A business line of credit is a revolving credit facility that gives your company a set borrowing limit you can draw from at any time, repay, and draw from again — and you only pay interest on the balance you actually use, not the full limit. Think of it as a financial cushion that sits open in the background: when a slow week hits, a big invoice lands late, or inventory needs restocking before a busy season, you pull exactly what you need, then the available limit refills as you pay it back. That reusable, pay-for-what-you-use structure is what separates a line of credit from a term loan, which hands you one lump sum and starts charging interest on the entire amount from day one.
Lines of credit come in two flavors — secured (backed by collateral like receivables or equipment) and unsecured (backed by your business's creditworthiness and cash flow). They are one of the most flexible tools in small-business financing, but qualifying often means strong credit, seasoned time in business, and documented revenue. For owners who can't clear those bars or need cash faster than a bank line can move, a revenue-based advance is a common alternative, and we cover exactly when each one wins below.
Key takeaways
- A business line of credit is revolving: you draw, repay, and reuse the limit, paying interest only on what you actually use.
- Unlike a term loan, an untouched line generally accrues no interest — though maintenance, annual, or per-draw fees may still apply.
- Traditional lines favor businesses with 1–2+ years in operation, solid credit, and documented revenue.
- Most lines carry variable interest tied to a benchmark, so your carrying cost moves with the market.
- Best used for short-term, self-liquidating needs — inventory, payroll gaps, receivables — not chronic losses or one-time large purchases.
- When credit is thin or timing is urgent, a revenue-based advance underwrites on bank deposits and revenue, with FICO around 500+, minimums near $10,000, and funding often in 24–48 hours.
- No responsible funder guarantees approval for any financing product.
How a Business Line of Credit Actually Works
Once approved, you receive a maximum credit limit — say, $50,000 for example. That amount sits available until you need it. When you draw $15,000 to cover payroll during a slow month, you now have $35,000 still available and you begin paying interest only on the $15,000 outstanding. As you repay that balance, your available limit climbs back toward the full $50,000, ready for the next need. This is the revolving mechanic, and it's the whole point.
A few mechanics that trip owners up:
- Draw period vs. repayment. Many lines have a draw period during which you can pull funds freely, followed by a repayment window. Revolving lines from banks often renew annually on review.
- Interest accrues on the balance, not the limit. An untouched line generally costs nothing in interest, though some lenders charge maintenance or draw fees.
- Variable rates are common. Most lines carry variable interest tied to a benchmark, so your carrying cost moves with the market.
- Minimum payments plus interest. You'll typically owe at least interest and a small principal portion each cycle on any outstanding balance.
Because the facility refills, a line of credit rewards discipline: draw for short-term, self-liquidating needs (inventory you'll sell, receivables you'll collect) and pay it down quickly so the capacity is there when the next gap opens.
Line of Credit vs. Term Loan vs. Revenue-Based Advance
These three tools solve different problems. A term loan is for a defined, one-time expense with a known cost — buying a $120,000 machine, for example. A line of credit is for recurring, unpredictable working-capital gaps. A revenue-based advance (often structured as a merchant cash advance) trades a slice of future revenue for fast capital, with approval driven by bank deposits rather than credit score.
| Feature | Line of Credit | Term Loan | Revenue-Based Advance |
|---|---|---|---|
| Structure | Revolving, reusable | Lump sum, fixed | Lump sum against future revenue |
| Pay interest on | Only what you draw | Full amount from day one | Fixed factor, not traditional interest |
| Best for | Cash-flow smoothing | One-time large purchase | Fast cash, thin/weak credit |
| Typical approval driver | Credit + time in business + revenue | Credit + financials | Bank deposits + revenue |
| Speed to funding | Days to weeks | Days to weeks | Often 24–48 hours |
| Repayment | Monthly, variable | Fixed monthly | Daily/weekly from deposits |
The honest summary: a line of credit is usually the cheaper, more flexible tool if you can qualify and can wait. When credit is thin or timing is urgent, a revenue-based advance is the realistic fallback — approval leans on your deposit history and revenue rather than a high FICO.
What It Costs and How Lenders Price It
Pricing a line of credit is more than the headline rate. The real carrying cost is a stack:
- Interest on the drawn balance — usually variable, tied to a benchmark index plus a margin set by your risk profile.
- Draw fees — a small percentage some lenders charge each time you pull funds.
- Maintenance / annual fees — a flat charge to keep the line open whether you use it or not.
- Renewal review — banks often re-underwrite annually, and your limit or rate can change.
From an underwriter's seat, the cheapest line of credit on paper isn't always the cheapest in practice. A low rate with a per-draw fee can cost more than a slightly higher rate with no draw fee if you pull funds often. Always model your actual draw pattern, not the best-case one. And weigh the cost against the alternative: capital you can't get, or get too late, has an infinite effective cost when it means missing payroll or a supplier discount.
Who Qualifies — and What Underwriters Look For
Bank and online lenders underwrite a line of credit on a familiar set of factors. The stronger each one, the higher your limit and the lower your rate:
- Time in business. Most lenders want at least one to two years; the longest, cheapest lines favor seasoned businesses.
- Personal and business credit. Unsecured lines lean heavily on credit scores. Strong credit unlocks the best pricing.
- Revenue and cash flow. Consistent, documented revenue tells the lender you can service draws.
- Collateral (for secured lines). Receivables, inventory, or equipment can raise your limit or lower your rate.
- Existing debt load. Lenders check how much of your revenue already services other obligations.
If you fall short on time in business or credit, you're not out of options — you're in the segment where revenue-based financing does its best work. A revenue-based advance marketplace typically approves on bank deposits and revenue with FICO from around 500, minimums near $10,000, and funding in 24–48 hours. It's not a line of credit, but for many owners it's the capital that's actually attainable this week. No responsible funder guarantees approval — anyone who does is a red flag.
Decision Framework: When a Line of Credit Fits, and When to Choose an Advance
Match the tool to the problem. Here's the framework we use with owners.
A business line of credit works best when:
- Your need is recurring and unpredictable — seasonal inventory, payroll gaps, waiting on receivables.
- You have the credit and time-in-business to qualify for a real limit at a fair rate.
- You can wait days to a few weeks for approval and setup.
- You'll draw, repay, and reuse — you value the revolving capacity, not just one shot of cash.
- You want to keep carrying costs low by paying interest only on what you use.
Consider a revenue-based advance instead when:
- Your credit is thin or below bank thresholds but your deposits and revenue are solid.
- You need funds in 24–48 hours, not next month.
- You've been declined for a traditional line and need a path that underwrites on cash flow.
- The need is a defined, time-sensitive opportunity (a bulk-inventory discount, an urgent repair) rather than an open-ended cushion.
- Daily or weekly repayment tied to your deposits fits your revenue rhythm better than a monthly bank payment.
Avoid a line of credit when you'd use it as long-term financing for a one-time purchase (a term loan is cleaner), or when the annual/maintenance fees on an idle line outweigh the convenience. And avoid any financing when the draw doesn't generate more than it costs to carry.
A Realistic Example: Seasonal Cash-Flow Gap
Consider a specialty retailer that does most of its business in Q4. Here's how the same $30,000 need looks across two tools. Figures are for example only and simplified to show the mechanic, not a quote.
| Scenario | Line of Credit | Revenue-Based Advance |
|---|---|---|
| Amount needed | $30,000 (drawn from a $50,000 limit) | $30,000 |
| Approval basis | Credit + 2 yrs in business + revenue | Bank deposits + revenue, FICO 500+ |
| Time to funds | ~1–2 weeks | ~24–48 hours |
| What you pay on | Interest on the $30,000 drawn | Fixed factor cost on the advance |
| Repayment rhythm | Monthly, variable rate | Small daily/weekly from deposits |
| After you repay | Limit refills to $50,000, reusable | Facility closes; reapply if needed |
| Best if the retailer… | Qualifies and can wait | Needs cash now or has thin credit |
The retailer with strong credit and time to spare takes the line — cheaper carrying cost and the capacity refills for next season. The retailer who was declined by the bank, or who spotted a can't-wait inventory buy, takes the advance because it's the capital that's actually available in time. Neither is universally "better"; the right answer is whichever one you can access when the cash-flow gap is open.
How to Use a Line of Credit Without Getting Into Trouble
The revolving structure that makes a line of credit powerful is the same thing that can quietly bury a business. Operator rules of thumb:
- Draw for self-liquidating needs. Pull for things that generate cash to repay the draw — inventory you'll sell, a job you'll invoice — not for covering structural losses.
- Pay it down, don't ride the balance. A line that stays maxed becomes de facto long-term debt at a variable rate. Cycle it down between needs.
- Don't confuse available limit with cash you can afford. The limit is capacity, not a signal that borrowing is wise.
- Watch the renewal. Banks re-underwrite; a slow year can shrink your limit right when you need it. Keep your financials clean.
- Keep a real backstop. If your line gets pulled or you can't qualify for one, know your fast-capital fallback in advance so a cash-flow gap never becomes an emergency.
Used with discipline, a line of credit is one of the best working-capital tools a small business can hold. Used as a crutch for chronic shortfalls, it accelerates the problem. If you're comparing revolving options against cash-flow-based funding, our overview of how revenue-based advances work lays out the trade-offs side by side.
Frequently asked questions
What is a business line of credit in simple terms?
It's a revolving pool of money your business is approved to borrow from, up to a set limit. You draw what you need, pay interest only on the amount you've used, and as you repay, that capacity refills so you can use it again. It's built for recurring cash-flow needs rather than one-time purchases.
How is a line of credit different from a term loan?
A term loan gives you one lump sum and charges interest on the full amount from day one, repaid over a fixed schedule. A line of credit is reusable — you draw only what you need, pay interest only on the drawn balance, and reuse the limit as you repay. Loans suit one-time expenses; lines suit ongoing, unpredictable gaps.
Do I pay interest on the whole credit limit?
No. You pay interest only on the balance you've actually drawn. An untouched line generally accrues no interest, though some lenders charge maintenance, annual, or per-draw fees whether or not you use it. Always confirm the full fee stack, not just the rate.
What credit score and time in business do I need?
Traditional lines typically want one to two years in business, consistent documented revenue, and solid credit — the best pricing goes to strong-credit, seasoned businesses. If you fall short, revenue-based advance marketplaces underwrite on bank deposits and revenue instead, often accepting FICO around 500+ with minimums near $10,000.
How fast can I get a line of credit?
Bank and online lines usually take several days to a couple of weeks to underwrite and set up. If you need capital in 24–48 hours, a revenue-based advance is generally faster because approval leans on your bank deposits and revenue rather than a full credit workup.
When should I choose a revenue-based advance over a line of credit?
Choose the advance when your credit is thin or below bank thresholds but your deposits and revenue are strong, when you need funds within 24–48 hours, or when you've been declined for a traditional line. Choose the line of credit when you can qualify, can wait, and want reusable, lower-cost revolving capacity.
Is a business line of credit guaranteed if I apply?
No legitimate lender guarantees approval for a line of credit or any other financing. Approval depends on your credit, revenue, time in business, and existing debt. Be cautious of any offer promising guaranteed funding — that's a red flag, not a feature.
Can I lose access to my line of credit?
Yes. Many lenders re-underwrite lines periodically, and a weak year, rising debt load, or missed payments can shrink or freeze your limit — sometimes right when you need it most. That's why it's smart to keep your financials clean and know your fast-capital fallback in advance.
