Home Driver's License Idaho
Idaho Driver's License validator
How the Driver's License format works
- Format
- 2 letters, 6 digits, then 1 letter, or 9 digits
- Example
- AB123456C
Things to watch for
- Format-only check — does not confirm the license actually exists, is valid, or is registered to a real driver
- The number encodes no checksum digit we verify; a purely numeric 9-digit alternate form is also documented
- Runs entirely in your browser — nothing you type is transmitted or stored
^([A-Z]{2}\d{6}[A-Z]|\d{9})$An Idaho driver’s license number most commonly follows an unusual bookended shape: two letters, then 6 digits, then a single trailing letter — e.g. AB123456C — issued by the Idaho Transportation Department (ITD). That structure, with a letter on both ends of a digit run, is uncommon among US states, most of which put at most one letter at the very front. A plain 9-digit all-numeric alternate form is also documented for Idaho and accepted here.
What this checker verifies
This tool accepts either the 2-letter/6-digit/1-letter bookended form or the 9-digit numeric form, rejecting anything that fits neither — such as a missing trailing letter, a digit count off by one, or a leading letter pair where digits should be.
What a pass doesn’t confirm
Neither documented Idaho shape carries a check digit this tool can verify, so a correct format match is the strongest signal a browser-only check can offer. It doesn’t confirm ITD actually issued that number, that the license is currently valid, or that it belongs to a real driver — and nothing you type is decoded or stored.
Scope: format-only validation across both documented forms, entirely client-side.
Content last reviewed 2026-08-09.
Driver's License FAQ
What is the format of an Idaho driver's license number?
Two letters, followed by 6 digits, followed by a single trailing letter — e.g. AB123456C — issued by the Idaho Transportation Department (ITD). A plain 9-digit all-numeric alternate form is also documented and accepted.
Why does an Idaho number have letters on both ends?
ITD's primary format bookends the 6 digits with a letter before and a letter after, a structure that's uncommon among US states — most letter-prefixed formats use just one leading letter, not one on each side.
Does a valid format confirm the license is currently active?
No. It only confirms the string matches one of the two documented shapes, not that ITD has that number on file or that the license is valid.