Your audit number is a tracking code printed on your driver's license or ID card, usually in small text on the back
The audit number is not the same as your license number. It's a separate code that some states use to verify the authenticity of your ID or to track records within their motor vehicle system. Not every state includes it, and the location and format vary by state.
If you need this number, the fastest way is to look at your physical card first. If you can't find it there or don't have your card with you, your state's Department of Motor Vehicles (DMV) can tell you what it is and where to look.
Key Takeaways
- The audit number is printed on your driver's license or ID card, usually on the back in small text, though its exact location depends on your state.
- Not all states use an audit number, so if you cannot find one on your card, your state may not include this code.
- Your state's DMV website or customer service line can confirm whether your state has an audit number and help you locate it.
- The audit number is different from your driver's license number and is typically used for verification or internal record-keeping purposes.
Check the back of your physical license first
Most states that use an audit number print it on the back of the card. Look for a series of numbers or alphanumeric characters in smaller font than your main license number. The exact placement varies — it might be near the bottom, along the edge, in a corner, or even printed vertically along the side of the card.
If your license is worn or the text is faded, the number may be hard to read. Holding the card under good light or using a magnifying glass can help. If you still cannot make it out, take a photo of the back of the card and zoom in on the image. Sometimes the contrast in a digital photo makes faded text easier to see than looking at the physical card.
Pay attention to any text labeled "audit," "control," "security," or similar terms. Some states use different terminology for this code, so reading all the fine print on the back will help you spot it.
Contact your state's DMV if you cannot locate it
Call your state's Department of Motor Vehicles customer service line or visit their website. Have your driver's license number and full name ready. The DMV can confirm whether your state assigns audit numbers and, if so, tell you where to find yours on your card or provide it directly.
Many states also let you look up this information through their online portal if you create an account. Check your state DMV's website for a "license lookup," "account services," or "my license" section. Some states charge a small fee for this service, while others provide it free. The online route is often faster than calling, especially during busy times.
If you're calling, be prepared to wait. DMV phone lines can have long hold times. Having your information ready before you call — your license number, date of birth, and the last four digits of your Social Security number — will speed up the process once you reach someone.
Why you might need this number
Audit numbers are typically requested when you need to verify your identity or when a government or financial institution is checking the authenticity of your ID. They may also be used in background checks, when you're updating records with a state agency, or when law enforcement needs to confirm your license is genuine.
If someone has asked you for your audit number, make sure you understand why they need it before sharing it. Legitimate requests usually come from government agencies, law enforcement, or institutions you've already contacted directly. If you're unsure, you can always call that organization back using a phone number you find independently to confirm the request is real.
What to do if your state doesn't have an audit number
Not every state includes an audit number on its driver's licenses or ID cards. If you've looked at your card carefully and cannot find one, and the DMV confirms your state doesn't use them, then there is no number to find. Some states rely on other security features or verification methods instead.
If someone is asking for an audit number and your state doesn't issue one, ask them what they actually need to verify your identity. They may be looking for your license number, your date of birth, the expiration date of your license, or another piece of information instead. Don't assume they need something that doesn't exist — they may straightforward be using outdated forms or procedures.
Frequently Asked Questions
Is the audit number the same as my driver's license number?
No. Your driver's license number is the main identifier on your card, usually printed prominently on the front. The audit number is a separate code, typically smaller and on the back, used for verification or internal tracking purposes.
What if I lost my license and need the audit number?
Contact your state DMV directly. Explain that you've lost your card and need the audit number. They can look it up in their system using your name and date of birth or other identifying information. You may need to visit an office in person or provide additional verification.
Can I find my audit number online without calling the DMV?
Some states allow you to view your license information, including the audit number, through their online DMV portal. Visit your state's DMV website and look for a self-service account or license lookup tool. You'll typically need to log in with your license number and other personal details.
Why would a bank or government office ask for this number?
They may need it to verify that your ID is authentic or to cross-reference your records in their system. Always confirm you're speaking with a legitimate organization before sharing any information from your license.
What if I can't read the audit number on my card?
Try photographing the back of your card and zooming in on the image, or use a magnifying glass under bright light. If the text is too worn to read, the DMV can provide the number directly when you call or visit their website portal.