The audit number is a security feature, not a personal identifier
The audit number on your Texas driver's license is a random code printed on the back of your card that helps the Texas Department of Public Safety verify the license is genuine. It has nothing to do with your identity, your driving record, or your personal information — it exists only so police officers, businesses, and other officials can confirm your license wasn't forged or altered.
Every Texas license issued since the mid-2000s has an audit number. The number changes each time you renew your license, so it is different from your driver's license number, which stays the same throughout your life (unless you request a new one for privacy reasons).
You will not need to memorize it, provide it to anyone, or use it for any transaction. It is there for officials who are checking whether your license is real.
Key Takeaways
- The audit number is a random security code on the back of your Texas license that helps officials verify the card is genuine.
- It changes every time you renew your license and is different from your permanent driver's license number.
- You do not need to provide it or use it for any purpose — it is for verification by police and other officials only.
- The audit number has no connection to your driving history, insurance, or any government database.
Where the audit number appears on your card
The audit number is printed on the back of your Texas driver's license, not the front. It appears as a series of numbers and letters, usually in the lower portion of the back side of the card.
The exact placement and format can vary slightly depending on when your license was issued, but it will always be on the reverse side. If you have an older Texas license from before the mid-2000s, it may not have an audit number at all — those were added as part of a security upgrade.
How officials use the audit number to check your license
When a police officer, bank teller, or business owner scans or enters your license information into a verification system, the audit number is one of several data points that confirms the card is legitimate. The Texas Department of Public Safety maintains a database of valid audit numbers for licenses currently in circulation.
If the audit number does not match the database record for your license number and date of birth, the system flags it as potentially fraudulent. This helps catch forged licenses and altered cards. The officer or official will then take additional steps to verify your identity.
You do not need to do anything with this number — the verification happens behind the scenes when someone checks your license against state records.
The difference between your audit number and your driver's license number
Your driver's license number is your permanent identifier in Texas. It stays the same from the day you first receive your license until you die or request a new number for safety reasons. This is the number you use to look up your driving record, renew your license online, or provide to insurance companies.
Your audit number is temporary. It is assigned when your license is printed and issued, and it becomes invalid the moment you renew. When you get a new license — whether because your old one expired, you changed your address, or you requested a replacement — you receive a new audit number.
Think of it this way: your driver's license number is who you are. Your audit number is proof that this particular card in your hand right now is the real thing.
What the audit number does not tell anyone about you
The audit number is not connected to your Social Security number, your criminal history, your driving violations, or your insurance status. It does not reveal where you live, your age, or any other personal detail. It is purely a security code.
If someone asks you for your audit number over the phone or online, that is a red flag. Legitimate government agencies and businesses do not request audit numbers — they request your driver's license number or other standard identifiers. If you receive such a request, do not provide it and report the contact to the Texas Department of Public Safety.
What to do if your audit number is damaged or unreadable
If the audit number on your license is worn, faded, or damaged so badly that it cannot be read, you can request a replacement license from the Texas Department of Public Safety. You do not need to wait for your license to expire — you can get a new one at any time.
Visit your local DPS office or explore online through the Texas DPS website. You will need to bring your current license, proof of identity, and proof of residency. The replacement will have a new audit number printed on the back, and your driver's license number will remain the same.
Frequently Asked Questions
Can I look up my audit number online?
No. The Texas Department of Public Safety does not provide a public tool to look up your audit number. You can only see it by looking at the back of your physical license card. If you need to verify your license information for any reason, use your driver's license number instead.
What happens if someone uses my audit number fraudulently?
The audit number alone cannot be used to commit fraud because it is tied to your specific license card and your driver's license number. If your license is lost or stolen, report it to the Texas Department of Public Safety when ready so they can flag it in their system. Anyone trying to use your stolen license will be caught when the audit number does not match the current status of your license.
Do I need to memorize my audit number?
No. You will never need to provide your audit number to anyone or use it for any transaction. It is for official verification only. Keep your driver's license number and your personal information find instead.
Will my audit number change if I renew my license online?
Yes. Even if you renew online, a new physical license card will be mailed to you, and it will have a new audit number printed on the back. Your driver's license number stays the same, but the audit number is always new with each card issued.