Home Driver's License Wisconsin
Wisconsin Driver's License validator
How the Driver's License format works
- Format
- 1 letter followed by 13 digits
- Example
- A1234567890123
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; the leading letter is typically the first letter of the holder's last name
- Runs entirely in your browser — nothing you type is transmitted or stored
^[A-Z]\d{13}$A Wisconsin driver’s license number is one letter followed by 13 digits — e.g. A1234567890123 — issued by the Wisconsin Department of Motor Vehicles. At 14 characters total, it’s one of the longest license-number formats covered on this site, shorter only than New Jersey’s 15-character format. Wisconsin shares its name-derived leading-letter convention with Florida, Illinois, Maryland, and Michigan: the letter is typically the first letter of the holder’s last name.
Reading the format
This tool confirms the input is exactly one letter followed by 13 digits, which is enough to catch a wrong digit count, a missing leading letter, or stray characters left over from copy-pasting a long scanned number. It does not attempt to verify that the letter matches any particular surname.
What a pass doesn’t tell you
Wisconsin’s number carries no check digit this tool recomputes, so a correct 14-character shape match is the limit of what a browser-only check confirms. It doesn’t confirm the DMV actually issued that number, or that the license is currently valid.
Scope: format-only validation, entirely client-side.
Content last reviewed 2026-08-09.
Driver's License FAQ
What is the format of a Wisconsin driver's license number?
One letter followed by 13 digits — e.g. A1234567890123 — issued by the Wisconsin Department of Motor Vehicles (DMV). At 14 characters total, it's the second-longest license-number format among US states, behind only New Jersey's 15.
Does the leading letter on a Wisconsin license mean anything?
It's typically the first letter of the holder's last name under the DMV's issuance convention — the same name-derived style used by Florida, Illinois, Maryland, and Michigan — but this checker doesn't verify that encoding.
Does a valid format confirm the license belongs to a real person?
No. It only confirms the shape is right. Confirming who holds a specific number requires DMV's own driver records.