SDE meaning in one paragraph
SDE (seller's discretionary earnings) answers one question: if a single owner ran this business full time, how much money would it produce for that owner each year, before paying them anything and before financing and tax decisions? It starts with the business's pre-tax profit and adds back the owner's own pay and perks, interest, depreciation and amortization, and one-time costs that a new owner would not repeat. You will also see it called seller's discretionary cash flow or owner's discretionary earnings. Business brokers quote most small-business asking prices as a multiple of SDE, so a small error in SDE becomes a large error in price.
The SDE formula
SDE = pre-tax net profit + owner's compensation + interest + depreciation and amortization + discretionary and one-time expenses
Each piece has a reason:
| Component | What to add back | Why it is added back |
|---|---|---|
| Pre-tax net profit | The starting point from the profit and loss statement or tax return | Income taxes depend on the owner and entity, not the business |
| Owner's compensation | One owner's salary, wages, draws, payroll taxes on that pay, and owner benefits such as health insurance and retirement contributions | SDE measures the total benefit to one owner, so their pay is part of the result, not a cost |
| Interest | Interest on the current owner's loans | The buyer will finance the deal their own way |
| Depreciation and amortization | Non-cash charges for equipment and intangibles | They are accounting entries, not cash spent this year (capex is handled separately) |
| Discretionary expenses | Personal costs run through the business: a family car, personal travel, a family member paid above market for little work | A new owner would not incur them |
| One-time expenses | A lawsuit settlement, a relocation, a one-off repair after a flood | They are not expected to recur |
Only one owner's pay is added back. If two partners both work full time and the buyer will need to replace one of them with a hire, the second salary stays in as a cost (at a market rate). This is one of the most common ways SDE gets overstated.
A worked SDE example
The figures below are an illustration built to show the arithmetic, not data from a real business. Imagine an owner-operated service business with this year's results:
| Line | Amount |
|---|---|
| Revenue | $1,200,000 |
| Pre-tax net profit on the P&L | $95,000 |
| Owner's salary and payroll taxes on it | + $90,000 |
| Owner's health insurance paid by the business | + $14,000 |
| Interest on the owner's equipment loan | + $8,000 |
| Depreciation | + $22,000 |
| Owner's personal vehicle expensed through the business | + $9,000 |
| One-time legal settlement | + $12,000 |
| SDE | $250,000 |
Now apply the buyer's lens. Suppose the equipment that is depreciated wears out and costs about $15,000 a year to replace. The depreciation add-back does not make that cost disappear, so a careful buyer would look at SDE minus normal capital expenditure ($235,000) when deciding what they can pay and borrow. And if the "one-time" legal cost turns out to happen every couple of years, it is not one-time and should come back out.
You can put these numbers straight into the Business Valuation Calculator to see an indicative value range, then test whether the deal can carry acquisition debt in the Deal Analyzer.
Business Valuation Calculator
Estimate a low, base and high value from SDE or EBITDA.
Add-backs: what usually counts and what usually doesn't
Add-backs are where SDE is won or lost. A useful rule: every add-back needs evidence and a reason it will not happen under a new owner.
| Usually accepted (with evidence) | Often challenged | Usually rejected |
|---|---|---|
| One owner's salary, payroll taxes and benefits | Owner "perks" with no documentation | Costs the business needs to operate, relabelled as personal |
| Interest, depreciation and amortization | Family members on payroll: only the amount above a market wage for the work done | A second working owner's pay with no replacement cost |
| Clearly personal expenses run through the business | Rent paid to the owner's own property company: only the gap to market rent, either way | Recurring "one-time" costs |
| Genuinely non-recurring items (a documented one-off repair, legal case or move) | Marketing the seller says was "wasted" | Under-investment the buyer will have to fix (deferred maintenance, below-market pay) |
Two adjustments can reduce SDE and are easy to miss:
- Below-market costs. If the owner rents the building from themselves at a discount, or a relative works for less than the job is worth, the new owner will pay market rates. Subtract the difference.
- Missing roles. If the seller does work you will have to hire for (bookkeeping, sales, a second shift), the cost of that hire comes off.
SDE vs EBITDA
SDE and EBITDA are close cousins. The difference is the owner:
SDE = EBITDA + one owner's total compensation (assuming the same other add-backs)
| SDE | EBITDA | |
|---|---|---|
| Owner's pay | Added back (one owner) | Treated as a cost at a market salary for a manager |
| Typical use | Owner-operated businesses where the buyer will work in the business | Larger businesses with a management team, and investor buyers |
| Answers | "What does this business pay one owner-operator?" | "What does this business earn after paying someone to run it?" |
| Multiples | Applied to SDE; not interchangeable with EBITDA multiples | Applied to EBITDA |
Because SDE is larger than EBITDA for the same business, an SDE multiple is lower than an EBITDA multiple for the same price. Never apply an EBITDA multiple to SDE or the reverse; see valuation multiples explained for how to convert between them.
In our example, suppose hiring a general manager to do the owner's job would cost $100,000 a year including payroll taxes and benefits (an assumption for illustration). Adjusted EBITDA is SDE minus that market cost: $250,000 − $100,000 = $150,000. Same business, same cash, smaller earnings figure, which is why the multiples differ.
How buyers and lenders use SDE
SDE is a starting point, not the answer. To decide what a business is worth to you, take SDE and subtract what the business must still pay for:
- A salary for yourself or a manager. You need to live; lenders also look for a reasonable owner salary before they count cash as available for debt.
- Normal capital expenditure. Equipment, vehicles and software that must be replaced to keep earnings where they are.
- Debt service. Annual principal and interest on the acquisition loan and any seller note.
What is left is your real free cash flow. Lenders compare cash flow available for debt to the annual debt payments, the debt service coverage ratio (DSCR). Run your SDE through the SBA Loan Calculator to see the largest loan it supports at a target DSCR.
Deal Analyzer
Valuation, financing and DSCR in one view: can this business carry this deal?
How to verify a seller's SDE
A broker's SDE figure is a claim. Before you rely on it:
- Reconcile to tax returns. Start from the business tax return (for example Schedule C for a sole proprietor, or Form 1120-S for an S corporation) rather than internal P&Ls only.
- Prove the cash. Match reported revenue to bank deposits month by month.
- Ask for the add-back schedule with evidence: payroll records for owner pay, receipts and statements for personal expenses, documents for each one-time item.
- Look at three years, and the trend. One strong year with unusual add-backs is weaker than three steady years.
- Recast it yourself. Build your own SDE line by line; the free due diligence checklist lists the records to request.
The Acquisition Deal Kit
Editable files for a live deal: a 150-item diligence request list, an SDE add-back workbook, an SBA loan and DSCR model, an annotated LOI and a closing plus first-100-days checklist.
Common SDE mistakes
- Adding back two owners' salaries when only one will be replaced by the buyer.
- Treating depreciation as free money when the equipment really does need replacing.
- Calling recurring costs "one-time".
- Comparing an SDE multiple with an EBITDA multiple.
- Using the best recent year rather than a weighted or average view.
- Forgetting working capital: SDE says nothing about the cash tied up in inventory and receivables.
Frequently asked questions
What does SDE stand for in business?
SDE stands for seller's discretionary earnings: the pre-tax earnings of a business plus one owner's compensation, interest, depreciation and amortization, and discretionary or one-time expenses.
Is SDE the same as profit?
No. Net profit is after the owner's pay, interest, depreciation and one-off costs. SDE adds those back, so it is usually much higher than the profit on the tax return.
Is SDE the same as cash flow?
It is a measure of cash flow to one owner before financing, capital expenditure and the owner's own pay. Your actual cash after buying the business will be lower once you pay yourself, replace equipment and service debt.
When should I use SDE instead of EBITDA?
Use SDE for owner-operated businesses where the buyer will work in the business, which covers most small businesses sold through brokers. Use EBITDA when the business has management in place and the buyer will not run it day to day.
What is a good SDE multiple?
There is no single good multiple. It depends on the size of SDE, growth, risk, owner dependence and how the deal is financed. Use multiples from comparable sales on the same SDE basis and test any price in the Business Valuation Calculator.
Can SDE be negative?
Yes. If the business loses money even after adding back the owner's pay and one-time items, SDE is negative and it is generally priced on assets rather than earnings.
Sources and further reading
Primary sources for the rules and definitions referenced in this guide. Programs and rules change; check the current version.
- About Schedule C (Form 1040), Profit or Loss from Business, Internal Revenue Service. The tax form sole proprietors use to report business profit, the usual starting point for recasting SDE.
- About Form 1120-S, U.S. Income Tax Return for an S Corporation, Internal Revenue Service. The S corporation return; reconcile owner pay and profit to it when recasting SDE.
- Publication 946, How to Depreciate Property, Internal Revenue Service. Depreciation of business equipment such as machines, including the Section 179 election.
- SOP 50 10: Lender and Development Company Loan Programs, U.S. Small Business Administration. The current standard operating procedure for 7(a) and 504 loan origination, including change-of-ownership and equity rules.
Educational content, not advice. Bootstrapper.com publishes general information for education. It is not legal, tax, accounting, lending or investment advice and does not consider your circumstances. Calculator outputs are illustrative estimates. Rules, rates and programs change; confirm details with qualified professionals before making decisions.