Alert Important Announcement:
Revenue Online will not be available starting Saturday, February 20, 2016 at 12:01 am until 4:00 am AKST due to scheduled maintenance. We apologize for any inconvenience.

Welcome to the wonderful world of electronic filing! Revenue Online is going to make filing returns an easy, more accurate and paperless process. This new online service allows users to check their accounts, make payments and file license/permit applications.

The Alaska Department of Revenue, Tax Division is currently working on adding online taxpayer service for the following Tax Programs:
  • Fisheries related Taxes and Licenses
  • Charitable Gaming Taxes and Licenses
  • Marijuana Taxes
  • Cooperative Taxes
  • Partnership Information Return

All other tax programs are actively using the AK DOR Revenue Online system.

Please check the TRMS page on the Tax Division's website frequently for additional announcements.

Corporate Income Tax

Alaska levies a corporate income tax on Alaska taxable income which is based on federal taxable income with certain Alaska adjustments.

Multistate corporations apportion income on a water's edge basis using the standard apportionment formula of property, payroll and sales. Oil and gas corporations use a modified apportionment formula applied to worldwide income.

Tax rates are graduated from 0% to 9.4% in increments of either $24,000 or $25,000 of taxable income. The 0% rate applies to taxable income of $25,000 and below, while the 9.4% rate applies to taxable income of $222,000 and over.

Payment of the Alaska tax must be made on or before the 15th day of the third month after the close of the tax year. The payment due date cannot be extended. When an estimated payment is $100,000 or greater, or a payment with a return is $150,000 or greater, payment must be made online (Revenue Online) or by wire transfer. Tax returns are due 30 days after the Federal return due date. If the Federal return is on extension the Alaska return is automatically on extension.

More information about the corporate income tax may be found in the Tax Division Annual Report.

Tax forms are available for previous years.

Notice of Amended Returns 

How to Contact Us


Forms & Filing Requirements
Kevin Dean
907-465-3153 - Juneau
Investigations   Email Tips to Investigators
  1-877-GR8-TIPS (478-8477)

Technical Questions
Michael R Williams
907-269-6632 - Anchorage