APR, Factor Rates, and Fees: What Business Loan Rates Actually Mean

Every business lender leads with a rate. It's a number, it looks simple, and it's usually the least meaningful thing a lender tells you.

This isn't an accident. Business financing has no federal law requiring lenders to disclose the annual percentage rate to borrowers — not yet, not everywhere. A merchant cash advance provider can quote a 1.3 factor rate without ever telling you what that costs in APR terms. A short-term loan can advertise a "2% monthly rate" in bold and bury the origination fee in paragraph eight. A line of credit can charge a draw fee on every advance that doubles your effective cost but never appears in the interest calculation.

Understanding how rates actually work — and what the real cost of a financing product is — is the most useful thing a business borrower can do before signing anything.

Simple Interest vs. Compound Interest

The most basic rate question: is interest charged on the original principal only (simple interest), or on the declining or growing balance?

Simple interest is common in term loans and is exactly what it sounds like. A $100,000 loan at 8% simple annual interest costs $8,000 in interest per year. If the loan runs three years with equal monthly payments, total interest is $24,000 over the life of the loan — though this understates things slightly, because you're repaying principal over time and paying interest on a balance you no longer hold. We'll return to this.

Compound interest accrues on the outstanding balance, which includes accumulated unpaid interest. This is how revolving credit card debt works and why a long-running balance grows faster than most people expect. In commercial lending, compound interest is more common in lines of credit and certain specialty products. A 10% nominal annual rate compounded monthly is an effective annual rate of 10.47% — the compounding frequency matters.

Most term business loans use simple interest with an amortizing repayment schedule, which means each payment covers that period's interest charge on the remaining balance plus a portion of principal. The interest component of each payment shrinks over time as principal is paid down. This is standard and generally favorable to borrowers compared to compound structures.

What APR Actually Is

Annual percentage rate (APR) is the standardized expression of what a loan costs per year, including interest and required fees, expressed as a percentage of the loan amount. It's the one number designed to allow apples-to-apples comparison across different loan structures.

The calculation:

1. Start with the loan amount (net proceeds to borrower, after any upfront fees deducted)
2. Add all required fees the borrower must pay: origination fees, underwriting fees, closing costs, mandatory insurance, points
3. Calculate the interest charges over the full repayment schedule based on the actual payment amounts
4. Express the total of interest + fees as an annual rate on the original loan amount

The federal Truth in Lending Act (Regulation Z) requires lenders to disclose APR on consumer loans exactly this way. It's one of the most useful consumer protections in lending — a borrower comparing a 6.5% mortgage to a 7% mortgage with a different fee structure can look at the APR on each and know which one actually costs less.

The problem: TILA does not apply to commercial credit. Business loan APR disclosure is not federally required. Several states have now passed their own commercial disclosure laws (covered in the companion article to this one), but most of the market still operates without standardized rate disclosure.

This is why knowing how to calculate it yourself matters.

How Fees Change the Real Cost

A fee doesn't appear in the interest rate, but it absolutely appears in the cost.

Origination Fees

An origination fee is charged upfront — either deducted from the loan proceeds before disbursement or added to the loan balance. Common range: 1–5% of the loan amount, sometimes higher in alternative lending.

Example: You're approved for a $100,000 two-year term loan at 9% annual interest with a 3% origination fee.

• Origination fee: $3,000
• Net proceeds to you: $97,000
• Total interest on $100,000 at 9% over 24 months (roughly): ~$9,400
• Total cost of financing: $12,400
• Effective APR on $97,000 net: approximately 13.1% — not 9%

The lender may quote the 9% rate. The origination fee pushed your true cost 4+ percentage points higher. The shorter the loan term, the more a fixed origination fee inflates the effective APR — because you're paying that fee over a shorter period.

Draw Fees (Lines of Credit)

Lines of credit often charge a draw fee each time you pull funds — commonly 1–3% of the drawn amount. If you're making frequent draws, this compounds quickly.

A $200,000 line at 7% annual interest with a 2% draw fee: if you draw $50,000 four times over the year, you pay $4,000 in draw fees plus interest. The draw fees alone can match the stated interest cost.

Prepayment Penalties

These protect the lender's expected interest income if you pay off early. In fixed-rate loans, the lender priced the loan expecting a certain number of interest payments. If you repay in month 6 of a 36-month loan, they've earned far less than projected.

Prepayment penalties are typically expressed as a percentage of the outstanding balance (e.g., 3% in year 1, 2% in year 2, 1% in year 3) or as a flat fee. If you receive a windfall and want to eliminate debt, a prepayment penalty can cost thousands and eliminate the benefit of early payoff.

Always ask: what is the prepayment penalty schedule? This matters most on larger loans with longer terms.

Maintenance and Monitoring Fees

Some lenders charge monthly or annual maintenance fees, loan monitoring fees, or covenant compliance fees. These don't appear in the interest rate at all. A $100/month maintenance fee on a $150,000 loan is an additional 0.8% annualized — not nothing.

The Term Length Multiplier

Short loan terms dramatically inflate effective APR even when the stated interest rate looks low.

This is the most commonly misunderstood mechanics problem in business lending.

A 36-month loan at 12% APR costs you 12% per year of what you borrowed. A 6-month loan at 6% does not cost you 6% per year — it costs you ~12% annualized, and the 6% figure only holds if you're comparing on the same six-month basis (which no one does when comparing options).

The reason this matters: short-term lenders often quote rates per month or per period rather than annually. "2% per month" sounds modest but is 26.8% APR when compounded monthly (and 24% annualized on simple interest). "3% per month" is 42.6% APR compounded.

A useful rule: whenever a rate is quoted in anything other than annual terms, multiply to annualize it first. A monthly rate of X% ≈ X × 12% annualized (slightly understated due to compounding, but close enough to gut-check the offer).

Factor Rates and Merchant Cash Advances

Merchant cash advances don't call their cost "interest." They use a factor rate — a multiplier applied to the advance amount to determine total repayment.

A $100,000 MCA at a 1.3 factor rate means you repay $130,000. The $30,000 difference is the cost of the advance. It is not called interest, is not annualized by the provider, and is not required to be disclosed as APR in most states.

The factor rate looks modest. The APR equivalent is not.

Converting a factor rate to APR:

The formula is straightforward but the result depends entirely on the repayment term:

APR ≈ (Factor Rate – 1) ÷ Loan Term in Years

For a 1.3 factor rate repaid over 12 months:

(1.3 – 1) ÷ 1 = 30% annualized (simple interest approximation)

But most MCAs are repaid in 6–9 months through daily or weekly withholding from credit card receivables. If that 1.3 factor rate is repaid in 6 months:

(0.3) ÷ 0.5 = 60% annualized

In 4 months:

(0.3) ÷ 0.33 = 90% annualized

The factor rate didn't change. The APR swung from 30% to 90% based entirely on how fast the advance was repaid.

This is why MCA providers quote factor rates and not APR. A 1.25 factor rate repaid in 90 days is north of 100% APR. The same factor rate on an 18-month repayment is around 16% APR. Factor rates without a corresponding repayment timeline tell you almost nothing useful about cost.

The "Purchased Receivables" Framing

MCA providers don't lend money — legally, they purchase a fixed amount of future receivables at a discount. This framing sidesteps lending regulations, usury caps, and disclosure requirements in most states. The borrower sells $130,000 of future revenue for $100,000 today. The MCA provider's "fee" is not legally interest, which is exactly why it doesn't need to be disclosed as a rate.

Courts have upheld this structure in most jurisdictions. Regulators are actively working to change this; several states' new disclosure laws specifically include MCA products. Until those laws are in effect in your state, the onus is entirely on the borrower to do the conversion.

Putting It Together: Comparing Across Loan Types

The question every borrower should ask: what is my total dollar cost, and what is that cost as an annual rate?

The table above is indicative — rates shift with credit profile, time in business, industry, and market conditions. But the pattern is clear: the further a product is from conventional bank lending, the larger the gap between the stated rate and the effective APR, and the harder the lender makes it to calculate.

Why This Matters Before You Apply

The practical consequence of rate obfuscation is that borrowers often accept more expensive financing than their credit profile actually warrants. A business owner who qualifies for a 14% APR bank term loan but applies first at an online lender and accepts a 45% APR offer because the factor rate "seemed reasonable" has paid for years of marketing budget out of their own financing cost.

The comparison also affects the lender you should approach first. If you have at least two years in business, positive cash flow, and a business credit score above 680, you're likely eligible for bank or credit union products — not MCA. If you have six months in business and variable cash flow, the product set is different. Knowing your approximate credit tier before shopping determines which rate ranges are realistic for you.

FundScout structures borrower profiles around these variables specifically so that matched lenders are appropriate to your actual profile — not just whoever is buying leads at the top of a paid listing.

The One-Number Test

Before accepting any offer, calculate or ask for:

1. Total dollar cost — what is the total amount repaid minus the amount received?
2. Net proceeds — after fees deducted upfront, how much actually hits your account?
3. Repayment term — in months, not vague language like "short-term" or "flexible"
4. Effective APR — (total cost ÷ net proceeds) ÷ (term in years), or ask the lender directly

If a lender can't or won't give you all four numbers in writing before you sign, that's diagnostic information. Reputable lenders document their costs clearly. The ones who don't have a reason they're keeping the math off the page.

The financing that costs you the most is often the one that was easiest to understand at the point of sale.

Sources

1. Truth in Lending Act (TILA) / Regulation Z — 15 U.S.C. § 1601 et seq.; commercial credit expressly excluded at 15 U.S.C. § 1603(1); consumer APR disclosure requirements at 12 CFR Part 1026
2. California SB 1235 (2018) and AB 424 (2023) — commercial financing disclosure laws requiring APR-equivalent disclosure; Cal. Financial Code § 22800 et seq.
3. New York Small Business Financing Act (2020) — Annual Cost Percentage (ACP) disclosure for MCA and commercial financing; N.Y. Financial Services Law § 801 et seq.
4. SBA 7(a) loan program rates — Prime + 2.25–4.75% per SBA Standard Operating Procedures; sba.gov
5. MCA "purchased receivables" legal structure — courts have upheld purchase-of-receivables framing in most jurisdictions; see Advance America v. New York Attorney General and related state enforcement actions