"British racing's economic impact was over £3.7billion last year and over five years has generated over £1.5bn in tax.
"Our sport is of enormous value to Britain and racing must ensure our standing and importance within Britain can be maintained."
The report, unveiled at a press conference in London, shows that Britain was second only to Japan in the total amount bet on racing last year, with £12.1bn wagered compared to just under £14bn in Japan.
But the return to Japanese racing was 5.3 per cent of the amount wagered compared to the one per cent that British racing receives.
However, bookmakers remain non-plussed by the findings. William Hill spokesman David Hood said: "There is nothing new in the report.
"Racing needs to stop holding out the begging bowl just because they can't come up with any solutions to replacing the Levy."