Commercial Lease Calculator
This commercial lease calculator shows total occupancy costs including pass-through expenses. Enter base rent and square footage to see your true monthly and annual costs instantly. Select Currency Space & Lease Details Rentable Square Feet Base Rent Rate (per sq ft/year)/sq ft/yr Lease Termyears Annual Rent Escalation% Free Rent Periodmonths Operating Expenses Base Year Operating Expenses/sq ft OpEx Escalation Rate% Tenant’s Share of OpEx% Additional Rent (CAM, Taxes, etc.)/sq ft/yr Commercial leases often include base rent + operating expenses (NNN, modified gross, or gross leases). This calculator estimates total lease cost including escalations. Summary Year-by-Year Schedule Commercial Lease Summary 📊 Total Lease Cost: — Rentable Square Feet— Base Rent Rate— Lease Term— Free Rent Months— Total Base Rent— Average Annual Base Rent— Average Monthly Base Rent— Total Operating Expenses (Tenant Share)— Total Additional Rent— Total Lease Cost (Base + OpEx + Additional)— Average Annual Total Cost— Average Monthly Total Cost— Year-by-Year Lease Schedule Year Base Rent OpEx (Tenant Share) Additional Rent Total Annual Monthly Enter lease details to view schedule. Shows year-by-year breakdown of base rent, operating expenses, and total cost. Powered by Techraxy | Commercial Lease Calculator Calculate Reset Copy Share ADVERTISEMENT Relevant Tools Creator & Reviewer Co-Founder, Techraxy Hasnain Khan is a digital tools developer and Co-Founder of Techraxy, a platform dedicated to building modern web-based calculators and utility tools. He focuses on tool optimization, website performance, and creating accessible user experiences across categories like automotive, finance, construction, and everyday utilities. View Profile Share: Rate this Tool User Ratings: ADVERTISEMENT ADVERTISEMENT Introduction to Commercial Lease Calculator Commercial leases are significantly more complex than residential leases. Beyond base rent, tenants typically pay for operating expenses, property taxes, insurance, and common area maintenance (CAM) charges. These additional costs, known as pass-through expenses or additional rent, can add 20-50% to your base rent. This Commercial Lease Calculator helps you understand your true occupancy costs. Enter your lease terms including base rent per square foot, total square footage, operating expenses, property taxes, insurance, and CAM charges. The calculator shows your total monthly and annual costs, including all pass-through expenses. Toolraxy built this calculator to help business owners, entrepreneurs, and commercial tenants budget accurately for their lease commitments. How to Use This Commercial Lease Calculator Enter the Base Rent (per square foot per year) Enter the Total Square Footage (leased space) Enter the Lease Term (in years) Enter Annual Operating Expenses (per square foot or total) Enter Annual Property Taxes (per square foot or total) Enter Annual Insurance (per square foot or total) Enter CAM Charges (common area maintenance, per square foot) Enter Annual Escalation Rate (if lease has rent increases) Click Calculate to see your total lease costs Review your total monthly and annual occupancy costs Formula Section Annual base rent: Annual Base Rent = Base Rent per Sq Ft × Total Square Footage Monthly base rent: Monthly Base Rent = Annual Base Rent ÷ 12 Operating expenses (annual): Annual Operating Expenses = Operating Expenses per Sq Ft × Total Sq Ft Property taxes (annual): Annual Property Taxes = Property Taxes per Sq Ft × Total Sq Ft Insurance (annual): Annual Insurance = Insurance per Sq Ft × Total Sq Ft CAM charges (annual): Annual CAM = CAM Charges per Sq Ft × Total Sq Ft Total annual occupancy cost: Total Annual Cost = Annual Base Rent + Operating Expenses + Property Taxes + Insurance + CAM Total monthly occupancy cost: Total Monthly Cost = Total Annual Cost ÷ 12 Total cost per square foot: Cost per Sq Ft = Total Annual Cost ÷ Total Square Footage Total lease cost over term: Total Lease Cost = Total Annual Cost × Lease Term Lease with escalations: Year 2 Rent = Year 1 Rent × (1 + Escalation Rate ÷ 100) Year 3 Rent = Year 2 Rent × (1 + Escalation Rate ÷ 100) Where: CAM = Common Area Maintenance (shared building costs) NNN = Triple Net Lease (tenants pay taxes, insurance, maintenance) Gross Lease = Rent includes most expenses (not common in commercial) Modified Gross Lease = Some expenses included, some passed through Real-Life Examples Section Example scenario: Base rent: $25 per sq ft/year Total square footage: 2,500 sq ft Lease term: 5 years Operating expenses: $5 per sq ft/year Property taxes: $3 per sq ft/year Insurance: $1 per sq ft/year CAM charges: $2 per sq ft/year Annual escalation: 3% Year 1 calculations: Annual base rent: $25 × 2,500 = **$62,500** Operating expenses: $5 × 2,500 = **$12,500** Property taxes: $3 × 2,500 = **$7,500** Insurance: $1 × 2,500 = **$2,500** CAM charges: $2 × 2,500 = **$5,000** Total annual cost: $62,500 + $12,500 + $7,500 + $2,500 + $5,000 = **$90,000** Total monthly cost: $90,000 ÷ 12 = **$7,500** Cost per sq ft: $90,000 ÷ 2,500 = **$36** (base + pass-throughs) Year 2 with 3% escalation: Year 2 base rent: $62,500 × 1.03 = **$64,375** Year 2 total cost: $64,375 + $12,500 + $7,500 + $2,500 + $5,000 = **$91,875** Year 2 monthly cost: $91,875 ÷ 12 = **$7,656** Lease comparison: Lease Type Base Rent Pass-Throughs Total Annual Total Monthly Full-Service Gross $62,500 $0 $62,500 $5,208 Modified Gross $62,500 $12,500 $75,000 $6,250 Triple Net (NNN) $62,500 $27,500 $90,000 $7,500 Clear takeaway: A 2,500 sq ft office with $25 base rent costs $90,000/year ($36/sq ft) when pass-through expenses are included. Pass-throughs add $27,500/year to your rent. Always evaluate commercial leases on a total cost basis. FAQs 1. What is a commercial lease?A commercial lease is a legally binding agreement between a landlord and a business tenant to rent commercial property such as office, retail, or industrial space. Terms, costs, and responsibilities vary significantly from residential leases. 2. What are the different types of commercial leases?The main types are: Gross Lease (landlord pays most expenses), Modified Gross Lease (shared expenses), Triple Net Lease (tenant pays all operating expenses), and Absolute Net Lease (tenant pays all expenses and maintenance). NNN is most common in commercial real estate. 3. What are pass-through expenses?Pass-through expenses are additional costs passed from landlord to tenant, including operating expenses, property
