Alaska Form 6240 – Payment Voucher for Corporation Net Income Tax

Last reviewed: 2025-11-12

Use the Alaska Tax Form Calculator Form AK-6240: Alaska Form 6240 – Payment Voucher for Corporation Net Income Tax as a stand alone tax form calculator to quickly calculate specific amounts for your 2026 Alaska state tax return. Alternatively, you can use one of our Combined Federal and State Tax Estimators to quickly calculate your salary, tax, and take-home pay.

Form AK-6240 is the official payment voucher used by corporations to remit payments toward Alaska's Corporation Net Income Tax. Because Alaska does not impose individual income tax, the corporate tax system relies on structured payment vouchers like Form 6240 to ensure proper crediting of estimated taxes, extension payments, and balances due. This reference copy mirrors the layout of the official form and helps filers understand which details must accompany a mailed payment.

This form does not perform any tax calculations. Instead, it provides a standardized way to submit payments so the Alaska Department of Revenue can match funds to the correct corporate account. Corporations filing Form 6000, 6100 or 6150 often use Form 6240 whenever tax is owed or when estimated quarterly payments are required.

How to Use Alaska Form 6240

Form 6240 accompanies a check or money order submitted to the Alaska Department of Revenue. It is used when:

You are making a quarterly estimated tax payment.
You need to remit a payment with an extension request.
You must pay the balance due after filing Form 6000, 6100 or 6150.
You are submitting a payment resulting from an audit adjustment or departmental billing.

This form does not calculate tax. Instead, the taxpayer supplies identifying information—corporate name, EIN, taxable year, payment type and amount. This ensures the payment is posted to the correct tax year, preventing misapplied payments or delays in crediting your corporate tax account.

Alaska Form 6240 — Payment Voucher – Corporation Net Income Tax
1	Corporation name (exact as on return)
2	Employer Identification Number (EIN)
3	Taxable year beginning
4	Taxable year ending
5	Payment type (check one: estimated tax, extension payment, bill, amended return payment)
6	Payment amount enclosed ($)
Make check or money-order payable to “Alaska Department of Revenue”. Mail to: TAX DIVISION, Alaska Department of Revenue, P.O. Box 110420, Juneau AK 99811-0420. Form 6240 is not an extension by itself.

Important Notes

Do not staple the payment, check or voucher together.
Mailing address: Alaska Department of Revenue, Tax Division, P.O. Box 110420, Juneau, AK 99811-0420.
Electronic payments may be available through the Alaska Department of Revenue; if paying electronically, Form 6240 is generally not required.
This form does not extend the time to file by itself. If submitting an extension payment, you must still file the extension form or corporate return as required.

Using a voucher helps avoid posting errors—particularly for corporations with multiple subsidiaries, consolidated filers or those making mid-year estimated payments. Always keep a copy of the submitted voucher and check for your records.

Last reviewed: 2025-11-12: If you believe this form requires an update, please contact us.

Additional Resources

This reference version of Form 6240 helps corporations ensure their payments are accompanied by accurate identifying information, reducing the risk of delays or misapplied tax payments.

Quick Access Tools

Frequently Asked Questions

Where can I access a structured version of Form 6300 online?

You can work with the structured version at Alaska Form 6300 Calculator, which provides a clean digital layout mirroring the official summary sheet.

Are federal itemized deductions used for Alaska purposes?

Yes—but only on your federal return. Alaska does not use or require Schedule A, B, C or D for state-level filing because there is no state income tax. You will still complete federal schedules if they apply to your situation, but none need to be reconciled with an Alaska state return. Your federal filing stands alone. This means no state-specific adjustments to itemized deductions, AGI, or income sources, making Alaska the simplest jurisdiction for federal filers.

Where can I access the reference page or tool for Form 6100?

A complete overview of the form, instructions and structured calculator logic is available at Alaska Form 6100 Calculator. This provides item-by-item explanations, relevant schedules and state-level guidance for S corporations.

Are commuter or transit taxes withheld in Alaska?

No. Alaska does not impose commuter, transit, or regional mobility taxes that appear in some other states (such as Oregon's statewide transit tax or certain city-based earnings taxes). Regardless of where you live—Anchorage, Fairbanks, Juneau, the Kenai Peninsula, rural villages, or North Slope communities—there is no payroll-based commuter tax. Any transportation fees that do exist, such as ferry system fares or airport surcharges, are paid by users directly and never deducted from wages. This makes Alaska particularly attractive for remote workers or employees who commute substantial distances, because commuting never triggers payroll-related assessments tied to location.

Does inflation affect Alaska tax calculations for individuals?

Inflation impacts federal tax brackets, credits, retirement contribution limits and Social Security thresholds every year. Because Alaska imposes no income tax, residents experience these updates only on the federal side. For example, increases to the standard deduction, Earned Income Credit, Child Tax Credit phaseouts or 401(k) limits all apply equally to Alaskans. Importantly, Alaska has no indexed brackets, exemptions or state credits to update, so there is no state-level inflation drag, bracket creep or cost-of-living adjustment to track.

Important Notes

All calculations are estimates for guidance only. Always review your return and consider professional advice when submitting official filings.