Male Chihuahua puppy 6 months old in Dublin

Legally, puppies need to be at least 8 weeks old and completely weaned prior to when they can be sold and leave their mothers. Puppies can be advertised for sale prior to the 8 weeks, however not sold. Nearer to 12 weeks is suggested for separating the puppie(s) from its mom.

This ad shows that the date of birth is November 19, 2025, by adding another 8 weeks to the D.O.B means the earliest legal date of sale is on Wednesday, January 14, 2026.

This can be seen in the Animal Health and Welfare (Sale or Supply of Pet Animals) Regulations Act of 2019 Section 3.

It is the law now, that if you supply or sell 6 or more dogs in a calendar year, then you are now required by law to immediately register with the Department of Agriculture so as to become a legitimate seller of pets/dogs!

Registered sellers are now legally required to now store records of who and when they sell dogs/pups to, along with other things!

Your Registered seller ID is now required to be included in all your ads, and this includes ads that are online and offline. This 6 dogs count will also include gifts of dogs or pups to family members!

How to become a Registered Seller