Commercial Real Estate Mortgage Payment Calculator

If the estimated monthly payment aligns with your projected net operating income (NOI), you have a strong starting point—your next step is to prepare a debt service coverage ratio (DSCR) analysis to see if the property’s cash flow satisfies lender requirements. Keep in mind that your actual rate depends heavily on your credit profile, property type, and the loan-to-value (LTV) ratio specific to your 2026 commercial mortgage refinance or acquisition.

What changes your rate / answer

Commercial lending isn't standardized like residential mortgages. Minor adjustments to the inputs can change your monthly output significantly:

• Loan-to-Value (LTV) Ratio: A lower LTV (e.g., 60% vs. 75%) typically lowers your interest rate because the lender has less capital at risk.
• Property Type: Multifamily property financing often secures lower rates than office or retail assets due to perceived stability. If your asset class is 'special use,' expect a rate premium.
• Amortization Period: While you may have a 5-year or 10-year term, commercial loans often amortize over 20–25 years. Shortening this period increases your monthly payment but reduces total interest expense.
• Recourse vs. Non-Recourse: Non-recourse commercial loans offer asset protection but often come with higher interest rates than full-recourse options.

How to use this

Use this tool to build a baseline for your underwriting before you contact best commercial mortgage lenders or hard money sources.

• Input your total loan amount: Ensure this figure accounts for both the purchase price and any immediate capital improvements you plan to finance.
• Set the interest rate: For 2026, conservative underwriting suggests running scenarios at 7.0% to 8.5% to account for market volatility.
• Adjust for interest-only (IO) periods: If you are negotiating an IO period (common in bridge loan commercial real estate), note that your payment will be strictly interest. If you want to see the full P&I payment, do not use an IO rate.
• Check your DSCR: Once you have the monthly figure, divide your monthly Net Operating Income by this result. Lenders generally look for a ratio above 1.25x for traditional permanent loans.

Bottom line

This calculator provides an estimation tool for your internal underwriting; actual commercial real estate loans in 2026 will be heavily dictated by your property's cash flow performance and the lender's current cost of capital.