What Is the Legal Limit for Lift Kits in Australia? A State-by-State Guide
If you're planning to lift your 4WD or ute, the first question shouldn't be "how high can I go?" — it should be "what's the legal limit for lift kits in Australia where I live?" Lift kits are one of the most popular 4WD upgrades in the country, giving you extra ground clearance, room for bigger tyres, and a more capable stance for touring and off-roading. But go too far without the right paperwork, and you risk a defect notice, a voided insurance claim, or a vehicle that fails its next inspection.
In this guide, we break down the legal lift kit limits by state, explain when you'll need engineering certification, and point you toward suspension systems that are designed to keep you compliant while still delivering a serious capability upgrade.
Understanding the National Code of Practice (NCOP)
Most of Australia's vehicle modification rules are built around the National Code of Practice for Light Vehicle Construction and Modification (NCOP), also known as VSB14. As a baseline, VSB14 states that any increase in ride height above 50mm — whether from suspension, tyres, or a combination of both — must be certified by a licensed engineer, regardless of how that lift is achieved. Suspension travel must also be maintained at a minimum of two-thirds of the vehicle's original travel in both bump and rebound.
From there, individual states and territories have adopted their own exemptions on top of the NCOP baseline, which is why the legal lift height varies depending on where you're registered. Let's go through each one.
Legal Lift Limits in Australia by State
New South Wales (NSW)
NSW allows a total lift of up to 75mm without certification, made up of a maximum 50mm suspension lift plus up to 25mm gained from larger tyres. At least two-thirds of the original suspension travel must be retained. Anything beyond 75mm requires certification from a licensed VSCCS engineer.
Victoria (VIC)
Victoria was the first state to adopt the 75mm exemption, permitting a combined 50mm suspension lift and 25mm tyre lift without approval. Modifications beyond this threshold need sign-off from a VicRoads-approved engineering signatory, and ESC-equipped vehicles may require additional testing.
Queensland (QLD)
QLD also allows a combined 75mm lift (50mm suspension plus 25mm tyre diameter increase) without certification for most 4WDs. Lifts between 51mm and 100mm require certification, and body blocks of up to 50mm can be added on certified vehicles, provided the total lift doesn't exceed 150mm. Note that MA-classified vehicles are treated differently, so it pays to check with the Department of Transport and Main Roads if you're unsure.
Western Australia (WA)
WA follows the NCOP baseline more closely, capping the total lift — suspension, body, and tyres combined — at 50mm without certification. Anything higher needs to be signed off by an approved engineer.
South Australia (SA)
SA also applies the standard 50mm limit without certification. Larger lifts are achievable but require certification from an approved engineer to confirm the vehicle still meets safety standards.
Tasmania (TAS)
Tasmania caps uncertified lifts at 50mm. Beyond that, a licensed vehicle certifier needs to sign off on the modification before it's considered roadworthy.
Northern Territory (NT)
The NT is the most generous jurisdiction in the country, allowing a combined lift of up to 100mm (suspension, body, and tyres) without certification. Go beyond 100mm and you'll need a full engineering assessment, which may include a lane-change stability test.
Australian Capital Territory (ACT)
The ACT applies the standard NCOP position through Access Canberra, meaning lifts above 50mm require certification by a recognised engineering signatory before the vehicle can be inspected and approved.
When Do You Need Engineering Certification?
Regardless of state, you'll generally need certification if:
- Your combined suspension and tyre lift exceeds your state's uncertified threshold (50mm, 75mm, or 100mm depending on where you live)
- You're fitting a body lift in addition to a suspension lift
- Your vehicle is fitted with Electronic Stability Control (ESC) and the modification could affect its operation
- You can't maintain at least two-thirds of the original suspension travel in bump and rebound
A certified engineer will assess ride height, suspension travel, steering geometry, and braking performance before issuing the paperwork you'll need for registration and insurance purposes.
Choosing a Compliant Suspension Lift Kit
The safest way to stay within the legal limit for lift kits in your state is to start with a kit engineered for the job, rather than stacking spacers or budget components that push you over the threshold without warning. Our suspension range includes constant-load and touring kits designed to deliver a controlled, predictable lift.
EFS is one of Australia's most trusted suspension brands, and their Elite and XTR kits are built specifically for popular tourers and tow vehicles, with load ratings to suit accessories like bull bars, winches, and camper trailers.
For those wanting a suspension system engineered and tested locally, Outback Armour is another standout, with Expedition and Expedition HD kits featuring Bilstein shocks and leaf spring packages tuned for Australian conditions.
You'll find the full EFS 4x4 range and the complete Outback Armour collection in store, with kits available for most popular utes and wagons. If you're also planning to step up in tyre size, remember that larger tyres count toward your total lift figure — browse our wheels and tyres range before finalising your build so the numbers add up correctly.
Where to Start: Our Recommended Build Order
If you're building toward a legal, capable setup, we'd suggest tackling it in this order:
1. Decide on your target lift height based on your state's uncertified limit, or budget for certification from the outset
2. Choose a quality constant-load suspension kit rated for your vehicle's accessories and touring weight
3. Match your tyre diameter increase to what's left in your state's allowance
4. Book an alignment and, if required, organise your engineering certification before your next inspection
5. Round out the build with supporting accessories like extended brake lines, adjustable panhard rods, or a torque rod, depending on how far you've lifted
EFS suspension components are backed by EFS's manufacturer warranty, giving you peace of mind that your lift kit is built to last.
Get It Right the First Time
Understanding the legal limit for lift kits in Australia before you buy saves you money, hassle, and potential defect notices down the track. Our team at Brixton 4x4 can help you choose a suspension kit that matches your state's requirements and your vehicle's intended use. Get in touch with our team for tailored advice on your next suspension upgrade.
Disclaimer: This article is a general guide only and does not constitute legal advice. Vehicle modification rules can change, so always confirm current requirements with your state or territory's road transport authority before modifying your vehicle.