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💼 Business Funding

Business Line of Credit &
Revolving Credit Explained

A business line of credit gives you flexible, on-demand access to capital — draw what you need, repay it, and draw again. Learn how revolving credit works, how interest is calculated, and how to use a line strategically.

Calculate My Interest Cost Read the guide ↓
$10K–$500K
Typical Business LOC Range
Interest Only
Charged on Amount Drawn
Revolving
Repay & Redraw as Needed
The Basics

What Is a Business Line of Credit?

A business line of credit is a revolving credit facility that gives you access to a set credit limit you can draw from whenever you need funds. You only pay interest on what you've actually borrowed, not the full limit. As you repay, that capacity becomes available again.

Unlike a term loan where you receive a lump sum and repay on a fixed schedule, a line of credit is flexible: draw $20,000 for a payroll gap, repay it over 60 days, then draw $40,000 for a new inventory order — all from the same facility. This makes it one of the most versatile financing tools available to small businesses.

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Revolving Credit

Draw, repay, and redraw repeatedly up to your credit limit. The line resets as you pay down the balance — no need to reapply for each use.

Draw anytime Interest on draws only Reusable
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Secured Line of Credit

Backed by collateral — accounts receivable, inventory, or real estate. Lower rates and higher limits, but assets are at risk if you default.

Lower rates Higher limits Collateral required
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Unsecured Line of Credit

No specific collateral pledged — approved on revenue, credit score, and business history. Higher rates but faster and simpler to obtain.

No collateral Revenue-based Fast access

Best use cases: seasonal cash flow gaps, covering payroll between client payments, capturing time-sensitive inventory discounts, handling unexpected expenses, and bridging the gap between completing work and receiving payment. A line of credit is not well-suited as a substitute for long-term capital investment.

How It Works

How Revolving Credit Works: A Visual Example

Unlike installment debt — where you borrow once and pay down a fixed balance — revolving credit fluctuates as you draw and repay. Here's a $100,000 line of credit over a typical quarter:

$100,000 Line of Credit — Activity Example
Credit Used $35,000 drawn · $65,000 available
35%
Jan 5 — Drew $35,000 for inventory purchase
Balance: $35,000
Jan 28 — Repaid $20,000 from customer payments
Balance: $15,000
Feb 12 — Drew $50,000 for seasonal payroll & marketing
Balance: $65,000
Feb 28 — Repaid $30,000 — interest charged only on $65K drawn
Balance: $35,000
Mar 20 — Repaid remaining $35,000 — line fully available again
Balance: $0

You only pay interest on what you draw. If your $100,000 line sits at $0, you owe nothing (though some lenders charge a small annual or monthly maintenance fee). Interest accrues daily on the outstanding drawn balance — not the full credit limit.

Interest Calculator

How to Calculate Interest on a Line of Credit

Interest on a business line of credit accrues daily on the outstanding drawn balance. Your interest cost varies based on how much you've drawn and for how long. Use the calculator below to see the exact cost of a specific draw.

Line of Credit Interest Formula
Daily Interest = Draw Amount × (Annual Rate ÷ 365)

Multiply daily interest by the number of days the balance is outstanding to get your total interest charge. Most lenders bill monthly on the average daily balance. Some also charge a draw fee (1–2%) each time you access funds.

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Line of Credit Interest Calculator
Calculate the interest cost for any draw amount and hold period
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Daily Interest
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Total Interest
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Total Cost (+ fees)
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Revolving Utilization

What Is Revolving Credit Utilization — and Why It Matters

Revolving credit utilization is the percentage of your available revolving credit currently in use. It's one of the most significant factors in your credit score — for both personal and business credit profiles. High utilization signals financial stress to lenders; low utilization signals discipline and available capacity.

Revolving Utilization Formula
Utilization % = Total Balances ÷ Total Credit Limits × 100

If you have a $100,000 line of credit and $35,000 drawn, your utilization is 35%. Credit scoring models evaluate this across all revolving accounts combined — not just one line. Keeping utilization below 30% is generally considered healthy.

0–10%
Excellent
Ideal when applying for new financing; maximum score benefit
11–30%
Good
Acceptable range; minimal negative credit impact
31–70%
High
Begins to lower scores; lenders may reduce limits
71–100%
Danger
Significant score damage; viewed as high-risk by lenders

Revolving debt vs. installment debt: Revolving debt (lines of credit, credit cards) directly impacts your utilization ratio and credit score in real time. Installment debt (term loans, mortgages) does not factor into utilization — it's tracked separately. This is why paying down revolving balances before applying for new financing can quickly improve your borrowing profile.

Line of Credit vs. Term Loan

Business Line of Credit vs. Term Loan: Which Is Right?

These two products often serve different purposes. Choosing the wrong structure costs money — either in unnecessary interest, or in a repayment schedule that doesn't fit your cash flow.

Feature Business Line of Credit Term Loan
Structure Revolving — draw, repay, redraw Installment — lump sum, fixed repayment schedule
Interest charged on Amount drawn only Full outstanding balance
Best for Ongoing cash flow, seasonal gaps, working capital One-time investments: equipment, expansion, acquisitions
Repayment Flexible — interest only or principal + interest on draws Fixed monthly payments over a set term
Typical APR 15–40% unsecured · 7–15% secured 8–35% depending on lender and credit profile
Reusable? Yes — revolves as you repay No — single disbursement
Installment or revolving? Revolving Installment

Is a small business loan installment or revolving? It depends on the product. Traditional term loans and SBA loans are installment — fixed payments, single disbursement. Business lines of credit and credit cards are revolving. Mortgages are installment. The distinction matters for credit scoring, financial planning, and how each affects your debt service coverage when applying for additional financing.

Special Use Cases

Lines of Credit for Nonprofits & New Businesses

Lines of credit aren't only for established for-profit businesses. Nonprofits, startups, and organizations with unconventional revenue models all have access to revolving credit facilities — often through specialized lenders.

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Nonprofit Lines of Credit

Nonprofits frequently face timing mismatches between grant disbursements and operating expenses. A line of credit bridges these gaps without disrupting programs. CDFIs and some community banks specialize in nonprofit revolving credit facilities.

CDFIs Grant timing gaps Operating bridge
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Lines for New Businesses

Businesses under 12 months old face limited options but aren't locked out. Secured lines (backed by AR or inventory), business credit cards, and fintech lenders offer revolving facilities to newer businesses with strong monthly revenue.

Secured options Business credit cards Fintech lenders
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Revolving Credit Facility

Larger revolving credit facilities — common for mid-size businesses — are structured with formal credit agreements, financial covenants, and a borrowing base formula tied to eligible receivables or inventory.

Borrowing base Financial covenants Bank facilities
FAQ

Frequently Asked Questions

What is a business line of credit and how does it work?
A business line of credit is a revolving credit facility that gives you access to funds up to a set limit. You draw what you need, pay interest only on the amount drawn, and repay on a flexible schedule. As you repay, your available credit restores — allowing you to draw again without reapplying. It works best for recurring, short-term cash flow needs rather than long-term capital investment.
How is interest calculated on a line of credit?
Interest accrues daily on the outstanding drawn balance: Daily Interest = Draw Amount × (Annual Rate ÷ 365). Your monthly charge is the sum of daily interest over the statement period, based on your average daily balance. You only pay interest on what you've drawn — not the full credit limit — which is one of the key advantages of revolving credit over a term loan.
What does revolving utilization mean?
Revolving utilization is the percentage of your available revolving credit currently in use: Total Balances ÷ Total Credit Limits. It's a major factor in credit scoring. Utilization above 30% begins to negatively impact credit scores; above 70% it can cause significant damage. Lenders also review utilization when evaluating new applications to assess how stretched your existing credit is.
Is a small business loan installment or revolving?
Most traditional small business loans — SBA loans, equipment loans, term loans — are installment loans. You receive a lump sum and repay it in fixed payments over a set period. A business line of credit is revolving — you draw and repay repeatedly up to your limit. The distinction matters for credit scoring (revolving debt affects utilization; installment does not) and for how each product aligns with your cash flow structure.
What is the difference between revolving debt and installment debt?
Revolving debt (lines of credit, credit cards) has a credit limit you can repeatedly draw from and repay. Your balance fluctuates and directly affects your revolving utilization ratio and credit score. Installment debt (term loans, mortgages, auto loans) is a fixed loan amount repaid in scheduled installments — the balance only decreases over time. Both appear on your credit report, but they impact different scoring factors.
Can nonprofits get a line of credit?
Yes. Nonprofits can qualify for lines of credit through community banks, credit unions, and CDFIs that specialize in mission-driven lending. Lenders review grant commitments, government contracts, donor history, and operating reserves rather than profit margins. Nonprofits with multi-year funding agreements and strong financial reserves typically qualify for the best terms.

Get Flexible Capital — On Your Schedule.

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