Lift kits are one of the most popular 4WD modifications in Australia, and one of the most misunderstood. Every state and territory sets its own rules for how far you can raise a vehicle before the modification needs formal approval, and those rules have changed several times in recent years. This guide gives you an indicative picture of where each state currently sits, what triggers engineering certification, and the questions to ask before you order a kit. It is general information only, not legal advice, and the rules do change, so always confirm the current requirements with your state road authority before modifying your vehicle.
The short answer: Yes, lift kits are legal in Australia within limits. Most states allow a modest suspension lift, typically up to 50mm, without certification, and NSW, Victoria and Queensland allow up to 75mm of total vehicle lift when tyre size is included. Bigger lifts generally need engineering certification. Rules vary by state and change over time, so confirm with your state authority first.
Australian states base their modification rules on the national code of practice for light vehicle modifications (commonly referenced as VSB14 or NCOP), but each state applies it slightly differently. The common thread is a distinction between a basic lift, which you can generally fit without paperwork, and a larger lift that must be assessed and certified by an approved engineer or signatory under your state scheme.
As an indicative guide, a suspension lift of up to 50mm, achieved with longer springs and matched shock absorbers, is treated as a basic modification in most states, provided the vehicle retains adequate suspension travel and all safety systems keep working as intended. That is why the classic 2 inch lift kit remains the default choice for touring 4WDs across the country. You can browse the range of 2 inch kits from Dobinsons, Tough Dog and Bilstein at 4WD Suspension lift kits.
The table below is an indicative summary only, current at the time of writing. State schemes are updated regularly, definitions differ (some states count tyres and body blocks towards total lift, others treat them separately), and individual vehicles can be assessed differently. Always confirm with your state road authority or an approved certifier before modifying your vehicle.
| State | Indicative lift without certification | Notes |
|---|---|---|
| NSW | Up to 75mm total vehicle lift | Maximum 50mm from suspension plus up to 25mm from larger tyres. Bigger lifts need certification under the NSW scheme. |
| VIC | Up to 75mm total vehicle lift | Similar combined approach to NSW. Larger lifts require approval and certification through the Victorian scheme (VASS). |
| QLD | Up to 75mm total vehicle lift | Up to 50mm suspension plus 25mm tyres without certification. Lifts beyond that, up to defined limits, can be certified under the Queensland code (QCOP). |
| WA | Up to 50mm total combined lift | WA counts suspension, body lift and tyre size together towards one 50mm limit. Anything beyond needs engineering approval. |
| SA | Up to 50mm | Larger lifts require approval through the SA scheme with an appropriate certifier. |
| TAS, NT, ACT | Generally aligned with the national code | Typically around 50mm before certification, but definitions vary. Confirm with the local authority. |
Going beyond the basic allowance does not automatically make a lift illegal; it means the modification must be assessed and certified. Each state runs its own scheme built on the national code, and an approved engineer or signatory will check things like remaining suspension travel, brake hose length, driveline angles, headlight height and steering geometry. On modern 4WDs with electronic stability control, the certifier will also want to see that the system still functions correctly at the new ride height, which is a specific requirement under the national code.
Driving an uncertified over-height vehicle can attract defect notices and fines that run into the thousands of dollars in some states, and it can complicate any insurance claim. If you are planning a bigger build, speak to a certifier in your state before you buy parts, not after.
In most states, yes. A larger tyre lifts the whole vehicle by half the difference in overall diameter, and that figure counts towards the combined limit in states that use a total vehicle lift approach. For example, tyres 50mm larger in diameter raise the vehicle about 25mm, which is exactly how the common 50mm suspension plus 25mm tyre combination arrives at a 75mm total in NSW, Victoria and Queensland. In WA, tyre lift, suspension lift and body lift all draw from the same 50mm allowance, so the maths matters even more. Measure from a consistent reference point and keep your numbers honest.
You should notify your insurer about any suspension modification, even a fully compliant 50mm kit. Insurers ask about modifications when you take out or renew a policy, and an undisclosed modification can cause problems at claim time, even when the lift itself is within the legal allowance. Most insurers have no issue with a compliant, professionally fitted lift kit; some may adjust the premium or note the modification on the policy. A quick phone call when the kit goes on is cheap insurance in itself.
Keep it simple: choose a quality kit at a compliant height for your state, have it fitted and aligned properly, keep your receipts, and confirm anything you are unsure about with your state road authority before the spanners come out. A well-matched 50mm kit with quality springs and shocks delivers most of the real-world benefit of a bigger lift with none of the paperwork. If you are weighing up what a kit will cost all-in, our guide to suspension lift kit cost in Australia breaks down the numbers, and the 4WD suspension buyers guide covers how to match a kit to your vehicle and load.
Ready to lift your 4WD the right way? 4WD Suspension stocks compliant-height lift kits from Dobinsons, Tough Dog, Bilstein and Blackhawk with Australia-wide delivery, and our team can help you pick a kit that suits your vehicle and your state. Browse the range at 4wdsuspension.com.au/liftkits or call us on 1300 120 020.
Indicatively, a 50mm suspension lift sits within the no-certification allowance in most states, which is why 2 inch kits are the most popular option nationally. WA is the tightest, because tyres and body lift count towards the same 50mm total. Rules change, so confirm with your state road authority before fitting.
In most states, yes. A 75mm suspension lift exceeds the basic allowance everywhere, so it generally requires assessment and certification by an approved engineer or signatory under your state scheme. Some states cap what can be certified, so check what is achievable locally before buying parts.
VSB14, also called the National Code of Practice for light vehicle construction and modification, is the national document that state modification schemes are built on. It sets out how lifts, tyres and suspension changes should be assessed, including requirements like retaining suspension travel and keeping electronic stability control functional.
A compliant lift kit is usually straightforward to insure, but you should still notify your insurer so the modification is recorded on your policy. Undisclosed modifications, even legal ones, can complicate claims.
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