Most business owners think about a business valuation only when they're preparing to sell. The ATO needs a supportable market value in many more situations than you might think. One of these situations is about to affect almost every business owner in the country.

Business valuations play a key role in various tax and compliance events for Australian SMEs. These include restructures, employee share schemes, shareholder exits, and family law matters. With the ATO paying closer attention to private groups, related-party transactions and market value evidence, getting the business valuation wrong has become an expensive mistake. Additionally, the capital gains tax reforms enacted in 2026 have created a specific business valuation event on 1 July 2027. Owners need to start planning for this now.

Why does the ATO require a business valuation?

The ATO generally needs a business valuation whenever a transaction could change taxable value. Common triggers include:

• business sales and acquisitions

• capital gains tax events

• business and trust restructures

• employee share schemes

• share buy-backs

• shareholder disputes and buy-outs

• deceased estates and probate

• Division 7A matters

• related-party transactions

The question underneath most of these is the same: was the transaction done at market value? If it wasn't, the ATO can substitute its own assessment, which can bring additional tax, penalties, or a dispute.

What does "market value" mean to the ATO?

Market value is generally the price that knowledgeable, willing parties would agree on, dealing at arm's length. It isn't book value, tax value or historical cost, and it has to reflect commercial reality. This means considering profitability, industry risk, assets, liabilities, market transactions, goodwill, and capital structure, instead of just looking at the balance sheet figure.

What business valuation methods does the ATO accept?

The ATO doesn't mandate a single method. The right approach depends on the business and the purpose of the valuation.

Capitalisation of future maintainable earnings. One of the most common methods for Australian SMEs. It includes normalising earnings, removing one-off items, adjusting owner pay, and using a multiple based on risk and growth. It suits profitable service businesses and established SMEs.

Discounted cash flow. More common for start-ups, technology businesses and high-growth companies. It forecasts future cash flows and discounts them back to present value, and the ATO expects the assumptions to be reasonable and supportable.

Net asset value. Often used for property entities, investment companies and asset-heavy businesses. Assets are adjusted to market value and liabilities deducted.

Market multiples. Compares the business to similar deals or listed companies. It uses multiples like EBITDA, EBIT, revenue, or seller's discretionary earnings. The difficulty is making sure the comparables are genuinely relevant to the business being valued.

What do the 1 July 2027 CGT changes mean for business valuations?

This is the change most owners need to understand. The Treasury Laws Amendment (Tax Reform No. 1) Act 2026 is now law, having passed Parliament in June 2026, and it takes effect from 1 July 2027.

From that date, for individuals, trusts and partnerships, the 50% CGT discount is replaced by two mechanisms: cost base indexation, which lifts the cost base in line with inflation so only the real gain is taxed, and a 30% minimum tax rate on net capital gains.

For an asset held across the transition, the gain is split. Growth up to 1 July 2027 keeps the existing 50% discount treatment. Growth after that date falls under the new indexation and minimum tax regime. To divide the two, the legislation allows a market valuation of the asset at 1 July 2027, or a statutory apportioning method elected when the asset is eventually sold.

That transition date is why this matters for valuations. For a private business, the value at 1 July 2027 permanently affects how much of an eventual gain is taxed under the old rules and how much under the new. A private business doesn’t have a clear market price like listed shares or property. Its value mainly comes from goodwill, client relationships, and other intangibles that are tough to measure. A defensible business valuation prepared close to the date is far more reliable than one reconstructed years later. By that time, the records and context may have faded, making it less accurate.

Is this a reason to sell before 1 July 2027?

For CGT reasons alone, generally no. The new rules apply only to gains accruing after 1 July 2027, and the growth built up before that date keeps its existing treatment even if you sell later. Selling early to get ahead of a change that doesn't apply retrospectively is usually a worse outcome than selling well. The reasons to sell should be commercial and personal first, with tax planned around them. Anyone pressing you toward a rushed sale on the basis of a looming cliff is selling urgency rather than giving advice.

The change creates a reason to establish and document what your business is worth on the transition date. This ensures the number is accessible and defensible when you need it.

Do the small business CGT concessions still apply?

Yes. The four small business CGT concessions under Division 152 remain in place, subject to their existing eligibility tests. The turnover threshold for the 50% active asset reduction is set to rise from $2 million to $10 million aggregated turnover, while the other concessions keep the $2 million turnover and $6 million net asset value tests.

Because some of the administrative detail and further amending legislation were still being worked through after the Act passed, it's worth confirming the current position with your adviser before acting.

What business valuation issues does the ATO focus on?

Earnings normalisation. One of the most common problems is earnings that haven't been normalised properly. Personal expenses charged to the business or an owner's salary that is too high or too low can skew the earnings used for valuation.

Related-party transactions. The ATO closely monitors transactions between related parties. This includes shareholder loans, restructures, and internal share transfers. Where a transaction happens below market value, the ATO can substitute its own assessment.

Employee share schemes. ESS valuations attract particular scrutiny. Under Division 83A of the Income Tax Assessment Act 1997, shares and options from a scheme usually need to be valued at market value. This becomes tricky for a private company that lacks an observable share price.

The business valuation may involve:

• Equity value

• Shareholder loans

• Option pricing

• Minority interests

• Preference shares

• Capital structure adjustments

Common mistakes business owners make

When we review business valuation reports prepared elsewhere, the recurring problems are consistent:

• relying on outdated multiples

• confusing enterprise value with equity value

• ignoring shareholder loans

• failing to normalise earnings

• applying listed company multiples to an SME

• relying on DIY valuation calculators

Each of these can cause trouble in a tax review, a shareholder or family law dispute, or a capital raising.

Why do independent business valuations matter?

Directors can sometimes assess value themselves, but an independent business valuation holds more weight where it matters. It's more defensible if the ATO reviews it, it supports better governance, it gives investors more confidence, and it reduces the risk of a dispute. When the figure is going to be tested by someone with a reason to challenge it, independence is what lets it hold.

Where this leaves you

A business valuation is no longer just something done before a sale. For many SMEs, it now sits at the centre of tax compliance. The transition on 1 July 2027 has made a defensible market value more relevant than it has been in decades. The ATO is focusing on private businesses and related-party transactions. So, using rough estimates and old assumptions can be risky.

A good valuation does more than satisfy a compliance requirement. It shows you what drives your value, where the risks sit, and how to plan around both.

Talk it through

If you’re considering the 1 July 2027 changes for your business, or need a business valuation for any ATO reason, start with a free 15-minute chat.

📞 Schedule an intro call to discuss a business valuation for your business and the next steps.