6 min read · Updated 11 August 2026
Dog microchips and ownership transfer in Ireland
A microchip is only useful when the number, dog and database record match. Treat the scan, certificate and ownership transfer as one connected check.
01
When a puppy must be microchipped
Irish Government guidance says a puppy must be microchipped by 12 weeks of age or before permanently leaving the land or premises where they were born, whichever happens first.
02
What to compare
The chip number should match the dog, certificate, listing and seller record. Ask which approved database holds the registration and confirm the change-of-ownership process before collection.
03
What a chip does not prove
A chip supports identification and traceability. It does not prove parentage, health, good socialisation, a responsible breeder or safe premises. Doggos treats it as one evidence layer, not a welfare badge.
Common questions
Quick answers
Can I check a puppy’s microchip myself?
A vet or other suitable scanner can read the number. The associated personal data is protected, so use the seller’s certificate and the approved database transfer process rather than expecting public owner details.
What if the chip and paperwork do not match?
Do not pay or take the dog. Ask the seller to correct the record and report the mismatch so the listing can be held and checked.
Official sources
Checked when this guide was updated. Rules and registers can change.