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Commercial Loan & DSCR Calculator

Calculate your commercial mortgage payment and debt service coverage ratio (DSCR) — the number lenders care about most.

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yrs
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Monthly Payment
principal & interest
Annual Debt Service
DSCR

Estimates only. Assumes a fixed-rate, fully amortizing loan. Actual terms, fees, and reserve requirements vary by lender.

Commercial mortgage payments and DSCR

This tool does two things at once: it calculates your monthly mortgage payment on an amortizing commercial loan, and — if you enter NOI — your debt service coverage ratio (DSCR), the single most important number to a commercial lender.

DSCR = Net Operating Income ÷ Annual Debt Service

How to use this calculator

Enter the loan amount, interest rate, and amortization term to see the monthly payment and annual debt service. Add the property's NOI to compute DSCR. A DSCR of 1.25x means the property generates 25% more income than it needs to cover its debt.

What DSCR do lenders require?

Most commercial lenders require a minimum DSCR of roughly 1.20x to 1.25x on stabilized income-producing real estate, though it varies by lender, asset, and market. The higher your DSCR, the more cushion — and the easier the financing.

Frequently asked questions

What is DSCR?

Debt service coverage ratio is net operating income divided by annual debt service. It measures how comfortably a property's income covers its loan payments.

Is this the same as a residential mortgage calculator?

The payment math is the same amortization formula, but commercial loans add DSCR, often shorter terms, and balloon structures — which is why DSCR is included here.

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