6240: Payment Voucher Corporation Net Income Tax (Revision 2025-01)
Alaska · Alaska DOR · Used for tax years 2024, 2025, 2026
Form 6240 is a payment voucher for Alaska corporation net income tax, including oil and gas corporation net income tax. It identifies the taxpayer, tax year, payment type, and payment amount. It is not an extension form.
Who files this form
Form 6240 accompanies a check payment for Alaska corporation net income tax when making an estimated tax payment, a payment with an extension of time to file, or a payment of a Department of Revenue assessment.
The voucher also has a box for an amended return payment. It covers Alaska Corporation Net Income Tax (Form 6000) and Alaska Oil and Gas Corporation Net Income Tax (Form 6100 or 6150).
The form may also be used with an Electronic Funds Transfer (EFT) or wire transfer payment.
What you'll need
Have the following information ready to complete the voucher:
- The name and EIN used on the tax return.
- Your mailing address.
- The calendar year or taxable-year beginning and ending dates.
- The payment type and, for estimated tax, the installment number.
- The applicable tax form: Form 6000, 6100, or 6150.
- The payment amount.
The voucher also includes a date field and a box to check if this is your first year doing business in Alaska.
How to file
Complete the voucher using the same name and EIN as on the return. Select the payment type and applicable tax, and enter the payment amount.
For a check payment, use the voucher to accompany your payment. Mail the voucher to:
TAX DIVISION
ALASKA DEPARTMENT OF REVENUE
PO BOX 110420
JUNEAU AK 99811-0420
The department encourages electronic payment through Revenue Online at www.tax.alaska.gov. You can also print a voucher there.
Payment must be made by EFT or wire transfer if:
- A payment with an extension is $150,000 or greater.
- Any other payment is $100,000 or greater.
Common mistakes
- Using a different name or EIN from the return. Use the same name and EIN to ensure proper credit.
- Treating the voucher as an extension form. Form 6240 is not an extension form. Submitting it without payment does not constitute an Alaska extension.
- Not paying electronically when required. Extension payments of $150,000 or greater and other payments of $100,000 or greater must be made by EFT or wire transfer. Failure to do so is subject to a penalty under IRC Sec. 6656.
Questions people ask
Does Form 6240 give me an extension to file?
No. It is a payment voucher, not an extension form. The Department of Revenue automatically follows federal Form 7004 if it is attached to the return when filed.
Can I use this voucher with an electronic payment?
Yes. Form 6240 may also be used for payments made by EFT or wire transfer.
Can I print a voucher online?
Yes. You can print a voucher through Revenue Online at www.tax.alaska.gov.
Where can I get help?
Call 907.465.2320 for questions, additional information, or other assistance.