Credit Score Glossary (A–Z) — 100+ Terms Explained in Plain English (2026)
Understanding credit starts with knowing the language. Below are 100+ terms you’ll encounter on your credit journey — explained in plain English, with no jargon.
A
Account Age How long you’ve had a credit account open. Older accounts help your score because they demonstrate a longer history of managing credit. Closing old accounts can lower your score.
Adverse Action Notice A letter from a lender explaining why your credit application was denied or why you received worse terms (higher rate, lower limit). Under the FCRA, you have the right to receive this notice and to request a free copy of your credit report within 60 days.
Authorized User A person added to someone else’s credit card account. The account’s history appears on the authorized user’s credit report, which can help build credit — even if the authorized user never uses the card.
Auto Loan A loan used to purchase a vehicle. Lenders check your credit score to determine your interest rate. Generally, a score of 670+ gets you a competitive rate; below 600 often means subprime rates of 10–20%+.
B
Balance The amount you currently owe on a credit account. Keeping balances low relative to your credit limit (ideally below 30%) helps your credit utilization ratio — one of the biggest factors in your score.
Bankruptcy A legal process that discharges some or all of your debts. Chapter 7 stays on your credit report for 10 years; Chapter 13 for 7 years. Both cause significant score drops but scores can recover within 2–4 years with responsible credit use.
BNPL (Buy Now Pay Later) A short-term payment option offered by services like Klarna, Afterpay, and Zip. As of 2026, BNPL payment history now appears on credit reports. On-time payments can help your score; missed payments can hurt it.
Bureau Short for credit bureau. The three major U.S. credit bureaus are Equifax, Experian, and TransUnion. They collect and maintain your credit history and produce your credit reports.
C
Charge-Off When a lender writes off your debt as a loss after you’ve missed payments for 120–180 days. A charge-off is a serious negative mark that stays on your credit report for 7 years. The debt still exists and can be sold to collections.
Collection Account A debt that has been sent to a collection agency after the original creditor gave up trying to collect. Collections stay on your report for 7 years from the date of first delinquency. As of 2026, paid medical collections under $500 no longer appear on reports.
Consumer Financial Protection Bureau (CFPB) The U.S. government agency that regulates consumer financial products and enforces laws like the FCRA and FDCPA. You can file complaints about credit bureaus or creditors at consumerfinance.gov.
Credit Builder Loan A small loan designed specifically to help people build or rebuild credit. The lender holds the money in a savings account while you make payments. Once paid off, you receive the funds. Your payment history is reported to the bureaus.
Credit Limit The maximum amount you’re allowed to borrow on a credit card or line of credit. Using a high percentage of your limit (high utilization) hurts your score.
Credit Mix The variety of credit types in your profile — credit cards, installment loans, mortgages, auto loans. Having a healthy mix accounts for about 10% of your FICO score.
Credit Report A detailed record of your credit history maintained by each of the three bureaus. It includes your accounts, payment history, balances, inquiries, and public records. You’re entitled to one free report per bureau per year at AnnualCreditReport.com.
Credit Score A three-digit number (typically 300–850) that summarizes your creditworthiness. The most widely used scoring model is FICO. VantageScore is another common model. Higher scores mean lower risk to lenders.
Credit Utilization The percentage of your available revolving credit that you’re using. Calculated as: (Total Balances ÷ Total Credit Limits) × 100. Keeping utilization below 30% is recommended; below 10% is ideal for excellent scores.
D
Debt Consolidation Combining multiple debts into a single loan, ideally with a lower interest rate. Can simplify payments and reduce interest costs. Taking out a consolidation loan may cause a temporary score dip due to a hard inquiry but can help long-term.
Debt-to-Income Ratio (DTI) The percentage of your monthly income that goes toward debt payments. Lenders use this alongside your credit score when evaluating loan applications. Most mortgage lenders prefer a DTI below 43%.
Default Failure to repay a loan according to the agreed terms. Defaulting on a loan causes severe credit score damage and can lead to collections, charge-offs, or legal action.
Delinquency Being late on a payment. Payments 30+ days late are typically reported to the credit bureaus. The later the payment, the more damage: 30 days late is bad; 90+ days late is very bad.
Dispute A formal challenge you submit to a credit bureau or creditor to correct inaccurate information on your credit report. Under the FCRA, bureaus must investigate disputes within 30 days.
E
Equifax One of the three major U.S. credit bureaus. Equifax collects and maintains credit data and sells credit reports and scores to lenders and consumers.
Experian One of the three major U.S. credit bureaus. Experian also offers Experian Boost, which allows you to add utility and telecom payments to your credit file.
Experian Boost A free feature from Experian that lets you add on-time utility, phone, and streaming service payments to your Experian credit report. Can increase your Experian-based scores, particularly for thin-file consumers.
F
Fair Credit Reporting Act (FCRA) The federal law that governs how credit bureaus collect and use your information. It gives you the right to dispute errors, access your credit report, and be notified when information is used against you.
Fair Debt Collection Practices Act (FDCPA) Federal law that limits how debt collectors can contact you and what they can say. Collectors cannot harass, threaten, or mislead you. Violations can be reported to the CFPB.
FICO Score The most widely used credit scoring model in the U.S., created by Fair Isaac Corporation. Most lenders use FICO scores when evaluating applications. The score range is 300–850. There are multiple versions: FICO 8, FICO 9, FICO 10, and FICO 10T.
FICO 8 The most commonly used FICO version by lenders. It penalizes high utilization heavily but ignores collections under $100. Still widely used for credit cards and personal loans.
FICO 9 An updated version that ignores paid collections entirely and treats medical debt differently. Better for consumers but not yet universally adopted.
FICO 10T The newest FICO version, now required for mortgage underwriting by Fannie Mae and Freddie Mac as of 2026. It uses “trended data” — looking at whether your balances are going up or down over time, not just a snapshot. Paying down balances helps more; increasing balances hurts more.
Foreclosure The legal process by which a lender takes possession of a property when the borrower stops making mortgage payments. A foreclosure stays on your credit report for 7 years and causes a major score drop.
Fraud Alert A notice placed on your credit report that warns lenders to take extra steps to verify your identity before extending credit. Free to place and lasts 1 year (7 years for extended fraud alerts for identity theft victims).
G
Good Credit Generally considered a FICO score between 670 and 739. With good credit, you’ll qualify for most loans and credit cards, though not always at the best rates.
Goodwill Letter A written request to a creditor asking them to remove a late payment or negative mark from your credit report as an act of goodwill — typically citing an otherwise strong payment history or a one-time hardship. Not guaranteed to work, but costs nothing to try.
H
Hard Inquiry A credit check triggered when you apply for new credit (loan, credit card, mortgage). Hard inquiries typically lower your score by 5–10 points and stay on your report for 2 years. Multiple mortgage or auto loan inquiries within a short window (14–45 days) are usually counted as one.
HELOC (Home Equity Line of Credit) A revolving line of credit secured by your home equity. Lenders typically require a score of 620–680+ to qualify. With a FICO 10T score now used for many mortgage products, the requirements may shift.
I
Installment Loan A loan repaid in fixed monthly payments over a set period — such as a mortgage, car loan, or personal loan. Having installment loans alongside revolving credit (credit cards) improves your credit mix.
J
Judgment A court ruling that you owe a debt. As of 2017, civil judgments were removed from the three major bureaus’ reports, but they can still affect you in other ways (wage garnishment, bank levies).
L
Late Payment A payment made after the due date. Payments 30+ days late are reported to credit bureaus. A single 30-day late payment can drop a good score by 60–100 points. Late payments stay on your report for 7 years but their impact fades over time.
Lien A legal claim against your property (usually a home) as security for a debt. Tax liens were removed from credit reports in 2018 but can still affect your ability to sell or refinance a property.
M
Medical Debt Debt from healthcare bills. As of 2026, paid medical collections no longer appear on credit reports, and unpaid medical debts under $500 have also been removed from reports by the major bureaus. Larger unpaid medical debts may still appear.
Minimum Payment The smallest amount you must pay each month to keep your credit card account in good standing. Paying only the minimum keeps you in debt longer and increases interest costs, but it does prevent a late payment from being reported.
N
Negative Item Any derogatory mark on your credit report — late payments, collections, charge-offs, bankruptcies, foreclosures, repossessions. Most negative items stay for 7 years; bankruptcies for 10.
O
On-Time Payment A payment made by the due date. Payment history is the single biggest factor in your FICO score (35%). Consistently paying on time is the most reliable way to build and maintain a strong credit score.
P
Payment History A record of whether you’ve paid your bills on time. It’s the most important factor in both FICO and VantageScore models. Even one missed payment can significantly lower your score.
Personal Loan An unsecured loan (not backed by collateral) used for any purpose. Lenders check your credit score and income. A score of 600+ is typically needed to qualify; 670+ gets you better rates.
Piggybacking Becoming an authorized user on someone else’s credit card to benefit from their positive credit history. A legitimate credit-building strategy, though some lenders look closely at how the account was established.
Public Record Information from court records that appears on your credit report — such as bankruptcy filings. Judgments and tax liens were removed from reports in 2017–2018 but bankruptcy filings remain.
R
Repossession When a lender reclaims an asset (usually a vehicle) after you stop making payments. A repossession stays on your credit report for 7 years and causes significant score damage.
Revolving Credit A type of credit with a set limit that you can borrow against repeatedly — like credit cards or HELOCs. Your balance fluctuates based on spending and payments. High revolving balances relative to your limits hurt your score.
S
Score Simulation A tool that shows how specific actions — like paying off a balance or opening a new card — might affect your credit score before you take action.
Secured Credit Card A credit card backed by a cash deposit that serves as your credit limit. Designed for people with no credit or bad credit. Used responsibly, a secured card builds credit history within 6–12 months.
Soft Inquiry A credit check that does not affect your score — such as checking your own credit, pre-approval checks, or employer background checks. Only hard inquiries (from credit applications) impact your score.
T
TransUnion One of the three major U.S. credit bureaus. Collects and maintains credit data for U.S. consumers and businesses.
Trended Data A feature of newer scoring models (FICO 10T, VantageScore 4.0) that looks at your balance history over 24 months — not just a snapshot. If your balances are consistently decreasing, this improves your score. If they’re consistently increasing, it hurts.
U
Utilization Rate See Credit Utilization. The percentage of revolving credit you’re using at any given time. One of the most important and most controllable factors in your credit score.
V
VantageScore A credit scoring model developed jointly by Equifax, Experian, and TransUnion as an alternative to FICO. VantageScore 4.0 is now used by Fannie Mae and Freddie Mac alongside FICO 10T for mortgage underwriting. Range is 300–850, same as FICO, but calculated differently.
VantageScore 4.0 The current version of VantageScore, now required for mortgage lending. It incorporates trended data and can score consumers with as little as one month of credit history — making it easier for thin-file consumers to get a score.
W
Write-Off See Charge-Off. When a creditor removes an uncollectable debt from their books as a loss.
Last updated: June 2026 | Sources: FICO.com, CFPB.gov, Experian.com, Equifax.com, TransUnion.com