The British Olympic Association (BOA) is to take its dispute with the London Organising Committee (LOCOG) to the Court of Arbitration for Sport.
The BOA is due to receive 20 percent of any surplus sponsorship and ticket money after the Games, but is now fighting for a larger cut, claiming the cost of staging the Paralympics should not be taken into account when calculating the remaining funds.
BOA believes the cost of the Paralympics and Olympics should be judged together.
Darryl Seibel, a spokesperson for the association said: ‘We have filed a formal petition seeking to resolve this quickly and equitably’.
Lord Coe, chairman of LOCOG, added: ‘This has no impact at all on the ability of Team GB or Paralympic GB to be competing. You know we have got great momentum across the project and the relationships are very strong and this will be resolved’.