The taxes excluded from EBITDA are income taxes: federal corporate income tax, state and local income taxes, and foreign income taxes. Those get added back to net income when you calculate the metric. Every other tax a business pays — payroll taxes, property taxes, sales and use taxes, excise taxes — stays embedded in operating expenses and is never added back. The line between the two categories comes down to a single question: does the tax move with profits, or does the company owe it regardless of whether it made money?
The Rule That Separates the Two Categories
EBITDA strips out income taxes to isolate operating performance from tax strategy and jurisdiction. If a tax is calculated as a function of taxable income, it distorts the comparison between two otherwise identical businesses, so it comes out. If a tax is a cost of running the business — owed on wages paid, property owned, or products sold — it is part of what it costs to operate, and it stays in. The base of the tax, not its label, determines the treatment.
Income Taxes That Get Added Back
Federal Corporate Income Tax
The federal corporate income tax is usually the largest single add-back. Corporations pay a flat 21% rate on taxable income under 26 U.S.C. § 11.1Office of the Law Revision Counsel. 26 USC 11 – Tax Imposed Because that tax applies after deductions and credits, two companies with identical operations but different tax planning would report different net incomes. Adding the federal tax back removes that noise.
State and Local Income Taxes
Income-based taxes imposed by states, cities, and other local jurisdictions are added back the same way. Rates vary widely: some states have no corporate income tax, others levy above 10%. Without the add-back, a company headquartered in a high-tax state would look less profitable than an identical competitor in a no-tax state. Adding these back eliminates the geographic distortion.
Foreign Income Taxes
Income taxes paid to foreign governments get the same treatment. A manufacturer might face a 12.5% rate in one country and 30% in another while running the exact same production process. Adding back foreign income taxes lets analysts evaluate the global business as one operating unit without local tax policy skewing the picture.
Current vs. Deferred Tax Provisions
The income tax line on the financial statements has two components. The current provision is what the company owes the government this year. The deferred provision is a non-cash accounting adjustment reflecting timing differences between book income and taxable income. Standard EBITDA adds both back, because the goal is to reverse the full effect of income taxes on reported earnings.
Some definitions differ. Analysts computing “cash EBITDA,” and many credit agreements or private equity models, add back only the current cash portion and leave the deferred piece alone. If you are reading a debt covenant or a deal document, check whether it says “total income tax expense” or “cash taxes paid.” For companies with large deferred tax assets or liabilities, the difference can be material.
Taxes That Stay in Operating Expenses
Operating taxes are costs of running the business regardless of profitability. They reduce revenue before you ever reach operating income, and they are never added back.
Payroll Taxes
Payroll taxes are one of the largest operating tax burdens for most employers. Federal law requires employers to pay 6.2% of each employee’s wages toward Social Security and 1.45% toward Medicare.2Office of the Law Revision Counsel. 26 USC 3111 – Rate of Tax The Social Security portion applies up to an annual wage base, which is $184,500 for 2026.3Social Security Administration. Contribution and Benefit Base The Medicare portion has no cap. There is also a 0.9% Additional Medicare Tax on high earners, but employers do not match that piece; it falls entirely on the employee.4Internal Revenue Service. Questions and Answers for the Additional Medicare Tax
Federal unemployment tax adds another layer. The statutory FUTA rate is 6% on the first $7,000 of each employee’s annual wages, but most employers get a credit of up to 5.4% for paying into their state unemployment fund, reducing the effective federal rate to 0.6%.5Internal Revenue Service. Topic No. 759, Form 940 – Employers Annual Federal Unemployment (FUTA) Tax Return State unemployment rates vary by industry and claims history. All of these taxes track headcount and wages, not profits, so they remain in operating expenses.
Property Taxes
Property taxes on real estate, equipment, and other business assets are fixed operational overhead. The assessment is tied to the locally appraised value of what the company owns, not to its earnings. A warehouse owner pays property tax in loss years just as in profitable ones, so the cost stays inside EBITDA.
Sales, Use, and Excise Taxes
Sales and use taxes paid on purchases of equipment, supplies, or raw materials are baked into the cost of doing business. Excise taxes on specific products like fuel, alcohol, tobacco, or heavy vehicles work the same way: they are triggered by activity or product type, not by profit. A trucking company owes federal excise tax when it buys new heavy-duty vehicles whether the quarter was profitable or not. These stay in operating expenses.
Franchise Taxes and Other Gray Areas
State franchise taxes cause the most confusion because some are computed on income and others on net worth, capital, or authorized shares. Treatment follows the calculation method. A franchise tax based on a percentage of net income functions as a state income tax and gets added back. A franchise tax based on capital or net worth is an operating cost — the company owes it regardless of profit — and stays in operating expenses.
Some states let businesses choose whichever base produces the higher tax. In those cases, the EBITDA classification follows whichever method the company actually used. Companies typically disclose in the footnotes which franchise taxes they treated as income taxes and which they treated as operating expenses.
Penalties and Interest on Back Taxes
Penalties on unpaid income taxes typically follow the income tax line, so most analysts add them back as part of the “T” in EBITDA. Interest on back taxes is interest expense, so it falls under the “I” instead. Both get added back either way, but the distinction matters when a credit agreement defines interest and tax add-backs narrowly, or when the two components are disclosed separately.
Reserves for Uncertain Tax Positions
Reserves for uncertain tax positions — amounts set aside when a company takes an aggressive filing position that might not survive audit — sit in the income tax provision on the financial statements. Because they represent potential income tax liabilities, they get added back with the rest of the income tax component. If the reserve is later released, the reversal flows back through tax expense and adjusts EBITDA in that period.
Why the Distinction Matters
Misclassifying a tax inflates or deflates EBITDA, and the number carries real weight. Lenders set borrowing terms on EBITDA multiples. Buyers price acquisitions on EBITDA. Adding back payroll or property taxes by mistake makes the business look more profitable than it is and corrupts every ratio built on the figure. The error is common because “taxes” in the acronym reads as universal when it is not.
The working rule: if the tax rises and falls with profits, add it back. If the company would owe it in a loss year, leave it in operating expenses. When the classification is ambiguous — franchise taxes, gross receipts taxes, or modified income-based levies — look at what actually drives the calculation. The base of the tax decides whether it belongs inside EBITDA or outside it.