EBITDA & EBITDA Margin

How EBITDA Is Calculated

EBITDA is a measure of a business’s core operating profitability that strips out financing decisions, tax jurisdiction, and non-cash accounting choices, making businesses of different capital structures and ages easier to compare. Enter net income along with interest, taxes, depreciation, and amortization, and this calculator adds them back together to find EBITDA, plus the EBITDA margin as a share of revenue.

This is distinct from the Break-Even Point Calculator calculator (units and revenue needed to cover fixed costs) and the Margin Calculator calculator (cost, price, and profit margin on a per-sale basis) — EBITDA is its own standalone profitability figure computed from a full income statement, not a break-even threshold or a per-unit ratio.

The Formula

1. EBITDA = Net Income + Interest Expense + Tax Expense + Depreciation + Amortization — the standard “build-up” method, starting from the bottom line and adding back the four items EBITDA deliberately excludes.
2. EBITDA margin = EBITDA ÷ Revenue, as a percentage — how much of every revenue dollar remains as core operating profit before financing, tax, and non-cash effects.

Worked Example

$1,000,000 revenue, $150,000 net income, $20,000 interest expense, $40,000 tax expense, $60,000 depreciation, and $10,000 amortization:

1. Total add-backs: $130,000 ($20,000 + $40,000 + $60,000 + $10,000).
2. EBITDA: $280,000 ($150,000 + $130,000).
3. EBITDA margin: 28.0% of revenue.

Key Factors to Consider

• EBITDA is widely used in business valuation, often as a multiple. Buyers and investors commonly value a business as a multiple of its EBITDA (e.g. “5x EBITDA”) — this is one of the main reasons EBITDA is so widely tracked, beyond internal profitability analysis, since it offers a rough, capital-structure-neutral basis for comparing acquisition targets.
• Adjusted EBITDA goes further, adding back one-time or non-recurring items too. Businesses being sold or seeking investment often present an “adjusted EBITDA” that also excludes one-off legal costs, restructuring charges, or owner-specific expenses — this calculator computes standard EBITDA only, not an adjusted figure, so treat any “adjusted EBITDA” you encounter elsewhere as a related but distinct number.
• A negative EBITDA is a real, meaningful signal, common in early-stage or heavily investing businesses. Some growth-stage companies intentionally run negative EBITDA while investing heavily in growth — whether that’s a red flag or a reasonable strategy depends heavily on the business’s stage and plan, not the number alone.
• EBITDA doesn’t account for the capital expenditures a business needs to sustain its operations. A capital-intensive business (needing regular equipment replacement, for instance) can show strong EBITDA while still needing significant reinvestment just to maintain current operations — EBITDA alone doesn’t capture that ongoing capital need.

Common Mistakes

• Treating EBITDA as the same thing as cash flow. EBITDA ignores real, ongoing cash costs like capital expenditures and changes in working capital — a business can have strong EBITDA and still run short on actual cash. See the Cash Flow Calculator calculator for a genuine money-in-minus-money-out figure.
• Comparing EBITDA margins across industries. A software company and a manufacturer have very different natural capital intensity, so their typical EBITDA margins aren’t directly comparable — EBITDA margin is most useful compared against a business’s own history or similar companies in the same industry.
• Forgetting that EBITDA isn’t a substitute for net income. EBITDA is a useful supplementary metric, but it’s not a standardized accounting measure (unlike net income under GAAP) — different companies can calculate it slightly differently, so always check what add-backs a reported EBITDA figure actually includes before comparing it directly to your own.

Useful to Know

• EBITDA multiples vary substantially by industry — a SaaS company might command a much higher EBITDA multiple than a low-margin retailer, since valuation reflects growth prospects and risk, not just the current EBITDA figure itself.
• EBITDA can be calculated two equivalent ways: building up from net income (the method this calculator uses) or building down from revenue (Revenue − Operating Expenses, excluding interest, taxes, depreciation, and amortization) — both produce the same number when the underlying figures are consistent.
• Because EBITDA isn’t a GAAP-standardized metric, always check exactly which line items a reported EBITDA figure includes or excludes before comparing it across companies or using it in a valuation — a small definitional difference can meaningfully change the resulting number.
• Lenders sometimes use EBITDA (or a variant of it) in loan covenants to gauge a borrower’s ability to service debt — this is a different use case from valuation, but it’s part of why EBITDA is tracked so closely even by businesses that aren’t for sale.