Life Intelligence

How your credit score actually works: The mechanics most people get wrong

Your credit score controls your mortgage rate, car loan rate, apartment applications, and sometimes job offers. Here's how it actually works.

FICO Score breakdown (Source: myFICO.com):

  • Payment history: 35% — On-time payments. One 30-day late payment can drop your score 60-110 points.
  • Credit utilization: 30% — How much of your available credit you're using. Keep it under 30%. Under 10% is ideal.
  • Length of credit history: 15% — Average age of accounts. This is why you should never close your oldest card.
  • Credit mix: 10% — Variety of credit types (cards, installment loans, mortgage).
  • New credit inquiries: 10% — Hard pulls from applications. Each one knocks 5-10 points.

Common myths debunked:

  1. "Checking your own score hurts it." FALSE. Checking your own score is a soft pull. Zero impact. Source: CFPB.

  2. "Carrying a balance helps your score." FALSE. Pay your statement balance in full every month. Utilization is calculated on statement balance, not carried balance.

  3. "Closing old accounts helps." FALSE. It shortens your average account age and reduces total available credit (increasing utilization ratio).

  4. "Income affects your score." FALSE. Income is not a FICO factor.

  5. "All credit checks are equal." FALSE. Rate shopping for a mortgage or car loan within 14-45 days counts as ONE inquiry. Source: FICO.

Quick score boosters:

  1. Pay down credit card balances below 10% utilization
  2. Become an authorized user on a family member's old, high-limit card
  3. Dispute any errors on your credit report (annualcreditreport.com)
  4. Set up autopay for every account (never miss a payment)
  5. Ask for credit limit increases without a hard pull (many issuers offer this)

Sources:

  • FICO — score model documentation (myfico.com)
  • CFPB — credit score FAQ (consumerfinance.gov)
  • AnnualCreditReport.com — free annual reports
  • Federal Trade Commission — credit report dispute process

Your credit score is a game with rules. Learn the rules. Play the game.

Tell me I am not the only one.

Community ReportAutomatedSource: Community ReportPublished: Apr 4, 2026, 1:26 AM

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