Business Loan Calculator

Calculate business loan payment, fees, payoff time, total interest and a complete amortization schedule.

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Business loan calculator with fees and amortization

Enter loan amount, fixed rate, term, origination fee and optional extra principal. HitEquals reports scheduled and planned payments, net proceeds, payoff time, interest and every monthly balance.

Editorial checkBusiness-loan term context checked against SBA guidance; APR and fee distinction checked against CFPB definitions. Flagship guide, worked checks and page-specific explanatory diagram reviewed September 13, 2026.Updated September 13, 2026Read the publication standard

Inputs used by this calculator

Business Loan Calculator uses the fields below. The starting values reproduce the page example; replace them with values from the same units and time period before using the result.

Field-by-field reference for Business Loan Calculator.
InputStarting exampleAccepted valueHow it is used
Loan amount (USD)150,0001 to 1000000000000Supplies the loan amount (usd) quantity used by the published equation or result breakdown.
Annual interest rate (%)8.50 to 100Supplies the annual interest rate (%) quantity used by the published equation or result breakdown.
Loan term (years)51 to 50Supplies the loan term (years) quantity used by the published equation or result breakdown.
Origination fee (%)20 to 50Supplies the origination fee (%) quantity used by the published equation or result breakdown.
Extra principal each month (USD)00 to 1000000000Supplies the extra principal each month (usd) quantity used by the published equation or result breakdown.
Payments reduce a loan through interest and principalInterest is calculated from the remaining balance; the rest of each payment reduces principal.principal balanceequal payments
Payments reduce a loan through interest and principalInterest is calculated from the remaining balance; the rest of each payment reduces principal.

Business loan payment

A fixed monthly payment amortizes principal over the contracted term. Extra principal shortens the actual schedule when the agreement permits prepayment.

Payment formula

The standard installment formula uses the monthly rate and number of payments.

payment=P×r/(1−(1+r)^−n)

Origination fee and proceeds

When a fee is deducted from disbursement, the business receives less cash than the face amount but repays the full principal. The calculator shows both values.

Interest rate and APR

APR is broader than the note rate because eligible fees can affect borrowing cost. The displayed approximate fee-adjusted APR assumes the fee is withheld upfront and scheduled payments continue for the original term.

Compare offers beyond payment

Review collateral, guarantees, variable-rate terms, prepayment charges, covenants and total cash received. SBA-backed products are still originated and serviced by participating lenders.

Build an apples-to-apples loan comparison

Use the same requested cash amount and payoff horizon for each offer. Compare net proceeds after fees, required payment, total interest, modeled payoff month and restrictions such as collateral or prepayment charges. A smaller payment can reflect a longer term rather than a cheaper loan.

Cash-flow coverage and affordability

The calculator measures loan mechanics, not whether the business can safely support the payment. Compare the scheduled payment with conservative operating cash flow and test lower-revenue or higher-cost scenarios before committing capital.

Loan-cost measures

Payment alone does not show the full financing cost.
MeasureMeaning
Note rateInterest applied to balance
Origination feeUpfront financing charge
Net proceedsCash after modeled fee
Total interestInterest across actual payoff

Business loan offer checklist

Record these terms from each lender document before comparing offers.
TermWhy it mattersCalculator treatment
Amount financedPrincipal repaidEntered loan amount
Origination feeReduces usable proceeds or raises costModeled as withheld upfront
Note rateDetermines monthly interestFixed annual rate
TermChanges payment and total interestWhole years
Prepayment termsMay change benefit of extra principalMust be checked separately

Frequently asked questions

Does extra payment reduce the scheduled payment?

No. It shortens payoff while the scheduled installment remains unchanged.

Is the origination fee financed?

This model treats it as withheld from proceeds while the full face amount is repaid.

Is APR exact?

It is an approximation for the modeled cash flows; official disclosures and fee treatment can differ.

Does this support balloon loans?

No. It models level monthly amortization.

Are SBA loans made directly by SBA?

Programs vary, and participating lenders generally make and service SBA-guaranteed loans.

Does a longer term make a loan cheaper?

It usually lowers the required payment but can increase total interest.

Does this decide whether my business can afford the loan?

No. Compare payments with conservative cash-flow forecasts and lender requirements.

What to keep in mind

Assumes a fixed rate and monthly payments. Variable rates, balloon payments, prepayment fees, guarantees and lender covenants are excluded.

Results are rounded for display in US format, with money in dollars and cents; CSV exports keep full calculation precision. This is a calculation summary, not an official certificate.

Sources and references

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