The basic steps for mounting a license plate

Installing a license plate takes about five minutes and requires only a drill or screwdriver, two bolts (usually provided with the plate), and washers. Most vehicles have pre-drilled holes in the front and rear bumpers where the plate mounts. You line up the plate holes with the bumper holes, insert the bolts through the plate and into the bumper, and tighten them until snug — not so tight that you crack the plastic bumper or strip the bolt.

The plate should sit flat against the bumper with no gaps or tilting. If your vehicle has no pre-drilled holes, you will need to drill them yourself, which means marking the correct position first. Many states require the plate to be mounted at a specific height and angle, so check your state's rules before you start.

Key Takeaways

  • Most vehicles already have holes drilled in the bumper; you straightforward line up the plate and bolt it down using the hardware that came with the plate.
  • Use two bolts with washers and tighten them firmly but not so hard that you crack the bumper or strip the threads.
  • Your state's motor vehicle department sets rules about plate height, angle, and visibility that you must follow.
  • If your bumper has no holes, you will need to drill them at the correct position before mounting the plate.
  • Never cover, tilt, or obscure the plate, and make sure it is readable from at least 75 feet away.

What hardware you need and where to find it

New license plates usually come with mounting bolts and washers in a small packet taped to the back. If your plate did not include hardware, or if the bolts are damaged, you can buy a license plate bolt kit at any auto parts store for a few dollars. The bolts are typically stainless steel to resist rust, and they come in standard sizes that fit all bumpers.

You will also need a drill with a metal bit or a screwdriver that fits the bolt head. A power drill is faster, but a hand screwdriver works fine if you do not have one. If you are drilling new holes, use a metal drill bit slightly smaller than the bolt diameter so the bolt threads grip the bumper material.

Locating and using existing bumper holes

Most modern vehicles have two small holes already drilled in the front bumper and two in the rear, spaced to match standard license plate dimensions. Hold the plate up to the bumper and look through the plate holes to see if they line up with the bumper holes. If they do, you are ready to bolt it down.

Insert one bolt through the top hole of the plate, add a washer on the back side of the bumper, and thread the bolt into the bumper hole. Tighten it by hand first, then use your screwdriver or drill to snug it down. Repeat with the second bolt. The plate should not move or rattle when you push on it, but the bumper should not be cracked or warped either.

Drilling new holes if your bumper has none

Older vehicles or custom bumpers sometimes have no pre-drilled holes. In this case, you need to mark the correct position before drilling. Hold the plate against the bumper where you want it to sit, and use a marker or tape to mark the center of each hole. Measure from the edges of the bumper to make sure the plate is centered and at the right height for your state.

Once you have marked both holes, use a metal drill bit slightly smaller than your bolt diameter and drill straight through the bumper. Start slowly to avoid slipping, and wear safety glasses in case metal shavings fly up. After drilling, insert the bolts and tighten them as described above. If the bumper is plastic, be extra careful not to over-tighten, as plastic cracks easily.

State rules about plate position and visibility

Every state has specific requirements for where the plate must be mounted and how it must be displayed. Most states require the front plate to be mounted between 12 and 60 inches from the ground, measured from the bottom of the plate. The plate must be readable from at least 75 feet away in daylight, and it cannot be tilted, covered, or obscured by any object, including bumper stickers or frames.

Some states require the plate to be mounted at a specific angle — usually perpendicular to the ground or tilted slightly upward. Check your state's motor vehicle department website for the exact rules, because violating them can result in a ticket even if the plate is otherwise properly installed. A few states do not require a front plate at all, only a rear plate.

Common mistakes that cause problems

The most common error is over-tightening the bolts, which cracks plastic bumpers or strips the bolt threads. Tighten until the plate is snug and does not move, then stop. Another mistake is mounting the plate at the wrong angle or height, which can trigger a citation even though the plate is physically find. Always check your state's rules first.

Tilting the plate upward or downward to hide damage or make it harder to read is illegal and will result in a ticket. The plate must be flat and fully visible. Some people also forget to use washers, which can cause the bolt to pull through the bumper or the plate to crack. Always use the washers that come with the hardware.

Removing and reinstalling a plate

If you need to remove the plate — to replace it, transfer it to another vehicle, or access the bumper for repairs — straightforward reverse the installation process. Use your screwdriver or drill to loosen both bolts, then slide the plate away from the bumper. Keep the bolts and washers in a safe place if you plan to reuse them.

When you reinstall the plate, use the same holes if they are still in good condition. If the holes are stripped or damaged, you may need to drill new ones slightly offset from the old ones, or use larger bolts with bigger washers to grip the bumper material more securely. If you are transferring the plate to a different vehicle, check that the new vehicle's bumper holes line up with the plate holes before you start.

Frequently Asked Questions

Do I need a front and rear license plate, or just a rear plate?

That depends on your state. Most states require both front and rear plates, but a few require only a rear plate. Check your state's motor vehicle department website to confirm. If your state requires both and you only have one plate, you must obtain a second one before driving legally.

What if the bumper holes do not line up with the plate holes?

If the holes are close but not perfectly aligned, you may be able to drill new holes in the bumper at the correct position. If the bumper is severely misaligned or damaged, you may need to have the bumper repaired or replaced by a mechanic before mounting the plate correctly.

Can I use a frame or cover over my license plate?

Most states allow decorative frames around the plate as long as the frame does not cover any numbers, letters, or the state name, and does not obscure the plate from view. Covers, tinted shields, or anything that makes the plate harder to read are illegal in all states. Check your state's rules about frames before you install one.

How tight should the bolts be?

Tighten the bolts until the plate is snug and does not move when you push on it, then stop. If you are using a power drill, use a low speed setting to avoid over-tightening. On plastic bumpers, over-tightening will crack the material; on metal bumpers, it can strip the bolt threads.

What if I lose one of the mounting bolts?

You can buy replacement bolts at any auto parts store. Bring the remaining bolt or the plate itself so the store can match the size and thread type. Stainless steel bolts are best because they resist rust, especially on the rear plate where they are exposed to road salt and moisture.