What Is A Credit Score?
- John Macy
- Dec 10, 2025
- 4 min read
Updated: Mar 26
What Are Credit Scores and How Can You Boost Your Score?
Your credit score is like your financial report card. Except instead of grades, it’s a three-digit number (300–850) that summarizes your financial health. While there are different models like VantageScore, the FICO Score remains the industry standard used by 90% of top lenders.
Why are Credit Scores Important?
And it’s not just for credit cards or loans. Your score is used for everything—from determining the rates you pay on a mortgage or car loan, to deciding whether you get approved for a credit card or an apartment rental application, to influencing car and home insurance premiums, and even showing up in employment applications. In addition, a strong credit score is one of the pillars of financial resilience, allowing you to access lower interest rates and emergency capital when you need it most.
What are the Components of a Credit Score?
So what's in that mysterious number? Let's break down the 5 key factors that determine your score and how to boost each one.
At a Glance: The FICO Credit Score Formula
35% Payment History
30% Amounts Owed (Utilization)
15% Length of History
10% New Credit
10% Credit Mix
Let's dig into each of these a bit more:
Payment History (35%): The single most important factor.
What it means: Did you pay your bills on time? Lenders want to see a history of responsible payments.
Amounts Owed (30%): How much you owe vs. your total maximum credit.
What it means: Lenders want to see you're not maxed out. Using a high percentage of your available credit can be seen as a sign of risk.
Length of Credit History (15%): The age of your accounts.
What it means: How long you've been managing credit. A longer history generally means more data for lenders to trust.
New Credit (10%): How many new accounts you've opened recently.
What it means: Applying for a lot of new credit in a short time can signal financial distress.
Credit Mix (10%): The variety of your credit accounts.
What it means: A mix of credit cards and installment loans (like a car or student loan) can be a positive signal. Note: this is the least important factor.
Credit Score Myths and Facts
Myth 1: Checking my own credit score will lower it.
The Reality: FALSE.
When you check your own score through a service or your bank, it is considered a "Soft Inquiry." These have zero impact on your score. Only "Hard Inquiries" — which happen when a lender reviews your credit for a new loan or credit card application — can cause a small, temporary dip.
Myth 2: Closing an old, unused credit card will help my score.
The Reality: FALSE.
Closing an old account can actually hurt your score in two ways. First, it reduces your total available credit, which may spike your Credit Utilization Ratio. Second, it can shorten the Length of Credit History, which accounts for 15% of your FICO score. If the card doesn't have an annual fee, it’s usually better to keep it open.
Myth 3: Carrying a small balance on my credit card improves my score.
The Reality: FALSE.
This is one of the most persistent myths in finance. You do not need to pay interest to have a great credit score. Your goal should be to show activity (using the card) and responsibility (paying it off in full). Paying your balance to $0 every month shows lenders you can handle credit without falling into debt.
Myth 4: A "Good" income automatically means a "Good" credit score.
The Reality: FALSE.
Your credit report does not care how much money you make. It only cares how you manage the money you owe. A person earning $200,000 a year can have a poor score if they pay bills late, while someone earning $40,000 can have an 800+ score through disciplined habits.
Myth 5: Paying off a debt removes it from my credit report.
The Reality: PARTIALLY TRUE.
While paying off a debt is always the right move for your financial health, the impact on your credit score can vary depending on the type of debt and the size of the debt (see summary table below). The reason that credit scores can sometimes decline when a debt is paid off is the impact on credit utilization rates (factor 2 above) which depend on both the total outstanding debt and the maximum credit available.
Debt Type | Primary Impact Factor | Expected Change in Score |
Credit Cards | Credit Utilization (30%) | Significant Increase |
Personal/Auto Loans | Credit Mix & History | Small Dip or Neutral |
Collection Accounts | Payment History (35%) | Variable (Model Dependent) |
Mortgage | Credit Mix | Neutral to Small Dip |
Myth 6: Paying off a debt removes any associated negative marks from my credit report.
The Reality: USUALLY FALSE, BUT CAN BE PARTIALLY TRUE.
Paying off a debt with negative marks (like late payments or collections) doesn't necessarily remove those negative marks immediately from your credit score — generally negative marks stay on your report for seven years, but that depends on which scoring model is being used. However, as those marks get older, their impact on your score diminishes, especially if you have established a fresh history of on-time payments.
Now that you know what's in your score, how do you improve it? Read our blog post "How to Improve Your Credit Score" to learn the practical steps to boost your number and secure a better financial future.
Author: John Macy, MBA, RICP®
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