The Scottish Council for Voluntary Organisations (SCVO) is calling for urgent reforms in charity law following the Third Age Group scandal.
SCVO chief executive Martin Sime said: "The longer we delay the longer bad apples like the Third Age Group will come up."
The council wants to implement the recommendations of the McFadden Commission, an official body that met last May to draft reforms in the charity sector.
The commission stated that voluntary organisations should lose their charitable status if more than one-third of their trustees are appointed by the Government.
Third Age Group came under scrutiny when Scotland's First Minister Henry McLeish was forced to resign after failing to declare that he had sub-let his constituency office to six organisations, including the charity, which provided services to elderly people.
Council officials in Fife may also face disciplinary action following an enquiry into grants to the charity. Donations totalling £40,000 were given two months after it officially closed.