Simple definition
A line of credit is a pre-approved pool of money you can borrow from whenever you need it, up to a set limit. Think of it like a tap you turn on and off: you draw what you need, pay interest only on the amount you've used, and as you repay, that credit becomes available to borrow again. It differs from a lump-sum loan, where you get all the money at once and repay a fixed amount.
Why it matters
A line of credit gives you a financial cushion for uneven expenses or emergencies without borrowing more than you need. But easy access can invite overspending, and most lines carry variable rates that rise over time, so the flexibility comes with real risk if you lean on it too heavily.
Real-life example
You open a $10,000 personal line of credit. You draw $3,000 to fix a leaking roof and pay interest only on that $3,000, not the full $10,000. After repaying $1,000, you can borrow up to $8,000 again.
Common mistakes
- Treating an open line as extra income instead of borrowed money you must repay.
- Ignoring that the interest rate is usually variable and can climb.
- Making only minimum payments and letting a balance linger for years.
- Using a secured line, like a HELOC, for everyday spending and risking your collateral.
Pro tips
- Draw only what you have a concrete plan to repay.
- Ask whether the rate is fixed or variable before you sign.
- Pay more than the minimum to free up credit and cut interest.
- Keep the account open and lightly used to help your credit profile.
Related Money Dictionary terms
- Revolving CreditA type of borrowing where you can repeatedly use and repay up to a limit, like a credit card, without a fixed payoff date.
- HELOC (Home Equity Line of Credit)A revolving credit line secured by your home's equity that lets you borrow, repay, and borrow again up to a limit.
- Credit LimitThe maximum amount a lender lets you borrow on a credit card or line of credit before charges get declined.
- Available CreditThe portion of your credit limit you have not used yet, equal to your limit minus your current balance.
Frequently asked questions
How is a line of credit different from a loan?
A loan hands you a lump sum up front that you repay on a fixed schedule. A line of credit lets you borrow, repay, and re-borrow up to your limit, and you pay interest only on the balance you're actually using. That makes a line better for ongoing or unpredictable needs.
Does a line of credit affect my credit score?
Yes. Opening one adds a hard inquiry, and how much of the limit you use affects your credit utilization. Keeping the balance low relative to the limit can help your score, while maxing it out or missing payments can hurt it, just like a credit card.
Is a line of credit secured or unsecured?
It can be either. A home equity line of credit is secured by your house, which lowers the rate but puts your home at risk. An unsecured personal line has no collateral, so it usually carries a higher rate and a smaller limit. Read the terms to know which you have.
Knowing what Line of Credit means is knowledge — the first half. A brick gets placed when you act on it: check whether your line's rate is fixed or variable.
Also builds: Credit & Credit Score
Sources & references
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Plain-English education — not personalized legal, tax, or investment advice.