Business Loan Calculator · Practical guide
Business Loan APR vs Interest Rate
The interest rate prices the money; the APR prices the deal. Fees are the difference between them.
At a glance
Two Numbers, Two Meanings
The interest rate is the annual cost of borrowing the principal — it alone determines your monthly payment. The APR (annual percentage rate) rolls the interest rate plus upfront costs like origination fees into one annualized figure. When a loan has no fees, the two numbers are identical. The moment fees enter, APR climbs above the rate, and the gap between them is the true cost of the fine print.
Interactive tool
Business Loan Calculator
Enter your own values, then compare the result with the examples below.
The Gap in Dollars
On a $100,000 loan at 7.5% over 5 years, the payment is $2,003.79 and total interest is $20,227.69. Add a 2% origination fee and nothing about the payment changes — but you receive only $98,000 while repaying $120,227.69. The calculator's estimated APR captures this: 8.36%, not 7.5%.
How Fees Widen the Gap
| Scenario ($100K, 7.5%, 5 yr) | Estimated APR |
|---|---|
| No fee | 7.50% |
| 1% origination fee | 7.93% |
| 2% origination fee | 8.36% |
| 5% origination fee | 9.69% |
| 2% fee on a 2-year term | 9.51% |
Notice the last row: shortening the term from 5 years to 2 nearly doubles the fee's impact on APR, because the same $2,000 cost is amortized over 24 payments instead of 60.
How the Estimate Is Computed
The calculator finds the APR by solving for the rate at which the present value of all your monthly payments equals the cash you actually receive (loan amount minus fee). That rate, annualized, is the APR — the single number that lets you compare a low-rate-plus-fee offer against a higher-rate-no-fee one on equal footing. When two offers have the same APR, prefer the one with the structure that fits your cash flow better.
Frequently Asked Questions
Can APR ever be lower than the interest rate?
Not on a standard loan. APR equals the rate when there are no fees and exceeds it whenever upfront costs exist. Lender credits can theoretically push it below, but that is rare in business lending.
Which number sets my monthly payment?
The interest rate, applied to the full loan amount. APR is a comparison metric — it describes total cost but does not change the payment schedule.
Does APR include every possible cost?
No. APR typically reflects upfront fees like origination charges, but not contingent costs such as late fees, prepayment penalties, or annual service fees. Read the agreement for those.
Why do short-term loans show such high APRs?
Fixed upfront fees are annualized over the loan's life. A fee spread over 2 years inflates APR far more than the same fee spread over 10, which is why fee-heavy short-term financing looks especially expensive.