Business Line of Credit (How It Works, What It Costs, and Who Qualifies)

A slow month hits. A big client pays late. A piece of equipment breaks down with no warning. These are not hypothetical scenarios. They are Tuesday for most small business owners.

A business line of credit gives you a financial cushion you can tap when you need it and ignore when you do not. Unlike a term loan, you do not take a lump sum and start paying interest on the full amount immediately. You get approved for a credit limit, draw what you need, pay interest only on what you use, and replenish the line as you repay. It works like a credit card but with lower rates and higher limits.

For businesses that deal with uneven cash flow, seasonal swings, or unexpected expenses, a line of credit is one of the most flexible funding tools available. Here is how it works, what it costs, and how to get one without overpaying.

How a Business Line of Credit Works

The mechanics are simple once you see them in action.

1. 1

   You apply and get approved for a credit limit

   The lender reviews your revenue, credit history, and time in business, then sets a maximum credit limit. This might be $50,000, $100,000, or more depending on your financials. Approval does not mean you owe anything yet.

2. 2

   You draw funds when you need them

   Need $15,000 to cover payroll during a slow week? Draw $15,000. Need $8,000 for emergency repairs next month? Draw $8,000. Most lenders let you request draws through an online portal, app, or even a linked business checking account.

3. 3

   You pay interest only on what you borrowed

   If your limit is $100,000 and you have drawn $15,000, you pay interest on $15,000. The other $85,000 sits available at no cost (though some lenders charge a small maintenance fee on the unused portion).

4. 4

   You repay and the credit replenishes

   As you pay down the balance, your available credit goes back up. Pay off that $15,000 draw and you are back to $100,000 available. This revolving structure means a single line of credit can cover dozens of different needs over months or years.

What a Business Line of Credit Actually Costs

Cost depends on where you borrow and how strong your application is. Here is how the numbers typically break down.

When comparing costs, look at the total cost of capital over a realistic usage scenario, not just the interest rate. A 20% APR line you draw from three times a year for short periods will cost far less in absolute dollars than a 12% term loan you are repaying over 36 months.

Secured vs. Unsecured Lines of Credit

This distinction affects your rates, your limits, and what is at risk if things go wrong.

Unsecured lines of credit require no collateral. The lender approves you based on your creditworthiness, revenue, and business history alone. The upside: no assets at risk beyond your obligation to repay. The downside: higher interest rates (often 5% to 15% more than secured), lower credit limits, and stricter qualification requirements. Most online lender lines are unsecured.

Secured lines of credit are backed by collateral, usually business assets like equipment, inventory, or accounts receivable. Some lenders accept a blanket UCC lien on your business assets instead of specific collateral. Secured lines come with lower rates, higher limits, and easier approval. The tradeoff is that the lender can seize the collateral if you default.

Who Qualifies and What Lenders Want to See

Requirements vary by lender type, but here is what most underwriters evaluate.

Credit score. Banks typically want 680 or above. Online lenders will work with scores as low as 580, sometimes lower if revenue is strong. Below 550, you are looking at alternative options like business funding for bad credit or invoice factoring where your credit matters less.

Time in business. Banks want two years minimum. Online lenders will consider businesses with six months of operating history. Startups with less than six months have very few line of credit options and will likely need to look at business credit cards or personal guarantees as a bridge.

Annual revenue. Most lenders set a floor. Online lenders typically require $100,000 to $150,000 in annual revenue. Banks want $250,000 or more. Your credit limit is usually set as a percentage of annual revenue, often 10% to 20%.

Cash flow and bank statements. Lenders want to see consistent deposits and positive cash flow. They will review three to twelve months of bank statements looking for overdrafts, negative balances, and revenue trends. A restaurant with $500,000 in annual revenue but frequent overdrafts is a harder sell than one with $300,000 and steady cash management.

Industries Where Lines of Credit Get Used Most

Any business with uneven cash flow benefits from a line of credit. But some industries rely on them more than others.

Construction and trades. Contractors and plumbing businesses need to buy materials and pay crews before the customer pays the final invoice. A line of credit covers that gap without requiring a new loan for every project. Draw for materials, bill the client, repay when the check clears, repeat.

Seasonal businesses. Landscaping companies earn most of their revenue between April and October but have fixed costs year round. A line of credit covers the slow months without forcing the owner to take a term loan they do not need once spring arrives.

Staffing and professional services. Staffing agencies pay employees weekly but bill clients on net 30 to net 60 terms. The line of credit bridges payroll until client payments arrive. Same story for IT service providers billing enterprise clients on long payment cycles.

Ecommerce and retail. Ecommerce businesses and retail stores need to stock inventory months before peak selling seasons. A line of credit lets you buy inventory in July for the holiday rush and repay it in January when the revenue comes in.

Line of Credit vs. Other Funding Options

A line of credit is not always the right tool. Here is how it compares to alternatives.

Line of credit vs. term loan. A term loan is better when you know the exact amount you need and have a specific, one time purpose (buying equipment, renovating a space, acquiring another business). A line of credit is better for ongoing, recurring, or unpredictable expenses. If you need $80,000 for a new truck, get a term loan or equipment financing. If you need $10,000 to $30,000 at random points throughout the year, get a line of credit.

Line of credit vs. business credit card. Credit cards are easier to get and work for small, frequent purchases. But the rates are 18% to 28%, there is no draw mechanism for transferring cash into your bank account without a cash advance fee, and limits are usually lower. A line of credit gives you direct access to cash at lower rates.

Line of credit vs. invoice factoring. If your cash flow problem is specifically caused by slow paying B2B customers, invoice factoring might be a better fit. You get cash against specific invoices without taking on revolving debt. But factoring only works with B2B invoices, while a line of credit works for any business expense.

Common Mistakes When Using a Business Line of Credit

A line of credit is a powerful tool, but misusing it creates problems that compound fast.

Treating it like long term financing. A line of credit is designed for short term needs: covering gaps, handling emergencies, smoothing out cash flow. If you draw $50,000 and carry it for 18 months, the interest cost will exceed what you would have paid on a term loan. If you find yourself consistently maxed out, that is a signal you need a different funding structure.

Not having a repayment plan for each draw. Every time you pull from the line, you should know how and when it gets repaid. "I will draw $12,000 for inventory, and it gets repaid when we sell through the order in six weeks." Without that discipline, draws pile up and interest eats into margins.

Ignoring renewal terms. Many lines of credit are reviewed annually. If your financials have declined, the lender can reduce your limit, raise your rate, or decline to renew. A HVAC business that relies on its credit line for seasonal inventory purchases needs to keep financials clean enough to survive annual review.

Taking the first offer without shopping. Rates, fees, and terms vary dramatically between lenders. Get quotes from at least three: one bank, one credit union, and one online lender. Compare the total cost of a realistic draw scenario, not just the advertised rate.

Frequently Asked Questions

What is the difference between a business line of credit and a term loan?

A term loan gives you a lump sum that you repay on a fixed schedule. A business line of credit gives you access to a pool of funds you can draw from as needed, repay, and draw again. You only pay interest on the amount you have drawn, not the full credit limit. Lines of credit work best for ongoing or unpredictable expenses. Term loans work best when you know exactly how much you need upfront.

How much can I get with a business line of credit?

Credit limits range from $10,000 to $500,000 for most small business lines of credit. Banks and SBA lenders may go higher for established businesses with strong financials. Online lenders typically cap at $250,000. Your limit depends on your annual revenue, credit score, time in business, and the lender's underwriting criteria.

Can I get a business line of credit with bad credit?

Yes, but your options narrow and costs go up. Most online lenders require a minimum credit score of 580 to 600. Below that, you may still qualify with strong revenue (typically $100,000 or more per year) and at least six months in business. Expect higher interest rates and lower credit limits compared to borrowers with scores above 680. Secured lines backed by collateral can also help offset a weaker credit profile.

How fast can I access funds from a business line of credit?

Once your line of credit is approved and set up, most lenders let you draw funds the same day or next business day. The initial approval process takes one to five business days with online lenders and two to six weeks with traditional banks. After approval, ongoing draws are nearly instant since you are pulling from an already approved credit facility. Check your eligibility to see what funding options fit your situation.