For most of them, interest accrues from the date of purchased but is not charged if you pay on time. If you don’t, you owe all the back interest from day one.
Ah, that's the scam. Yet another poor tax, then? The rich get interest on money they already spent, the poor get an illusion of safety followed by even more destitution?
Ah, that's the scam. Yet another poor tax, then? The rich get interest on money they already spent, the poor get an illusion of safety followed by even more destitution?