How closing credit cards affects your credit score
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If there are old merchant cards and other credit cards taking up space in your wallet, you may be tempted to close those accounts, since you don't use them anymore. However, that would be a bad move for your credit score. Even though you're not using them, those old credit cards are helping your credit score in a number of ways.

To better illustrate how and why those unused credit cards help, it's good to know how your credit score is calculated. Here's the breakdown on how credit scores are calculated: