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Mortgage Payment Calculator

Calculate principal and interest payments for commercial mortgages. Includes origination fees and closing cost analysis.

$

Total mortgage principal

%

Annual interest rate

yrs

Years to amortize

Download Excel Version
Use this calculator offline in Excel with full formulas
.XLSX
Formula
M = P[r(1+r)^n]/[(1+r)^n-1]
Pro Tips
1.The payment is principal and interest on the amount, rate, and amortization you enter.
2.Taxes, insurance, and reserves are separate.
Related Calculators
Amortization Schedule→LTV Calculator→DSCR Calculator→Reverse LTV→

Commercial Mortgage Payments: What NNN Investors Need to Know

A commercial mortgage finances the purchase of income-producing real estate. Unlike residential mortgages, commercial loans are underwritten based on the property's income rather than the borrower's personal income. The lender evaluates the net operating income, DSCR, and loan-to-value ratio to determine the maximum loan amount and rate.

For triple net properties, the mortgage payment is the primary expense the investor bears after collecting rent. Since the tenant covers taxes, insurance, and maintenance, the monthly cash flow is effectively the NNN rent minus the mortgage payment minus any asset management costs.

Closing Costs on Commercial Mortgages

Budget 2-5% of the loan amount for closing costs. Typical fees include origination (0.5-1.5%), appraisal ($3,000-$8,000), environmental report ($2,000-$5,000), legal ($3,000-$10,000), title insurance, and survey costs. These are upfront costs that affect your total cash investment and initial cash-on-cash return.

Compare against the loan payment calculator for a simpler payment-only calculation, or use the refinance analysis tool to model a refi scenario.

Frequently Asked Questions

What credit score is needed for a commercial mortgage?

This page does not store a credit-score minimum. The payment it calculates uses the rate, amount, and term you enter.

Can you get a 30-year commercial mortgage?

Enter the amortization and term from the quote you have. If the term is shorter than the amortization, the unpaid balance is still owed at the end.

What are commercial mortgage rates in 2026?

This page does not publish a rate range. The 30-year mortgage series on the homepage is the FRED MORTGAGE30US print, which is a residential survey, not a commercial quote.

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