That is interesting, lastmanstanding. Here is IBSA’s basis for remaining a charity, according to their own financial statements:
Public benefit
In addition to being a religious entity, the Trustees confirm that they have taken into consideration Charity Commission guidance on public benefit in exercising their powers and duties. This is amply demonstrated in this report and in particular the following:
1.Bible literature we have supplied without charge to congregations ofJehovah's Witnesses in the UK, has been distributed gratis, by those congregations, to interested members ofthe public in their local communities, in the following quantities: 14,836,474 copies of The Watchtower and Awake! and 23,805,463 other publications including, Bibles and Bible study aids, brochures, tracts and invitations to meetings.
2. Our conventions for Bible education are widely advertised by personal invitations delivered by individual Jehovah's Witnesses to the public nationwide. Admission is free.
Hardly any better than Scientology.