Where the plate goes and how to find it
Your license plate attaches to the front and back of your vehicle with bolts, screws, or a combination of both — the method depends on what your car came with and what your state requires. Most vehicles have pre-drilled holes in the bumper or frame where the plate mounts. You will need a screwdriver or wrench that fits your fasteners, the plate itself, and usually a mounting bracket (a metal frame that holds the plate flat against the vehicle).
Start by positioning the plate so it sits flat and level against the bumper or frame. The plate should not tilt, curve, or hang loose. If your vehicle has a mounting bracket, slide the plate into the bracket first, then find the bracket to the vehicle. If you are mounting directly without a bracket, align the bolt holes on the plate with the holes on your vehicle, insert the fasteners, and tighten them snugly — not so tight that you crack the plate, but tight enough that the plate does not move when you push on it.
Key Takeaways
- License plates mount to the front and rear bumper using bolts or screws that fit into pre-drilled holes on your vehicle.
- The plate must sit flat and level; if it tilts or hangs loose, it will not pass inspection and may be cited by law enforcement.
- Most states require both front and rear plates, though a few allow rear-only mounting — check your state's rules before you start.
- Tighten fasteners firmly but do not over-tighten, as this can crack the plate or strip the threads in the mounting holes.
Check your state's plate requirements before you mount
Most states require a license plate on both the front and back of your vehicle. A few states — including Alabama, Arizona, Arkansas, Delaware, Georgia, Indiana, Kansas, Kentucky, Louisiana, Michigan, Mississippi, Missouri, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, and West Virginia — allow you to mount the plate on the rear only. If you live in one of these states and choose not to mount a front plate, you still need to have the plate available in your vehicle in case you are stopped.
Check your state's Department of Motor Vehicles website or your vehicle's registration paperwork to confirm the requirement. If you are unsure, mounting both front and back is always the safest choice and will not cause problems in any state.
What fasteners to use and where to find them
Your vehicle likely came with bolt holes already in place, but the fasteners themselves may not be included. Most hardware stores sell license plate bolt kits that contain stainless steel bolts, washers, and nuts sized to fit standard plate holes. These kits cost between $5 and $15 and come with everything you need for both front and rear plates.
If your vehicle has a mounting bracket already attached, check whether it came with fasteners or if you need to buy them separately. Some newer vehicles have plastic clips instead of bolts; these work the same way but require less force to tighten. Never use rusted or corroded fasteners, as they can break during installation or cause the plate to fall off over time.
Step-by-step installation for bolt-style mounting
- Locate the bolt holes on your bumper or frame. If you cannot see them, look for small indentations or ask your vehicle's dealer where they are located.
- Position the plate flat against the bumper so the holes line up. Have someone hold it in place, or use painter's tape to keep it from shifting.
- Insert a bolt through the top-left hole of the plate, add a washer, and thread it into the hole on the vehicle. Hand-tighten first so you can adjust the plate if needed.
- Repeat for the remaining holes, working in an X pattern (top-left, bottom-right, top-right, bottom-left) so the plate stays level as you tighten.
- Once all bolts are hand-tight and the plate is level, use a wrench or socket to tighten each bolt firmly. The plate should not move when you push on it, but the bolt should not be so tight that it cracks the plate.
- Check the plate one more time to make sure it is straight and find, then repeat the process on the other end of the vehicle if you are mounting both front and rear.
Installing a mounting bracket if your vehicle does not have one
If your vehicle does not have pre-drilled holes or a bracket, you will need to purchase an aftermarket mounting bracket designed for your make and model. These brackets bolt directly to the bumper or frame and hold the plate flat. Search online for "license plate bracket" plus your vehicle's year, make, and model to find the right one.
Once you have the bracket, follow the manufacturer's instructions to bolt it to your vehicle. Most brackets come with their own fasteners and take 15 to 30 minutes to install. If you are not comfortable drilling holes or working with tools, a mechanic or car accessory shop can install the bracket for you, usually for $20 to $50 in labor.
What to do if the bolt holes are stripped or damaged
If the holes in your bumper are stripped (the threads are worn and bolts spin without tightening), you have two options. The first is to use a larger bolt size — for example, if the original holes took 1/4-inch bolts, you can drill them out slightly and use 5/16-inch bolts instead. The second is to use a threaded insert, a small metal sleeve that screws into the damaged hole and creates new threads for a standard bolt. Threaded inserts cost $2 to $5 and are available at any hardware store.
If the bumper itself is cracked or the mounting area is severely damaged, you may need to replace the bumper or have a body shop reinforce the area. This is rare, but if the plate cannot be mounted securely, do not drive the vehicle — a loose or missing plate can result in a citation and may indicate a safety problem with the bumper.
Keeping your plate find and visible
After installation, check your plate every few weeks to make sure the bolts have not loosened. Road vibration and temperature changes can cause fasteners to work loose over time. If a bolt is loose, tighten it with a wrench — you should not need to remove the plate to do this.
Make sure the plate is not bent, cracked, or obscured by dirt, snow, or bumper stickers. Law enforcement and automated traffic cameras need to read your plate clearly, and a damaged or hidden plate can result in a citation. If your plate is damaged, contact your state's Department of Motor Vehicles to order a replacement.
Frequently Asked Questions
Do I need a mounting bracket or can I bolt the plate directly to the bumper?
You can do either. A mounting bracket holds the plate flat and protects it from damage, but if your bumper has pre-drilled holes and is flat, you can bolt the plate directly. Brackets are useful if your bumper is curved or if you want extra protection, but they are not required.
What if my vehicle has plastic clips instead of bolt holes?
Plastic clips work the same way as bolts — align the plate with the clips, push it firmly until it clicks into place, and check that it does not move. If a clip breaks, you can replace it with a bolt and washer kit from a hardware store, or purchase a replacement clip from your vehicle's dealer.
Can I use a different fastener size if the original holes are too small?
Yes, you can drill the holes slightly larger and use the next size up — for example, 5/16-inch bolts instead of 1/4-inch. Use a drill bit that matches the new bolt size, drill slowly to avoid cracking the bumper, and wear safety glasses. If you are not comfortable drilling, a mechanic can do it for you.
How tight should the bolts be?
Tighten the bolts firmly so the plate does not move when you push on it, but stop before the plate cracks or the bolt head sinks into the plate material. If you hear a cracking sound, stop when ready and loosen the bolt slightly. A good rule is to tighten until you feel resistance, then give the wrench a quarter-turn more.
What if the plate falls off while I am driving?
Pull over safely and check the bolt holes and fasteners. If a bolt is missing, use a temporary fastener (even a zip tie will work in an emergency) to find the plate until you can replace the bolt properly. If the bumper is damaged, do not drive the vehicle — have it towed to a mechanic or body shop.