Free SDE Calculator
Yes, completely. It runs in your browser, stores nothing, sends nothing, and asks for no email. SDE, seller's discretionary earnings, is the number buyers of owner-run businesses multiply to set a price, and calculating it takes seven inputs from documents you already have. The math below is the same math a buyer's accountant and a lender will run on your business, so it is worth running on yourself first.
What you need before you start
Your most recent tax return or year-end P&L, and ten honest minutes with your own expenses. The first four inputs come straight off the statements: net profit, your total compensation, interest, and depreciation. The last three are judgment calls about what does not repeat and what was really personal, and they are where buyers will push back, so count them the way a skeptic would. If you want the full logic behind each line, read what SDE is and how buyers test it first.
What the number does and does not tell you
The calculator gives you SDE, the earnings a buyer multiplies. It does not give you the multiple, and the multiple is where the money is. Two businesses with identical SDE sell for very different prices depending on how much revenue depends on a few customers, how much of the operation runs without the owner, and whether the books survive verification. It also cannot tell you what a bank will finance, and most deals live or die on that. When you want the whole answer, the worth page explains how the pieces fit, and the walkthrough shows it on a real demonstration deal.