Credit & debt glossary

A–C

• APR (Annual Percentage Rate) — the yearly interest rate on a loan or credit card, not including compounding.
• Authorized user — someone added to another person's credit card account. Inherits that account's credit history.
• Balance transfer — moving a credit card balance to another card, usually to take advantage of a lower rate.
• Bankruptcy — a legal process that eliminates or restructures unmanageable debt. Chapter 7 (liquidation) and Chapter 13 (repayment plan) are the two main types.
• Collections — when a creditor sells your unpaid debt to a third-party agency that attempts to collect it.
• Credit bureau — a company (Equifax, Experian, TransUnion) that collects and reports your credit history.
• Credit freeze — a block on your credit file that prevents new creditors from pulling your report. Free and powerful.
• Credit limit — the maximum balance a credit card issuer allows you to carry.
• Credit utilization — the percentage of available credit you're using. Lower is better for your score.

D–M

• Debt consolidation — combining multiple debts into a single loan, ideally at a lower interest rate.
• Delinquency — a payment that's past due. Reported to credit bureaus after 30 days late.
• FICO score — the most widely used credit score, ranging from 300 to 850.
• Grace period — the time between a credit card statement date and payment due date, during which no interest accrues on new purchases (if you pay in full).
• Hard inquiry — a credit check by a lender when you apply for credit. Can lower your score by a few points temporarily.
• Minimum payment — the smallest amount your credit card company will accept each month. Paying only this leads to decades of interest.

P–Z

• PMI (Private Mortgage Insurance) — insurance required by lenders when you put less than 20% down on a home. Protects the lender, not you.
• Principal — the original amount borrowed, excluding interest.
• Revolving credit — credit that renews as you pay it off (credit cards). Contrast with installment credit (auto loans).
• Secured credit card — a credit card backed by a cash deposit. Used to build or rebuild credit.
• Soft inquiry — a credit check that doesn't affect your score. Includes checking your own credit.
• Statute of limitations — the time window during which a creditor can sue you to collect a debt. Varies by state.
• Utilization ratio — same as credit utilization. The percentage of available credit currently in use.

Where these terms show up in real life

Credit vocabulary arrives in clusters. Applying for your first card, you meet hard inquiries, credit limits, and secured cards. Carrying a balance introduces you to APR, minimum payments, and the grace period you just forfeited. Falling behind walks you through delinquency, collections, and the statute of limitations. And buying a home brings the whole cast at once — your FICO score sets the rate, your utilization gets scrutinized, and PMI appears if your down payment is under 20%. Knowing the words before the moment means you negotiate instead of nodding.

The single most useful mental model: your credit score is built from five ingredients, and two of them — payment history (about 35%) and utilization (about 30%) — do most of the work. Nearly every term in this glossary connects back to protecting one of those two numbers.

The pairs people mix up

A worked example: what utilization costs

Two borrowers each have a $10,000 total credit limit and identical payment histories. One carries a $4,500 statement balance — 45% utilization; the other pays down to $800 before the statement date — 8% utilization. The difference can be 40-60 FICO points. Now attach a mortgage to it: on a $350,000 loan in early 2026, the borrower in the 760+ tier might get a rate around 6.3% (estimate), while the 680 borrower pays closer to 6.8% — about $115 more per month, or roughly $41,000 over 30 years. Utilization costs nothing to fix; you simply pay the card before the statement cuts. Few numbers in personal finance have a better effort-to-payoff ratio.

Common misunderstandings

• Carrying a small balance does NOT help your score — that myth costs Americans billions in interest. Paying in full every month builds credit identically, for free.
• Closing an old card can hurt: you lose its credit limit (raising utilization) and eventually its age. Downgrade to a no-fee version instead of canceling.
• Checking your own credit is a soft inquiry and never lowers your score — check all three bureau reports free at annualcreditreport.com.
• The minimum payment is designed for the issuer, not you: on a $5,000 balance at 24% APR, minimums alone can take over a decade and cost more in interest than the original debt.
• A credit freeze does not affect your score, your existing cards, or your bills — it only blocks new accounts, which is exactly what an identity thief needs.

The bottom line

Credit vocabulary sounds adversarial because it is: most of these terms were written by lenders, for lenders, and the defaults favor them. But the system is also remarkably mechanical, which means it can be gamed legally by anyone who knows the two levers. Pay every account on time, every time — set autopay for at least the minimum on the day the bill generates, so a forgotten due date can never cost you 80 points. Keep reported utilization low by paying cards down before the statement date, not just the due date. Those two habits are roughly two-thirds of your score, and neither costs a dollar. The rest of the glossary is defense: freeze your credit at all three bureaus (it is free and takes ten minutes), check your reports annually for accounts you never opened, and understand that collections agencies and card issuers both negotiate — the sticker price of a debt, like the sticker price of anything, is an opening position. Learn the words once and the system stops happening to you and starts working for you.