Wisconsin title answers · Vehicle types
How do you title a homemade trailer in Wisconsin?
Short answer
By mail, to WisDOT's Vehicle Research Unit: a signed MV1, a written statement of how you built or got the trailer, original parts receipts that show sales tax was paid, photos of all four sides including the hitch, and the fees. A homemade trailer does not need an inspection, unlike a homemade car. The part people miss is weight: if it tops 3,000 pounds loaded, WisDOT's FAQ says it needs lights, chains and brakes plus an ID number assigned by the DMV.
If you built it yourself
WisDOT's homemade trailer page asks for these, mailed to the Vehicle Research Unit, WisDOT, P.O. Box 8070, Madison WI 53708-8070:
- Form MV1, completed and signed. Keep a copy.
- A written statement explaining how you built the trailer.
- Original receipts or invoices for the parts, showing sales tax was paid.
- For materials you already owned (the axle off an old trailer, steel from the shed), a detailed written explanation of where they came from.
- Photos of the finished, assembled trailer from all four sides, with the hitch showing.
- A check or money order to Registration Fee Trust for the $214.50 title fee, any plate fee, and taxes.
If you bought someone else's homemade trailer
This is the more common case: a neighbor welded it up years ago, it never had a title, and now it is yours. WisDOT wants copies of any proof of ownership the builder or earlier owner had, plus an original bill of sale that shows the year the trailer was built and the price you paid. Then the same MV1, statement, photos and fees.
Where these get stuck: a bill of sale with no build year, or a photocopy instead of the original. Ask the seller to write the year it was built, even an approximate one, and sign it. In your statement, say who built it, roughly when, what it was made from, and how it came to you.
No inspection, but weight changes the rules
WisDOT calls the homemade trailer the most common homemade vehicle and says it does not need an inspection before title and registration. Homemade cars and motorcycles are different: they go through a safety equipment inspection after WisDOT receives the application.
WisDOT's vehicle inspection FAQ draws the line at 3,000 pounds loaded. Over that, a homemade trailer has to meet the requirements for lights, chains and brakes, and the DMV must assign it an ID number. Weigh it, or figure its loaded weight honestly, before you fill in the MV1.
Small trailers: plates optional, title still smart
Under Wis. Stat. 341.05(13m), a trailer with a gross weight (trailer plus heaviest load) of 3,000 pounds or less that is not used for hire or rental is exempt from registration. Section 341.06 still lets you register it if you want.
WisDOT's page adds that all trailers, regardless of weight and size, should have a title. With a homemade one that advice carries extra weight. Without a title, the next buyer has only your word and a bill of sale, and they end up rebuilding the trailer's history from scratch the way you may be doing now.
When it is not really homemade
If the trailer came from a manufacturer and simply lost its title, the homemade checklist is the wrong tool. A factory trailer without a title goes through the bonded title process on MV2082. Our $97 kit walks through that form if your trailer turns out to be one.
Step by step
- Weigh the trailer or estimate its loaded weight, and fix lights, chains and brakes first if it is over 3,000 pounds.
- Photograph the finished trailer from the front, back, both sides, with the hitch visible.
- Gather the parts receipts, or write out where each material came from.
- Fill out and sign MV1 and write your statement of how the trailer was built or acquired.
- Mail it all with the fee check to the Vehicle Research Unit in Madison.
Common questions
Do I need a bonded title for a homemade trailer?
Not for one you built or bought as homemade. WisDOT has a separate homemade trailer checklist built around receipts, photos and your statement.
Can I title a homemade trailer at a DMV counter?
WisDOT's homemade trailer page sends everything by mail to the Vehicle Research Unit in Madison, so plan on mailing it.
I built it on an old trailer frame that had its own title. What do I send?
Send that title too and explain in your statement which parts came from it. WisDOT's homemade vehicle page asks for the original titles of any vehicles used in a build.
My receipts do not show sales tax. Is that a problem?
WisDOT asks for receipts that show tax was paid. If yours do not, explain the purchases in your statement, and check with WisDOT before you mail it so you are not guessing.
Want us to do the paperwork?
You tell us your situation. We fill out the WisDOT forms for it and give you a checklist of what to include. You review, sign and mail the package yourself.
If the state asks for a bond, you buy it from a licensed surety of your choosing. We take no commission.
- ✓ $299, one flat fee, bonded titles included
- ✓ Track your case online
- ✓ The application is in your name from the start
State fees are paid to WisDOT. Any bond premium is paid to the surety you choose.
Prefer to fill out the forms yourself? The $97 do-it-yourself kit walks you through every form field, the real costs, and the 12 reasons packets get rejected.
Related answers
Wisconsin trailer titles
Which trailers need a title and how to get one.
Read this guide →Does a small utility trailer need a title in Wisconsin?
Not at 3,000 lbs gross or less if it is not for hire, since that trailer is exempt from registration. Heavier or rented trailers need title and plates.
Read this guide →How do you title a kit car or homemade vehicle in Wisconsin?
WisDOT has no kit car category. Builds are titled homemade (HMDE), reconstructed (RCON), replica or street modified, and each has its own rules.
Read this guide →How do you title a camper or travel trailer with no title in Wisconsin?
With no title, a Wisconsin camper or travel trailer goes the bonded route: MV2082 + MV1, then a bond of 1.5x value ($2,500 minimum).
Read this guide →What if a vehicle has no VIN plate in Wisconsin?
Find the number elsewhere, then have an officer confirm it on form MV3623B. If no number exists, WisDOT can assign one once it is satisfied you own it.
Read this guide →Sources, checked 2026-10-31: WisDOT: Homemade trailer · WisDOT: Homemade vehicles · WisDOT: Vehicle inspection FAQs (trailers) · Wis. Stat. 341.05, registration exemptions · Wis. Stat. 341.06, optional registration. Rules can change; confirm with WisDOT before you file.
TitleFiled is a document-preparation and title-recovery assistance service operated by Nuvent66 LLC, a Wisconsin limited liability company. It is not a law firm, does not provide legal advice, and is not affiliated with, authorized by, or endorsed by any DMV or government agency, including the Wisconsin Department of Transportation (WisDOT). We do not guarantee that any agency will approve or issue a title. Information on this page is provided for general reference, was verified against official WisDOT sources on the date shown, and is not legal advice.