Net income is a crowded number. It mixes the performance of the business itself with how the company happens to be financed, where it happens to be taxed, and how much it spent on long-lived assets years ago. EBITDA β earnings before interest, taxes, depreciation and amortisation β strips those layers away to approximate the profit generated by operations alone. The EBITDA Calculator performs the standard add-back from a reported net income figure, and it is intended for business owners gauging operational health, investors comparing companies with different debt loads, and students learning why analysts reach for this measure so often.
Quick Answer
EBITDA = Net Income + Interest + Taxes + Depreciation + Amortisation. Equivalently, EBITDA = Revenue β Operating Expenses, where operating expenses exclude those same four items. Divide by revenue for the EBITDA margin.
What Each Add-Back Is Removing, and Why
Interest is removed because it reflects a financing choice, not operations: two identical factories, one bought with cash and one with a loan, run equally well, and EBITDA puts them on level ground. Taxes are removed because rates and incentives differ between countries, states and company structures. Depreciation and amortisation are removed because they are non-cash charges spreading the cost of past purchases β the cash left the business when the asset was bought, not in the years the charge appears. What survives those removals is a rough measure of the cash-generating power of the core operation, before the claims of lenders, tax authorities and the asset-replacement cycle.
That roughness is both the appeal and the danger. EBITDA gained its fame in leveraged buyouts, where buyers wanted to know how much debt a business's operations could service, and it remains the denominator in the widely quoted EV/EBITDA valuation multiple. But EBITDA is not cash flow. It says nothing about the capital expenditure needed to keep machines running, nothing about working capital absorbed by growing stock and receivables, and nothing about the very real interest bill. Sophisticated readers use it as one lens among several β alongside operating cash flow and free cash flow β rather than as a synonym for money earned.
How to Use the EBITDA Calculator
- Start from the company's net income (the bottom line after all charges) for the period.
- Add the interest expense for the same period.
- Add the income tax expense.
- Add depreciation and amortisation β usually shown together as D&A in the cash-flow statement or notes.
- Read the EBITDA total.
- Divide by the period's revenue and multiply by 100 if you want the EBITDA margin as a percentage.
Worked Example: Building EBITDA from a Bottom Line
A company reports net income of $200,000 for the year. Its statements show interest expense of $30,000, income tax expense of $45,000, depreciation of $25,000 and amortisation of $10,000. Add the four items back in turn: 200,000 + 30,000 = 230,000; + 45,000 = 275,000; + 25,000 = 300,000; + 10,000 = $310,000 EBITDA. The company sold $1,240,000 of goods and services in the year, so its EBITDA margin is 310,000 Γ· 1,240,000 = 0.25 β 25 percent. For every sales dollar, a quarter survived as operating earnings before the four excluded claims, a figure you can now place fairly next to a competitor financed entirely with equity.
Reading EBITDA Without Being Mislead
The largest hazard has a name: adjusted EBITDA. Companies may add back further items β restructuring costs, share-based pay, "one-off" losses that recur annually β until the figure flatters more than it informs. Ask what was adjusted and whether it truly never repeats. Second, compare margins within an industry, not across them: a software firm and a trucking fleet have structurally different EBITDA margins, and neither is "wrong". Third, watch companies with heavy assets β an airline's EBITDA can look splendid while its fleet quietly demands billions in replacement spending. Fourth, negative EBITDA is meaningful information, not a rounding state: the operation itself consumes more than it earns before financing even enters the picture. Finally, remember EBITDA ignores changes in working capital entirely, which is why growing businesses can post rising EBITDA while their bank balance falls.
From EBITDA Down to EBIT and Back to Net Income
EBITDA sits one step above its close relative EBIT (earnings before interest and taxes), and walking between them with the earlier example fixes the whole family tree in place. Start with the EBITDA of $310,000 and subtract the depreciation and amortisation of $35,000 that EBITDA had excluded: 310,000 β 35,000 = $275,000 of EBIT β the profit after recognising the wearing-out of assets but before financing and tax. Now subtract the interest of $30,000 to reach earnings before tax of $245,000, then the tax of $45,000, and you land exactly on the $200,000 net income the calculation began with. The round trip is worth performing whenever you meet a company's figures in the wild: if adding back and stripping down do not reconcile, one of the reported components is defined unusually, and the discrepancy itself is information about how the company presents its performance.
EBITDA is a non-standardised measure and figures here are general information and estimates, not financial advice. Definitions vary between companies β check what a specific report includes before comparing or investing.
Lenders lean on this metric for a practical reason: loan payments are made in cash, and EBITDA is the closest simple proxy for the cash a business generates before it services its debts. A common yardstick divides total debt by EBITDA β a company owing $400,000 with EBITDA of $130,000 sits at roughly 3.1 times leverage, a level many lenders consider manageable, while the same debt against EBITDA of $65,000 doubles the ratio to about 6.2 and starts to look stretched. The margin tells the same story in percentage form: that $130,000 on sales of $520,000 is a 25% EBITDA margin, healthy for most retailers and manufacturers, though the right benchmark always depends on the industry being compared.
Complete the Profitability Toolkit
EBITDA answers "how do operations perform?"; the Return on Investment Calculator answers the companion question "what did the capital earn?", while the Cash Ratio Calculator checks whether short-term obligations could actually be paid tomorrow. All three are gathered in the financial calculators section.