THOUSANDS of dog owners could be fined from today for failing to microchip their pets.

The Department for Food and Rural Affairs (Defra) revealed yesterday that more than one million dogs had not yet been microchipped.

From today, owners must make sure their pet is fitted with a microchip by the time it is eight weeks old or face a fine of up to £500.

If local authorities come across a dog without a microchip, owners will have up to 21 days to comply with the law, or be fined.

Defra’s animal welfare minister George Eustice said: “We are a nation of dog lovers and we want to make sure they stay safe.

“Microchipping our dogs will not only reunite people with their lost or stolen pets, but also help to tackle the growing problem of strays roaming the streets and relieve the burden placed on animal charities and local authorities.”

The compulsory procedure ranges from £10 to £30, with many charities and animal shelters offering to carry it out for free.

To find out about free microchipping sessions with Dogs Trust or Blue Cross, visit chipmy dog.org.uk/update-your-dogs-chip or bluecross.org.uk.