· By Laura Rust
Microchips - What You Need To Know
Most of us think microchipping is done. You get your pet to the vet, they pop a chip under the skin, and you're set. But here's the thing: a microchip isn't a tracker. It's a filing reference. And it only works if someone finds your pet, gets them to a vet, scans them, looks up the correct registry, and your contact details are still current.
That's four separate things that all have to go right. And the system behind it is more fragmented than most pet owners realise.
How It's Supposed to Work
Let's walk through what actually happens when someone finds your lost dog.
A good Samaritan picks up your dog, recognises they're someone's pet, and either takes them to the nearest vet or posts in a lost-pet Facebook group. If they get to a vet, the vet scans the microchip and gets a number. That number is your filing reference.
But which registry is your pet filed under? Australia doesn't have one national microchip database. We have multiple registries, and the vet has to know which one to check.
If you're lucky, your pet is registered on Petaddress.com.au, which is searchable across multiple registries. But that's not guaranteed, as your details might be on a state-based registry instead. New South Wales and South Australia run their own systems whilst Victoria, Queensland, and other states have their own arrangements.
And even then, your contact details have to still be current. Did you move house and forget to update your microchip details? Did you change your phone number? Did your email bounce because you upgraded providers? Your pet is scanned, the number is there, but nobody can reach you.
The Registry That Disappeared
Here's a real problem we discovered: HomeSafeID, which held microchip records for many Australian pets, shut down in February 2025. If your pet's details were only registered there, and you weren't paying attention, those records essentially vanished. Victoria transferred some records to Central Animal Records, but most other states have no transfer mechanism. For those pets, the registry lookup is a dead end.
This isn't small-scale. We're talking about thousands of pets whose identification just became harder to access.
Why This Matters
I know what you're thinking: "My vet would figure it out, or I'd just post on Facebook." Maybe. But think about the pets whose owners don't have a strong social media presence, or whose Facebook posts don't reach the right groups, or whose finders don't know to post at all.
Here's what actually happens to many of those pets: they end up at council pounds and animal shelters. The shelter staff do their best to trace the owner, but if the microchip details are outdated or the registry lookup fails, reunification is nearly impossible. Those pets sit in kennels or cages, taking up beds that could be used for animals without owners at all - genuinely homeless animals who need shelter space.
The cost isn't just emotional. Shelters and pounds are already under pressure. Every day a pet occupies a bed is a day that a genuinely stray animal can't be helped.
What You Can Do Right Now
Take fifteen minutes this week and do this:
- Visit petaddress.com.au. Search your pet's microchip number. Does it come up? Is the information correct?
- If it doesn't come up, or the details are wrong, you need to know which registry your pet is on. Contact your vet — they have your microchip number on file and can tell you which database holds your details.
- Update everything. Current phone number, current email, current address. Make sure whoever answers that call can actually reach you if your pet goes missing.
- If you're in NSW or SA, check your state registry separately. These systems don't always sync with petaddress.com.au.
- Tell someone. If a family member or trusted friend has a spare key to your place, let them know where your microchip details are kept and who to contact if you're unreachable.
This takes less than twenty minutes. It's the highest-value thing you can do for your pet this month.
A Better System
Ideally? We'd have one national registry, mandatory updates, and accessible data. We're not there yet. But what if your pet's contact details — address, phone number, owner name — lived on something that didn't require a vet lookup or a registry search?
What if the person who found your dog could reach you in seconds, without going through the microchip system at all?
That's the future I'm building toward with PetFindr. Not to replace microchips, but to sit alongside them and close the gap when the system has too many moving parts.
For now, though, take those fifteen minutes. Update your microchip details. Make sure the chain works. Because your pet's reunion might depend on it.