Bible scholars tell us that the total tithes required by God's law are somewhere between 13 and 16 percent. Federal taxes have also steadily increased. The end does not seem near. Sadly, tax and spend seems to be the only thing our governments can do well. The latter is a neat trick in which the government sells itself its own debt, in the form of bonds.
Taxation is an exercise of power, a manifestation of sovereignty.
God's sovereignty is total. When a people reject God's principles of stewardship and money they invite His chastening hand. When God's stewards fail to render unto God His required tithes, they invite Caesar to assume ungodly power over property and responsibilities which God actually assigned to His people. The rise of caretaker civil governments and excessive levels of taxation are signs of God's judgement on an apostate people who fail to live according to God's law. It is noteworthy that the tithe contributed to the social programs of the nation of Israel.