Well in 83 years and 3 months, and pay $2,090,706,678.18 in interest to be precise, according to my latest NAB credit card statement! That is assuming I pay only the minimum 0.5 % payment on my credit card balance of $20,000. The bank in their infinite generosity has decided to lower my minimum payments from 2.5% to just 0.5%, to show how much they care during these difficult times. Previously, if paying only the minimum repayments of 2.5% over 83 years , the interest charged would have been a measly $103,971.63 according to my previous statements. That my fellow stackers is the brutal power force of compounding interest at work for all to see, if you are only paying 6% per annum back to the bank and they are charging you 21% interest. It would be interesting to see what the monthly repayments would go up to over the years if only the half a percent was being payed back for the term of the loan, it would be in the millions at some stage I would assume. But fear not stackers, the bankers have not got me by the short and curlies, it is actually the other way around. The NAB offered me a 0% balance transfer in Feb for 18 months, so I went out and splurged out on the shiny metals on my other credit cards and then transferred the amounts to my two NAB credit cards. When the 18 months is up, I will transfer the amounts back to the other credit cards, or in a worst case scenario if the other banks are not offering low or no interest balance transfers, I will have to sell some physical to pay off the debts. I have been doing this for the past 10 years, and will continue to do so for as long as it is available. Happy stacking everyone.