How Does a Business Line of Credit Work?
Apply once, get a credit limit, then draw funds on demand and only pay interest on what you've drawn. Repayments restore your available credit. Most LOCs are 6–24 month revolving terms with annual renewal.
A business line of credit works like a revolving funding account: a lender approves a maximum limit, you draw funds via ACH or wire when needed, you pay interest only on the drawn balance, and as you repay principal the credit becomes available to use again. Most LOCs are reviewed annually for renewal or limit increases.
Key takeaways
- One application, one credit limit, then draw and repay as many times as you want.
- Interest accrues only on the outstanding drawn balance, not the full limit.
- Repayment is typically weekly or monthly, principal + interest on what's drawn.
- Lines auto-renew annually; on-time payment usually triggers a limit-increase review.
- Draws hit your bank account by ACH (1 business day) or wire (same day) once approved.
Who this is for
Owners who want to understand the mechanics before applying, and want to use a LOC efficiently.
Existing LOC holders who want to know how to get a limit increase or avoid common fee traps.
What you need to qualify
| Requirement | Typical standard |
|---|---|
| Time in business | 12+ months typical |
| Monthly revenue | $15,000+ |
| Personal credit | 600+ FICO |
| Draw minimum | Often $500–$1,000 per draw |
Step 1, Approval & limit
The lender reviews your bank statements, credit, and time in business, then assigns a credit limit (commonly $10K–$500K). The limit reflects what they'll let you borrow, not what you have to borrow.
Step 2, Draws
When you need funds, you request a draw through the lender's portal or app. Most BizBee partners ACH the cash to your business checking the same or next business day. Some charge a per-draw fee (1.5%–3%); others don't.
Step 3, Repayment
Each draw typically gets a 6–24 month repayment schedule layered onto your line. You pay principal + interest weekly or monthly. As principal is paid down, that capacity becomes available to draw again.
Step 4 — Renewal & increases
Lines are reviewed annually. Clean payment history and growing revenue usually trigger an increase. Missed payments or revenue decline can trigger a limit reduction or non-renewal.
How interest is actually calculated on a LOC
Most LOCs accrue interest daily on the outstanding principal balance and bill that interest weekly or monthly. The formula is straightforward: outstanding balance × (APR ÷ 365) × days outstanding = interest charge. Example: draw $25K on a 20% APR LOC and hold the full balance for 30 days = $25,000 × (0.20 ÷ 365) × 30 ≈ $411 in interest for that month. Repay $10K mid-month and interest drops to roughly $300 for the same period because the daily balance was lower for half the month.
Online LOCs frequently use a 'per-draw amortization' model instead: each draw gets its own 6–24 month repayment schedule layered onto the line, with fixed weekly principal + interest payments rather than a true revolving statement. Both models work, but the per-draw amortization model behaves more like a series of small term loans than a traditional bank revolver. Confirm which model your offer uses before signing, it changes how flexible the LOC actually is when you draw multiple times.
Daily-debit LOCs are the third structure to watch for. A small number of online lenders bill LOC payments via daily ACH rather than weekly or monthly. The math is the same, but the cash-flow impact is sharply different, daily debit on a $50K draw can pull $200–$400 per business day out of the operating account. If a daily-debit LOC is the only product on offer, model the daily impact against your worst-week revenue before accepting.
Limit increases: what triggers them and what to do six months before
Lenders use three signals to justify limit increases: clean payment history (6+ months of on-time payments with no missed debits), revenue growth (15%+ increase in average monthly deposits since approval), and utilization patterns (drawing and repaying actively rather than carrying a stale balance near the max). Borrowers who hit all three at the annual review typically see 25%–100% limit increases without re-underwriting the full file.
The most common mistake is sitting at 80%+ utilization for months before the review. Lenders interpret persistent high utilization as financial stress, not heavy usage, and a stressed file often triggers limit reductions rather than increases. The cleaner pattern is drawing, repaying within 60–90 days, and re-drawing, which signals an active operator using the LOC as designed.
Six months before the renewal date, owners who want a limit increase should: (1) drop average utilization below 50%, (2) avoid any 30-day-late payments anywhere on personal or business credit, (3) confirm bank deposits are trending up. These three changes typically move a $50K limit to $75K–$100K at renewal without any new application paperwork.
LOC versus credit card versus term loan — when each one wins
A LOC is the right tool for known, recurring, short-term needs where you'll draw, repay, and draw again across the year. A business credit card wins on rewards, fraud protection, and very small recurring purchases under $5K but typically prices 5–10 APR points higher than a comparable LOC and offers far lower limits. A term loan wins when you have a single, large, fully-deployed need with a known payback horizon, there's no benefit to revolving access if you'll just hold the full balance.
Practical rule: if the use of funds is one-time and over $25K, take a term loan. If the use is recurring or under $5K per transaction, use a business credit card. Everything in between is LOC territory.
How to decide if this is right for you
Five checks decide whether you'll use a LOC well, or burn cash on fees.
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1
Confirm the draw schedule fits your cash cycle
Match draws to known inflow timing (e.g., draw the day before payroll, repay when receivables clear). Don't draw 'just in case' and pay interest on idle cash.
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2
Know your payment cadence before signing
Bank LOCs bill monthly. Online LOCs often bill weekly; a few bill daily. Daily-debit LOCs squeeze cash flow more than the APR suggests.
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3
Track utilization to stay under 50%
Lenders review utilization at renewal. Carrying 80%+ utilization for months signals stress and can trigger a limit reduction.
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4
Plan for the annual renewal
Six clean payment months + revenue growth = limit-increase candidate. Missed payments or shrinking deposits = limit cut. Treat the LOC like an asset you steward.
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5
Don't stack draws faster than you repay
Each draw layers a new repayment schedule. Stacking too fast turns the revolving LOC into a forced-term loan with higher pricing than an actual term loan.
When this makes sense
- Your business has recurring short-term funding needs.
- You'd rather pre-approve capital than scramble when a need pops up.
When to be careful
- If you carry a near-max balance for months, the all-in cost rivals a term loan with worse flexibility.
- Daily-debit LOCs can squeeze cash flow more than expected — confirm the payment schedule before signing.
How this plays out in practice
E-commerce brand timing Q4 inventory
Situation: DTC brand with $120K/mo summer revenue scaling to $400K in Q4; needs $150K of inventory pre-purchased in September.
Recommendation: LOC. Pre-approve $200K limit, draw $150K in September, repay from Q4 sales by January. Total interest cost is roughly 1/4 of holding the same balance year-round on a term loan.
Trucking company waiting on broker payments
Situation: Fleet operator with 45-day broker pay cycles needs $40K rolling for fuel and payroll between settlements.
Recommendation: LOC. Draw weekly against pending settlements, repay as broker payments arrive. Pair with factoring if the gap grows beyond 60 days.
Owner tempted to draw the full limit
Situation: Owner approved for $100K LOC at 24% APR considering drawing all $100K to 'have cash on hand' for the next year.
Recommendation: Don't. Idle cash sitting in your account at 24% APR is a $24K/year cost. Draw only when you have an identified use within 30 days.
Seasonal retailer using LOC for inventory cycles
Situation: Retailer with summer-heavy revenue draws $80K in April for inventory build, pays interest-only May–July, sweeps balance to zero in August.
Recommendation: Ideal LOC use case. Total interest cost (≈4 months × $80K × ~12% APR / 12) ≈ $3,200 vs. a comparable term loan that would charge interest on the full balance for 12 months.
Get matched to a LOC that fits how you'll actually use it
Free, soft-pull pre-qualification through BizBee Funding.
Frequently asked
Common questions
Glossary
Terms worth knowing
- Utilization
- The drawn balance as a percentage of the approved limit. Lenders use it as a stress signal at renewal. Healthy utilization is under 50%.
- Reconciliation (LOC)
- Some LOCs allow temporary payment reduction if revenue drops. Less common than on MCAs; check your agreement before signing.
- Maturity vs renewal
- Maturity is when each draw's repayment schedule ends. Renewal is the annual review of the overall line. They are not the same date.
- Cross-collateralization
- Some lenders secure a LOC with all business assets via UCC-1. This can complicate future borrowing from other lenders.
- Unused-line fee
- An annual fee (typically 0.25–0.50% per OCC commercial-lending data) some bank LOCs charge on the undrawn portion of the credit limit.
- Paid-to-zero requirement
- A clause in many bank LOCs requiring the borrower to bring the outstanding balance to $0 for at least 30 consecutive days per year, confirming the LOC is being used for short-term working capital rather than long-term debt.
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