SDE and EBITDA are both shorthand for earnings, but they answer slightly different questions. For small business acquisitions, using the wrong metric can make the same business look either attractive or overpriced.
The distinction matters in Australia because many listed businesses are still heavily owner-operated. If you ignore the practical cost of replacing the owner, you can overestimate what the business really earns for a new buyer.
This guide is a practical way to think about when each metric is useful and how buyers should interpret them in the lower middle market.
Key takeaways
- SDE is often more relevant for owner-operator businesses.
- EBITDA is more useful when management costs are already embedded.
- The same business can look cheap or expensive depending on the earnings lens used.
- Australian buyers should normalise wages, superannuation, and replacement management carefully.
1. What SDE captures
Seller's discretionary earnings generally start with operating profit and add back items like owner salary, certain personal expenses, one-off costs, and non-cash charges. It is most useful when the buyer expects to step into the owner's role and personally perform at least some of the current work.
That is why SDE is common in smaller Australian transactions. Many service, trade, and niche industrial businesses are still run by a founder or owner-manager who combines management, sales, and operational oversight in one role.
2. What EBITDA captures
EBITDA strips out interest, tax, depreciation, and amortisation, but it usually assumes an operating structure that already includes management. That makes it more useful for larger or more systemised businesses where the owner is not the main source of daily delivery, customer retention, or decision-making.
In practice, EBITDA becomes more helpful when the business can continue under hired management without the economics collapsing.
3. Where buyers get tripped up
A common mistake is treating a heavily owner-dependent business as if EBITDA tells the whole story. If the current owner personally sells, quotes, manages staff, and holds key customer relationships, a new buyer may need to hire one or more people to keep the same level of performance.
That adjustment can be meaningful in Australia once you include wages, superannuation, payroll tax thresholds where relevant, and the practical cost of replacing experience.
4. Why this matters for valuation
If a listing uses EBITDA for a business that still depends on the owner, you may need to restate economics to reflect replacement management cost. If it uses SDE, consider whether your own post-close plan really matches an owner-operator model or whether you will need a manager in place.
The right multiple is not only a market question. It is also a transferability question.
5. A practical buyer test
Ask a simple question: who performs the critical work today, and what would it cost if that person were not the owner after settlement? If the answer is one hire, SDE may still be the more useful lens. If the answer is a stable team plus systems, EBITDA may be more appropriate.
The point is not to be doctrinaire. The point is to make the earnings metric match the operating reality of the business you are buying.
These resources are general information only. They are intended to support research and screening, not replace legal, tax, accounting, or transaction advice.
Related questions
A few quick answers that often come up when buyers are evaluating this topic.
Is SDE or EBITDA more common in Australian listings?
For smaller owner-operated businesses, SDE-style framing is often more practical. For larger or more systemised businesses, EBITDA is more common and usually more useful.
Can the same business be looked at through both lenses?
Yes. Many buyers recast the same business using both SDE and EBITDA-style adjustments so they can understand how the economics change under different ownership models.
Keep reading
These related guides cover the next questions buyers usually ask once they get through the basics.
How to value a small business in Australia
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Read guideHow to buy a business in Australia
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Read guideRed flags when buying a small business in Australia
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Read guideScreen more opportunities with a tighter acquisition lens.
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