Mergers & Acquisitions · Question

What is normalised EBITDA when valuing a small business?

Short answer

Normalised EBITDA is earnings before interest, tax, depreciation and amortisation, adjusted to remove one-off items and owner-specific distortions so it reflects what the business earns in ordinary conditions under a typical manager. Buyers often price small businesses as a multiple of this figure, so each adjustment can move the valuation, and each must be explained and supported.

In more detail

Reported profit in an owner-run company often mixes the business's performance with the owner's choices. Normalising separates the two so a buyer can see what they would actually inherit.

Common adjustments

Add back one-off costs such as a legal settlement or a plant relocation.
Remove one-off gains such as a sale of old machinery or a rare insurance receipt.
Replace the owner's salary with a market salary for the role a hired manager would fill.
Strip out personal expenses that ran through the books.
Restate related-party rent or purchases to market terms.

Each item moves the figure up or down. Adjustments in both directions are expected; a list of only favourable ones looks suspicious.

A workshop with an unusually generous owner

A fabrication unit pays its owner a very small salary but charges a family vehicle and holidays to the business. Reported profit looks high. After a market-rate manager salary is substituted and the personal items removed, the normalised figure is lower. A buyer who discovers this in diligence may question every other claim, so it is better to present it upfront.

How buyers test it

Expect them to ask for invoices, contracts and bank entries behind each adjustment, and to discount anything that looks recurring but is labelled one-off. If a so-called one-off repeats across years, it is probably part of the business.

Valuation also depends on growth, risk, customer concentration and the multiples in your sector, none of which normalisation alone settles. Ask your accountant to prepare and document the adjustments before you share a number with any buyer.

Key points

Normalised EBITDA adjusts reported earnings for one-offs and owner-specific items.
Adjustments run both ways and each needs supporting documents.
Substituting a market salary for the owner's pay is a standard, expected change.
Repeated so-called one-offs are likely to be treated as ordinary costs.
The figure is one input to valuation, not the whole answer.

Who this applies to

Owner-managed businesses preparing figures for a potential buyer.
Accountants asked to explain how profit was adjusted.
Promoters wanting a realistic view of what buyers will pay for.

Last reviewed 3 October 2026

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