Does Net Operating Income Include Taxes? Property Tax In, Income Tax Out
Does net operating income include taxes? Property tax yes, income tax no. See which taxes sit above the NOI line, with the numbers from a $500,000 rental.
By the NOICalculator.org team
Does net operating income include taxes? Property taxes yes, income taxes no. NOI counts the property tax bill as an operating expense and stops before income tax, so one tax sits above the line and the other sits below it.

The trouble is that the word tax does two different jobs here. A property tax bill is a cost of owning the building, and every owner pays it. Income tax depends on your bracket, your depreciation schedule and the rest of your return, none of which belong to the property. The five step NOI formula keeps the first and drops the second.
Which taxes sit above the NOI line
Property taxes, special assessments and local taxes charged on the real estate itself are operating expenses inside NOI. Income tax, capital gains tax, depreciation recapture and entity level franchise tax stay out. The test is one question: would a different buyer, with a different tax return, still get this bill?
| Tax | In NOI? |
|---|---|
| Property tax and special assessments | Yes, operating expense |
| City business license or gross receipts tax on rent | Yes, when the owner pays it |
| Payroll tax on on-site staff | Yes, part of payroll |
| Transfer or stamp tax at closing | No, a purchase cost |
| Federal and state income tax | No, below the line |
| Capital gains tax and depreciation recapture | No, these follow a sale |
| LLC franchise tax or annual fee | No, belongs to the entity |
Property taxes: always an operating expense in NOI
Property tax is charged by the county or city against assessed value. It is the clearest case of an operating expense: recurring, required to hold the property, and owed whether the building is full or empty.

Here is the site’s default property. A $500,000 house rents for $4,000 a month, $48,000 a year. At 5% vacancy, effective gross income is $45,600. Taxes are $6,000, insurance is $2,500, and 18% of collected income, $8,208, covers maintenance, reserves and management. Operating expenses total $16,708, so NOI is $28,892, or $2,407.67 a month. That is a 5.78% cap rate on the price.
Drop that $6,000 tax line and NOI reads $34,892 instead. At a 6.5% market cap rate, the single missing line inflates the apparent value by about $92,000.
Effective rates vary widely. Depending on the state and county they run from well under 1% of value to more than 2%, and how property tax is assessed differs by jurisdiction too. Get the real figure from the assessor rather than a rule of thumb. For a sanity check on the rest of the column, see what average operating expenses look like.
Income tax: why it never touches net operating income
NOI is a property level number, measured before income tax, and it has to be. Income tax belongs to the owner, not the building.
Two buyers can pay the same price for the same house and owe completely different amounts of tax on it. If income tax came out of NOI, the same property would have two different NOIs and two different cap rates, and no one could compare it to anything.
The common mistake looks like this. Take the $28,892 NOI and subtract a 24% income tax hit. You report $21,958 and a 4.39% cap rate on a house that actually produces 5.78%. Nothing about the property changed. Worse, your real tax bill is figured after mortgage interest and depreciation, so the 24% haircut is not even the right arithmetic.
For the short answers, see whether NOI comes before or after taxes and what gets left out of NOI. Your rental income, depreciation and interest all land on your tax return instead, which the IRS covers in Publication 527.
Transfer, franchise and business taxes on rental income
These are the ones that trip people up, because they are neither property tax nor income tax.
Transfer tax, sometimes called stamp duty or a deed tax, is charged once when title changes hands. It is a closing cost and part of your basis. Keep it out of NOI.
Franchise tax or an annual LLC fee is a charge on your entity. Hold it below the NOI line so your figure describes the building and not your holding structure.
A business license tax or gross receipts tax on rent is different. Some cities charge it on rental income, and the owner pays it to keep operating the property. That one goes in the expense column. A handful of states and cities also apply a sales or similar tax to commercial rent, and the lease decides whether the tenant pays it through.
Payroll tax on on-site staff is an operating expense as well, bundled with wages.
What a reassessment does to NOI after a sale
Many counties reassess when a property sells, and the new assessed value often tracks the price you paid. A seller’s $6,000 bill may be based on an assessment set years ago.

Say the reassessment lifts taxes on the $500,000 house to $7,500, or 1.5% of the price. Operating expenses rise to $18,208 and NOI falls to $27,392, which is $2,282.67 a month. The cap rate goes from 5.78% to 5.48%, and at a 6.5% cap rate the value the income supports drops by roughly $23,000.
Rules differ by state. Some cap annual increases, some reset on transfer, and some carry exemptions that end when the owner changes. Ask the assessor what your bill will be, then put that number in the property taxes line.
How to tax-adjust an NOI a seller hands you
- Add back anything below the line. If income tax, depreciation or mortgage interest was subtracted, put it back.
- Replace the seller’s property tax figure with your own estimate after reassessment.
- Pull out transfer tax and other closing costs. Those are basis, not operations.
- Add missing vacancy, management and reserves, since those often disappear from a pro forma.
- Recompute the cap rate on the price you are paying, not the seller’s asking price.
Check it with the calculator
The free NOI Calculator on the home page keeps the two taxes apart for you. Property taxes get their own field in the expense column, and there is no field for your income tax rate, because NOI does not have one. Enter the $500,000 house and you get $28,892. On the simple tab, $50,000 of gross income, 5% vacancy and $17,500 of expenses give an NOI of $30,000.
Frequently asked questions
Does net operating income include taxes?
It includes some and excludes others. Property taxes and special assessments are operating expenses, so they come out of income before you reach NOI. Income tax, capital gains tax and depreciation recapture are not operating expenses and never reduce NOI. The dividing line is whether a different buyer with a different tax return would still owe the bill.
Does NOI include property taxes?
Yes. The property tax bill is a standard operating expense and belongs in the expense column every time. In the site's default property, a $500,000 house with $48,000 of scheduled rent and 5% vacancy, the $6,000 tax line is part of the $16,708 of operating expenses that bring NOI to $28,892. Leave it out and NOI is overstated by $6,000.
Is NOI calculated before or after income tax?
Before. NOI measures what the property earns, not what the owner keeps. Income tax depends on your bracket, your depreciation schedule, your mortgage interest and your other income, none of which belong to the building. Subtracting it would make two owners of the same property report different NOI, which defeats the point of the measure.
Do transfer taxes count as an operating expense in NOI?
No. Transfer or stamp tax is charged once when the deed changes hands. It is a cost of buying, usually added to your cost basis, not a cost of running the property this year. Keep it out of NOI and out of the expense ratio. The same goes for recording fees, title charges and lender fees at closing.
What happens to NOI when the county reassesses after a sale?
NOI usually falls, because the tax line rises. If the reassessment lifts taxes on the $500,000 house from $6,000 to $7,500, operating expenses go to $18,208 and NOI drops from $28,892 to $27,392. The cap rate slips from 5.78% to 5.48%. Ask the assessor for your expected bill before you underwrite the deal.