Here's the ground truth first. FICO publishes exactly how its score (300–850) is weighted:
| Factor | Weight | What it means |
|---|---|---|
| Payment history | 35% | Do you pay on time, every time |
| Amounts owed | 30% | How much of your available credit you're using |
| Length of credit history | 15% | Age of your accounts |
| New credit | 10% | Recent inquiries and new accounts |
| Credit mix | 10% | Variety of account types |
Payment history plus amounts owed = 65% of your score. Everything else is details. Now let's kill the myths.
Myth 1: "Checking my score hurts it"
Fact: Checking your own score is a soft inquiry — zero impact, always. What's mildly damaging is a hard inquiry, when a lender pulls your credit for an application (about 10% of your score, and only a few points for a year or so). The people who check their scores most often tend to have the highest scores, because monitoring catches errors and fraud early. Check freely.
Myth 2: "Carrying a balance builds credit"
Fact: This is the most expensive myth on the list. Carrying a balance does nothing for your score — FICO doesn't reward you for paying interest. What matters is utilization: the percentage of your credit limit reported as used. You get the identical score benefit by charging $500 and paying it in full as by charging $500 and revolving it — except the second version costs you ~20% APR. Pay in full. Every month.
Myth 3: "Closing old cards helps my score"
Fact: Usually the opposite. Closing your oldest card hurts you twice: it shortens your length of credit history (15% of your score) and it reduces your total available credit, which raises your utilization ratio (30% of your score). Example: $2,000 balance on $10,000 total limits = 20% utilization. Close a $5,000-limit old card and it's suddenly $2,000 on $5,000 = 40% utilization — score drops, for no benefit. Keep old cards open; use them once a year so the issuer doesn't close them.
Myth 4: "My income and savings affect my score"
Fact: FICO scores contain zero information about your income, savings, employment, or net worth. A broke person with perfect payment habits outscores a millionaire who pays late. (Lenders consider income separately when you apply — but the score itself is purely about credit behavior.)
Myth 5: "One late payment ruins everything forever"
Fact: A single 30-day late payment hurts — it can drop a high score significantly — but it's not permanent. FICO weighs recency, frequency, and severity: recent lates hurt more than old ones, and the damage fades with every subsequent on-time payment. One slip five years ago amid years of clean history is a footnote, not a life sentence. The fix is boring: never miss twice, and set autopay for at least the minimum on everything.
Myth 6: "I need to stay under 30% utilization"
Fact: Under 30% is fine, but it's a ceiling, not a target. Lower is better — the highest scorers typically use under 10%. And here's the trick most people miss: utilization has no memory in most FICO versions. It's a snapshot of your last reported balances. So you can run 40% utilization all year, pay down to 5% the month before a mortgage application, and your score reflects the 5%. Time big applications accordingly.
Myth 7: "All debt is equally bad for my score"
Fact: FICO's "amounts owed" (30%) cares mostly about revolving utilization — credit cards. Installment debt (mortgage, auto, student loans) is scored more gently; owing $200,000 on a mortgage bothers FICO far less than maxing out a $10,000 credit card. This is why someone with a mortgage and car loan can have a higher score than someone debt-free but with maxed cards. (Being debt-free is still great — it just doesn't maximize the score.)
The 5 Moves That Actually Raise Your Score
Ranked by impact, mapped to the weights:
- Autopay the minimum on everything (35% — payment history). One system beats willpower.
- Get utilization under 10% before any application (30% — amounts owed). Pay down, or request limit increases you don't use.
- Never close your oldest card (15% — history length). Downgrade fee cards instead of closing.
- Space out applications (10% — new credit). Batch rate-shopping within 14–45 days so multiple mortgage/auto inquiries count as one.
- Dispute errors. You're entitled to free reports; wrong collections and mistaken accounts are depressingly common and very fixable.
FAQ
Q: What are the 5 factors of a FICO credit score?
A: Payment history (35%), amounts owed (30%), length of credit history (15%), new credit (10%), and credit mix (10%). Scores range from 300 to 850.
Q: Does checking my credit score lower it?
A: No. Checking your own score is a soft inquiry with zero impact. Only hard inquiries from lender applications affect your score, and only slightly.
Q: Does carrying a credit card balance help my credit score?
A: No — this is a costly myth. Paying in full builds the exact same history without the ~20% interest. Only your reported utilization matters, not whether you revolve.
Q: Should I close old credit cards I don't use?
A: Generally no. Closing old cards shortens your credit history and raises your utilization ratio — both lower your score. Keep them open with occasional small charges.
Q: How fast can I raise my credit score?
A: Utilization improvements can show up in 30–60 days (one billing cycle). Late-payment damage fades over months to years of clean history. There's no legitimate overnight fix — anyone selling one is selling a scam.
This article is for general information only and is not financial advice.
Tool tie-in: A "Credit Score Factor Quiz" (5 questions mapping to the 35/30/15/10/10 weights → personalized fix list) would fit this article perfectly.