What Hurts Your Credit Score the Most?

Why Your Credit Score Still Feels Like a Mystery

You can be earning more than ever and still feel stuck because your credit score is quietly influencing what you can (and can’t) do financially. It’s not just a random number, it’s a snapshot that helps lenders decide how risky it is to lend you money.

If you’ve been wondering what hurts your credit score the most, the good news is that the score is built from a few specific categories. Once you know what those categories are, you’ll know exactly where to focus first so you’re not guessing.

What a Credit Score Is (and Why Lenders Care)

A credit score is simply a number that helps lenders understand your credit risk. In other words: if you borrow money, how likely are you to pay it back on time?

That number affects two big decisions lenders make:

• Whether they’ll approve you at all

• What interest rate they’ll charge you

Your score generally falls within a range of 300 to 850. The higher your number, the better. A score in the 740–799 range is considered very good, and 800+ is excellent. When your score is higher, lenders see you as less risky, which usually means you qualify for a lower interest rate (and you keep more of your money out of interest payments).

What Hurts Your Credit Score the Most: The 5 Factors That Matter

Your credit score isn’t based on one thing. It’s made up of multiple criteria, each with a different “weight.” If you want to improve your score efficiently, you’ll get the fastest traction by paying attention to the biggest categories first.

1) Payment History (35%): Late Payments Do the Biggest Damage

Payment history is the largest part of your score at 35%. That’s why it’s often the first place to look when you’re thinking about what hurts your credit score the most.

This category is about one core habit: paying your bills on time. And it doesn’t mean you have to pay off your entire credit card balance every month to protect your score. What matters is making at least the minimum payment by the due date.

Late payments often happen for a simple reason, you forgot. Even if the money is in your account, a missed due date can trigger late fees and hurt your credit.

A practical fix is to automate your payments so you don’t rely on memory. You can usually set this up through your lender or online banking. You can typically choose whether you want to auto-pay: the minimum payment, the full statement balance, or a custom amount and what you want your payment date to be.

It takes a few minutes to set up, but it can prevent a lot of stress later.

2) Amount Owed (30%): High Credit Utilization Can Drag Your Score Down

The next biggest factor is amount owed, making up 30% of your score.

This looks at how much you owe compared to your available credit, often described as your credit utilization rate. For example, if you have: a $5,000 balance on a $10,000 limit that’s 50% utilization on that card.

Your score considers your utilization across accounts by adding up your balances and your total available credit, then calculating one percentage.

If you’re trying to reach the top credit tiers, aiming for around 10% utilization is a strong target. But even if you’re at 30% or below, you’re doing well.

3) Length of Credit History (15%): Time Helps, but You Can’t Rush It

Length of credit history makes up 15% of your score. Generally, the longer your history shows on-time repayment, the more trustworthy you look to lenders.

This is one area you can’t “fix” instantly. It improves over time, which is why it helps to start building credit as early as possible.

Even accounts you’ve paid off (like an old car loan) can still help you here. Paid-off loans can remain on your credit report for about 10 years, contributing to your overall history.

4) Credit Mix (10%): Variety Helps, But Don’t Open Accounts Just for This

Credit mix accounts for 10% of your score. It looks at what types of debt you’ve managed, such as:

• revolving credit (like credit cards)

• term loans (like student loans, a mortgage, or a car payment)

The idea is to show you can handle different kinds of borrowing, short-term revolving usage and long-term consistency over years.

Because this is only 10%, it’s not worth going overboard opening accounts just to create a “mix.” It tends to happen naturally as you move through different seasons of life.

5) New Credit (10%): Too Many Applications at Once Can Raise Red Flags

The final factor is new credit, also 10% of your score.

Each time you apply for credit, your credit report is pulled, and that creates a small ding on your score. One or two inquiries usually won’t be a big deal, and your score can rebound. But a lot of inquiries in a short period can start to matter.

From a lender’s perspective, multiple applications at once can look like you suddenly need access to a lot of credit, potentially signaling a cash flow issue.

One important exception: if you’re rate-shopping for a major purchase like a house or car, you can (and should) shop around. If those inquiries happen within a couple of weeks, the system typically counts them as one inquiry, so you aren’t penalized for being smart about getting the best rate.

How to Check Your Credit Score (and Your Credit Report) the Right Way

Your credit score is often easy to find. If you have a credit card, many issuers show your score on your monthly statement.

Your credit report is different, it’s the detailed record that includes the information that feeds into your score. A reliable way to get a free report is annualcreditreport.com, where you can access it once a year. You can also get your report through the credit agencies.

It’s a good idea to check periodically, and even more frequently if you’re planning a big purchase (like buying a home within the next year). In that case, checking quarterly can help you confirm:

• the accounts listed are actually yours

• there are no signs of fraud

• your payment history is accurate (no incorrect late payments)

Catching errors early gives you time to correct them before they affect a major loan decision.

If you’re trying to improve your score without getting overwhelmed, focus on the biggest levers first: keep your payments on time (automate them so you don’t forget) and keep your credit utilization low by watching how much of your available credit you’re using. After that, be patient as your credit history length grows, avoid opening accounts just for “mix,” and space out new credit applications, except when rate-shopping for a large purchase within a short window.

Make sure you set yourself up for success so your finances feel less messy and confusing. Download the free Financially Empowered Woman Checklist for a quick gut check on what you’re doing well, and what to focus on next so you don’t find yourself second guessing every decision.