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Ask for credit decrease
Aside from an annual fee, if any, the card issuer makes money 2 ways, the transaction fee, about 1.5%-2% charged to the merchant, and interest from you if you leave a balance month to month. Obviously, the bank has some cost in processing statements and maintaining your account. If up front you are saying you will not have any chance of providing a certain profit level, they may have no interest in your business. (As you updated.) Other card issuers (almost surely with fees) might. Put the cards on ice. A bag of water in freezer. Don't be so hasty that you ding your report this way. By trashing the history as well as utilization, you may impact your score enough to do some harm if you actually need credit in the near future. I know this is a game with the credit agencies, a "how good a borrower am I" game, but it can really impact your bottom line if you don't play along.  In reply to Michael's comment 1/5/15, if I have one card and am budgeted for $1000/mo in spending, in order to keep utilization down to less than 20%, I'd need a line of more than $5000. Even if I ignore utilization, my January spending is $1000, but the bill is cut on the 31st and not due till Feb 25th. So a line of nearly $2000 is required unless you wish to make mid cycle payments on an ongoing basis.