The money flow of state and churches is distinct at all levels of the procedures. The church tax is not meant to be a way for the state to directly support churches, but since expenses for church tax are fully deductible (as are voluntary expenses for the Church, for charity or a bundle of other privileged aims) in fact such support occurs on a somewhat large scale. The effort of collecting itself, done by the State, is entirely paid for by the Churches with a part of the tax income.