Treasurer - Treasurer

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Contact the Treasurer’s Office

Main: (208) 287-6800
Fax: (208) 287-6809
Mail: P.O. Box 2868, Boise, ID 83701
Office: 200 W. Front Street, Boise, ID 83702

Attention Mortgage, Lending & Title Companies as well as Taxing Agencies. Due to a new policy, please submit your requests for any tax information, tax payoffs or questions to

2018 Missed Tax Bills are in the Mail

Missed tax bills are in the mail. These bills can occur for a number of reasons. Some examples of items that may appear on a missed property tax toll include removal of a developer’s exemption or property characteristic errors caught after the regular property tax roll closed. Your property may have received a primary property tax bill, a subsequent property tax bill, and a missed property tax bill, depending on the circumstances surrounding your property. Missed roll bills can be identified by “Tax Roll: 2ND SUB” on the upper right corner of your bill.


  • E-Tax: If you requested an electronic copy of your tax bill via e-tax please watch your email’s inbox and spam folders for an email from Billing Document Specialists (BDS) with this subject line: ADA COUNTY 2018 PROPERTY TAX ATTACHED.

These tax payments are created in February with the first half payment being due by 5:00 pm on March 20th and the second half payment being due by 5:00 pm on June 20th. Please be mindful that late charges and interest fees will apply if not paid timely.


  • In person:
    • Courthouse – 200 W. Front St., Mon. – Fri. from 8:00 a.m. to 5:00 p.m.
  • By mail: P.O.Box 2868, Boise, ID 83701 (Please note USPS postmark must be indicated on or before the due dates; metered postage is not applicable).
  • Pay by Credit Card or E-Check: visit (Please note convenience fees will apply)
  • Pay by Integrated Voice Recognition: 1-844-471-7324 (Please note convenience fees will apply).


  • Primary Roll: If you are the property owner of new construction you will receive a property tax bill for the land and any structure on the property prior to improvements starting.
  • Subsequent Property Tax Roll or Occupancy Roll: If construction is completed after the primary roll assessment deadline of May then you will receive a tax bill for the improvement or structure in January which will be due by February 20, 2019. If a developer owned the property they may have a “developer’s exemption”. Once ownership changes the exemption is no longer applicable.
  • Missed Roll: The Assessor’s Office may reassess the property from date of ownership change to December 31. This generates a missed roll bill sent in February and due by March 20, 2019.

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