Forces charity Help for Heroes announced it will not accept anydonations raised by the EDL leader.
EDL leader Tommy Robinson - who told demonstrators on a march yesterday "This is a day of respect for our Armed Forces. They've had their Arab Spring. This is time for the English Spring" - started fundraising following the murder of soldier Lee Rigby.
But a spokesman for Help for Heroes said the Just Giving page set up by him would be closed down and all donations would be refunded.
The charity will check for any further donations from EDL members andsaid it would not accept any donations from the group, or any other politicalparty.
A Help for Heroes spokesman said yesterday: "He's the only one that's come to our attention but tonight we'll be doing a cross-count to make sure that anyone else that's saying they're EDL will not be allowed to fundraise for us.
It's the same for any political party, we don't allow political fundraising. As a charity, we're non-political."
Supporters of the EDL and an anti-fascist group hurled dozens of glass bottles at each other yesterday, as they both held marches through central London. Police officers dressed in riot gear intervened to keep the two groups apart.
A group of around 100 anti-fascists mobbed five or six men who were arriving late to the protest draped in Union Jacks and wearing England football shirts.
Police filmed the anti-EDL protesters as they chanted "fascist scum off our streets" and "follow your leader, kill yourself like Adolf Hitler" before escorting the EDL supporters around Parliament Square.
As the two groups arrived towards Westminster Tube station, the anti-fascists began to run towards the men, forcing the police to set up a cordon to protect them