Trailer registration is more than a legal box to check—it confirms ownership, supports road safety, and ensures your trailer is compliant with state laws. Whether you’re towing a cargo hauler, utility trailer, or camper, having it properly registered gives you peace of mind and keeps you road-ready. It also helps protect your investment if your trailer is ever lost, stolen, or involved in an incident.

However, registration requirements vary from state to state depending on factors like weight, trailer type, and how it’s used. Understanding these differences is key to avoiding delays, fines, or surprises at the DMV.

In this guide, we’ll walk you through the typical steps to register your trailer—from figuring out if registration is required to getting your license plate—so you know what to expect before your next adventure.

IMPORTANT! Always check with your state’s DMV or transportation agency for the most accurate and current information.

Determine If Your Trailer Needs to Be Registered

Most trailers used on public roads—whether it's a utility, cargo, boat, or travel trailer—require registration. This includes models like Let’s Go Aero’s LittleGiant All-Terrain Trailer and the SpecOps Overland Trailer, which are designed for on-road towing and adventure use.

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Some states offer exemptions for farm-use trailers, ultra-lightweight trailers, or those used exclusively on private property. In these cases, registration may not be required, or only minimal documentation is needed.

Reminder: Every state defines trailer registration rules differently. Always check with your local DMV to confirm whether your specific trailer needs to be registered. For more details on trailer types, see our guide: What Is a Utility Trailer.

Gather Required Documents

Once you’ve confirmed your trailer needs to be registered, the next step is to gather the required documents. While exact paperwork may vary by state, coming prepared will help avoid delays and extra trips to the DMV.

Here are the typical documents you may need: Proof of ownership: This is usually the trailer’s title for used models or a Manufacturer’s Certificate of Origin (MCO) for new ones. In some cases, a notarized bill of sale or prior registration may be accepted. Government-issued ID: Bring a valid driver’s license or state-issued identification. If registering under a business, you may also need a business license or FEIN. Completed application form: Most DMVs have a trailer registration application available online. Fill it out in advance with details like the trailer’s VIN, make, model, year, and weight—but wait to sign it until instructed by a DMV official.

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• Proof of insurance (if required): Some states require insurance for certain trailer types, such as campers or larger units. Check with your DMV to confirm if coverage is needed for your trailer.
• Weight certificate or inspection form: Homemade trailers or those without listed weights may require a certified weight slip from a weigh station or a safety inspection.
• USDOT Number: If you are planning to use your trailer for commercial purposes you will need to check and see if your trailer and use will require you to need a USDOT number.
• Tip: Have both originals and copies of your documents ready for your DMV visit to help the process go more smoothly.

If you're missing key documents—like a title—pause and resolve those issues first by contacting the seller or following your DMV’s process for bonded or replacement titles.

Confirm MCO & Title Requirements

Registration and Manufacturers Certificate of Origin (MCO) or title often go hand-in-hand, but they serve different purposes: a title proves ownership, while registration allows you to legally operate the trailer on public roads with a license plate and current tags. Depending on your trailer and your state, you may need to obtain a title before registering.

Not all states require titling trailers, especially for lightweight, small, or homemade models. Some states only issue titles for trailers over a certain weight threshold (typically 1,000–3,000 lbs). If a title is required, your DMV will typically need either the Manufacturer’s Certificate of Origin (MCO) for new trailers or a signed title for used ones. The MCO is often provided by the dealer at purchase and can be used to apply for the initial title and registration.

• For used trailers, make sure the seller gives you a properly completed title with accurate buyer/seller info. If no title is available, your DMV may accept a prior registration and bill of sale as alternative proof of ownership.
• Check with your DMV to understand whether titling and registration happen separately or as a combined process. Getting this right up front can save time and prevent issues later—especially if you're buying or transferring ownership.

Get a Vehicle Identification Number (VIN), If Needed

Every trailer manufactured by a legitimate company comes with a vehicle identification number (VIN), usually 17 characters, stamped on a plate or sticker attached to the frame (often on the tongue or near the front left side). You’ll need this VIN for registration and title paperwork. However, there are scenarios where a trailer might not have a VIN or you can’t find it.

Sorting out VIN issues might require an extra appointment or form, but it's a one-time process. Check your state DMV’s guidance—some handle VIN inspections themselves, while others may direct you to local law enforcement. Once your VIN is established, trailer registration becomes straightforward.

Complete the Registration Application

With your documents in order, it’s time to submit your trailer registration application. Depending on your state, you may be able to apply in person, online, or by mail, though first-time registrations often require an in-person visit to verify documents. As part of the process, you’ll provide personal details (name, address, license number) and trailer information like make, model, year, VIN, and weight. If there’s a loan on the trailer, list the lienholder; otherwise, mark it as lien-free. You’ll also need to complete a sales tax section, especially if the trailer was purchased from a private seller. Expect to pay various fees—including registration fee, title fee, inspection (if applicable), and possibly late fees if you're behind schedule.

Pro tip: DMV lines can be long—schedule an appointment if your state allows it to save time and avoid delays.

Submit Payment and Receive Your Trailer Plates/Decal

Now for the moment of truth – submitting your paperwork and payment at the DMV (or tag office) and getting that shiny new plate for your trailer. Here’s what happens at this stage: Congratulations—your trailer is now legally ready for the road! Securely attach your plate, ensure lights work, and safely store your paperwork. Keep Your Registration Current Trailer registration isn’t a one-and-done task—you’ll need to keep it current just like your vehicle’s registration. Staying on top of it helps you avoid issues when towing and ensures you’re always road-legal. Keeping your registration up to date is a key part of responsible trailer ownership, helping you stay safe, legal, and ready to roll at a moment’s notice.

Additional State-Specific Requirements to Consider

As you go through the registration process, keep in mind that each state has its own quirks and additional requirements. We've covered a few already, but here are some more state-specific factors to watch for:

• Sales tax on private trailer sales:
  Some states require you to pay sales or use tax when registering a trailer purchased from a private seller. The tax is usually based on the purchase price listed on the bill of sale.
• Brake light or safety inspection requirements:
  Several states mandate trailer safety inspections either at the time of registration or on a recurring schedule—especially for trailers over a certain weight. These checks often include lights, brakes, tires, and reflectors.
• Out-of-state registration transfer rules:
  If you're bringing a trailer in from another state, you may need to undergo a VIN inspection or provide additional documentation to transfer the registration. Be sure to review your new state’s transfer process and deadlines to avoid penalties.

Remember: Trailer rules and requirements vary widely by state. If you’re traveling or relocating, always confirm your trailer meets registration and equipment standards in every state you pass through. When in doubt, it’s safest to keep your trailer fully registered and road-ready.

Getting on the Road

With your trailer now properly registered, titled, and sporting a license plate, you’re almost ready to roll. This final section is a quick checklist and some friendly advice before you get on the road with your newly legal trailer:

• Double-check your hitch and connections:
  Before towing, always ensure the trailer coupler is securely attached, safety chains are crossed, the electrical plug is connected, and the breakaway brake cable (if present) is attached. Proper connections are crucial for safe travel.
• Verify lights and brakes:
  Perform a quick check of your trailer’s turn signals, brake lights, tail lights, and license plate light. Confirm trailer brakes function correctly and fix any issues before hitting the road. For more trailer maintenance suggestions, check out our blog: Trailer Maintenance Tips.
• Check tire pressure and lug nuts:
  Inspect all trailer tires for proper inflation and wear, and ensure lug nuts are tight. This simple check helps prevent blowouts and wheel separation during travel.
• Mind your towing capacity:
  Stay within your vehicle’s towing limits, whether using a motorhome, SUV, or electric car. Refer to our Motorhome Towing Capacity guide if you need a refresher on weight ratings and towing limits.
• Take it slow and get a feel:
  If you're new to towing, practice in a safe area to become comfortable with turning, braking, and reversing. Ensure your trailer is loaded and balanced correctly to prevent sway and undue stress on your vehicle.
• Enjoy the journey:
  Now that your trailer is legally registered, and your registration card handy, you can confidently embark on your adventures, knowing you're compliant and safe on the road.

Final reminder:

Always confirm the latest requirements directly with your local DMV, as rules may change. Use resources like the NHTSA state DMV directory if traveling or moving to ensure continued compliance.

Your Trailer, Fully Registered and Road-Ready

Trailer registration safeguards your legality and safety on the road. While the process involves paperwork and fees, methodical preparation simplifies it. Always double-check your state’s DMV portal for updates, as laws evolve. With plates secured, you’re ready to tow with confidence—whether hauling gear to a campsite or equipment for a job.