In Tennessee, most trailers do need license plates, but the state exempts several common categories: privately owned utility trailers under 8 feet wide and 20 feet long (not counting the tongue) used for personal purposes, boat trailers within those same dimensions, and farm trailers used exclusively for agriculture or hauling livestock between farm and market.1tnclerks.zendesk.com. Trailers Everything else — campers, fifth-wheels, commercial trailers, rental trailers, pole trailers, and mobile homes — needs a plate.
Trailers That Don’t Need a Plate
The exemption that covers the most owners is the size-and-use one. A privately owned trailer that measures less than 8 feet wide and less than 20 feet long (tongue excluded) does not require registration in Tennessee, as long as a Tennessee-licensed vehicle is doing the towing. Boat trailers fall under this same size-based exemption.1tnclerks.zendesk.com. Trailers
The word “personal” carries real weight here. A utility trailer that qualifies for the exemption on Saturday because you’re hauling mulch for your yard stops qualifying on Monday if you start using it for a landscaping business. Any trailer used in the course of a business must be registered, with the narrow exception of trailers held for public rental (which still need plates, just under a different classification).
Farm trailers get a separate exemption. Trailers owned by farmers and used exclusively for agricultural purposes, or for transporting livestock between a farm and a market, are exempt from both registration fees and taxes.2Justia. Tennessee Code 55-4-111 – Registration Fees
You can register an exempt trailer voluntarily if you want to. Some owners do, mostly because other states don’t necessarily honor Tennessee’s exemptions.
Trailers That Must Be Registered
Tennessee requires registration for any motor vehicle operated on public roads, and that requirement extends to most trailers.3Justia. Tennessee Code 55-4-101 – Registration Required Before Operation The categories that need plates include:
- Campers, bumper-pull (tag-a-long) trailers, and fifth-wheel trailers. Personal campers do not qualify for a semi-trailer plate.
- Any trailer used in the course of a business, other than rental trailers.
- Pole trailers, regardless of size.
- House trailers and mobile homes, with fees based on width.
- Trailers held for public rental.
If your trailer isn’t small enough for the size exemption, isn’t a farm trailer under the agricultural exemption, and isn’t strictly for personal use, plan on registering it.
What Registration Costs
Trailer registration fees in Tennessee are set by statute and depend on trailer type and axle count. Standard trailer fees are modest, and most trailer plates are permanent — they stay on the trailer for as long as you own it, with no annual renewal. Semi-trailers that don’t require apportioned plates can be permanently registered for a one-time fee of $122.75.4tnclerks.zendesk.com. Registration Overview
Sales tax applies at purchase. The Tennessee state rate is 7 percent, but the state portion is capped on high-value single items: purchases above $1,600 are taxed at 2.75 percent on the amount between $1,600 and $3,200, with no state tax on the portion above $3,200. Local sales tax still applies to the full price.5TN.gov. Due Dates and Tax Rates A title fee is collected at registration as well.
How to Register a Trailer in Tennessee
Registration happens at your local County Clerk’s office. What you bring depends on how you acquired the trailer.
For a new trailer, bring the Manufacturer’s Statement of Origin. For a used trailer, bring the certificate of title, properly assigned by the previous owner. If no title exists, a bill of sale can substitute as proof of ownership, though the clerk may ask for additional documentation. Either way, you also need a valid driver’s license and proof of Tennessee residency, plus payment for the registration fee, title fee, and any sales tax owed.6TN.gov. Registration New
Moving to Tennessee with a trailer already registered elsewhere? Bring your current out-of-state registration and, if there’s a loan on the trailer, the lienholder’s name and address. Your out-of-state title works if you don’t have the lienholder information handy.
What “Exempt” Doesn’t Get You Out Of
Not needing a plate does not mean your trailer can skip safety equipment. Federal and Tennessee law both impose lighting and braking rules that apply to every trailer on the road. Even a small exempt utility trailer needs working tail lights, brake lights, and turn signals if it blocks the towing vehicle’s own lights.7National Highway Traffic Safety Administration. Interpretation ID nht89-3.54 Trailers over 3,000 pounds gross weight generally need independent brakes.8eCFR. 49 CFR Part 393 Subpart C – Brakes Safety chains are required, crossed beneath the hitch with enough slack for turns but not enough to drag.9Federal Motor Carrier Safety Administration, DOT. 49 CFR 393.71 – Coupling Devices and Towing Methods
The exemption also stops at the state line. There is no federal rule requiring other states to honor Tennessee’s trailer exemptions. Some states require every trailer on their public roads to carry a plate, and towing an unplated trailer into one of them can result in a fine and an order to register locally.10Wisconsin State Legislature. 2025 Wisconsin Statutes 341.04 – Operation of Unregistered or Improperly Registered Vehicle If you routinely tow across state lines with an exempt trailer, voluntary Tennessee registration solves the problem cheaply.
Penalties for Driving Without a Required Plate
If your trailer should be registered and isn’t, you’re subject to citation. Failing to properly display registration plates carries a fine of $10 for a first violation and $20 for each subsequent violation.11Justia. Tennessee Code 55-4-110 – Display of Registration Plates, Penalty for Violation Small fines, but the traffic stop that produces them is its own inconvenience.
Mobile homes and house trailers face much steeper consequences. Transporting one in violation of Tennessee law is a Class B misdemeanor: $250 for a first offense, $500 for a second offense within 12 months, and $1,000 plus a 90-day license revocation for a third or later offense in the same period.12Justia. Tennessee Code 55-4-412 – Penalty for Violating Part
The practical rule is straightforward. Small personal utility trailer, boat trailer within the size limit, or a farm trailer used only for farming? No plate needed. Anything else, or the same trailer used for business? Get it registered before you tow it.