Do I need to Microchip my Dog and/or Cat?


A microchip is a permanent form of pet identification that is inserted under the skin.



Microchipping is a legal requirement NSW. Each microchip has a unique, electronic identification number that can be detected by a scanner. It is the size of a rice grain and is implanted under the skin between the shoulder blades of your pet's back. A microchip is a permanent form of pet identification unlike the tag and/or collar that can become lost or damaged. It's a good idea for your pet to have a microchip, collar and I.D. tag. In fact it is illegal to sell a puppy without a microchip so when you have purchased a new puppy (or kitten), ensure that it has been microchipped AND the previous owner/breeder has transferred your new fur baby to you.  It is the breeder's legal obligation to do so. Having your pet microchipped and registry kept up to date will hasten your pet's return if lost.

Microchip procedure

The microchipping procedure is very quick and safe. As with all needles, a little discomfort, but it is short-lived. It is not a surgical procedure, and it does not require general anaesthesia. It is recommended that the pet is microchipped prior to purchase or adoption. If your pet has not been microchipped, Mittagong Veterinary Hospital will be able to perform the procedure. Only authorized microchip implanters are permitted to perform the procedure.

Microchip registry database

Your contact details are kept on a microchip registry database so that if your pet is lost, you can be contacted. It is very important that you notify the registry if your contact details change or if ownership should change.

Current microchip registry database:

  1. Australasian Animal Registry
  2. Central Animal Records
  3. HomeSafeID
  4. NSW Companion Animal Registry
  5. Petsafe Pet Register

If you are unsure where your pet was microchipped, and you need to contact them, have your pet scanned and check the microchip number on the Petaddress website.

Microchip side effects

Microchip side effects are very rare. The most common reaction is the movement of the microchip from the original implantation site. Other problems include hair loss, infection, and swelling on extremely rare occasions. Microchip failure Although very rare, microchips can be undetected when the pet is scanned.

Common causes (Rare) of undetected microchips:

  1. There is no microchip
  2. Microchip failure
  3. Scanner failure Improper scanning technique Pet-related factors such as not sitting still to be scanned, matted hair, fat deposits, metal collar

NSW Local Government Website Is the place to go for all details of your legal obligations.

Remember you can book online or phone to book an appointment for microchipping at Mittagong Veterinary Hospital.