The truth about your credit score and multiple credit cards

I'm going to tell you something that might be surprising: having multiple credit cards hasn't hurt my credit. In fact, it's helped. My credit score as of June 2026? An 825.

I only know the exact number because my player 2 and I compete over who has the better score. (I get annoyed when his is higher, considering I'm the points expert and all.)

Here's the thing: opening multiple credit cards hasn't hurt my credit. It's actually improved it. And once you understand why, you'll stop white-knuckling every new application too.

First, the concept that changes everything: credit utilization

Think of your total credit limit as a big bucket. Utilization is just the percentage of that bucket you're using at any given moment. If your cards add up to $50,000 in limits and you're carrying $5,000 in balances, you're at 10% utilization. It's one of the heaviest-weighted pieces of your score, second only to whether you pay on time.

So the bigger the bucket, the less impact your balances have. Every time I open a new card, that card comes with its own credit limit, which gets added to my bucket. More cards = bigger bucket = lower utilization ratio = better score.

The number to aim for? Under 30% is the standard advice, but under 10% is where the real magic happens. With ten cards' worth of limits, I'd have to spend a genuinely impressive amount to even get close.

"But doesn't every application ding my score?"

This is the fear that stops most people, so let's just name it. Yes, applying for a new card usually triggers a hard inquiry, and yes, that can knock a few points off. Emphasis on a few, and on temporarily.

A hard inquiry typically costs you around five points or fewer, and it stops affecting your score after about a year. It falls off your report entirely after two. Compare that to the long-term gain from a bigger total credit limit and another account aging on your report, and the math tilts in your favor pretty fast.

What about the age of my accounts?

Fair question. This is the one real tradeoff. Part of your score looks at the average age of your accounts, and opening a new card does lower that average a little.

But here's what people miss: you don't close the old cards. They keep aging right alongside the new ones. The card I've had for fifteen years is still sitting on my report doing its quiet, score-boosting work. As long as you keep your oldest cards open, even if you barely touch them, the new ones become a smaller and smaller drag over time.

So when do multiple credit cards hurt you?

I'd be doing you a disservice if I pretended there's no risk. There is.

The danger was never the number of cards. It's carrying balances you can't pay off. More cards means more available credit, and for a lot of people, more available credit means more temptation to spend money they don't actually have. That's where the interest charges and the real score damage come from.

Which brings me to the other piece: I always pay off my balance in full. No debt, no interest, no problem. That one habit is what makes everything else work. If you can't say the same yet, that's the thing to fix before you open card number two.

The bottom line

So why were we all taught that multiple credit cards are dangerous? Probably because for someone carrying debt, they genuinely are. But if you're strategic about which cards you open and disciplined about paying them off, you'll only see that score climb.

I'm living proof, ten cards and an 825. And yes, I will be mentioning that to player 2 again tonight.

Want help building your own points strategy, without wrecking your credit in the process?