One should not entertain the mistaken idea that 'charged' expenditures are never voted. If they are so specified in the Constitution, they were voted for, for all time to come until varied by competent legislation, when the Constitution was voted to be the law of the land. If so designated by a Legislature, they got their votes when the Legislature designated them accordingly. The same Legislature can revert them back to the status of 'voted' expenditure. But this entire process must, at some stage, pass through the procedure laid down for 'Money Bills'.
Confusion prevails in taxing laws, too.
Here again, the British practice will be helpful in understanding the concept of a tax authority, in whom it vests and how it is applied. The British Parliament is a sovereign body and, therefore, is not bound by any preconceived ideas called conventions or by any law made by itself. Yet, certain rules which fall under both categories, one of which was earlier discussed, are very religiously adhered to in Britain. Taxation provides a curious example. Thus the usage of collecting a tax in advance of its authorisation by Parliament became part of the law.