New Pet Microchipping Laws in Australia (2025 Update)

Is your pet microchipped? In most of Australia, it's not just a good idea — it's the law.

Whether you're a new pet owner or you've had dogs and cats for years, understanding Australia's microchipping requirements is essential. Laws vary from state to state, and keeping up with the changes can feel overwhelming. This guide breaks it all down so you know exactly where you stand.

Why Microchipping Matters

A microchip is a tiny device — roughly the size of a grain of rice — implanted just beneath the skin at the back of your pet's neck. Each chip carries a unique identification number linked to a national database that stores your contact details. If your pet ever gets lost or stolen, vets, shelters, and council rangers can scan the chip and reunite them with you quickly.

But microchipping isn't just a smart precaution. In most Australian states and territories, it's a legal obligation.

Australia's Microchipping Laws by State & Territory

New South Wales

Microchipping is mandatory under the Companion Animals Act 1998. Both cats and dogs must be microchipped before they are sold or transferred, and no later than 12 weeks of age. Since 1 July 2019, anyone advertising a pet for sale or rehoming must include the microchip number or an approved identification number in the listing.

Victoria

Under the Domestic Animals Act 1994, microchipping is compulsory as a condition of council registration, which kicks in when your pet turns 3 months old. If you're a domestic animal business or breeder, you must also microchip before sale or transfer. Advertisements for dogs and cats must display the microchip number or a breeder registration number, and all sellers must be enrolled in Victoria's Pet Exchange Register.

Queensland

The Animal Management (Cats and Dogs) Act 2008 requires all cats and dogs to be microchipped before they reach 12 weeks of age. The chip must also be in place before any sale or transfer occurs.

South Australia

Since 1 July 2018, microchipping cats and dogs has been compulsory under the Dog and Cat Management Act 1995. Pets must be chipped before sale, and in most circumstances before reaching 12 weeks of age.

Western Australia

WA has a phased and comprehensive approach. All dogs must be microchipped — either at first registration, upon a change of ownership, or by a set deadline. For cats, the Cat Act 2011 requires microchipping before transfer or sale, and by 6 months of age.

Tasmania

The Dog Control Act 2000 requires dogs to be microchipped by 6 months of age. For cats, those over four months old must be microchipped. If a kitten is sold or rehomed, they must be chipped regardless of age — unless a vet has certified that the procedure would be harmful to the animal's health.

Australian Capital Territory

Under the Domestic Animals Act 2000, both cats and dogs must be microchipped before sale or transfer, and by 12 weeks of age.

Northern Territory

The NT is the only jurisdiction where microchipping is not yet compulsory at a territory level. However, local councils — including the City of Darwin — may have their own requirements. If you're in the NT, it's worth checking with your local council to find out what applies in your area.

What Happens If You Don't Comply?

Failing to microchip your pet can result in significant fines depending on your state. Beyond the legal consequences, an unchipped pet who goes missing is far less likely to make it home. Shelters and councils routinely scan animals when they arrive — without a chip, the only way to trace ownership is through physical tags, which can be lost or removed.

Microchipping vs. ID Tags: Do You Need Both?

Absolutely. While microchipping is the gold standard for permanent identification, it requires a scanner to read. An ID tag on your pet's collar is the fastest way for anyone — a neighbour, a good samaritan, or a ranger — to contact you on the spot. Think of microchipping as the backup and your ID tag as the first line of defence.

Keep Your Details Up to Date

A microchip is only as useful as the information connected to it. If you move house, change your phone number, or transfer ownership of your pet, you must update the details in the relevant state database. An outdated record means a lost pet may not find its way back to you, even with a chip in place.

Quick Reference: Microchipping Requirements by State

State/Territory	Mandatory?	By What Age
NSW	Yes	12 weeks
VIC	Yes	3 months (at registration)
QLD	Yes	12 weeks
SA	Yes	12 weeks
WA	Yes	Dogs: 3 months / Cats: 6 months
TAS	Yes	Dogs: 6 months / Cats: 4 months
ACT	Yes	12 weeks
NT	No (council dependent)	Check locally

Information in this article is based on current legislation at the time of publication. Laws can change, so always check with your local council or state authority for the most up-to-date requirements in your area.

Ready to make sure your pet is fully identified? A microchip records the essentials — but a quality ID tag keeps your pet safe every single day. Browse our range of personalised pet ID tags at Paw ID.