Triple Net Lease Calculator

Calculate your NNN lease costs, monthly rent, operating expenses, and commercial real estate commissions with our free commercial lease calculator.

Property Details
Enter your commercial lease details
sq ft
years

Most commercial leases include annual rent escalations of 2-3%

Operating Expenses (NNN Costs)
Additional costs passed through to tenant (per sq ft/year)

Total Operating Expenses

$7.50/sq ft/year

Calculation Results
Your estimated commercial lease costs

Monthly Base Rent

$5,208

Monthly NNN Costs

$1,563

Total Monthly Rent

$6,771

Total Annual Rent

$81,250

Total Lease Cost (10 years)

$931,440

Effective Rate

$32.50/sq ft/year

Avg Cost per SF

$37.26/sq ft/year

What is a Triple Net Lease (NNN)?

A triple net lease (NNN lease) is a commercial real estate lease agreement where the tenant is responsible for paying all property expenses in addition to the base rent. These expenses include property taxes, building insurance, and common area maintenance (CAM) costs. This type of lease is extremely popular in commercial real estate investing because it provides landlords with predictable, passive income while transferring operational responsibilities to the tenant.

When using our NNN lease calculator, you'll see how these additional costs—often ranging from $5 to $15 per square foot annually—can significantly impact your total occupancy costs. Understanding the full picture is essential whether you're a tenant evaluating a space or an investor analyzing potential returns.

Types of Commercial Leases Explained

Gross Lease (Full Service)

The landlord pays all operating expenses. Rent is typically higher to account for these costs.

  • Property taxes: Landlord pays
  • Insurance: Landlord pays
  • Maintenance: Landlord pays
Single Net Lease (N)

Tenant pays base rent plus property taxes only. Landlord handles insurance and maintenance.

  • Property taxes: Tenant pays
  • Insurance: Landlord pays
  • Maintenance: Landlord pays
Double Net Lease (NN)

Tenant pays base rent, property taxes, and insurance. Landlord handles maintenance costs.

  • Property taxes: Tenant pays
  • Insurance: Tenant pays
  • Maintenance: Landlord pays
Triple Net Lease (NNN)

Tenant pays all operating expenses. Most common for single-tenant commercial properties.

  • Property taxes: Tenant pays
  • Insurance: Tenant pays
  • Maintenance: Tenant pays

How to Calculate Triple Net Lease Rent

NNN Lease Formula:

Total Rent = Base Rent + Property Taxes + Insurance + CAM

To calculate your NNN rent, you need to know both the base rental rate and the estimated operating expenses (often called "pass-throughs" or "triple nets"). Here's a step-by-step example:

  1. Determine the square footage: 2,500 sq ft
  2. Base rent rate: $25.00 per sq ft per year
  3. Property taxes: $3.50 per sq ft per year
  4. Insurance: $1.25 per sq ft per year
  5. CAM/Maintenance: $2.75 per sq ft per year
  6. Total rate: $25.00 + $3.50 + $1.25 + $2.75 = $32.50 per sq ft
  7. Annual rent: 2,500 × $32.50 = $81,250 per year
  8. Monthly rent: $81,250 ÷ 12 = $6,771 per month

Commercial Lease Commission Calculator

Our commercial lease commission calculator helps you estimate the real estate agent's fee for brokering a commercial lease transaction. Commissions are typically calculated as a percentage of the total lease value or annual rent.

Commission Formula:

Commission = Annual Rent × Commission Rate × Number of Years

For example, a 6% commission on a $100,000 annual rent lease equals $6,000. If the commission applies to the first 3 years, the total commission would be $18,000. This fee is typically paid by the landlord and may be split between the listing agent and tenant's representative.

Commercial Ground Lease Calculator

A ground lease (or land lease) is a long-term agreement where a tenant leases only the land and is responsible for constructing and maintaining any buildings on it. These leases typically run 50-99 years and are often structured as NNN leases.

When calculating ground lease payments, you'll typically work with a much lower base rent per square foot (often $1-5) since you're only paying for the land. However, the tenant assumes all development and operating costs. Use our calculator by entering just the land area and base rent to estimate ground lease costs.

Frequently Asked Questions

What does SF/year mean in commercial leases?

SF/year (square feet per year) is the standard unit for quoting commercial lease rates. A rate of $25 SF/year means you pay $25 per square foot annually. For a 2,000 SF space, that's $50,000 per year or approximately $4,167 per month.

Are triple net leases worth it for investors?

Triple net leases are highly valued by investors because they provide predictable, passive income with minimal landlord responsibilities. The tenant handles all property expenses, making NNN investments ideal for hands-off investors seeking stable cash flow.

How do I convert monthly rent to annual rate per SF?

To convert monthly rent to annual rate per square foot: (Monthly Rent × 12) ÷ Square Footage = Annual Rate per SF. For example, $5,000/month for 2,000 SF = ($5,000 × 12) ÷ 2,000 = $30 SF/year.

What are typical NNN costs per square foot?

NNN costs typically range from $5 to $15 per square foot annually, depending on location and property type. This includes property taxes ($2-6), insurance ($0.50-2), and CAM ($2-7). Higher-value areas generally have higher operating expenses.

Can I download my calculations?

Yes! Use the "Download Results" button in our calculator to save your calculations as a text file. This is useful for comparing different lease options or sharing with advisors.

Ready to Invest in NNN Properties?

Browse our curated selection of triple net lease properties from national credit tenants like Walgreens, Starbucks, Dollar General, and more.

Important Disclaimer

This triple net lease calculator is provided for informational and educational purposes only. Results are estimates based on the inputs provided and should not be considered financial, legal, or tax advice. Actual lease terms, operating expenses, and costs may vary. Always consult with qualified real estate professionals, attorneys, and accountants before entering into any commercial lease agreement.