Business owners reviewing financial documents, representing the $6 million maximum net asset value test in Australia

Where independent valuation evidence matters for the small business CGT concessions.

UPDATED JULY 2026

The $6 million maximum net asset value test can appear to be a simple threshold calculation. In practice, the result may depend on a complex group perimeter, the correct valuation date and the market value of assets that do not have an observable price – particularly business goodwill and private company interests.

Tax advisers determine how the legislation applies, which entities and assets fall within the test, and which liabilities may be deducted. The valuer’s role is narrower but often decisive: provide supportable market value evidence for the relevant assets at the required date.

KEY TAKEAWAY

Run the legal and tax analysis first, then scope the valuation evidence around the assets capable of moving the group above or below the $6 million threshold.

What the test requires at a high level

Under the Australian Taxation Office’s guidance, the test is applied just before the CGT event that gives rise to the capital gain. The total net value of relevant CGT assets must not exceed $6 million.

The calculation is based on market value, not book value. It can include assets of the taxpayer, connected entities and, subject to specific rules, affiliates and entities connected with affiliates. The grouping rules and exclusions are fact-sensitive, so the entity perimeter should be confirmed by the client’s tax adviser before the valuation work is finalised.

A practical workflow

1. Identify the CGT event and fix the valuation time

Start with the proposed transaction or restructure and identify the event that requires the test. The valuation brief should record the precise valuation date and make clear that the relevant snapshot is “just before” the CGT event – not the most recent financial year-end and not the date the report is prepared.

2. Map the entity perimeter with the tax adviser

Prepare a structure chart showing companies, trusts, partnerships, individuals, ownership percentages, control relationships and potential affiliates. The tax adviser should document why each entity is included or excluded. This step reduces double counting and prevents a material asset being discovered after the valuation is complete.

3. Build a complete asset register

List the relevant CGT assets for each included entity and identify the evidence available for each item. The register should not be limited to assets described as “business assets” in the accounts. It may need to consider goodwill, private company interests, investment assets, real property, loans, cash, intellectual property and off-balance-sheet rights, subject to the statutory rules and exclusions.

Interests in connected entities may require special treatment to avoid double counting the underlying assets. Personal-use, main-residence and superannuation exclusions also require careful tax analysis. The valuer should not assume that the accounting balance sheet defines the statutory perimeter.

4. Prioritise the assets with genuine valuation uncertainty

Some assets have strong third-party evidence, such as listed securities or recent arm’s-length property appraisals. Others require professional judgement. A trading business may contain material goodwill even if the balance sheet records little or none.

For a private operating business, the valuation may involve normalising historical earnings, assessing owner dependency and customer concentration, selecting an income or market approach, and cross-checking the result against available market evidence. The methodology should match the asset, the purpose and the information available.

5. Confirm deductible liabilities and exclusions

Liabilities are not deducted simply because they appear in the accounts. The tax adviser should confirm which existing liabilities may be deducted under the statutory test and whether they relate to the relevant CGT assets.

Contingent liabilities and general provisions may not qualify. The same analysis should identify excluded assets and double-counting adjustments, including interests in connected entities where the underlying assets are already included.

6. Run a near-threshold sensitivity analysis

A single point estimate can conceal the real file risk. If the preliminary group total is close to $6 million, test how changes in goodwill, property value, minority interests or related-party balances affect the result.

Illustrative position Group net value Implication
Base calculation using supported asset values $5.70 million The threshold appears to be met, subject to the tax analysis.
Business goodwill is $400,000 higher $6.10 million The conclusion changes; valuation support becomes critical.
A liability assumed deductible is excluded $6.05 million The conclusion changes even though the asset values do not.

The example is illustrative only. Its purpose is to show why the valuation range, liability analysis and entity perimeter should be considered together before the transaction is implemented.

7. Assemble a defensibility pack

A well-documented file should allow another professional to follow the reasoning from the CGT event to the final calculation. At a minimum, retain the structure chart, inclusion analysis, asset register, valuation reports, liability schedule, assumptions, source records and sensitivity analysis.

When an independent valuation is particularly useful

  • The preliminary result is close to the $6 million threshold.
  • The group holds a private business, goodwill, intellectual property or unlisted equity interests.
  • The transaction is between related parties or uses a market value substitution rule.
  • A retrospective valuation date is required and contemporaneous evidence is limited.
  • The client expects ATO review, audit scrutiny or a contested tax position.
  • Book values are being used as a proxy for market value without supporting analysis.

What to include in the valuation instruction

  • The asset or interest to be valued and its legal owner.
  • The exact valuation date and the proposed CGT event.
  • The valuation purpose and the tax adviser’s confirmed entity perimeter.
  • Historical financial statements, tax returns, current management accounts and forecasts.
  • Group structure, related-party arrangements and prior transactions involving the asset.
  • Known limitations, disputed facts and any required sensitivity analysis.

Common errors to avoid

  • Using book value where the legislation requires market value.
  • Valuing the business at the report date rather than just before the CGT event.
  • Double counting both an interest in a connected entity and its underlying assets.
  • Selecting an unsupported low value because the result is tax-favourable.
  • Using information that arose after the valuation date without considering whether it was reasonably foreseeable at that date.
  • Treating the valuer’s report as a substitute for the tax adviser’s eligibility analysis.

The calculation is only as strong as its weakest component. A technically correct spreadsheet cannot cure an incomplete group map, an incorrect valuation date or unsupported market values. Early coordination between the tax adviser, client and valuer is usually the most efficient way to protect the file.

Establish market value before the event

Expert Business Valuations provides independent valuation analysis for CGT events, restructures, related-party transactions and other tax-sensitive matters.


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Daniel Callegari, Principal Valuer and Managing Director of Expert Business Valuations

About the author

Daniel Callegari is a Certified Business Valuer, Licensed Business Broker and Principal Valuer of Expert Business Valuations. He works with business owners, accountants, lawyers, investors and intermediaries across SME and lower mid-market valuation matters. His work focuses on maintainable earnings, risk, transferability and evidence-based valuation analysis appropriate to the purpose of each engagement.

Editorial note and disclaimer: This article provides general valuation information and does not constitute tax or legal advice. Eligibility for the small business CGT concessions depends on the legislation and the client’s circumstances. Obtain advice from a qualified Australian tax adviser.
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