Useful for payment modeling
Compare the monthly payment with cash genuinely available after payroll, rent, inventory, taxes, and existing debt.
Calculator
This calculator solves for the missing loan variable, builds the amortization, and shows the payment, total interest, payoff horizon, and optional debt-service coverage estimate.
Compare the monthly payment with cash genuinely available after payroll, rent, inventory, taxes, and existing debt.
Term length and amortization can change business strain just as much as the nominal rate.
A calculator can model the debt. It cannot decide whether term, SBA, LOC, or equipment finance is the better product family.
Select the field you want solved, then enter the other three. The calculator updates the answer, total repayment, total interest, and the amortization schedule automatically.
Select the field to solve for. The other three values must describe a realistic loan structure.
Use the requested or quoted principal balance.
Annual nominal rate, excluding fees. This is not APR. Leave it as the solved field to estimate the implied nominal rate.
Use decimal years when needed. Example: `2.50` for a 30-month term.
Usually the most useful solve target when a borrower wants to know if the debt actually fits.
Use cash available after operating expenses and existing debt—not gross revenue. This enables the coverage estimate.
Model limitation: Calculations assume level monthly payments and monthly compounding. They exclude fees, closing costs, variable rates, balloon payments, prepayment terms, and provider-specific requirements.
| Month | Payment | Principal | Interest | Balance |
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Interpret the result
The payment still has to compete with payroll, rent, inventory, taxes, and any existing debt. If the monthly number only works in a best-case month, the structure is probably too aggressive.
Advisor lens
Clear use of proceeds, stable monthly cash flow, and a repayment horizon that does not force the business into renewal mode are usually good signs for a term structure.
If the payment only works in peak months, or the total interest starts crowding the project return, I would compare LOC, SBA, equipment finance, or a smaller request.
Recent financials, current debt schedule, and a credible explanation of how the capital improves the business usually matter more than trying to maximize the ask.
Nicolas Lescalier is a commercial finance broker and Senior Funding Advisor at Premium Merchant Funding, not a direct lender. Financing is offered through third-party providers, is subject to underwriting and approval, and may not be available in every state or for every business. Terms, costs, and timing vary by provider and applicant. Website calculators and examples are educational estimates, not offers or commitments to fund.