A Supreme Court decision in the late 70s allowed maximum credit card rates to be charged according to the laws of the state where the lender's credit decisions were made. In short, if a CC company was based in a state with no usury laws, the sky was the limit.CNF2002 wrote: I heard recently about a top rate that anyone can charge interest on a loan of any kind. But credit cards found a loophole allowing them to charge 20-30%, by housing their offices in some specific cities that exempt the law. Something like that
The gist of it was that I can be charged 20% interest by my credit card company, but if I give a loan to my neighbor its illegal for me to charge him 20%.
Citibank caught on to this and persuaded South Dakota to get rid of their usury laws, in return for basing their credit card operations in their state. Other banks and other states (namely Delaware) caught on to this trend, and unlimited credit card interest was born.