EBITDA Calculator

Understanding the EBITDA calculator — concept and principle

EBITDA stands for earnings before interest, taxes, depreciation and amortisation. It approximates the cash profit a business generates from its operations before financing choices, tax and non-cash accounting charges. Investors, lenders and buyers use it to compare companies with different debt levels and asset bases, and it is a common basis for valuation multiples and loan covenants. The calculator works with any currency; the example uses US dollars.

How it is calculated

The calculator builds up from net income (the "bottom-up" method):

• EBIT = net income + income tax + interest expense
• EBITDA = EBIT + depreciation and amortisation
• EBITDA margin (%) = EBITDA ÷ revenue × 100

All figures should come from the same period's income statement. Depreciation and amortisation are often shown in the cash flow statement if they are not a separate line on the income statement.

The principle

Net income is what is left after every expense. Adding back interest removes the effect of how the company is financed; adding back tax removes differences in tax regimes; adding back depreciation and amortisation removes non-cash charges that depend on past investment and accounting choices. What remains is a measure of operating performance that is easier to compare across firms. The margin scales it by revenue, so companies of different size can be compared.

Worked example

1. Inputs: net income $400,000, tax $120,000, interest $60,000, D&A $180,000, revenue $3,000,000.
2. EBIT: 400,000 + 120,000 + 60,000 = $580,000.00.
3. EBITDA: 580,000 + 180,000 = $760,000.00.
4. EBITDA margin: 760,000 ÷ 3,000,000 × 100 = 25.33%.

How to read the result

Margins vary greatly by industry, so compare with peers and with the company's own history. A rising margin usually means better pricing or cost control. Remember what EBITDA leaves out: capital spending to replace worn assets, changes in working capital, interest and tax are all real cash costs. For asset-heavy businesses, EBITDA can look strong while free cash flow is weak. "Adjusted EBITDA" figures in company reports add back further items chosen by management, so read the reconciliation.

Common mistakes

• Adding back interest income instead of interest expense.
• Double-counting amortisation already included in another line.
• Treating EBITDA as cash flow and ignoring capital expenditure.

Frequently asked questions

Is EBITDA the same as operating profit?

No. Operating profit is close to EBIT; EBITDA also adds back depreciation and amortisation.

Can EBITDA be negative?

Yes, when operating costs before D&A exceed revenue.

What is an EV/EBITDA multiple?

Enterprise value divided by EBITDA, a common valuation ratio for comparing companies.

Sources: Koller, T., Goedhart, M. & Wessels, D., Valuation: Measuring and Managing the Value of Companies, McKinsey & Company, Wiley · CFA Institute, Financial Reporting and Analysis (CFA Program curriculum)