How to get the Ada County, ID delinquent tax list

The list of properties with unpaid taxes in Ada County is a public record. Ask for it under the Idaho Public Records Act (Idaho Code § 74-102) with the free letter below. Fill in your details and it is ready to send.

Ada County at a glance

Who to ask
The office that collects property taxes in Ada County. Depending on the county that is the treasurer, tax collector or tax commissioner.
The law
The Idaho Public Records Act (Idaho Code § 74-102).
Response time
The office must respond within 3 business days. A response can be the file, a date it will be ready, or a cost estimate.
Who can ask
Anyone can ask. You do not need to live in Idaho.
Cost
Offices can charge for copies or staff time on a large data pull. The letter asks for an itemized estimate first.
Does LienSuite have it?
Yes. We hold the Ada County delinquent list with 5,184 properties.

Idaho rules to know before you send it

Idaho Code § 74-120

Idaho bars using lists of names and addresses from public records as mailing or telephone solicitation lists, and the office may ask you to confirm that you will not. Confirm it only if that is true of how you will use the list.

Your Ada County records request letter

It updates as you type. Copy it into an email or the county's request form, or download or print it.

Your details stay in your browser. This page does not send anything to the county or to us.

Email subject: Public records request: delinquent property tax list, Ada County, Idaho

November 7, 2026

Records Custodian, Ada County property tax office
Ada County, Idaho

Subject: Public records request: delinquent property tax list, Ada County, Idaho

Dear Records Custodian:

Under the Idaho Public Records Act (Idaho Code § 74-102), I request a copy of the current list of real property accounts with delinquent property taxes in Ada County, Idaho.

Please include these fields, to the extent your office keeps them:
- Parcel or account number
- Owner name
- Property (situs) address
- Owner mailing address
- Tax years that are delinquent
- Amount owed (by year, if your office keeps it that way)

I would like the list in electronic form (CSV or Excel), sent by email to [Your email]. A file your office already produces is fine. I am not asking you to create a new record.

If there is a charge, please send me an itemized estimate first if it will be more than $25.

If the list will not be ready within 3 business days, please let me know when I can expect it.

If you withhold any part of the list, please tell me which exemption applies and send the rest.

Thank you for your help.

Sincerely,

[Your name]
[Your mailing address]
[Your email]

How to send it

  1. Check what Ada County already posts. Many tax offices publish the delinquent list on their website or in a newspaper notice before a tax sale. If it is posted, you may not need a request at all.
  2. Find the records contact. Look on the tax office's website for an open-records email address or online request portal. If the office has its own form, you can paste this letter into it.
  3. Send the letter and keep a copy. Note the date you sent it. In Idaho, the office has 3 business days to respond, and a response can be the file, a date it will be ready, or a cost estimate.
  4. Approve or question the estimate. Large data pulls can carry a fee for staff or computer time. Ask what it covers before you pay.

Or skip the wait

We already have the Ada County delinquent list (5,184 properties). Look at a free sample first, then download the whole list for $27, or $39 with deal scores and heir and deceased-owner signals.