Business line of credit: how it works and common uses

Published Wednesday 22 April 2026

Table of contents

• What is a business line of credit?
• How does a line of credit work?
• Types of business lines of credit
• Example of a line of credit
• Advantages and disadvantages of a business line of credit
• Line of credit vs term loan
• How is a line of credit different from a credit card?
• Common business uses for a line of credit
• Risks of over-using a line of credit
• How do you get a line of credit?
• FAQs on business lines of credit

Key takeaways

• Utilize a business line of credit for short-term, variable funding needs like covering seasonal cash flow gaps or bridging invoice payment delays, rather than for large one-off purchases where a term loan with fixed repayments would be a better fit.
• Choose between a secured or unsecured line of credit based on your situation: secured lines offer lower interest rates and higher limits but require collateral, while unsecured lines are faster to set up but rely heavily on your credit score and business history.
• Avoid using a line of credit to cover ongoing losses or routine payroll, as this can mask deeper cash flow problems and lead to over-reliance on borrowing, which eats into your margins over time.
• Build your business credit profile by borrowing only what you need and repaying promptly, since responsible use of a revolving line of credit strengthens your credit history and improves your chances of better terms in the future.

What is a business line of credit?

A business line of credit is a flexible financing option that gives your business access to a set amount of funds you can draw from as needed. This is ideal because cash generates little return when held in reserve. You only pay interest on the amount you actually use, not the total credit limit available.

Unlike a traditional loan where you receive a lump sum upfront, a line of credit lets you borrow, repay, and borrow again without reapplying. This makes it ideal for managing cash flow gaps, especially for businesses that need working capital for inventory and receivables.

How does a line of credit work?

A business line of credit works by giving you access to a pre-approved pool of funds up to a set limit. You withdraw what you need, when you need it, and only pay interest on the amount you've borrowed.

A line of credit is flexible because you can:

• Draw funds on demand: Access money whenever cash flow gets tight or an opportunity appears.
• Pay interest only on what you use: Borrow £10,000 from a £50,000 limit and you're only charged interest on £10,000.
• Repay and reuse: Repaid funds become available again with a revolving line, no reapplication needed.

Some lines of credit expire after a set period, while revolving lines remain open as long as you meet the lender's terms. For instance, similar overdraft facilities are often provided for a fixed period of one year, at which point they are reviewed and renewed as appropriate.

Types of business lines of credit

Business lines of credit come in two main forms: revolving versus non-revolving, and secured versus unsecured. Understanding these options helps you choose the right fit for your situation.

Revolving vs non-revolving lines of credit

Revolving lines of credit let you borrow, repay, and borrow again up to your limit. The credit refreshes as you pay it back, making it useful for ongoing or unpredictable expenses.

Non-revolving lines of credit work differently. Once you've drawn the funds and repaid them, you can't access that credit again. These suit one-off projects or purchases where you know the total cost upfront.

Lines of credit also differ based on whether they require collateral.

Secured vs unsecured lines of credit

Secured lines of credit require collateral, such as property, equipment, or inventory. Because the lender has security, you'll typically get:

• Lower interest rates: Reduced risk for lenders means lower costs for you.
• Higher credit limits: Collateral supports larger borrowing amounts.
• Easier approval: Limited credit history matters less when assets back the loan.

Unsecured lines of credit don't require collateral, similar to how commercial paper is unsecured for short-term financing. They're faster to set up but usually come with higher interest rates and lower limits. Lenders rely more heavily on your credit score and business financials to assess risk.

Example of a line of credit

A bank approves your business for a £50,000 line of credit. You withdraw £10,000 to buy inventory and only pay interest on that £10,000. The remaining £40,000 stays available.

A few weeks later, you need £5,000 for new shop fittings. You can withdraw that amount even before you've repaid the original £10,000.

Your total borrowed is now £15,000, and that's the amount you're charged interest on. Once you repay some or all of it, those funds become available to borrow again.

Advantages and disadvantages of a business line of credit

A business line of credit offers flexibility and cost savings but comes with variable rates and qualification requirements. Here's what to weigh up.

Advantages

A line of credit gives you:

• Borrow flexibly: Draw only what you need, when you need it.
• Pay for what you use: Get charged interest only on drawn funds, not your total limit.
• Reuse your credit: Access repaid funds again with revolving lines.
• Access funds quickly: Draw money once approved without reapplying.
• Build business credit: Strengthen your credit profile through responsible use.

However, there are also drawbacks to consider.

Disadvantages

Lines of credit come with certain limitations:

• Variable interest rates: Rates may fluctuate, making costs harder to predict.
• Additional fees: Some lenders charge maintenance fees, draw fees, or inactivity fees.
• Lower limits: You'll typically get less than with a term loan.
• Strict qualification requirements: Lenders often require strong credit and established business history.
• Risk of over-reliance: Easy access to funds can lead to borrowing more than you need.

Line of credit vs term loan

The main difference between a line of credit and a term loan is structure. A term loan gives you a lump sum upfront with fixed repayments over a set period. A line of credit lets you draw funds as needed and only pay interest on what you use.

They compare as follows:

• Loan amount: Term loans typically offer larger amounts for major purchases like property or equipment.
• Repayment: Term loans have fixed monthly payments while lines of credit offer flexible repayment.
• Interest rates: Term loans often have lower rates while lines of credit may charge more for flexibility.
• Best for: Term loans suit one-off, high-cost investments while lines of credit suit unpredictable, short-term needs.

A line of credit works as a financial cushion when you're not sure exactly how much you'll need or when.

How is a line of credit different from a credit card?

A business line of credit differs from a credit card primarily in credit limits, interest rates, and how you access funds. Both give you flexible access to money, but a line of credit typically offers better terms for larger amounts.

Here are the key differences between a business line of credit and a credit card:

• Security: Credit cards are almost always unsecured while lines of credit can be secured with collateral.
• Interest rates: Credit cards usually charge higher rates than secured lines of credit.
• Credit limits: Lines of credit generally offer higher limits for larger expenses.
• Access to funds: Credit cards suit everyday purchases while lines of credit suit cash withdrawals and larger payments.

For smaller, frequent purchases, a credit card may work better. For larger, less predictable funding needs, a line of credit is usually the better choice.

Common business uses for a line of credit

A line of credit works best for short-term, variable funding needs. Here are the most common scenarios:

• Cover seasonal cash flow: Pay overheads or payroll during slow periods when revenue dips.
• Bridge payment gaps: Pay suppliers or staff while waiting for clients to settle invoices, since it can take two or three months for customers to pay.
• Seize inventory opportunities: Take advantage of bulk discounts or stock up before busy periods.
• Handle equipment repairs: Address unexpected breakdowns without disrupting operations.
• Manage emergency expenses: Cover urgent costs that can't wait for a traditional loan.

Repayments are more flexible than with a term loan. You can generally pay lump sums without penalties, which helps you clear the balance quickly when cash flow improves.

Risks of over-using a line of credit

The main risks of a business line of credit include variable interest rates, potential over-reliance, and using credit to mask deeper cash flow problems. A line of credit isn't the right solution for every funding need.

Avoid using a line of credit in these situations:

• Covering ongoing losses: Borrowing won't fix the underlying issue if your business consistently spends more than it earns.
• Funding long-term payroll: Routine expenses should come from revenue, not credit.
• Replacing proper cash flow management: Continual reliance on credit may signal deeper problems with invoicing or collections.

Watch for these warning signs that you're over-relying on credit:

• Regularly maxing out your limit
• Using new draws to repay old ones
• Watching interest payments eat into your margins

If you need finance for the medium to long term, a term loan with lower interest rates may be a better fit. If cash flow is the root issue, consider reviewing your accounts receivable process or speaking with your accountant.

How do you get a line of credit?

To get a business line of credit, apply through a bank, building society, or alternative lender. Submit your business financials and credit history for review. You can also explore options like factoring, where lenders advance the majority of your customer invoices.

FAQs on business lines of credit

Here are answers to common questions about business lines of credit.

What's the difference between a business line of credit and a business loan?

A business line of credit gives you ongoing access to funds up to a set limit, and you only pay interest on what you borrow. A business loan provides a lump sum upfront with fixed repayment terms. Lines of credit suit variable expenses, while loans suit one-time purchases.

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

It's more difficult to qualify for a business line of credit with bad credit, but some lenders offer options. You may face higher interest rates, lower credit limits, or need to provide collateral. Alternative lenders and credit unions may have more flexible requirements than traditional banks.

How long does it take to get approved for a business line of credit?

Approval times vary by lender. Some online lenders can approve applications within 24 to 48 hours, while traditional banks may take several weeks. The speed depends on your documentation, credit history, and the lender's process.

What interest rate can I expect on a business line of credit?

Interest rates typically range from 7% to 25%, depending on whether the line is secured or unsecured, your credit score, and your business history. Secured lines generally have lower rates than unsecured ones.