What license plate tag lights are and why they matter

A license plate tag light (also called a license plate light or tag light) is a small light mounted above or below your license plate that illuminates the plate at night. Its job is to make your plate readable when it's dark — so police can identify your vehicle and other drivers can see your registration number if needed.

Most states require at least one working tag light. Some require two. If your tag light is burned out or missing, you can be stopped and cited, even if everything else about your vehicle is legal. The fine varies by state but typically ranges from $20 to $100 for a burned-out light alone.

Tag lights are different from headlights and taillights. They're a separate system, and they fail independently. A burned-out tag light doesn't mean your other lights are broken — but it does mean you need to fix it before driving.

Key Takeaways

  • Most states require at least one working license plate light, and some require two — check your state's vehicle code to know what applies to you.
  • A burned-out tag light is a citable offense in most states, even if your headlights and taillights work fine.
  • Tag lights typically use a standard bulb (often a 194 or 168 type) that costs $3 to $10 and takes five to ten minutes to replace yourself.
  • If you're cited for a burned-out tag light, you can often show proof of repair to a court or traffic office to reduce or dismiss the fine.

State requirements for license plate lights

Requirements vary by state. Most states require at least one working light that illuminates the rear license plate. Some states require two lights — one on each side of the plate or one above and one below. A few states have no specific rule about tag lights but do require that your plate be visible at night, which effectively means you need working lights.

Your state's vehicle code or DMV website will list the exact requirement. Search "[your state] license plate light requirements" or check your state's DMV handbook. If you're unsure, call your local police non-emergency line and ask — they can tell you what the rule is in your jurisdiction and whether your current setup meets it.

Some states also specify the color of the light (white is standard) and the brightness level. LED tag lights have become common and are legal in most states, but check your state's rules if you're considering an upgrade.

How to replace a burned-out tag light

Most tag light replacements are a DIY job that takes five to ten minutes. First, identify which bulb your vehicle uses — check your owner's manual or search "[your vehicle year/make/model] license plate light bulb type." Common types are 194, 168, 921, or 912.

Buy the correct bulb at an auto parts store or online for $3 to $10. Then locate the light housing on your vehicle (usually mounted directly above or below the rear license plate). Some housings twist out from behind the bumper; others have a small screw or clip you remove. Once the housing is out, the bulb usually twists or pulls straight out. Insert the new bulb, twist or push it back in, and reinstall the housing.

If you're not comfortable doing this yourself, any auto parts store will install a bulb for free if you buy it from them. A mechanic or dealership will also do it, usually for $15 to $30 in labor. The total cost is almost always under $50.

What happens if you're cited for a burned-out tag light

A citation for a burned-out license plate light is typically a minor traffic violation, not a criminal offense. The fine is usually $20 to $100 depending on your state and local court. Some jurisdictions also add court costs or processing fees.

In many places, you can reduce or dismiss the fine by showing proof that you've repaired the light. Take a photo of the working light or get a receipt from an auto parts store showing you bought and installed the correct bulb. Contact the court or traffic office listed on your citation and ask about a "fix-it" or "correctable violation" process — many courts will reduce the fine to $0 or a small processing fee ($5 to $15) if you show proof of repair within a set time frame (usually 30 to 60 days).

If you were cited for a burned-out tag light and also received other citations in the same stop, the tag light citation may be dismissed or reduced as part of a plea agreement, depending on the other charges and your local court's practices.

LED and aftermarket tag lights

LED tag lights are brighter, last longer, and use less power than traditional incandescent bulbs. They're legal in most states and are becoming standard on newer vehicles. If you want to upgrade, buy an LED bulb in the same size as your original (194, 168, etc.) and install it the same way.

Some aftermarket tag light kits include a housing with multiple LEDs or a different design. These are legal as long as they produce white light and don't exceed the brightness limits set by your state. Check your state's vehicle code before installing anything unusual — some states have strict rules about light color and intensity.

If you buy an aftermarket kit and it doesn't work or causes other electrical issues, you can always go back to a standard bulb. Keep your receipt in case you need to return it.

Tag lights and vehicle inspections

In states that require vehicle inspections, a burned-out tag light will cause your vehicle to fail inspection. You won't be able to renew your registration until the light is fixed and the vehicle passes re-inspection. This is true even if the light burned out the day after your last inspection.

If you're due for inspection soon and your tag light is out, replace it before your inspection appointment. If you've already failed inspection because of a tag light, fix it and schedule a re-inspection. The re-inspection fee is usually $10 to $30.

Frequently Asked Questions

Can I get a ticket just for a burned-out tag light?

Yes. A burned-out license plate light is a citable offense in most states. An officer can stop you for it alone, though in practice it's often cited alongside other violations. The fine is typically $20 to $100, but many courts reduce it if you show proof of repair.

Do I need two tag lights or just one?

It depends on your state. Most require at least one; some require two. Check your state's DMV handbook or vehicle code, or call your local police non-emergency line to confirm what applies to your vehicle.

What if my tag light housing is cracked or missing?

You'll need to replace the entire housing, not just the bulb. Auto parts stores sell replacement housings for $15 to $40. Installation is similar to bulb replacement — the housing usually clips or screws into place. If you're unsure, an auto parts store or mechanic can install it for you.

Will a burned-out tag light affect my insurance?

A burned-out tag light itself won't affect your insurance rates. However, if you're cited for it and the citation leads to a traffic conviction, that conviction could appear on your driving record and potentially affect your rates. Showing proof of repair to reduce or dismiss the citation helps avoid this.

Are LED tag lights brighter and do they last longer?

Yes to both. LED bulbs are brighter than incandescent ones and typically last 10,000 to 50,000 hours compared to 1,000 hours for traditional bulbs. They're legal in most states and cost $5 to $15 per bulb. Install them the same way as a standard bulb.