The short answer
A microchip is a tiny radio-frequency ID chip, about the size of a grain of rice, placed under your pet's skin. It is not a GPS tracker. It holds a single ID number that links to your contact details in a registry, so a vet or shelter can scan a found pet and reach you. Calgary does not require microchipping (it requires a licence instead), but a chip is the backbone of getting a lost pet home, and a chipped pet is exempt from wearing its City tag. The one rule that matters: the chip is useless unless you register it and keep your phone number and address current.
Microchipping is one of those things almost every Calgary pet owner has heard of and very few fully understand. People think it is a tracker. They forget to register it. They move and never update it. Done right, it is the single most reliable way to get a lost dog or cat back, and it costs less than a tank of gas. Here is how it actually works.
What a Microchip Is (and Isn't)
A microchip is a passive RFID transponder roughly the size of a grain of rice, implanted just under the skin between the shoulder blades. “Passive” is the key word: it has no battery and no power of its own. It sits inert until a scanner's radio waves pass over it, which is what makes it activate and transmit its number. That is the entire job.
It is not a GPS tracker. The American Veterinary Medical Association states plainly that a microchip “cannot track your animal if it gets lost.” It has no location, no signal you can follow, and no app. If you want to see where your dog is in real time, that is a GPS collar tag, a separate device you buy on top of the chip.
The number on the chip is not your information. It is a key. When a clinic scans a found pet, the scanner shows a 15-digit number, and that number is looked up in a registry database that holds your name and contact details. Modern chips follow an international standard (ISO 11784/11785, operating at 134.2 kHz), and universal scanners, the kind every vet and shelter uses, can read all the common chip frequencies. So a chip implanted in Calgary still reads if your pet turns up in another province or country.
Implanting it is quick. The AVMA compares it to a routine injection: a hypodermic needle, no surgery, no anesthesia required. Many owners have it done while their pet is already under for a spay or neuter, but it does not need sedation on its own.
What It Costs in Calgary
Pricing depends entirely on where you go, so treat these as general guidance and confirm the current number with your own vet or a shelter clinic. As a rough Canadian range, a regular veterinary clinic often charges somewhere around fifty to a hundred dollars for the chip and implantation, while humane society and low-cost community clinics tend to be cheaper. The most economical route is usually to have it done at the same time as a spay or neuter, when your pet is already booked in.
Bundle it. Calgary Humane Society runs community and spay-neuter clinics, and the cheapest microchipping is almost always the one added on during an appointment your pet is already having. Call CHS at 403-205-4455 to ask what microchipping costs through their programs, or ask your vet to include it at the next visit. Our guide to spay and neuter in Calgary covers the low-cost clinics where chipping is often offered alongside surgery.
Getting Your Pet Chipped
Any veterinary clinic can microchip a pet, usually as a walk-in-length appointment. If your dog or cat is booked for a spay, neuter, or dental, ask to add it on then. And if you have just adopted, check first, because there is a good chance the work is already done.
Most Calgary rescues and shelters microchip pets before they go home. If you adopted recently, dig out your paperwork and look for a chip number. If it is there, you do not need a new chip. What you almost certainly do need is to take over the registration, which is the part covered next, and the part most new owners miss.
Registering the Chip (the step people skip)
Here is the failure point for the majority of microchipped pets that never make it home: the chip was implanted but never registered to a reachable owner, or it is still registered to whoever implanted it. A chip number with no current owner record behind it is just a number. The AVMA found that microchipped lost dogs and cats were returned to their owners at more than double the rate of strays overall, but only when the registration was complete and correct.
Registration means putting the chip number, plus your name and contact details, into a registry database. A few options available to Calgary owners:
24Petwatch (24Pet Registry): Run by Pethealth, an Ontario company, and one of North America's largest registries. Registering and updating your information is free. A common default for chips implanted at Canadian clinics and shelters.
CanadaChip Recovery (Canadian Kennel Club): The CKC's national recovery database. Enrolling a chip the CKC supplied is free; enrolling a chip from elsewhere is a one-time lifetime fee (around ten dollars plus tax). A solid Canadian-run option.
HomeAgain: A large registry owned by Merck Animal Health. It is US-based but available to Canadian owners, with a lifetime basic registration and optional paid memberships that add recovery extras. If your chip is a HomeAgain chip, this is where it lives.
You do not get to pick freely: the chip is usually tied to one registry by whoever implanted it. The important move is to find out which registry holds your pet's chip and make sure the contact details on file are yours and current.
Keeping It Current (this is the whole point)
A registration is a snapshot of your contact details on the day it was entered. People move, change phone numbers, and adopt pets from previous owners, and the registry does not update itself. An out-of-date record is the quiet reason a chipped pet ends up unclaimed. Update the registry whenever you:
- Move or change your phone number or email.
- Adopt a pet (transfer the chip out of the rescue's or previous owner's name into yours).
- Rehome a pet to a new family (hand the registration over to them).
Not sure which registry your chip is in? Enter the chip number into the free AAHA Universal Pet Microchip Lookup Tool. It will not show owner details, but it tells you which registry the chip is enrolled in, so you know exactly who to call to update your information. It works for chips registered with participating Canadian and North American registries.
Settling this in your first week with a new pet is the move. Our guides to the first week with a rescue dog and the first week with a rescue cat put microchip transfer right alongside the vet visit and the City licence, because the nervous early days are exactly when a new pet is most likely to bolt.
If Your Pet Goes Missing in Calgary
A microchip is what turns a found pet into a returned pet. Here is how the chain works in Calgary:
Report it to City of Calgary Animal Services. If your cat or dog goes missing within Calgary, call 311. Animal Services scans every impounded stray, and through its Pet Drive Home Program a peace officer can often read the tag or chip and drive a licensed, identified pet straight home, no shelter stay required.
Calgary Humane Society handles animals found outside city limits, and exotics found anywhere in the region. They are the other place a found pet from the Calgary area may land.
Any vet clinic with a universal scanner can read a found pet's chip. The number is then run through the AAHA lookup tool to find the registry, and the registry is contacted to reach you. This is exactly why the registration has to be current.
Two forms of ID working together is the goal: a City licence tag for the fast local return, and a microchip as the permanent backup that travels with your pet no matter how far it goes or how long it is gone.
Microchip vs Licence vs Tag
These three get mixed up constantly. They are different things doing different jobs:
The trap worth naming: a microchip exempts your pet from wearing the tag, but it does not exempt you from buying the licence. The licence is still mandatory and still carries the annual fee. The full breakdown of who needs a licence and what it costs is in our Calgary pet licensing guide.
Just adopted, or about to?
Browse adoptable rescue dogs and cats across Calgary, then put microchip registration and the City licence on your first-week checklist.
Frequently Asked Questions
Is a pet microchip a GPS tracker?
No, and this is the most common misunderstanding. A microchip is a passive RFID chip with no battery and no location feature. The American Veterinary Medical Association is explicit that a microchip cannot track your animal if it gets lost. It only does one thing: when a scanner passes over it, it transmits an ID number. That number links to your contact details in a registry. If you want live location tracking, you need a separate GPS collar tag, which is a different product entirely.
Is microchipping mandatory in Calgary?
No. Calgary does not require microchipping for dogs or cats. What the City does require, under the Responsible Pet Ownership Bylaw, is a licence for every cat and dog three months and older. A microchip is optional, but it carries one bylaw benefit: a dog or cat with a microchip or legible tattoo is exempt from wearing its physical licence tag. You still owe the annual licence fee either way.
How much does it cost to microchip a pet in Calgary?
Pricing varies by where you go, so confirm the current cost with your own vet or a shelter clinic before booking. As a general Canadian guide, a regular veterinary clinic often charges somewhere in the range of fifty to a hundred dollars, while humane society and low-cost community clinics are usually cheaper, and the chip is frequently bundled in at a spay or neuter appointment. Calgary Humane Society runs community and spay-neuter clinics; call them at 403-205-4455 to ask what microchipping costs through their programs.
Does my rescue or adopted pet already have a microchip?
Very often yes. Most Calgary rescues and shelters microchip pets before adoption. The catch is the registration. The chip may still be registered to the rescue, the shelter, or a previous owner rather than to you. Ask the adoption group for the chip number and the registry it is enrolled in, then confirm the record has been transferred into your name. A chip registered to someone else sends a found pet back to the wrong contact.
How do I update or transfer my pet’s microchip information?
Contact the registry the chip is enrolled in and update your name, address, and phone. With most Canadian registries this is free to do online or by phone. If you are not sure which registry holds your pet’s chip, enter the chip number into the free AAHA Universal Pet Microchip Lookup Tool at petmicrochiplookup.org. It does not show owner details, but it tells you which registry the chip is in so you know who to contact. Update the record any time you move, change your number, or take on a pet through adoption or rehoming.
I found a pet with a microchip. How do I find the owner?
Take the animal to any veterinary clinic, the Calgary Humane Society, or City of Calgary Animal Services. Anyone with a universal scanner can read the chip number. From there, the number is entered into the AAHA Universal Pet Microchip Lookup Tool to find which registry it belongs to, and that registry is contacted to reach the owner. Within Calgary, call 311 to report a found cat or dog so Animal Services can help, including through the Pet Drive Home Program.
Does microchipping hurt, and is it safe?
It is quick and considered safe. The AVMA describes implantation as no more involved than a routine injection, given by hypodermic needle with no surgery and no anesthesia required, usually between the shoulder blades. Many owners have it done during a spay or neuter so the pet is already under, but it does not require sedation on its own.