🏦 Commercial Mortgage Calculator

Estimate Your Commercial Property Loan Payments

Securing financing is a critical step in any commercial real estate transaction. Our Commercial Mortgage Calculator empowers you to model your loan payments with precision. Whether you're purchasing an office building, a retail space, or a multifamily property, this tool helps you forecast cash flow and compare financing options to make a smarter investment decision.

Commercial Mortgage Calculator

Calculate payments and analyze financing options for commercial real estate properties including office buildings, retail spaces, industrial properties, and multifamily apartments. This calculator helps you understand debt service coverage ratio (DSCR), loan-to-value ratio (LTV), and total investment costs for commercial property acquisitions.

Property & Loan Details

$
%
Typical: 20-35% for commercial properties
%
Typical range: 5-9% based on property type
May differ from loan term (balloon payment)

Income & Operating Expenses

$
Total rental income before expenses
%
Expected vacancy percentage
$
Property taxes, insurance, maintenance, management
$
Capital improvements and replacements

Closing Costs & Fees

%
Typically 0.5-2% of loan amount
$
Appraisal, legal, title, inspection, etc.

Analysis Options

Lender's minimum debt service coverage ratio

Understanding Commercial Mortgages

Commercial mortgages differ significantly from residential mortgages. They typically have higher interest rates, larger down payment requirements, shorter terms, and are underwritten based on the property's income-generating potential rather than the borrower's personal income.

Debt Service Coverage Ratio (DSCR)

DSCR is the most important metric for commercial mortgage lenders. It measures the property's ability to pay the mortgage from its operating income.

  • Formula: DSCR = Net Operating Income (NOI) ÷ Annual Debt Service
  • Minimum Requirements:
    • 1.20 - 1.25x for most lenders (property generates 20-25% more income than needed for debt service)
    • 1.25 - 1.35x for stronger loans
    • Below 1.0x means the property cannot cover its debt from income alone
  • Example: If NOI is $150,000 and annual debt service is $120,000, DSCR = 1.25x
Loan-to-Value Ratio (LTV)

LTV measures the loan amount as a percentage of the property value. Commercial lenders typically require lower LTV ratios than residential lenders.

  • Typical LTV Requirements:
    • Multifamily: 75-80% LTV (20-25% down)
    • Office/Retail: 65-75% LTV (25-35% down)
    • Industrial: 70-75% LTV (25-30% down)
    • Special Purpose: 50-65% LTV (35-50% down)
  • Formula: LTV = Loan Amount ÷ Property Value × 100
Net Operating Income (NOI)

NOI is the foundation of commercial real estate valuation and lending decisions.

  • Formula: NOI = Effective Gross Income - Operating Expenses
  • Effective Gross Income: Gross rental income minus vacancy losses
  • Operating Expenses Include:
    • Property taxes
    • Insurance
    • Property management fees
    • Maintenance and repairs
    • Utilities (if owner-paid)
    • Reserves for replacements
  • NOI Does NOT Include:
    • Mortgage payments (debt service)
    • Capital improvements
    • Depreciation
    • Income taxes
Balloon Payments

Most commercial mortgages have balloon payments, where the loan term is shorter than the amortization period.

  • Example: 10-year loan term with 25-year amortization
    • Monthly payments calculated based on 25-year amortization
    • After 10 years, remaining balance is due as balloon payment
    • Typically requires refinancing at that time
  • Purpose: Allows lenders to reassess terms periodically while keeping payments affordable
Commercial Property Types
  • Multifamily (5+ units): Apartments, typically easiest to finance with best terms
  • Office Buildings: Class A, B, or C based on location, age, and amenities
  • Retail: Shopping centers, strip malls, standalone stores
  • Industrial: Warehouses, manufacturing facilities, distribution centers
  • Mixed-Use: Combination of residential and commercial spaces
  • Hotel/Hospitality: Hotels, motels, resorts
  • Special Purpose: Gas stations, car washes, churches, etc.
Interest Rates and Terms
  • Interest Rates: Typically 1-3% higher than residential mortgages (5-9% range)
  • Factors Affecting Rates:
    • Property type and condition
    • Location and market conditions
    • Borrower's experience and credit
    • DSCR and LTV ratios
    • Loan amount and term
  • Common Terms: 5, 7, 10, 15, or 20 years with 20-30 year amortization
Closing Costs

Commercial mortgage closing costs are typically 3-6% of the loan amount:

  • Loan origination fee: 0.5-2% of loan amount
  • Property appraisal: $2,000-$10,000+
  • Environmental assessment: $2,000-$5,000
  • Property inspection: $500-$2,000
  • Title insurance and search
  • Legal and escrow fees
  • Survey costs
Commercial vs. Residential Mortgages
  • Underwriting: Based on property income vs. borrower's personal income
  • Documentation: Requires rent rolls, operating statements, tax returns
  • Recourse: May be recourse (personal guarantee) or non-recourse
  • Prepayment: Often has prepayment penalties or lockout periods
  • Amortization: May not fully amortize (balloon payment)
Disclaimer

This calculator provides estimates for educational and planning purposes only. Actual loan terms, rates, and requirements vary by lender, property type, location, and borrower qualifications. Commercial mortgage underwriting involves complex analysis beyond these calculations. Always consult with commercial mortgage professionals and conduct thorough due diligence before making investment decisions.

Understanding the Commercial Mortgage Calculator

The Commercial Mortgage Calculator is a practical tool that helps property investors, developers, and business owners estimate financing details for commercial real estate loans. It takes into account property value, down payment, loan term, interest rate, and income metrics to produce key figures such as monthly payment, loan-to-value (LTV), debt service coverage ratio (DSCR), and capitalization rate (Cap Rate). This calculator simplifies the financial evaluation process and supports better decision-making before applying for a loan.

Key Formulas Used

1. Loan Amount: Loan Amount = Property Value − Down Payment

2. Monthly Payment: Monthly Payment = [r × P × (1 + r)n] ÷ [(1 + r)n − 1]

Where:
P = Loan Amount
r = Monthly Interest Rate
n = Total Number of Payments

3. Net Operating Income (NOI): NOI = Effective Gross Income − Total Operating Expenses

4. Debt Service Coverage Ratio (DSCR): DSCR = NOI ÷ Annual Debt Service

5. Loan-to-Value (LTV): LTV = (Loan Amount ÷ Property Value) × 100%

6. Capitalization Rate (Cap Rate): Cap Rate = (NOI ÷ Property Value) × 100%

7. Cash-on-Cash Return: Cash-on-Cash Return = (Annual Cash Flow ÷ Total Investment) × 100%

How to Use the Calculator

Using the Commercial Mortgage Calculator is straightforward. It provides clear insights into financing structure, cash flow, and investment performance. Follow these steps to use it effectively:

  • Step 1: Enter the Property Value and your expected Down Payment Percentage.
  • Step 2: Input the Interest Rate, Loan Term, and Amortization Period.
  • Step 3: Provide the Gross Annual Income, Vacancy Rate, Operating Expenses, and Reserves.
  • Step 4: Add any additional costs, such as Origination Fees and Closing Costs.
  • Step 5: Click the “Calculate” button to generate results. You will see details such as your monthly payment, DSCR, Cap Rate, and Cash-on-Cash Return.
  • Step 6: Optionally, view the Amortization Schedule and Cash Flow Analysis to explore repayment and performance over time.

Benefits of Using the Calculator

The Commercial Mortgage Calculator offers a practical advantage for anyone assessing real estate investments or loan opportunities. Here’s how it can help:

  • Loan Planning: Understand how changes in loan terms or interest rates affect monthly payments and total costs.
  • Investment Analysis: Evaluate property performance using metrics such as DSCR, LTV, Cap Rate, and Cash-on-Cash Return.
  • Risk Assessment: Check if your property income comfortably covers loan payments.
  • Decision Support: Compare multiple loan scenarios before approaching lenders.
  • Transparency: Gain clear insight into where your money goes—down payment, closing costs, and ongoing expenses.

Frequently Asked Questions (FAQ)

What is a Commercial Mortgage?

A commercial mortgage is a loan used to purchase or refinance property intended for business use, such as office buildings, retail spaces, or multifamily complexes. The property itself usually serves as collateral for the loan.

What is DSCR and why is it important?

The Debt Service Coverage Ratio (DSCR) measures the property’s ability to generate enough income to cover loan payments. A DSCR of 1.25 or higher typically indicates that the property’s income exceeds its debt obligations, making it more attractive to lenders.

What is the difference between loan term and amortization period?

The loan term is how long the borrower has before repaying the loan in full or refinancing, while the amortization period determines the schedule of payments that gradually reduce the loan balance. A shorter loan term than amortization period often leads to a balloon payment at the end.

How accurate are the results?

The calculator provides highly useful estimates based on the data entered. However, actual loan terms and approval depend on lender evaluations, credit profiles, and market conditions.

Can this calculator be used for residential mortgages?

This tool is intended for commercial real estate analysis. While some formulas may apply to residential loans, factors like DSCR and Cap Rate are specific to investment or business properties.

Conclusion

The Commercial Mortgage Calculator is an effective way to assess financing options, estimate returns, and understand cash flow performance before making a property investment. By combining essential loan and income metrics, it helps users make informed, confident financial decisions with clarity and precision.

More Information

Key Inputs for Your Calculation:

To get an accurate payment estimate, you will need the following information:

  • Property Value & Loan Amount: Enter the property's purchase price and your down payment to determine the loan amount. Commercial loans often have a lower Loan-to-Value (LTV) ratio than residential mortgages.
  • Interest Rate & Loan Term: Input your expected annual interest rate and the loan term, which is the period over which you will make payments (e.g., 10, 15, or 20 years).
  • Amortization Period: This is the length of time it would take to pay off the loan in full. For commercial loans, the amortization period (e.g., 25 years) is often longer than the loan term, resulting in a balloon payment at the end of the term.

Our calculator will provide you with a detailed monthly payment schedule and the final balloon payment amount, if applicable.

Frequently Asked Questions

What is the difference between Loan Term and Amortization Period?
The Loan Term is the length of time you have to make payments before the loan is due. The Amortization Period is the time over which the loan is scheduled to be paid off. If the amortization is longer than the term (e.g., a 10-year term with 25-year amortization), a large balloon payment will be due at the end of the 10-year term.
What is a typical down payment for a commercial loan?
Down payments for commercial real estate loans are typically higher than for residential properties, usually ranging from 20% to 35% of the purchase price, depending on the property type, lender, and borrower's financial strength.
Does this calculator include property taxes and insurance?
No, this calculator estimates the principal and interest portion of your loan payment only. You should budget separately for other property expenses like taxes, insurance, and maintenance (often referred to as T&I).

About Us

We are dedicated to providing transparent and powerful financial tools for the commercial real estate sector. Our calculators are designed to simplify complex financial structures, giving investors the clarity they need to navigate property financing with confidence.

Contact Us