Estimate your commercial loan payments and total cost
Typical: 20-30% for commercial
Typical: 6-10% for commercial
Longer than loan term = balloon payment
Monthly Payment
$0.00
Loan Amount: $0.00
Down Payment
$0.00
Total Interest
$0.00
Balloon Payment
$0.00
Total Cost
$0.00
A commercial mortgage calculator is a specialized financial tool that helps real estate investors and business owners estimate their monthly loan payments for commercial properties. It calculates payments based on property value, down payment, interest rate, loan term, and amortization period.
Commercial mortgages differ significantly from residential mortgages. They typically require larger down payments (20-30%), have higher interest rates, and use shorter loan terms with longer amortization periods. This creates a balloon payment structure where the remaining balance is due at the end of the loan term.
Understanding commercial mortgage payments is essential for real estate investors evaluating potential properties. The calculator helps determine whether a property's rental income will cover the mortgage payments and provide a positive cash flow.
Calculating commercial mortgage payments involves understanding the unique structure of commercial loans. Here's the process:
Loan Amount = Property Value − Down Payment
Monthly Payment = P × [r(1+r)^n] ÷ [(1+r)^n − 1]
Total Interest = (Payment × Amortization Months) − Loan Amount
Balloon Payment = Remaining Balance at Loan Term End
Total Cost = Down Payment + Loan Amount + Total Interest
$500,000 commercial property with 25% down payment at 7%:
| Property Value | $500,000.00 |
| Down Payment (25%) | $125,000.00 |
| Loan Amount | $375,000.00 |
| Interest Rate | 7% |
| Loan Term | 10 years |
| Amortization | 25 years |
| Monthly Payment | $2,650.88 |
| Balloon Payment | $270,450.00 |
| Total Interest | $420,264.00 |
Commercial mortgage interest rates are typically 1-3% higher than residential rates. As of 2026, commercial rates range from 6% to 10% depending on property type, location, borrower creditworthiness, and loan-to-value (LTV) ratio.
Factors affecting commercial mortgage rates include: property type (multifamily vs office vs retail), borrower credit score (typically 680+ required), debt service coverage ratio (DSCR), loan-to-value ratio, and overall market conditions.
Lower interest rates can save significant money over the loan term. A 1% rate difference on a $375,000 loan over 25 years saves approximately $60,000 in interest. Shopping around and negotiating rates is crucial for commercial borrowers.
Commercial mortgage loan terms are typically 5-10 years, significantly shorter than residential mortgages. This means the loan must be refinanced or paid off at the end of the term. The shorter term creates interest rate risk—if rates rise, refinancing becomes more expensive.
The loan term is different from the amortization period. While the term is 5-10 years, payments are calculated as if the loan would be paid over 25-30 years. This results in a balloon payment—the remaining balance due at the end of the loan term.
Borrowers typically refinance when the loan term ends, using the property's appreciated value to secure new financing. This cycle continues until the property is sold or the loan is fully paid.
Amortization is the schedule of loan payments over a specified period. For commercial mortgages, the amortization period is typically 25-30 years, while the loan term is only 5-10 years. This mismatch creates the balloon payment structure unique to commercial lending.
With a 25-year amortization and 10-year term, your monthly payments are calculated as if the loan would be paid over 25 years. However, at the end of year 10, the remaining balance (balloon payment) is due. This balloon represents the principal that hasn't been paid yet.
Understanding amortization helps you plan for the balloon payment. Many investors sell or refinance the property before the balloon comes due. Others save for the balloon payment throughout the loan term.
Commercial mortgage down payments are significantly higher than residential. While homebuyers can put down as little as 3-5%, commercial borrowers typically need 20-30% down payment. Some SBA loans allow 10% down for owner-occupied properties.
The down payment affects two key factors: loan amount and interest rate. A larger down payment means a smaller loan (lower monthly payments) and demonstrates financial commitment to lenders, potentially securing better rates.
Here's how different down payment percentages affect a $500,000 property: