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Alert Juneau Tax Division Office Mailing Address Update 

All mail sent to the Tax Division office in Juneau through the U.S. Postal Service must be addressed to P.O. Box 110420, Juneau, AK 99811. Beginning Oct. 1, the Post Office will not deliver mail to the division’s Willoughby Avenue address, and the mail will be returned to the sender. In those cases, tax returns and payments may miss their filing deadline. This change does not affect the Anchorage Tax Division office.

Consumer Alert

Consumer Protection Unit warns of IRS Tax Scam


Quarterly Interest Rate





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

Effective October 1, 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