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Alert The Tax Division Offices are closed to the public until further notice. This includes both the Juneau and Anchorage offices and lobbies. Please call (907)269-6620 for assistance. Our employees are still working and able to provide customer service over the phone.

SOME DEPARTMENT OF REVENUE TAX DEADLINES EXTENDED TO JULY 15, 2020.

DEPARTMENT OF REVENUE TAX COMPLIANCE PROGRAM TEMPORARY SUSPENSION PLAN

Notice of Extended Filing and Payment Deadline for Alaska Corporate Income Tax


Quarterly Interest Rate





Interest continues to accrue until paid in full. Interest is calculated as follows:

Effective Apr. 1, 2020, through Sept. 30, 2020

  • 5.50% interest compounded quarterly

Effective Jan. 1, 2020, through Mar. 31, 2020

  • 7.50% interest compounded quarterly

Oct. 1, 2019, through Dec. 31, 2019

  • 7.75% interest compounded quarterly

Jan. 1, 2019, through Sept. 30, 2019

  • 8.25% interest compounded quarterly


Oct. 1, 2018, through Dec. 31, 2018

  • 8% interest compounded quarterly


July 1, 2018, through Sept. 30, 2018

  • 7.75% interest compounded quarterly


April 1, 2018, through June 30, 2018

  • 7.50% interest compounded quarterly


Jan. 1, 2018, through March 31, 2018

  • 7.25% interest compounded quarterly


July 1, 2017, through Dec. 31, 2017

  • 8.75% interest compounded quarterly for Oil and Gas Production
  • 4.75% simple interest for all other tax types

April 1, 2017, through June 30, 2017

  • 8.50% interest compounded quarterly for Oil and Gas Production
  • 4.50% simple interest for all other tax types

Jan. 1, 2017, through March 31, 2017
  • 8.25% interest compounded quarterly for Oil and Gas Production
  • 4.25% simple interest for all other tax types

Jan. 1, 2016, through Dec. 31, 2016
  • 4% simple interest

Jan. 1, 2014, through Dec. 31, 2015
  • 3.75% simple interest

Oct. 1, 2007, through Dec. 31, 2013
  • 11% interest compounded quarterly

July 1, 2006, through Sept. 30, 2007
  • 11.25% interest compounded quarterly

Oct. 31, 1991, through June 30, 2006
  • 11% interest compounded quarterly

July 1, 1982, through Oct. 30, 1991
  • 12% simple interest