A Capital Gains Tax (CGT) valuation is a professional assessment of the market value of an asset – typically property – at a specific point in time, used to calculate the capital gain or loss when that asset is sold, transferred, or otherwise disposed of.

CGT is not a separate tax in Australia – it’s part of your income tax. A CGT valuation helps determine the difference between the asset’s cost base and its sale price, which is the taxable gain. A valuation is especially important when:

  • The original purchase price is unknown or undocumented
  • The asset was acquired before CGT was introduced (pre-1985)
  • The asset was inherited, gifted, or transferred between related parties
  • The property’s use changed (e.g. from principal residence to investment)
  • You’re applying CGT concessions or exemptions

Why Do You Need One?

You need a CGT valuation to:

  • Establish a fair and accurate cost base for the asset
  • Ensure compliance with Australian Taxation Office (ATO) requirements
  • Minimise tax liability by correctly identifying deductible costs
  • Support retrospective valuations for inherited or gifted assets
  • Avoid penalties for underreporting or overreporting capital gains

Without a proper valuation, you risk paying more tax than necessary—or triggering an audit.

The ATO requires that valuations be objective, supportable, and well-documented, preferably conducted by a qualified professional.

Why Estate?

We are highly experienced in undertaking Capital Gains Tax (CGT) valuations for residential, commercial, and investment properties, ensuring full compliance with Australian Taxation Office (ATO) requirements and accurate reporting under the Income Tax Assessment Act 1997. Our valuations are tailored to support a wide range of CGT scenarios, including retrospective assessments for inherited or gifted assets, change-of-use events, and transactions involving related parties. By applying robust methodologies – such as sales comparison, income capitalisation, and cost-based approaches – we deliver objective, supportable market valuations that help clients establish cost bases, minimise tax liabilities, and meet documentation standards for audit and lodgement.