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Business Line of Credit Calculator

See how much a line of credit draw actually costs — and compare it side-by-side with a lump sum merchant cash advance. No email required.

Free to UseNo cost everZero Signup RequiredStart immediatelyInstant ResultsReal-time calculationsSpecialist LendersBehind the numbers

Set your credit limit and draw amount, then compare the cost of a line of credit draw against a lump sum merchant cash advance.

Start from a funded scenario

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Line of Credit Details

$
$250K$5M

Need a larger line? Talk to a specialist. Larger lines available when revenue, cash flow, and story qualify.

$
$10K$250,000
12.0%

Interest is only charged on the amount you draw, not the full credit limit.

Repayment Terms

Interest only on the drawn balance while you carry it, then the principal back at the end. How a revolving line usually gets used.

Your Selections

Limit: $250,000
Draw: $50,000 (20%)
Rate: 12.0% APR
Structure: Interest-only (revolving)
Term: 12 months, Monthly payments

Side-by-Side Comparison

Line of Credit

Draw Amount

$50,000

Interest Charged

$6,000

Total Repayment

$56,000

Payment Amount

$500.00 / month

Then $50,500 at payoff

Cost Per Day on the Drawn Balance

$16.44

Unused Credit Available

$200,000

Factor-Rate Advance — Total Dollars

Advance Amount

$50,000

Total Cost

$15,000

Total Repayment

$65,000

Payment Amount

$5,416.67 / month

Cost Difference

-$9,000 vs LOC

Your Result

$9,000saved

with a line of credit vs a merchant cash advance for this draw

Line of Credit$56,000
Factor-rate advance$65,000
See Your Line of Credit Offers →

Plus you can draw again without reapplying once you repay.

 

This calculator is for informational purposes only and does not constitute a loan offer. Actual rates, terms, and approval depend on your business profile and lending partner. We recommend applying so a funding specialist can provide expert guidance tailored to your situation.

The Math

How this calculator gets to the number

On interest-only, the cost is the balance you're carrying times the rate, divided across the year: balance × rate ÷ 365 gives the cost of holding that money for one more day. The tool charges that per payment period, then hands the principal back in the final period. Draw $300,000 at 12% and you're paying about $99 a day to hold it — which is the number worth comparing against whatever the money is buying you.

On amortizing, it's the standard payment formula — the level payment that retires the draw over the term, where each payment covers the period's interest first and the remainder comes off the balance. Early payments are mostly interest. The final one is adjusted to clear the balance exactly, which is what a real schedule does.

The comparison column prices a factor-rate advance in total dollars against the same amount. It stays in dollars on purpose: converting a factor rate to an APR makes two products look comparable on a number that only one of them actually has.

What it assumes

  • The rate is whatever you set on the slider — nothing is published or implied.
  • Interest accrues on the drawn balance only, never on the unused limit.
  • No draw fees and no unused-line fee.
  • The factor-rate column uses a 1.30 factor on the same amount.

What it does not model

  • Variable-rate resets — most lines are indexed and will move.
  • Lender-specific fees: origination, draw, maintenance, prepayment.
  • Redrawing mid-term, which is the whole point of a line and changes the carry.
  • Anything about whether you qualify, or at what rate.

Funded, In Detail

Structures We’ve Funded in Working Capital

Real transactions, written up in full — the structure, the numbers, and the timeline.

Browse every funded transaction

Understanding LOC Costs

How a Commercial Line of Credit Works

A commercial line of credit works fundamentally differently from a lump sum loan: you only pay interest on what you draw, not the full limit. Open a $1,000,000 line and draw $300,000, and you pay interest on $300,000. The remaining $700,000 sits available at no cost. Repay your draw and the credit replenishes — you can draw again without reapplying, without another credit check, and without any new paperwork. Many commercial lines are unsecured, so you tap working capital without pledging real estate or equipment as collateral. This revolving structure makes a line of credit the most flexible funding tool available to an established business.

A line of credit outperforms a lump sum loan when your capital needs are irregular or unpredictable — seasonal inventory builds, bridging gaps between invoicing and payment, covering payroll across a slow quarter, or jumping on a time-sensitive acquisition or contract. Drawing exactly what you need, when you need it, costs less than borrowing a fixed amount and paying interest on money sitting in your account. A lump sum merchant cash advance can cost less in total for a specific, known amount with a competitive factor rate — but it lacks flexibility: one disbursement, fixed payments, and a fresh application if you need more later. The calculator above shows the exact dollar difference for your scenario.

The hidden value of an open line of credit is optionality. Having a $1,000,000 line you never fully use still gives you instant access to capital for emergencies, opportunities, or cash flow gaps. The cost of maintaining an unused line is typically zero — most products charge no maintenance fees and no draw fees. Think of it as business insurance you don't pay for until you need it. When a supplier offers a discount for early payment, a competitor's equipment portfolio comes up for sale, or a client delays a $500,000 invoice — your line of credit lets you act immediately instead of scrambling.

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