Credit & Debt
Credit and debt are powerful financial tools — when used wisely, they build wealth; when misused, they destroy it. Understanding your credit score, managing debt strategically, and leveraging good debt (like a mortgage) while eliminating bad debt (high-interest credit cards) is essential financial knowledge.
Key Concepts
These key concepts about credit and debt will help you make smarter borrowing decisions.
Credit Score
A 300-850 number that represents your creditworthiness. Scores above 740 get the best interest rates on loans.
Credit Utilization
The % of your available credit you're using. Keep it below 30% (ideally below 10%) for the best credit scores.
APR vs. Interest Rate
APR includes fees and is the true cost of borrowing. Always compare APRs, not just interest rates.
Good Debt vs. Bad Debt
Good debt (mortgages, student loans at low rates) builds assets. Bad debt (high-interest credit cards) destroys wealth.
Debt-to-Income Ratio
Monthly debt payments divided by gross monthly income. Lenders prefer below 36%. Below 20% is excellent.
Amortization
How loan payments are split between interest and principal over time. Early payments go mostly to interest.
Start Here — Beginner Guides
How Credit Scores Work: Everything You Need to Know
Understand what makes up your credit score, how it's calculated, and the exact steps to improve your score fast.
Debt Payoff Strategies: Avalanche vs. Snowball Method
Compare the two most effective debt payoff strategies and learn which one will save you the most money and time.
Go Deeper — Intermediate Guides
Learning Roadmap
Check your credit score and report
Get free credit reports at AnnualCreditReport.com. Check for errors — disputing them can raise your score quickly.
Understand what affects your credit score
Payment history (35%), utilization (30%), length (15%), mix (10%), new credit (10%).
List all debts with balances and interest rates
Create a complete debt inventory. You need this to choose between payoff strategies.
Choose your debt payoff strategy
Debt avalanche (highest interest first) saves the most money. Debt snowball (smallest balance first) builds momentum.
Negotiate better interest rates
Call credit card companies to lower your rate. With good credit, balance transfers to 0% APR cards save thousands.
Use credit strategically going forward
Pay balances in full monthly to build credit and earn rewards without paying interest.
Frequently Asked Questions
What is a good credit score?
670-739 is "Good," 740-799 is "Very Good," and 800+ is "Exceptional." With a 740+ score, you qualify for the best rates on mortgages, car loans, and credit cards, saving tens of thousands of dollars over your lifetime.
How fast can I improve my credit score?
You can see improvements in 30-90 days by paying down balances, disputing errors, and becoming an authorized user on a good account. Significant improvements (50+ points) typically take 3-6 months of consistent good behavior.
Should I use the debt avalanche or snowball method?
The debt avalanche (paying highest interest rate first) saves the most money mathematically. The debt snowball (paying smallest balance first) is psychologically motivating. Research shows the snowball is more effective for people who struggle with motivation — choose what you'll actually stick with.
Are balance transfers a good idea?
Yes, if you can realistically pay off the balance before the 0% promotional period ends. A 0% APR for 15-21 months means every dollar goes to principal. Watch for balance transfer fees (usually 3-5%) and have a clear payoff plan.