Tabcorp chairwoman Paula Dwyer says the wagering giant is in talks with the Coalition about banning offshore, unregulated online bookmakers from taking bets from Australians.

The flow of money to foreign bookies is posing a risk to the integrity of sport and siphoning revenue that would otherwise be returned to the community and racing industry, Ms Dwyer told shareholders at the $3 billion company's annual meeting on Tuesday.

"There are estimates that as much as 14 per cent of betting by Australian-based customers is conducted with operators who are not licensed in Australia”: Tabcorp chairwoman Paula Dwyer. Credit:Dominic Lorrimer

Ms Dwyer pointed to France, where the government in 2010 banned overseas operators from taking bets from French citizens. Similar regulations are being enacted in Britain this week, she said.

"Tabcorp's view is that a similarly powerful response is needed in Australia," Ms Dwyer said. "While it is difficult to measure precisely, there are estimates that as much as 14 per cent of betting by Australian-based customers is conducted with operators who are not licensed in Australia."