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130,000 MR points
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Uncategorized Oct 23, 2025
Reviews Jun 26, 2025
Deals Jun 18, 2025
Thank you for posting. Some technical questions for you.
1. Credit utilization also include line of credits or just credit cards? The utilization rate calculated based on the total credit limit and balance of all credit products I have or every single credit product?
2. I heard going over 20% utilization rate is bad but also having 0% rate is worse. Is it true? I have some old credit card that never use but keep to control length of credit history.
Thanks!
Having a high utilization on one credit card can affect your score, even if the overall utilization is low. So it’s best to ensure you’re maintaining a reasonable utilization on all cards. Nonetheless, it’s also not the biggest deal in the world: if you have high utilization one month and bring it back down the next, your credit score will recover.
Having 0% utilization doesn’t help your credit score at all since it doesn’t demonstrate responsible credit usage, but I don’t believe it actively hurts you either. I think it’s fine to leave an old credit card open with zero balance, but it’s also good to sprinkle on a few charges every now and then if you can to let it contribute to the overall credit health.