Commercial Mortgage Calculator 2025

Calculate payments for office buildings, retail spaces, warehouses and investment properties.

Emily Chen, Construction & Commercial Loans Expert
24 min readExpert
Construction LoansCommercial MortgagesInvestment Property Financing
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Commercial mortgages finance income-producing properties like office buildings, retail centers, warehouses and apartment complexes. Use this guide and calculator to estimate your monthly payment and compare loan options.

Quick answer

Commercial mortgage payments depend on loan amount, interest rate (typically 6-8% in 2025), loan term (5-25 years) and down payment (usually 20-30%). Use our calculator below to estimate your payment.

Commercial mortgage calculator

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$7,012

Estimated monthly payment

How commercial mortgages work

Commercial mortgages differ from residential loans:

  • Higher down payments: 20-30% typical (vs 3-20% residential)
  • Shorter terms: 5-25 years common (vs 15-30 residential)
  • Higher rates: 6-8% typical in 2025 (vs 6-6.5% residential)
  • Income-based qualification: Property cash flow matters more than personal income
  • Balloon payments: Many commercial loans have balloon payments after 5-10 years

Commercial mortgage rates (2025)

7.25%

Office/retail avg

7.50%

Warehouse/industrial

6.75%

Multifamily (5+ units)

Rates as of November 2025, vary by property type and borrower

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Compare rates from top commercial lenders for your property type.

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Types of commercial properties

Office buildings

Single or multi-tenant office spaces. Down payment: 25-30%, rates: 7-7.5%

Retail properties

Shopping centers, strip malls, standalone stores. Down payment: 25-30%, rates: 7-8%

Industrial/warehouse

Manufacturing, distribution, storage facilities. Down payment: 20-25%, rates: 7-7.5%

Multifamily (5+ units)

Apartment buildings, complexes. Down payment: 20-25%, rates: 6.5-7%

Commercial mortgage qualification

Lenders evaluate:

  • Debt Service Coverage Ratio (DSCR): Property income must be 1.25x+ loan payment
  • Loan-to-Value (LTV): Typically 70-80% max (20-30% down)
  • Property cash flow: Net operating income after expenses
  • Borrower experience: Track record in commercial real estate
  • Credit score: 680+ preferred, 650+ possible

Example commercial mortgage calculation

Scenario: Office building purchase

  • Purchase price: 1,500,000
  • Down payment (25%): 375,000
  • Loan amount: 1,125,000
  • Interest rate: 7.25%
  • Term: 20 years

Monthly payment: 8,783

Total interest over 20 years: 982,920

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Emily Chen - Construction & Commercial Loans Expert

Meet Emily

Construction & Commercial Loans Expert

8+ years Experience32+ ArticlesNMLS Licensed

Emily Chen specializes in complex financing solutions for construction projects and commercial real estate investments. With 8 years of experience in construction-to-permanent loans and DSCR financing, she has funded over $200 million in construction and investment property projects. Her expertise in navigating construction loan complexities and commercial underwriting makes her invaluable for real estate investors and builders.

EXPERTISE:

Construction LoansCommercial MortgagesInvestment Property FinancingDSCR Loans

KEY ACHIEVEMENT:

Funded $200M+ in construction projects

8+ years
Experience
32+
Articles
NMLS
Licensed
Expert
Certified