Basic: small SaaS company with high D&A
A SaaS startup reports $5,000,000 in annual revenue and $600,000 in net income. It paid $150,000 in interest on a credit facility, $200,000 in taxes, $300,000 in depreciation on data center hardware, and $250,000 amortizing capitalized software.
ResultEBIT = 600,000 + 150,000 + 200,000 = $950,000. EBITDA = 950,000 + 300,000 + 250,000 = $1,500,000. EBITDA margin = 1,500,000 / 5,000,000 = 30%. Total add-backs = $900,000.
Adding back interest and taxes converts net income into EBIT, the operating result. Adding back D&A removes non-cash accounting charges and gives EBITDA — the figure private-equity buyers and lenders use. A 30% margin is healthy for SaaS, where most costs after engineering are variable.
Intermediate: leveraged buyout (LBO) valuation
A private-equity sponsor is bidding on a manufacturer with $50,000,000 revenue and $3,000,000 net income. The company pays $2,000,000 of interest on existing debt, $1,000,000 in taxes, $3,500,000 in depreciation on plant and equipment, and $500,000 in amortization on acquired customer lists. The sector trades at an 8x EV/EBITDA multiple.
ResultEBIT = $6,000,000. EBITDA = $10,000,000. EBITDA margin = 20%. At 8x EBITDA, enterprise value is roughly $80,000,000, which the sponsor would finance with a mix of equity and new debt sized against EBITDA (typically 4x–6x).
PE firms standardize on EBITDA because it strips out the seller's existing capital structure — interest and D&A are buyer-specific after the deal. The 8x multiple times EBITDA gives a quick enterprise value, then debt is sized as a multiple of the same EBITDA. This is why even small swings in EBITDA move purchase price by millions.
Edge case: asset-heavy business where EBITDA misleads
A trucking company has $20,000,000 revenue, $200,000 net income, $1,200,000 of interest, $400,000 of taxes, and $3,200,000 of depreciation on its fleet. Maintenance capex to keep the fleet running is also about $3,000,000 per year — almost equal to depreciation.
ResultEBITDA = 200,000 + 1,200,000 + 400,000 + 3,200,000 = $5,000,000 (25% margin). Free cash flow after maintenance capex is closer to $2,000,000, and after interest only about $800,000.
The headline 25% EBITDA margin looks strong, but the trucks really do wear out — depreciation here is a proxy for replacement spending. Buying this company at 6x EBITDA ($30 million) implies a 15x multiple on actual free cash flow. This is the case Buffett warns about: EBITDA dollars are not interchangeable with cash.