Battersea Dogs & Cats Home has revealed that 72 per cent of the 2,715 dogs it took in last year were not microchipped.
As a result, the charity has called on the government to reform laws regarding dogs because of the number of animals it takes in as strays.
If microchipping were compulsory, the charity could reunite more lost animals with their owners.
Claire Horton, chief executive of Battersea, said: "We've been waiting far too long for the Government to reform the current failed dog laws.
"Battersea takes in 14 dogs every single day and it's a huge concern to us when we are powerless to trace the irresponsible owners who dump their dogs or simply let them run off."
She added that while the charity will continue to take in these animals, they need to know that the government is doing its part in solving the stray dog crisis currently facing the country.