Net Operating Income Calculator

Calculate net operating income for any rental or commercial property. See profitability, cap rate, and expense breakdown instantly. Free NOI calculator.

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Gross Income
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Operating Expenses
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Net Operating Income (NOI) = Effective Gross Income - Total Operating Expenses. NOI is a key metric for real estate investment analysis.

NOI Summary
💰 Net Operating Income (NOI): —
Gross Rental Income—
Vacancy Loss—
Other Income—
Effective Gross Income (EGI)—
Property Management—
Maintenance & Repairs—
Property Taxes—
Insurance—
Utilities—
HOA Fees—
Capital Expenditure Reserve—
Other Expenses—
Total Operating Expenses—
Net Operating Income (NOI)—
Monthly NOI—
NOI Breakdown
CategoryAmount% of EGIStatus

Enter property details to view NOI breakdown.

Shows the complete income and expense breakdown used to calculate NOI.

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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.

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Introduction to Net Operating Income Calculator

Net operating income, or NOI, is one of the most important metrics in real estate investing. It measures the annual income a property generates after deducting all operating expenses, but before mortgage payments and income taxes. NOI is used to calculate cap rate, evaluate property profitability, and determine a property’s value. This Net Operating Income Calculator helps you determine the NOI for any rental or commercial property. Enter your gross rental income, vacancy rate, and operating expenses such as property management, insurance, taxes, maintenance, and utilities. The calculator shows your NOI, expense breakdown, and profitability metrics. Toolraxy built this calculator to help real estate investors evaluate properties consistently and make informed investment decisions.

How to Use This Net Operating Income Calculator

            1. Enter the Gross Annual Rental Income (total rent collected)

            2. Enter the Vacancy Rate (percentage of time units are vacant)

            3. Enter Annual Operating Expenses (property taxes, insurance, maintenance)

            4. Enter Property Management Fees (percentage of rent or flat fee)

            5. Enter Annual Insurance Cost (property insurance premium)

            6. Enter Annual Property Taxes (local tax assessment)

            7. Enter Annual Maintenance Costs (repairs and upkeep)

            8. Enter Annual Utilities (if paid by owner)

            9. Click Calculate to see your net operating income

            10. Review the expense breakdown and NOI margin

Formula Section

Gross annual rental income:

Gross Rental Income = Monthly Rent × 12

Vacancy allowance:

Vacancy Allowance = Gross Rental Income × (Vacancy Rate ÷ 100)

Effective gross income:

Effective Gross Income = Gross Rental Income – Vacancy Allowance

Total operating expenses:

Total Expenses = Property Taxes + Insurance + Maintenance + Management Fees + Utilities + Other Expenses

Net operating income (NOI):

NOI = Effective Gross Income – Total Operating Expenses

NOI margin:

NOI Margin = (NOI ÷ Effective Gross Income) × 100

Cap rate (with property value):

Cap Rate = (NOI ÷ Property Value) × 100

Cash flow (with financing):

Annual Debt Service = Monthly Mortgage Payment × 12
Cash Flow = NOI – Annual Debt Service

Where:

  • NOI = Net Operating Income (income after operating expenses)

  • Effective Gross Income = Income after vacancy allowance

  • Operating Expenses = Costs to run the property (not including mortgage)

  • Cap Rate = Return based on property value

Real-Life Examples Section

  • Example scenario:

    • Monthly rent: $4,200

    • Annual gross rental income: $50,400

    • Vacancy rate: 5%

    • Property taxes: $4,500

    • Insurance: $1,800

    • Maintenance: $2,500

    • Property management: $4,032 (8% of rent)

    • Utilities: $1,200

    • Other expenses: $500

    Calculations:

    • Vacancy allowance: $50,400 × 5% = **$2,520**

    • Effective gross income: $50,400 – $2,520 = $47,880

    • Total expenses: $4,500 + $1,800 + $2,500 + $4,032 + $1,200 + $500 = $14,532

    • Net operating income: $47,880 – $14,532 = $33,348

    • NOI margin: ($33,348 ÷ $47,880) × 100 = 69.7%

    Cap rate (if property value = $350,000):

    • Cap rate: ($33,348 ÷ $350,000) × 100 = 9.5%

    Cash flow (with financing):

    • Annual debt service (if financed): $21,240

    • Cash flow: $33,348 – $21,240 = $12,108 per year

    Clear takeaway: This property generates $33,348 in annual NOI, which is a 9.5% cap rate. After debt service, you keep $12,108 in annual cash flow. Positive NOI and cap rate indicate a solid investment.

FAQs

1. What is net operating income (NOI)?
Net operating income is the annual income a property generates after operating expenses but before mortgage payments and income taxes. It is a key indicator of a property’s profitability and is used to calculate cap rate.

2. What expenses are included in NOI?
Operating expenses include property taxes, insurance, maintenance, property management fees, utilities, repairs, and other costs to run the property. Mortgage payments and capital expenditures are not included.

3. What expenses are excluded from NOI?
Excluded expenses include mortgage payments (interest and principal), income taxes, depreciation, and capital expenditures (major improvements). These are financing and tax-related, not operating costs.

4. What is the difference between NOI and cash flow?
NOI is income after operating expenses before debt service. Cash flow is NOI minus mortgage payments. Cash flow represents the actual cash you receive after paying the mortgage.

5. What is a good NOI?
A good NOI depends on the property type and market. Generally, positive NOI indicates profitability. A higher NOI means higher property value and potential returns. Compare NOI to similar properties in your market.

6. How is NOI used in real estate valuation?
NOI is used to calculate cap rate and property value. Property value = NOI ÷ Cap Rate. A higher NOI increases property value at the same cap rate.

7. What is vacancy rate and why does it matter?
Vacancy rate is the percentage of time a property is vacant. It affects effective gross income. A higher vacancy rate reduces income and NOI. This calculator includes vacancy in the calculation.

8. Is NOI before or after taxes?
NOI is before income taxes. Taxes are excluded from NOI because they vary by owner. NOI measures the property’s operational performance independent of the owner’s tax situation.

Disclaimer

This Net Operating Income Calculator is provided for educational and planning purposes only. Results are based on standard real estate formulas and the numbers you enter. Actual NOI depends on accurate expense tracking, market conditions, and property performance. This tool does not constitute financial or real estate investment advice. Consult a licensed real estate professional or financial advisor before making investment decisions. Toolraxy is not responsible for any actions taken based on these calculations.

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