Business Line of Credit Rates & Fees: What You’ll Actually Pay

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Informational only — not financial advice, and BizBee is not a lender. We don’t lend money or broker loans; always confirm rates and terms on the lender’s own page before you rely on them.

When I sat on the lender side, the single biggest mistake I watched business owners make wasn’t picking the wrong lender. It was comparing two offers on the headline number — “8.99%!” vs. “1.2 factor” — without realizing those two numbers don’t even measure the same thing. One owner would turn down a genuinely cheaper line of credit because a slicker offer looked lower, then pay thousands more over the year.

So let’s do this the way I’d walk a borrower through it across the desk: what actually drives the rate, every fee that hides in the fine print, and how to convert any offer into one number you can compare honestly.

A quick honesty note up front, because this is your money: I’m not going to make up a rate. Pricing on business credit moves with the prime rate, the lender, and your business’s profile. Where I give a range, I’ll point you to where to confirm it — usually the lender’s own page, the SBA, or the Federal Reserve. When a number needs verifying before you rely on it, I’ll say so.

What “rate” even means on a business line of credit

A business line of credit is revolving credit — like a credit card, you draw what you need, pay interest only on the outstanding balance, repay, and draw again. That structure changes how cost works compared to a lump-sum loan.

Three numbers control what you pay:

• The interest rate (or APR). What you’re charged on the money you’ve actually drawn. Most business lines price as prime rate + a margin set by your risk profile. When prime moves, your rate moves. Check the current prime rate at the Federal Reserve before you judge any quote.
• The draw structure. You pay interest only on what’s outstanding, not your full limit. An unused line still often carries a small maintenance or unused-line fee (more below).
• The fees. This is where lenders make money quietly, and where owners get surprised. Fees can dwarf the interest on a short, fast-repaid draw.

If you want the full mechanics — draw period, repayment, secured vs. unsecured — see how a business line of credit works.

Average business line of credit rates: the honest ranges

I’ll give you the shape of the market, not a fake-precise number. Verify any figure you plan to rely on against a live source — pricing in 2026 depends heavily on the prime rate.

* Illustrative figures — anchored to a prime rate of 6.75% (per Federal Reserve H.15, as of June 2026). Always verify current rates, spreads, and fees against a live source before relying on them.

A few patterns hold no matter the year:

• Banks and credit unions are usually the cheapest — and the slowest and strictest to qualify for.
• Online lenders cost more but fund faster and approve thinner files. You pay for speed and access.
• Your profile sets your margin. Time in business, revenue, and credit score move you up or down the rate ladder. If your credit is the issue, start with business line of credit for bad credit.

The fees lenders don’t put in the headline

The interest rate is the part everyone reads. The fees are the part that actually decides which offer is cheaper. Here’s the full list I’d check on any line of credit, with the question to ask before you sign.

• Origination / draw fee — charged when you open the line or each time you draw. A flat per-draw fee can make a short borrow surprisingly expensive in true-cost terms. Ask: is it one-time at opening, or every draw?
• Maintenance / monthly fee — a recurring charge just to keep the line open, sometimes even when your balance is zero. Ask: is there a monthly fee regardless of usage?
• Unused-line fee — a small percentage charged on the portion of your limit you’re not using. More common on larger bank lines. Ask: am I charged on the undrawn balance?
• Renewal / annual fee — to keep the line available year to year. Ask: what does renewal cost, and when?
• Prepayment terms — usually fine on a true line of credit, but a real trap on advances and some term products. Ask: is there any cost to paying early?
• Late / NSF fees — standard, but confirm the amounts. Ask: what triggers a penalty rate?

None of these are scary on their own. The point is that two offers with the same APR can have very different true costs once fees are in. Never compare on the rate alone.

APR vs. factor rate: the one comparison that saves you the most

This is the conversation I had most often, so it’s worth slowing down.

• APR (annual percentage rate) bakes interest and most fees into one annualized percentage. It’s built so you can compare two products fairly. Lines of credit and term loans quote in APR.
• Factor rate is a flat multiplier — e.g., “1.3.” You borrow $X and repay $X × the factor, period. Merchant cash advances quote this way. It looks small. It is not.

The reason a factor rate is so misleading: it doesn’t account for time. If you repay a 1.3-factor advance in a few months instead of a year, you’ve paid the same total dollars but over a much shorter window — which means the effective APR is dramatically higher than the factor “rate” suggests. A 1.3 factor is not “30% interest.”

How to compare two real offers (use the calculator)

Here’s the method I’d give a borrower for free. Plug each offer into our business line of credit cost calculator and compare the total dollar cost over how long you’ll actually carry the balance — not the headline rate.

The calculator concept is simple. For each offer you enter:

1. Amount you’ll draw (not your full limit — what you’ll actually use).
2. The rate (APR; or convert a factor rate first).
3. Every fee — origination/draw, monthly maintenance, unused-line, renewal.
4. How long you’ll carry the balance (the variable that exposes a factor rate).

It returns one number: total cost in dollars. That’s the only apples-to-apples comparison. A lower APR with a fat monthly fee can easily lose to a slightly higher APR with no fees on a short draw — and you’d never see it from the rate alone.

The verdict: how to actually keep your cost down

If you remember nothing else:

1. Get the true cost in dollars, not the headline rate. Run every offer through the calculator.
2. Banks and credit unions first if you can qualify — usually cheapest. Online lenders when you need speed or have a thinner file.
3. Never compare a factor rate to an APR. Convert first, or assume the factor offer is the expensive one.
4. Add up the fees before you sign. Origination, maintenance, unused-line, renewal — they decide which “rate” actually wins.

The cheapest line of credit is the one whose total cost fits how you’ll use it. Speed, access, and price are a trade-off — there’s no single best rate, only the best fit for your situation.

Frequently asked questions

Marcus Delaney is a former commercial loan officer who now writes about small-business financing. After years reviewing line-of-credit applications from the lender’s side — then borrowing as a small-business owner himself — he focuses on helping owners compare options without the jargon. More about Marcus → · This article is reviewed for accuracy by Elaine Vasquez. It is informational and independent; BizBee does not lend money or broker loans. See our editorial standards and how we evaluate lenders.