p.m.