Treasurer - Treasurer

(Please see for the latest version of this information)

Home > Treasurer


Welcome to the Ada County Treasurer’s Office!  We are pleased to offer you the convenience of viewing your property tax assessment notices and property tax bills electronically.  As part of this service, you may also register for email and/or text notifications when these documents are ready for review.  This includes the original tax bill created each November.

Please note:

  • If your property taxes are paid through escrow by a mortgage lender, you can also view any delinquent notices on your parcel.
  • If you are responsible for paying your property taxes, you can also view any delinquent notices on your parcel and a Reminder Notice for the second half installment due by June 20.
  • If you recently paid off your mortgage and did not notify us of this change before May 3, please contact our office for the current status of your taxes.

We also offer the convenience of electronic payments.  When processing a debit or credit card, a convenience fee of 2.4% of the transaction amount applies.  You may also process an e-check for a flat fee of $3.00.

Thank you for supporting our initiative for more effective electronic solutions.


The 2nd half tax payments need to be postmarked by the US Postal Service by 5:00 pm on June 20, 2019, to avoid late fees and interest. (In house mail meters are not proof of a timely payment)

Other Ways to Pay Your Bill

Remember to Reference Your Parcel!

Tax bills are mailed to each parcel. Failure to receive a tax bill does not excuse a taxpayer from paying the taxes, late charges or interest accrued.

Telephone Payments Call Voice Integrated Number: 1-844-471-7324

  • E-Checks: A flat fee of $3.00 applies.
  • Debit/Credit Cards: A convenience fee of 2.4% applies.
Mailing in a Payment Use blue or black ink only on written checks. Do not staple, tape, paperclip or glue your payment. Include coupon provided if mailing payment.

  • Makes checks payable to: Ada County Treasurer
  • Send US POST MARK to: PO BOX 2868, Boise, ID 83701
Pay in Person While there is a short wait time, we can professionally process payments in our office. We accept cash, check, money orders, and credit cards. Visit us Monday – Friday 8:00 am to 5:00 pm at the following locations:

  • County Courthouse – 200 W. Front St.
  • Public Administration Building – 182 N. Cloverdale Rd. (MAY 30TH – JUNE 20TH ONLY). Download Copy of Map
Secure Drop Box We offer a secure drop box at the Public Administration Bldg. located at 182 N. Cloverdale Rd. for after-hours payments beginning on May 30th and ending on June 20th.

Contact Assessor’s Office For:


Questions About Your Assessed Value?


Understanding Property Taxes on New Construction Homes

  • 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.
  • 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. If a developer owned the property they may have a “developer’s exemption”. Once ownership changes the exemption is no longer applicable.