37 Malcolm RD, Braeside, VIC
How to Register a Trailer in Victoria: A Complete Step-by-Step Guide
22 June 2026 | roshartrailers
If you’ve just bought a new trailer or you’re about to, the registration process can feel like a maze. The rules vary depending on how heavy your trailer is, what you’re using it for, and when it was built. And if your trailer was manufactured after July 2023, there’s an extra layer of compliance requirements that a lot of people simply don’t know about yet.
This guide cuts through the confusion. Whether you’re a tradie running a cage trailer to worksites, a landscaper towing a tipper, a tiny house builder navigating custom trailer compliance, or a homeowner who just picked up a box trailer at auction this covers exactly what you need to do to get your trailer legally registered in Victoria.
Roshar Trailers has been manufacturing Australian-made trailers in Melbourne for over 15 years. Every trailer we build complies with Australian Design Regulations (ADR) and the Road Vehicle Standards Act 2019 (RVSA), so we know this process inside out.
Do You Need to Register Your Trailer in Victoria?
Not every trailer needs to be registered, so the first question is whether yours actually falls under the requirement.
In Victoria, a light trailer is exempt from registration if it meets all four of these conditions:
- It weighs less than 200kg unloaded
- It is no wider than the tow vehicle
- It is 3 metres or less in length (including the drawbar)
- It is not used for business purposes
That last condition catches a lot of people out. If you’re a sole trader using a small trailer to transport tools or green waste to client jobs, that trailer is no longer exempt even if it weighs next to nothing. Business use removes the exemption entirely.
If your trailer is exempt and you choose not to register it, it must display either the same registration plate as your tow vehicle, or an exempt trailer plate. You can’t just leave it blank.
Here’s the thing though: even if your trailer is exempt, there are good reasons to register it voluntarily. Registered trailers are easier to tow interstate without questions, they’re simpler to insure, and if you ever sell the trailer, a registered unit is a more straightforward transaction for the buyer.
Understanding Trailer Weight Classifications (ATM Explained)
Before you do anything else, you need to know your trailer’s ATM Aggregate Trailer Mass. This is the combined weight of the trailer itself plus its maximum allowable load. It’s not just the empty trailer weight.
The ATM is usually stamped on the manufacturer’s compliance plate, which is a metal tag fixed to the trailer frame or drawbar. If you can’t find it there, you can look up the trailer on the Register of Approved Vehicles (RAV) at infrastructure.gov.au.
Why does an ATM matter so much? Because it determines which registration process you follow:
| ATM | Registration Category |
| Up to 750kg | Light trailer simplified process |
| 750kg to 4.5 tonnes | Standard vehicle registration form |
| Over 4.5 tonnes | Heavy trailer additional requirements apply |
To give you a real example: a standard 8×5 box trailer from Roshar has an ATM around 750kg loaded. A 10×6 tandem cage trailer sits closer to 2 tonne ATM. A hydraulic tipper loaded with soil or aggregate can easily reach 3.5 tonne. Getting the category wrong doesn’t just cause delays at VicRoads, it can create problems with insurance coverage if something goes wrong on the road.
What Changed in July 2023 The New VicRoads Registration Rules
This is the section most people aren’t aware of, and it’s caught out a number of trailer buyers in the past couple of years.
On 1 July 2023, the transitional arrangements under the Road Vehicle Standards Act 2018 came to an end. The practical effect is significant: any trailer manufactured or imported after that date must now meet three additional requirements before it can be registered in Victoria:
- The trailer’s VIN must be recorded on the Register of Approved Vehicles (RAV)
- A trailer identification plate must be affixed to the trailer
- Where applicable, an import approval must be in place
The RAV is a national database that confirms a vehicle or trailer has been assessed and meets Australian road safety standards. Think of it as the national safety tick before a trailer is legally allowed on Australian roads.
If you bought a trailer manufactured before July 2023, none of this applies to you. But if you purchased a new trailer from a dealer or manufacturer after that date, ask specifically whether the trailer’s VIN is on the RAV. A reputable manufacturer like Roshar handles this compliance as part of the build and sale process but if you’re buying from a private seller or an unknown supplier, it’s worth verifying before you get to VicRoads and hit a wall.
Tiny house buyers in particular need to pay attention here. Custom-built tiny house trailers are often substantial in weight and complexity, and if the builder didn’t register the trailer platform with the RAV, you could find yourself with a structure that can’t legally be moved.
Who Can Register a Trailer in Victoria?
Any individual or company can register a trailer in Victoria, provided they have a VicRoads customer number.
For individuals: Your VicRoads customer number is your Victorian driver’s licence number or learner permit number. If you don’t have a Victorian licence, your customer number appears on any registration renewal notice for a vehicle already registered in your name.
For companies: The customer number is on your company’s myVicRoads account or any existing registration renewal notice. If your company has never registered a vehicle in Victoria before, you’ll need to visit a VicRoads service centre in person with proof of identity documents for the business.
Age requirements: You must be at least 16 years old to register a light trailer or caravan, and at least 18 for a heavy trailer. If the owner is underage, say a 17-year-old apprentice who’s been gifted a work trailer, someone else can register it in their own name on their behalf.
If you don’t have a Victorian licence or VicRoads customer number at all, you’ll need to visit a VicRoads service centre with full proof of identity before starting the registration process.
Step-by-Step: How to Register a Trailer in Victoria
Step 1 Confirm Your Trailer’s ATM and Dimensions
Start by locating the manufacturer’s compliance plate on your trailer. You’re looking for the ATM figure specifically. While you’re there, note the trailer’s overall dimensions too Victoria has maximum size limits that all registered trailers must comply with:
Height: no more than 4.3m (4.6m for livestock carriers and some low-profile semi-trailers)
Length: no more than 12.5m including the drawbar (14.6m for semi-trailers)
Width: no more than 2.5m including any guards, awnings or fixed fixtures
For most standard trailers box trailers, cage trailers, flat tops, even most tandem configurations you’ll be well within these limits. If you’re registering a car carrier, a long flat top, or a tri-axle trailer, it’s worth double-checking length in particular.
Step 2 Check RAV Compliance (Trailers Built After July 2023)
If your trailer was manufactured after 1 July 2023, confirm with your supplier or manufacturer that:
The trailer’s VIN is recorded on the Register of Approved Vehicles
The trailer identification plate is physically affixed
Import approval is in place if the trailer was imported
All new Roshar trailers come with this documentation included. If you’re buying second-hand or from an unfamiliar source, ask for written confirmation of RAV registration before you exchange money.
Step 3 Gather Your Documents
What you need depends on your ATM category:
Light trailers (ATM up to 750kg):
Completed Light Trailer Registration Form
Proof that the VIN is recorded on the RAV (for post-July 2023 trailers)
Proof of identity
Trailers between 750kg and 4.5 tonnes:
Completed Vehicle Registration Form (same form used for cars and trucks)
VIN and RAV documentation if applicable
Heavy trailers (ATM over 4.5 tonnes):
Completed Vehicle Registration Form
Heavy Trailer Nomination Form (required unless it’s a pig trailer or semi-trailer)
Certificate of Roadworthiness must be issued no more than 30 days before the date of sale or registration
Step 4 Book Your VicRoads Appointment
New trailer registrations generally can’t be completed entirely online; you’ll need to attend a VicRoads customer service centre in person, at least for the initial registration.
Book your appointment at vicroads.vic.gov.au. If you’re in Melbourne, the Braeside, Dandenong, and Bayswater areas have service centres nearby to Roshar’s locations. Wait times at metro centres can stretch out, especially mid-year when rego renewals stack up, so book as early as you can.
Bring all your documents, your VicRoads customer number, and your payment method. Don’t turn up without the paperwork assuming you can sort it at the counter you’ll just be rebooked
Step 5 Pay the Registration Fees
Registration isn’t a single flat fee. You could be paying up to five separate components:
Vehicle appointment fee
Vehicle inspection fee (if an inspection is required for your trailer type)
Trailer registration fee (the core annual fee)
Number plate fee (for new plates)
Motor vehicle duty (for heavy trailers, unless exempt)
Credit and debit card payments via Visa and Mastercard attract a surcharge. If you want to avoid the fee, bring a bank cheque or arrange a BPAY payment in advance.
Fees change periodically, so check the current fee schedule on the VicRoads website rather than relying on what someone else paid six months ago.
Step 6 Attach Your Plates and Keep Your Paperwork Safe
Once registered, affix your plates correctly. Don’t tow the trailer before the plates are on if you’re stopped and the trailer is unplated, it’s treated as unregistered regardless of whether the paperwork is in process.
Store your registration certificate somewhere sensible. Set a calendar reminder for your renewal date. In Victoria, you can renew up to 3 months after expiry without penalty, but towing with an expired registration is illegal and typically voids your trailer insurance. A landscaper who gets into an accident while towing an unregistered trailer is in a very difficult position with their insurer.
Registering Different Trailer Types What You Need to Know
Box Trailers and Cage Trailers
These are the most common trailer types registered in Victoria. A standard 6×4 or 8×5 box trailer or cage trailer used for personal use (weekend tip runs, moving furniture, garden waste) often falls under or near the 200kg exemption threshold if it’s a basic single-axle model.
However, if you’re using it for any business purpose, even occasionally register it properly. The cost of registration is minor compared to the legal exposure of towing an unregistered trailer on a job.
Flat Top and Plant Trailers
Flat tops used to transport equipment, forklifts, or machinery typically have ATMs well above 750kg once loaded. A Roshar 10×5 flat top trailer, for example, has an ATM in the 2–3.5 tonne range depending on configuration. You’ll be using the standard Vehicle Registration Form and should factor in a thorough check of load-related ATM before you arrive at VicRoads.
Tandem and Tri-Axle Trailers
Construction companies and farmers frequently run tandem or tri-axle configurations for heavy haulage. If your tandem trailer’s ATM exceeds 4.5 tonnes, you’re in the heavy trailer category meaning you’ll need a Certificate of Roadworthiness and, in most cases, a Heavy Trailer Nomination Form. Allow extra time for this process.
Hydraulic Tipper Trailers
Landscapers and civil contractors towing a hydraulic tipper need to be especially careful about ATM, because the rated capacity of a tipper can be deceptive. A 8×5 hydraulic tipper with a 3.5 tonne ATM is firmly in the mid-range category. Larger 10×6 or 12×7 tippers often sit above that depending on the load capacity.
Worth noting: if your tipper is used on worksites and public roads, ensure the registration category matches your actual use, a tipper registered as a light trailer that routinely carries 1.5 tonne loads is non-compliant.
Car Carrier Trailers
Automotive businesses towing vehicles need to pay close attention to length. A 16×6 beaver tail car trailer is significantly longer than most general-purpose trailers. At 4.9 metres in length (just the trailer, not including the drawbar), you’re well within the 12.5m limit, but you’ll want to account for total rig length when driving and positioning.
Tiny House Trailers
This is a category that’s growing fast, and it has some of the most complex registration considerations. A tiny house trailer platform is typically a purpose-built flat top or flat bench trailer, often in the 3.5 to 4.5 tonne ATM range when the structure is included.
If your tiny house was built after July 2023, the trailer must be on the RAV. Many tiny house builders are sole traders who may not have been aware of this change if you’re buying a pre-built tiny house, ask for the RAV documentation as part of due diligence. Moving a tiny house that’s on a non-compliant trailer is a legal and logistical nightmare.
Custom Trailers
Custom trailers built to your specifications must still comply with ADR and RVSA requirements. When you commission a custom trailer from a registered manufacturer, they should provide you with compliance documentation, the manufacturer’s plate, and RAV registration details. This is standard practice at Roshar; our custom trailer buyers receive full documentation as part of delivery.
Transferring Trailer Registration in Victoria
Buying a second-hand trailer? Registration doesn’t automatically transfer to you you need to formally transfer it at VicRoads.
The good news is that a roadworthiness certificate (RWC) is only required for heavy trailers (ATM over 4.5 tonnes) when transferring registration. For light and mid-range trailers, the transfer process is more straightforward. If an RWC is required, it must be issued no more than 30 days before the sale date so if the seller has one that’s two months old, it’s not valid.
Both the buyer and seller typically need to complete transfer paperwork. The transfer isn’t instantaneous until it’s processed, the previous owner is still on record as the registered operator.
A practical tip for tradies buying used equipment trailers: always confirm the trailer’s registration status before handing over money. An unregistered trailer cannot be legally towed on public roads. Run a VicRoads check, and if the registration is lapsed, factor in the cost and time of re-registration before agreeing to a price.
Taking Your Registered Victorian Trailer Interstate
A Victorian-registered trailer can be towed in other Australian states without re-registering it your Victorian registration is recognised nationally. But you do need to ensure it’s registered in Victoria before you leave.
Farmers and rural property owners who regularly cross the Victoria-NSW or Victoria-SA borders should also note that while the trailer registration is mutually recognised, towing weight limits and equipment requirements (such as brake requirements) can differ slightly between states. If you’re regularly operating in multiple states with a heavy trailer, it’s worth familiarising yourself with the towing regulations in those states too.
For tiny house owners moving their home interstate: your Victorian trailer registration must be current, and the structure must comply with road transport requirements in the destination state. Some states have specific requirements for oversized loads. If your tiny house exceeds 2.5m in width or 4.3m in height, you may need a transport permit in addition to standard trailer registration.
Common Mistakes to Avoid When Registering a Trailer in Victoria
1. Assuming business use doesn’t matter “It’s only a small trailer, I use it occasionally for work” this is the most common mistake. The exemption threshold doesn’t apply if the trailer is used for business at all. If you’re a sole trader towing a trailer to any job, register it.
2. Not verifying RAV compliance on a post-July 2023 trailer Turning up at VicRoads with a new trailer that isn’t on the RAV means you leave without registration. Always confirm this with your supplier before making the trip.
3. Using the wrong ATM figure Some people mistakenly use the tare weight (empty weight) instead of the ATM when determining their registration category. The ATM is the maximum loaded weight, it’s the higher number, and it’s the one that matters for registration.
4. Forgetting the Certificate of Roadworthiness for heavy trailer transfers If you’re buying a second-hand heavy trailer (over 4.5T ATM), the seller needs to provide a current RWC. Many private sellers don’t know this or try to pass on the cost. Don’t accept a transfer without it, you’ll be stuck sorting it out yourself.
5. Letting registration lapse and towing anyway This one has real consequences. Towing an unregistered trailer is illegal, attracts fines, and almost certainly voids your insurance. If something goes wrong, even a minor accident you’re personally liable for any damage or injury.
6. Not booking VicRoads in advance Walk-ins aren’t guaranteed at VicRoads service centres, particularly in metro Melbourne. Book your appointment online, bring everything you need, and don’t expect to sort it out on the day without preparation.
If you’re in the market for a trailer that comes fully compliant and ready to register manufacturer’s plate, RAV documentation, and ADR-compliant construction included explore Roshar’s range of Australian-made trailers across our Melbourne locations in Braeside, Bayswater North, and Dandenong. We build trailers for tradies, contractors, landscapers, farmers, and businesses across Victoria, and we can talk you through the registration requirements for any trailer you’re considering before you buy.
Faq’s
1. How do I register a trailer in Victoria?
To register a trailer in Victoria, you generally need to check your eligibility, confirm the trailer details, prepare identification and supporting documents, book the correct VicRoads appointment if required, and pay the applicable registration fees.
2. Do all trailers need registration in Victoria?
Not every trailer is treated the same. Some small or exempt trailers may not need registration, while larger or road-use trailers usually do. Always check VicRoads rules before using a trailer on public roads.
3. Do I need a roadworthy certificate to register a trailer in Victoria?
For many light trailers, a roadworthy certificate is not required, but the trailer still needs to be safe and suitable for road use. Lights, tyres, coupling, safety chains and the general trailer condition should be checked before registration.
4. What documents are needed to register a trailer in Victoria?
You may need proof of identity, trailer details, proof of ownership, VIN or chassis information, and any required forms or appointment details. Requirements can vary depending on whether the trailer is new, used, homemade, imported or previously unregistered.
5. Can I register a homemade trailer in Victoria?
Yes, a homemade trailer may be registered in Victoria if it meets the required standards and identification requirements. You may need to confirm the trailer’s VIN, specifications, weight and compliance before registration can be completed.
