EBITDA vs Cash Flow

Definition

EBITDA stands for Earnings Before Interest, Taxes, Depreciation, and Amortization. It is a measure of a company's overall financial performance and is often used as an alternative to net income. It strips out the cost of debt capital (interest), government charges (taxes), and non-cash accounting charges (depreciation and amortization). By removing these factors, EBITDA provides a clearer picture of a company's core operational profitability and cash-generating ability.

Common trap

The biggest trap with EBITDA is treating it as actual cash flow. Because it ignores capital expenditures (CapEx)—the money spent buying or maintaining physical assets—a company can report strong EBITDA while simultaneously bleeding cash. Warren Buffett famously said, 'Does management think the tooth fairy pays for capital expenditures?' Relying exclusively on EBITDA can blind you to the true cost of keeping the business running.

Practical use

Calculate EBITDA by starting with Net Income and adding back Interest, Taxes, Depreciation, and Amortization. If your business is asset-heavy, always look at EBITDA alongside Free Cash Flow (FCF) to ensure your capital expenditures aren't masking a failing business model. Aim for an EBITDA margin of 20%+ in mature software companies.

Formula

Definition

Cash flow is the actual money moving in and out of your business — not revenue, not profit, but real dollars in your bank account. Revenue is an accounting concept (you 'earned' $100K); cash flow is a reality concept (you 'received' $80K and 'spent' $95K, so you're $15K poorer). Companies die from running out of cash, not from unprofitability. 82% of small businesses fail due to cash flow problems, not lack of demand. The three types: Operating Cash Flow (from business activity), Investing Cash Flow (buying/selling assets), and Financing Cash Flow (debt, equity).

Common trap

The trap is confusing revenue with cash. A SaaS company booking $500K in annual contracts sounds healthy — but if those contracts are paid monthly ($42K/month), and you spent $200K this month on salaries and $100K on marketing, you're cash-flow negative by $258K THIS MONTH despite being 'profitable' on an annual basis. Enterprise SaaS is worse: Net-60 or Net-90 payment terms mean you deliver value for 3 months before receiving a single dollar. Many profitable companies have died because they couldn't cover payroll while 'waiting for invoices to be paid.'

Practical use

Calculate your monthly Operating Cash Flow: Cash Received (not revenue booked) − Cash Spent (not expenses accrued). Track the gap between revenue recognition and cash collection (DSO — Days Sales Outstanding). Target: DSO under 45 days for SaaS, under 30 for e-commerce. Build a 13-week rolling cash flow forecast: project every cash in-flow and out-flow weekly. Never rely on revenue projections — only count cash when it hits your account.

Formula