EBITDA & SDE Calculator

Work out your e-commerce brand's EBITDA, adjusted EBITDA, and seller's discretionary earnings (SDE) — the two numbers every acquisition conversation starts with.

EBITDA
Adjusted EBITDA
SDE (Seller's Discretionary Earnings)
SDE Margin

All calculation happens in your browser — nothing you enter is sent to us or stored. Results are estimates for orientation, not an appraisal, offer, or financial advice.

How to use this calculator

  1. Enter trailing-twelve-month figures, not projections — buyers price the trailing year.
  2. COGS should be fully landed: product cost plus freight, duties, and inbound shipping.
  3. Operating expenses include everything else on the P&L — payroll (including your salary), marketing, software, rent — but enter depreciation, amortization, and interest in their own boxes.
  4. Owner salary & perks is your total compensation: salary plus health insurance, vehicle, travel, and anything personal running through the business.
  5. One-time costs are genuinely non-recurring: a lawsuit, a rebrand, a major site rebuild. If it happens most years, it's not one-time.

EBITDA vs. SDE — which number is yours?

If your business earns under roughly $1M a year and an owner-operator runs it, buyers will speak SDE — earnings including your compensation, because the buyer steps into your seat. Larger or managed businesses are priced on EBITDA, which assumes a market-rate manager stays on payroll. The same P&L can differ by $50–100K+ between the two definitions, which at a 3–4x multiple means a six-figure valuation swing. We wrote a full explainer with a worked add-back example.

What counts as a legitimate add-back?

Documented owner compensation, true personal expenses, genuine one-offs, and non-cash charges. Every add-back needs a receipt — undocumented add-backs don't just get rejected, they discount the credibility of your whole schedule. Once you have your SDE, the next question is the multiple: see our 2026 multiples guide or jump straight to the valuation estimator.

Want a real number, not an estimate?

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