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Other Information

Below is some other information and additional reference materials parties may find helpful or informative. For questions regarding the below topics or any other aspect of the BTA’s services, please contact the Boise office at 208-334-3354. Be advised staff cannot provide legal advice or guidance.



Filing Date (Postmark Rule)

A critical factor in determining a court’s jurisdiction in a particular matter is whether the action or motion was timely filed with the court. The date an action is filed is referred to as the filing date. Though the term appears straightforward, there are a couple things to keep in mind. In the context of the Board of Tax Appeals (BTA), the filing date refers to the date an appeal or motion is either mailed or hand-delivered to the BTA (or county clerk). For hand-delivered items, the filing date is the date such item is delivered to the BTA’s Boise office during regular business hours. For items mailed to the BTA the filing date is the postmark cancellation, not the date such materials are received by the BTA. See Idaho Code § 63-217.

The same holds true for appealing a decision of a County Board of Equalization (BOE). The filing date is the date indicated by the post office cancellation mark, not the date a taxpayer’s appeal is received by the county clerk/auditor. A postage meter mark is not a post office cancellation mark. Any notice of appeal or motion bearing a postage meter mark will be considered filed upon receipt of such material by the BTA or county clerk/auditor. It is important to remember the person filing the notice of appeal or motion is responsible for correctly addressing the materials being filed. If a filing is not properly addressed, the filing date becomes the date such materials are received by the BTA or county clerk/auditor.

As a quick reference guide, below are general filing deadlines for actions appealed to the BTA:

Idaho’s Fixed Value Law
Pro Hac Vice
Appealing to District Court
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