> But is it really charity if it is a requirement? I’d call it a tax.
It's not a tax. You can't get your passport revoked if you don't pay tithing. You won't go to jail for tax evasion, either. In fact, probably nothing will happen. You can continue to go to church every Sunday without paying tithing and most congregations would still welcome you with open arms. Ecclesiastical leaders might remind you that tithing requires faith and that you would receive more blessings if you paid your tithe, but as long as said leaders do not profit from said tithes, I don't see a problem with it as there is no conflict of interest.