Business Line of Credit: How It Works and Best Providers

Cash flow rarely arrives when you need it. A big invoice sits unpaid for 45 days, payroll is due Friday, and a supplier wants a deposit to lock in pricing. A business line of credit exists for exactly these moments: a pool of money you can draw from when you need it and ignore when you don't.

This guide explains how a business line of credit actually works, what it costs, who qualifies, and which providers are worth your time in 2026. If you're weighing it against other options, start with the broader small business loans comparison and come back once you know a line of credit fits.

What is a business line of credit?

A business line of credit is a revolving credit facility. A lender approves you for a maximum amount, say $100,000, and you can borrow any portion of it at any time. You only pay interest on the amount you actually draw, not the full limit. As you repay, that capacity frees up again, so you can borrow, repay, and re-borrow without reapplying.

Think of it as the business version of a credit card, but usually with lower rates, higher limits, and the ability to pull cash directly into your bank account.

There are two flavors:

• Secured line of credit - backed by collateral such as inventory, equipment, or receivables. Lower rates, higher limits, harder to qualify for.
• Unsecured line of credit - no specific collateral, though most lenders still require a personal guarantee. Faster to get, but rates run higher and limits are smaller.

How a business line of credit works

The mechanics are simple once you've used one:

1. You get approved for a limit. The lender sets a ceiling based on your revenue, credit, and time in business.
2. You draw funds as needed. Transfer money to your bank account through an online dashboard, often within hours.
3. You pay interest only on what you draw. Leave $80,000 of a $100,000 line untouched and you pay nothing on it.
4. You repay on a set schedule. Most online lenders use weekly or monthly automatic debits over a 6- to 12-month term per draw.
5. Your available credit replenishes. Repay a draw and that amount becomes available again - that's the "revolving" part.

This structure is what separates a line of credit from a term loan. A term loan hands you a lump sum once and you repay it on a fixed schedule. A line of credit is standing infrastructure you keep on the shelf and reach for repeatedly.

What it costs

Pricing varies far more than most borrowers expect. Well-qualified applicants can see APRs starting under 10%, while thinner credit profiles routinely land in the 40%-99% range with online lenders. Watch for:

• Interest or weekly fees on drawn amounts
• Draw fees charged each time you pull funds
• Maintenance or subscription fees (many good lenders charge none)

Always convert weekly-fee pricing into an effective APR before comparing offers - a "4.66% fee" can translate to a 35%+ APR depending on term length.

Who qualifies for a business line of credit?

Requirements depend on the lender, but online providers generally look for three things:

• Time in business: typically 6 to 12 months minimum
• Annual revenue: commonly $100,000 or more
• Personal credit score: often 600-625+

Your business credit matters too, especially for larger limits. If you haven't built a profile yet, read our business credit score guide before applying - a weak or nonexistent file is the most common reason for higher rates. Banks and SBA-backed lines demand stronger financials and more paperwork than fintech lenders, but reward you with materially lower rates.

Who offers the best business line of credit?

The "best" provider depends on your revenue, credit, and how fast you need funds. Rates and terms below are current as of 2026 and drawn directly from each lender and independent reviews - always confirm on the provider's site, since offers change.

Bluevine - best overall for established businesses

Bluevine is the most widely recommended online line of credit and a strong default choice. It offers lines up to $250,000, with rates starting around 7.8% for well-qualified borrowers and repayment over 6- or 12-month terms. There are no setup, subscription, maintenance, or termination fees. Requirements sit around a 625 credit score, 12 months in business, and roughly $120,000 in annual revenue (NerdWallet review). If you meet those thresholds, Bluevine is hard to beat on price and flexibility; it also runs a business checking product, which we weigh against Mercury and Novo separately.

Fundbox - best for newer businesses and fair credit

Fundbox lowers the bar considerably. You can qualify with as little as 3 months in business, $100,000 in revenue, and a 600 credit score, with lines up to $250,000 and funding often within two days. It charges weekly fees rather than interest - roughly 4.66% for 12-week terms and 8.99% for 24-week terms - which can convert to a 35%+ effective APR (Finder review). Great for speed and access; less ideal if you're optimizing purely for cost.

OnDeck - best for fast, larger funding

OnDeck offers a line of credit up to $200,000 and is known for same-day or next-day funding. Requirements mirror Bluevine's: a 625 FICO, 12 months in business, and about $100,000 in revenue. The tradeoff is price - OnDeck's APRs typically run high, often in the 39%-99% range (Fora Financial comparison). Use it when speed and access outrank cost.

Banks and SBA lenders - best rates, slowest process

Traditional banks and SBA-backed lines (notably the SBA CAPLines program) offer the lowest rates available, but expect stronger revenue requirements, more documentation, and a slower approval timeline measured in weeks, not hours. Worth pursuing if you have time and solid financials.

Line of credit vs. business credit card

For smaller, everyday spending, a card often makes more sense - you get rewards, an interest-free grace period, and simpler management. A line of credit wins when you need actual cash (payroll, supplier deposits, cash-flow gaps) or amounts larger than a card comfortably handles. Many owners run both, and pairing either with a solid business bank account keeps your finances clean and your applications faster to underwrite.

Is a business line of credit right for you?

A line of credit is the right tool when your need is recurring and unpredictable - seasonal swings, slow-paying clients, opportunistic inventory buys. It's the wrong tool for a one-time, fixed purchase you already know the cost of; that's what a term loan is for, just as a property you plan to renovate and resell calls for dedicated short-term property financing. And it's a poor fix for chronic unprofitability - borrowing against a leaky business only buys time, not a solution.

Conclusion

A business line of credit gives you something few financing tools do: flexible, revolving cash you pay for only when you use it. For most established businesses, Bluevine is the strongest starting point on rate and flexibility; Fundbox opens the door for newer or fair-credit owners; and OnDeck delivers speed when you need money today. Match the provider to your revenue, credit, and urgency rather than chasing a single "best."

Ready to compare options side by side? Start with our full breakdown of the best small business loans to see where a line of credit fits your funding strategy.