A line of credit is a pool of money a lender makes available to you, and you draw from it only when you need it
Unlike a loan, where you receive a lump sum upfront and start repaying when ready, a line of credit works like a flexible account. The lender approves you for a maximum amount — say $5,000 or $25,000 — and you can borrow any portion of it, any time. You pay interest only on what you actually use, not on the full approved amount. When you repay part of it, that money becomes available to borrow again.
Banks and credit unions offer lines of credit in two main forms: secured lines, backed by collateral like a savings account or home equity, and unsecured lines, which rely entirely on your credit history and income. The type you can get depends on what you own, what you earn, and what your credit report shows.
Getting approved requires you to meet the lender's standards for creditworthiness. Those standards vary widely — a credit union might approve you with a credit score of 650, while a major bank might require 700 or higher. The process itself typically takes one to three weeks from process to funding.
Key Takeaways
- A line of credit gives you access to a set amount of money that you can borrow and repay repeatedly, paying interest only on what you use.
- Secured lines of credit are easier to get because they are backed by collateral; unsecured lines require stronger credit history and income documentation.
- Banks and credit unions look at your credit score, payment history, debt-to-income ratio, and employment stability to decide whether to approve you.
- The interest rate you receive depends on the type of line, current market rates, and your personal credit profile — better credit usually means lower rates.
- You can use a line of credit for nearly any purpose: home repairs, business expenses, medical bills, or bridging cash flow gaps.
Secured vs. Unsecured: Which Type You Can Actually Get
A secured line of credit is backed by something you own. The most common forms are a home equity line of credit (HELOC), which uses your house as collateral, or a savings-secured line, which is backed by money sitting in a savings account at the same bank. Because the lender can seize the collateral if you don't pay, they take on less risk, which means they approve more people and charge lower interest rates.
To get a HELOC, you need to own a home with equity — the difference between what it's worth and what you owe on the mortgage. Most lenders require at least 15 to 20 percent equity. A savings-secured line requires you to have cash on deposit; the lender typically lets you borrow 80 to 100 percent of what's in the account. Both are faster to get approved for than unsecured lines, sometimes within a week.
An unsecured line of credit has no collateral behind it. The lender is betting entirely on your ability and willingness to repay. This means they scrutinize your credit score, employment history, and existing debt much more carefully. Most banks require a credit score of 700 or higher; some credit unions will work with scores in the 650 range. Interest rates are higher because the risk is higher — typically 8 to 18 percent depending on the lender and your profile.
If your credit is weak or you have little collateral, you may not may have access to for an unsecured line at all. In that case, a secured line or a credit card (which is technically a form of unsecured credit) may be your only option.
What Lenders Actually Check: Credit Score, Income, and Debt
When you explore for a line of credit, the lender pulls your credit report and runs a calculation called your debt-to-income ratio. This is the total of all your monthly debt payments — mortgage, car loans, credit cards, student loans — divided by your gross monthly income. Most lenders want to see this ratio below 43 percent, though some will go as high as 50 percent for secured lines.
Your credit score is the first filter. It's a three-digit number (typically 300 to 850) that summarizes your payment history, how much credit you're using, the length of your credit history, and the mix of credit types you have. A score of 750 or higher usually gets you the best rates and fastest approval. A score below 650 makes unsecured credit very difficult to get; below 600, nearly impossible at traditional banks.
The lender also verifies your income. For a salaried employee, this usually means a recent pay stub and a W-2 from the previous year. Self-employed people typically need two years of tax returns. Some lenders also check employment history — they want to see stability, not frequent job changes. A gap in employment or a recent job loss can slow approval or result in denial, even if your credit score is good.
Finally, the lender looks at your existing debt. If you already have high balances on credit cards or multiple loans, they may approve you for a smaller line or deny you altogether. They're assessing whether you can handle another monthly payment obligation.
Where to explore: Banks, Credit Unions, and Online Lenders
Your own bank or credit union is usually the easiest place to start. They already have your account history, deposit patterns, and payment behavior. If you've been a customer for years with no overdrafts or late payments, they may approve you with less scrutiny than a lender that knows nothing about you. Many banks offer lines of credit to existing customers at better rates than they offer to new applicants.
Credit unions often have lower approval thresholds than banks. If you're a member, ask whether they offer lines of credit and what their minimum credit score requirement is. Credit unions are member-owned and sometimes more flexible with people who have weaker credit but stable income.
Online lenders and fintech companies have made unsecured lines more accessible, but rates are often higher and terms less favorable than traditional banks. They approve faster — sometimes within 24 hours — but you'll pay for that speed. Read the terms carefully; some online lenders charge origination fees or require you to maintain a minimum balance.
If you're explore for a HELOC, you'll need to work with a bank or mortgage lender that services home loans. They'll order a home appraisal to verify your equity, which adds time and cost (typically $300 to $500 for the appraisal, though some lenders waive this).
The process Process and What Documents You'll Need
The process itself is straightforward: you provide personal information, employment details, and authorization for the lender to pull your credit report. Most lenders now let you start online and finish in person, or complete the entire process digitally.
For an unsecured line of credit, you'll typically need:
- A recent pay stub (within 30 days)
- A W-2 or tax return from the previous year
- A government-issued ID
- Proof of address (utility bill or lease)
- Authorization to pull your credit report
For a secured line (HELOC or savings-secured), you'll need the above plus proof of what you're using as collateral. For a HELOC, that means a recent mortgage statement and consent for a home appraisal. For a savings-secured line, just the savings account statement showing the balance.
Self-employed applicants should bring two years of tax returns and possibly a profit-and-loss statement. If you've changed jobs recently, bring documentation from both employers showing your employment dates and salary.
The lender will tell you within a few business days whether you're approved, denied, or approved for a smaller amount than you requested. If approved, you'll sign loan documents and the line becomes available — usually within one to two weeks.
Interest Rates and How They're Set
The interest rate on a line of credit is usually variable, meaning it changes when the market changes. Most unsecured lines are tied to the prime rate, which is what the Federal Reserve uses as a benchmark. When the Fed raises rates, your line's rate goes up; when it falls, yours falls too. The lender adds a margin on top of the prime rate — typically 4 to 10 percentage points for unsecured lines — so your actual rate is prime plus that margin.
Secured lines, especially HELOCs, often have lower rates because the collateral reduces the lender's risk. A HELOC might be prime plus 1 to 3 percentage points. Savings-secured lines are even cheaper because the collateral is liquid and certain.
Your personal rate depends on your credit score and the lender's assessment of your risk. Someone with a 750 credit score might get prime plus 5 percent, while someone with a 680 score might get prime plus 9 percent from the same lender. Shop around — rates vary significantly between institutions.
Some lenders offer an introductory rate for the first six months or a year, then switch to the variable rate. Read the terms to understand when the rate changes and what the maximum rate can be.
How to Use a Line of Credit and What Happens If You Don't Pay
Once approved, you access the line through a checkbook, debit card, or online transfer, depending on the lender. You draw what you need, when you need it. Interest accrues only on the amount you've borrowed, not on the full credit limit.
Most lines require a minimum monthly payment — usually interest plus a small portion of principal, or sometimes just interest during a draw period. If you're not using the line, you may not have a payment obligation at all, though some lenders charge an annual fee even if the balance is zero.
If you miss a payment, the lender reports it to the credit bureaus after 30 days, which damages your credit score. After 60 days, you may face late fees. After 120 days, the lender can freeze the line, preventing you from borrowing more. If the debt goes unpaid for six months or longer, the lender may close the account and send it to collections or sue you.
For a secured line like a HELOC, the consequences are more severe: the lender can foreclose on your home or seize the collateral. This is rare but it happens when borrowers stop paying entirely.
Frequently Asked Questions
Can I get a line of credit with bad credit?
Unsecured lines are very difficult with a credit score below 650. A secured line — backed by a home or savings account — is your better option. Some credit unions work with lower scores if you have stable income. Online lenders sometimes approve lower-credit applicants but charge much higher rates, often 15 to 25 percent.
How long does it take to get approved?
Secured lines typically take one to two weeks from process to funding. Unsecured lines take two to three weeks because the lender does more verification. Online lenders may approve within 24 hours but funding can still take several business days. A HELOC takes longer because of the appraisal process.
What's the difference between a line of credit and a credit card?
Both are revolving credit, but a credit card is unsecured and designed for smaller purchases with higher interest rates (typically 15 to 25 percent). A line of credit usually has a lower rate, higher limit, and is accessed by check or transfer rather than a card. Lines are better for larger, less frequent borrowing.
Will explore for a line of credit hurt my credit score?
Yes, temporarily. The lender's credit inquiry (called a hard pull) lowers your score by a few points. Opening a new account also lowers it slightly. The impact is small and fades within a few months if you don't miss payments. Multiple applications within a short period have a bigger impact, so explore to only one or two lenders.
Can I use a line of credit for anything?
Most lenders don't restrict how you use the money. You can use it for home repairs, medical bills, business expenses, debt consolidation, or cash flow gaps. Some lenders prohibit using a line for down payments on investment property or to pay off other lines of credit, so check the terms. Never use it for illegal purposes.