Business Loan Calculator

How to use the business loan calculator

This calculator estimates the payment and full borrowing cost of a fixed-rate, fully amortizing business loan. It is designed for comparing term-loan offers where payments are equal and the balance declines to zero. The calculation includes the timing of compounding, payment frequency, and three common fee treatments. It does not model a revolving line of credit, a merchant cash advance, an interest-only period, a balloon payment, a variable rate, or a prepayment penalty.

Enter the quoted rate correctly

What information do you know? Select the form in which the lender supplied the quote. Choose nominal interest rate when the contract states an annual rate before fees. Choose APR when the annual percentage rate is known but the underlying note rate is not. Choose both when you want to compare the lender’s advertised APR with the APR produced by the entered fees. Choose periodic payment when you know the installment and want to infer the approximate rate.

Nominal interest rate is the annual rate used to accrue interest on the financed balance. A higher rate increases each payment and total interest. Enter the stated rate, not a decimal fraction: enter 8 for 8%, not 0.08. APR is an annualized measure that incorporates financing charges and the amount of usable cash received. APR is particularly useful when two offers have different fee structures. The Consumer Financial Protection Bureau’s APR explanation provides additional context, although commercial-loan disclosure rules can differ from consumer-credit rules.

Compound frequency determines how the nominal rate converts into the effective rate for each payment period. Monthly compounding is common, but some contracts quote quarterly, semiannual, or annual compounding. Payment frequency controls the number of installments per year. More frequent payments usually reduce the balance sooner, but the precise effect depends on how the quoted rate compounds. Do not assume that “bi-weekly” means twice per month; this calculator uses 26 payments per year.

Define the amount and term

Loan amount is the face amount requested before fees are deducted or added. It is required and must be positive. Borrowing more raises the payment and total interest almost proportionally when the rate and term stay unchanged. Loan term is the contractual repayment horizon. You may enter years or months, and changing the unit converts the current value rather than merely relabeling it. A longer term normally lowers the periodic payment but increases total interest because the balance remains outstanding longer. A shorter term does the opposite.

When reviewing affordability, compare the payment with conservative operating cash flow rather than optimistic revenue. Also consider seasonality, taxes, payroll, inventory requirements, and existing debt service. The U.S. Small Business Administration describes major loan programs and eligibility considerations on its business loans overview.

Model fees according to their cash-flow treatment

Prepaid fee is paid at closing and is not added to principal. It reduces the net funds available and raises APR, but it does not accrue interest. Loaned fee is added to the financed balance. Because it remains outstanding, it raises both principal and interest. Origination fee is entered as a percentage of the face loan amount. The repayment choice determines whether it is deducted from proceeds, financed, or paid separately at closing.

• Deduct from loan proceeds: the financed balance excludes the origination fee, but the business receives less cash.
• Add to financed balance: the business receives the face amount, while the fee is added to principal and accrues interest.
• Pay separately at closing: the fee does not accrue interest, but it is an immediate cash outflow and increases the effective borrowing cost.

A common mistake is to compare only nominal rates while ignoring fees. Another is to treat a financed fee as though it were paid upfront; that understates interest because the financed fee itself accrues interest. Request a lender’s complete fee schedule and confirm whether fees are refundable or charged again after refinancing.

Interpret each result

Periodic payment is the scheduled installment at the selected frequency. A low payment is not automatically cheaper; it may reflect a longer term. Cash received is the amount disbursed after any origination deduction, before separately paid closing fees. Financed balance is the amount on which interest accrues, including loaned or financed fees. These two figures can differ materially.

Total interest is the sum of interest across the schedule. Total scheduled payments is the sum of all installments. Total finance charge measures the economic cost above net usable funds and includes interest plus applicable fees. A zero finance charge occurs only when the rate and all fees are zero. Calculated APR annualizes the periodic internal rate of return implied by the net funds available and the payment stream. Effective APR compounds that periodic rate over a year, so it is normally slightly higher than the nominal APR when there is more than one payment per year.

When both APR and interest rate are supplied, the calculator reports any gap between the entered APR and the APR implied by the listed fees. A positive unexplained fee estimate suggests that the advertised APR includes costs not entered above. A negative gap can indicate inconsistent assumptions, different payment timing, excluded charges, or a disclosure convention that does not match this model.

Read the charts and schedule

The finance charge donut separates interest, prepaid fees, loaned fees, and origination fees. The shares are based on the same model values shown in the table and Excel workbook. If every cost component is zero, the chart is replaced with an empty-state message rather than a decorative ring. The timeline plots remaining balance and cumulative interest. Early payments usually contain more interest because interest is calculated on a larger balance; later payments contain more principal.

The amortization schedule shows the exact payment, principal reduction, interest expense, remaining balance, and cumulative interest for every period. The annual view aggregates payment rows into year-sized groups. Small differences from a lender statement can arise from day-count conventions, payment dates, rounding rules, or daily interest accrual. Review the promissory note for the controlling terms. The Federal Deposit Insurance Corporation’s Money Smart for Small Business materials provide broader financial-management education for business owners.

Use scenarios rather than a single estimate

Test a base case, a higher-rate case, and a shorter-term case. Observe whether the business can still cover payments when revenue is delayed or margins fall. Compare the reduction in payment from extending the term with the additional total interest. Also test each fee treatment because an offer that preserves cash at closing may create a higher financed balance. The exported Excel workbook records the current assumptions, outputs, cost breakdown, and full schedule so the scenario can be reviewed or compared with a lender proposal.

This tool provides an educational estimate, not personalized financial, tax, or legal advice. Actual loan costs depend on contract language, lender methods, payment dates, compounding conventions, and applicable law.