The 2026–27 Federal Budget has introduced significant changes to Australia’s capital gains tax (CGT) regime, creating a stronger imperative for accurate rent-roll valuation in real estate businesses. As rent rolls are considered valuable business assets, these reforms have made professional valuation more critical than ever.

One of the most important changes is the removal of the long-standing 50% CGT discount, which will be replaced from 1 July 2027 with a system based on cost base indexation and a minimum 30% tax on capital gains. This shift means that, for many business owners, the taxable portion of any gain on disposal will be higher than under the previous rules, particularly where little or no cost base exists.

Rent rolls frequently fall into this category…because they are often built organically through business operations.

Under the new rules, indexation cannot significantly reduce the gain where the cost base is generally minimal, which can lead to a substantially larger taxable amount on sale. Consequently, establishing a clear and supportable market valuation becomes essential to determine the starting point for future CGT calculations.

Furthermore, the Budget reforms require businesses to distinguish between pre‑ and post‑1 July 2027 gains. Official guidance indicates that asset owners may need valuation evidence at the commencement date to apportion gains correctly. For rent roll owners, this means obtaining a formal valuation as at the transition date will be critical for tax compliance and audit support.

Additionally, valuation plays a strategic role. Knowing the current market value of a rent roll enables business owners to plan the timing of a sale, restructure ownership, or assess the financial impact of holding versus disposing of the asset under the new tax regime.

In summary, recent CGT changes significantly increase the importance of rent roll valuations in Australia.

They are no longer just a transaction tool but a vital component of tax planning..

Given the 1 July 2027 deadline, demand for rent roll valuations is expected to be overwhelming, as agents reset their notional rent roll cost base.