Business Valuation for CGT and Estate Planning: What Australian SME Owners Need to Know

Understanding the role of business valuation in capital gains tax events, estate planning, and trust restructures. A practical guide for business owners and their advisors.

BizVal Team

Introduction

Tax and estate planning are among the most common reasons SME owners seek a professional business valuation, yet they're often the least understood. The ATO has specific requirements for valuations used in CGT events, and getting it wrong can lead to significant tax consequences.

This article covers the key scenarios where a valuation is needed for tax and estate planning purposes, what the ATO expects, and how to ensure your valuation meets the required standard.


When a Valuation Is Required for Tax Purposes

CGT Event A1: Disposal of an Asset

When you sell a business or business assets, the CGT is calculated on the difference between the sale price and the cost base. If the sale is to a related party or there's no clear market price, a valuation establishes the market value for CGT purposes.

CGT Event E1-E5: Trust and Company Restructures

Trust restructures, company conversions, and asset injections into trusts or companies all trigger CGT events. A valuation establishes the market value of interests before and after the restructure.

Small Business CGT Concessions

The ATO's small business CGT concessions can significantly reduce or eliminate tax on business sales. But eligibility depends on the net asset value test ($6M threshold) and the maximum net asset value test. A formal valuation is essential to demonstrate compliance.

Market Value Substitution Rules

Where transactions occur between related parties at non-arm's length prices, the ATO may substitute market value. This commonly arises in:

  • Transfer of business assets to a self-managed super fund (SMSF)
  • Sale of business interests between family members
  • Asset contributions to or from trusts

Death and Estate Planning

When a business owner dies, the business assets are deemed to be disposed of at market value for CGT purposes (unless a CGT rollover applies). A valuation at date of death is required for:

  • Calculating the CGT liability of the estate
  • Establishing the cost base for beneficiaries
  • Equalising distributions between beneficiaries

What the ATO Requires in a Valuation

The ATO has published detailed guidance (Tax Ruling TR 2023/4 and associated practice statements) on what constitutes an acceptable valuation for tax purposes.

Key requirements:

  • Independence — the valuer must be independent and free from conflicts of interest
  • Methodology — the valuation must use recognised methodologies applied consistently
  • Documentation — the valuation report must document all assumptions, sources, and reasoning
  • Date-specific — the valuation must be as at a specific date (the valuation date)
  • Scope-appropriate — the valuation must address the specific CGT event or purpose

A self-prepared valuation or a broker's opinion does not meet ATO standards and will likely be challenged.


Business Succession and Intergenerational Transfer

One of the most complex valuation scenarios. When transferring a business to the next generation, multiple factors come into play:

Discounts for Minority Interests

If a parent transfers a minority stake to a child, the value of that stake is typically discounted (minority discount) because the recipient doesn't have control. Discounts of 15-35% are common depending on the level of control transferred.

Lack of Marketability

Private company shares are inherently less marketable than public company shares. A discount for lack of marketability (typically 10-30%) is applied to reflect the difficulty of selling a minority stake in a private business.

Retained Control

If the parent retains control while transferring minority stakes, the retained interest may attract a control premium, while the transferred interests attract minority discounts. The valuation must capture both effects.


Common Mistakes in Tax Valuations

Using the Wrong Valuation Date

The valuation must be as at the specific date of the CGT event, not a date convenient for the valuer. Even small date differences can materially affect the result.

Ignoring ATO Guidelines

The ATO publishes safe harbour valuation guidelines for certain scenarios. Valuations that depart from these guidelines without justification are more likely to be scrutinised.

Inconsistent Methodology

Using different methodologies for related valuations (e.g., valuing the business and then valuing individual assets) without reconciling the results.

Failing to Document Assumptions

The ATO can request supporting documentation for any assumption in the valuation. Unsupported assumptions weaken the valuation's defensibility.

For a practical guide to using Excel for financial analysis in tax compliance contexts, see Excel Forensic Accounting Part 2 at ExcelWiz.com.au.


Conclusion

Tax and estate planning valuations require a higher standard of rigour than commercial valuations because they face potential ATO scrutiny. Engaging a qualified valuer with experience in tax valuations is essential for peace of mind and compliance.

At BizVal, our valuations are prepared in accordance with professional standards and ATO guidelines, suitable for CGT, estate planning, and compliance purposes. Contact us to discuss your requirements.


Frequently Asked Questions

Can I use a valuation from my accountant?

If your accountant has the appropriate valuation expertise and independence, yes. Many accounting firms have specialist valuation teams. However, if your accountant also prepares your tax returns and financial statements, independence issues may arise.

How far back can the ATO challenge a valuation?

The ATO generally has 4 years to review a valuation from the date the related tax return is lodged. In cases of fraud or evasion, this period extends to 6 years. Keep your valuation reports indefinitely.

Do I need a new valuation for each CGT event?

Generally yes, each CGT event requires a valuation as at its specific date. However, a single valuation report can cover multiple related events if they occur at the same time.

What's the difference between a valuation for tax and a valuation for sale?

Tax valuations must comply with ATO guidelines and legal precedent, emphasising defensibility. Sale valuations may place more weight on market evidence and negotiated outcomes. The same methodology is used, but the emphasis and documentation differ.