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  1. Tools
  2. /Commercial real estate
  3. /Net operating income

Net operating income calculator.

Enter the rent, the vacancy, other income and the running costs. See the net operating income at once, and where the income goes.

Your property

$600,000
$0$2,000,000
Rent if every unit were let all year.
5%
0%50%
Share of rent you expect not to collect.
$20,000
$0$200,000
Parking, laundry, fees and similar income.

Operating expenses per year

Total operating expenses$110,000

Your result

Net operating income

$480,000

=$590,000−$110,000

Operating expenses are 18.64% of effective gross income. Effective gross income is $590,000: rent $600,000, minus $30,000 vacancy and credit loss.

Where the income goes

Share of effective gross income. Each bar uses the same scale.
Net operating income$480,00081.36%
Property taxes$48,0008.14%
Management$23,6004.00%
Maintenance and repairs$18,0003.05%
Insurance$14,0002.37%
Utilities$6,4001.08%
Other expenses$00.00%
Total operating expenses$110,00018.64%

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Working through rent rolls and expense statements? Book a call and we will show how that can be automated.

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Client ready report

One page: your inputs, the net operating income, where the income goes and the formula.

Enter your numbers first.

We use your email to send you this report. Privacy

How it is computed

  • Effective gross income=Potential gross rent−Vacancy and credit loss+Other income

    The income the property can really collect in a year.

  • Net operating income=Effective gross income−Operating expenses

    What is left of that income after the costs of running the property.

  • Operating expense ratio=Operating expensesEffective gross income

    The share of the collected income that running the property takes.

Terms follow Appraisal Institute usage: potential gross income, effective gross income, net operating income. Net operating income is a difference, so it is set as an equation and not as a fraction.

What counts as an operating expense.

Operating expenses are the recurring costs of running the property: property taxes, insurance, maintenance and repairs, management and utilities. Mortgage payments, income taxes, depreciation and capital improvements are not.

Why break the expenses down.

One total tells you the net operating income. The breakdown tells you which line takes the most income, so you know where to look first when the number is lower than expected.

Questions.

Is net operating income the same as profit?
No. It is the income the property produces from operating it, before financing, income taxes and capital spending.
Why is debt service excluded?
Debt service depends on how the buyer finances the property, not on the property itself. Leaving it out keeps the figure comparable between properties. Cash on cash return is the measure that includes it.
Where do capital expenses go?
A large one off cost such as a new roof is not a yearly operating cost, so it stays out. Some tools list a reserve for replacement as an expense. Say which approach you used when you share the figure.

Next in the sequence

  • Cap rate calculator

    Turn the income into a rate and test a price.

  • Cash on cash return calculator

    See the return on the cash you put in.

Ready to put these numbers to work?

Share your numbers and we’ll tell you honestly whether AI moves the needle for your team.

Book a Strategy Call
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