Commercial Debt & Alternative FinancingCalculator4 min readUpdated September 2026

Merchant Cash Advance APR: How to Convert a Factor Rate to Real Cost

To find the true cost of a merchant cash advance (MCA), convert the factor rate into an annualized percentage that reflects how quickly you repay. For example, a factor rate of 1.35 on a $50,000 advance means repaying $67,500, and if that's collected in daily debits over about six months, the effective annual rate is well over 100 percent.

Factor rates don't look like interest, which is why they are easy to misjudge. This guide shows the conversion, a worked example and what to do if payments are already straining your cash.

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What is a factor rate, and how is it different from interest?

A factor rate is a multiplier on the advance. You receive the advance and agree to repay the advance times the factor. The fee is the difference. There's no rate per year and no reduction of the fee as you repay, so paying early usually doesn't save money.

An interest rate charges for the time the money is outstanding, and the amount owed changes as principal is repaid. A factor rate is fixed at the start, and the annualized cost depends on how fast you repay. The same factor over three months costs far more per year than over twelve months. Legally, an MCA is often structured as a purchase of future receivables, not a loan, so some lending rules may apply differently. Some states require certain disclosures, so check the rules where you operate and ask an attorney about your contract.

How do you convert the factor rate into an APR?

Use these steps, with a spreadsheet:

  1. Compute the repayment: advance times factor rate.
  2. Find the number of payments: term in business days if debits are daily.
  3. Divide the repayment by the number of payments to get the debit amount.
  4. Compute the internal rate of return on the cash flows: the advance is received once, and each debit is paid.
  5. Annualize: multiply the periodic rate by the number of periods per year (about 252 business days for daily debits).

Say you take a $50,000 advance at a 1.35 factor rate, repayable in 126 business-day debits. In this example, the repayment is $67,500 and each debit is about $536. In this example, a simple calculation shows a cost of $17,500 on $50,000, or 35 percent, over half a year, which annualizes to 70 percent. But because you repay a bit each day, the average amount you owe is much lower than $50,000, and in this example the internal rate of return is about 0.5 percent per business day, or roughly 125 percent a year on a nominal basis.

Always compute the version based on cash flows, since it reflects what you pay for the money you actually have.

How does the repayment speed change the answer?

Because the fee is fixed, faster repayment raises the annualized cost. Say the same 1.35 factor is repaid over about 12 months instead of six. In this example, the annualized cost is lower, but you pay $17,500 for a full year of tight cash instead of half a year. Neither is cheap.

Also watch for:

  • Fees on top of the factor: origination, underwriting, ACH or legal fees, which raise the cost.
  • Daily or weekly debits: they reduce cash every day, including slow ones.
  • Split withholds: a percentage of card sales taken at processing, which makes the payment depend on sales.
  • Stacking: taking a second advance to pay the first, which multiplies cost.

Compare any offer with the same math for a term loan or an SBA loan, using the SBA 7(a) payment calculator, and see debt service coverage to check whether your cash flow can cover it.

What should you do if MCA payments are straining your cash?

Act before you miss a payment, because default terms can be severe. Steps to consider:

  1. List every advance: balance, debit amount, frequency and contract terms.
  2. Build a weekly cash forecast that includes the debits so you can see the real shortfall.
  3. Ask the funder about reducing or restructuring payments. Some will reduce debits or extend the term for a fee.
  4. Look for lower-cost refinancing, such as a term loan, SBA loan or line of credit, and use the proceeds to pay the advance if the contract allows it and the cost is lower overall.
  5. Talk to an attorney experienced in MCAs before you stop payments or change your bank account, because contracts may include security interests, guarantees and other remedies.

More options are covered in merchant cash advance restructuring and consolidation. Don't stack a new advance on top without calculating the combined debit.

How can you protect operating cash from daily debits?

Keep payroll and tax cash in a separate account that funders don't debit, and give the funder access only to the account named in the contract. Changing banks or blocking debits without legal advice can breach the agreement, so speak to an attorney first.

For future financing, compare the effective cost of each option side by side, including revenue-based financing, and check buying a business with an SBA loan if you're financing an acquisition. Set a rule that you'll accept financing only when the effective annual rate has been calculated, the debits fit in your forecast and someone besides the founder has reviewed the terms.

Executive Capability Standard

What Good Looks Like

A sound MCA decision converts the factor rate into an effective annual rate from the debit schedule, includes every fee and checks the debits against weekly cash flow.

Building The Capability (5-Stage Skill Ladder)

1. Learn:Learn how factor rates, debit frequency and fees combine into an effective annual cost.
2. Do Manually:Compute repayment, debit amount and internal rate of return in a spreadsheet for each offer.
3. Delegate:Ask a finance lead or accountant to review offers and model the debits in your weekly forecast.
4. Automate:Track balances and debits automatically in your forecast so stacking and shortfalls are flagged early.
5. Buy:Engage an attorney or restructuring adviser if payments already exceed what your cash flow can carry.

How to Get Started

Disclosure: We may earn a commission if you buy through some links on this page. It doesn't change what we recommend.

Frequently Asked Questions

What is the difference between an interest rate and a factor rate?

An interest rate is charged per year on the outstanding balance, so the total cost depends on time. A factor rate is a fixed multiplier on the advance, so the total cost is set at the start and doesn't fall if you pay early. To compare, convert the factor rate to an effective annual rate using your repayment schedule.

Can an MCA funder freeze your bank account?

The contract usually gives the funder the right to debit your account, and some include security interests or remedies if you default. Whether they can freeze funds depends on the contract, the state and any court action. Talk to an attorney before missing payments or changing accounts.

How can a company get out of an MCA debt trap?

Start by listing all advances and modeling the daily or weekly debits in your cash forecast. Then talk to funders about restructuring, look for lower-cost refinancing and consider legal and financial advice. Avoid taking a new advance to pay an old one unless the math shows a lower total cost.

Is a high APR always a sign of a bad deal?

Not automatically. A short, quick-payback use of funds can justify a high annualized rate if the return on the spend is larger. But high APRs leave little room for error, so test the plan with slower sales and confirm you can cover the debits in your weakest week.

About the numbers

This guide doesn't quote a sourced benchmark. Figures in it are estimates or general guidance, so check them against your own numbers.

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