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Property Tax Changes · Koste Knowledge Base

How Should Investors Compare New Builds and Established Property After the Tax Changes?

Published 26 June 2026 · Last updated 19 August 2026

Quick Answer

Investors now need to compare new and established property using after-tax cash flow, depreciation, CGT, borrowing costs and long-term growth. New builds may receive more favourable negative gearing treatment, but established properties may still have strong investment fundamentals.

The legislated negative gearing changes make the new versus established property decision more financially significant than it has been in decades.

New builds may offer: continued negative gearing eligibility, full plant and equipment depreciation deductions under Division 40 of ITAA 1997, stronger early depreciation profiles, clearer construction cost records for Division 43 capital works, and potential builder or developer depreciation estimates.

Established properties may offer: better location in some markets, a higher land component relative to improvements, renovation potential with its own depreciation and capital works entitlements, existing rental history, capital works from previous renovations, common property deductions in strata buildings, and potentially a lower entry price.

The right answer depends on the investor individual goals. The framework for comparison must now include negative gearing eligibility, not just purchase price and yield. Investors should consider rental yield, vacancy risk, debt cost, depreciation, their own tax position, growth potential, land value, body corporate costs, repair costs, exit strategy, and long-term CGT treatment.

In our experience preparing depreciation schedules for both new and established properties, the depreciation difference is often less dramatic than marketing suggests. New properties have more plant and equipment, but established properties with recent renovations or common property improvements can still carry meaningful deductions. The key is getting an accurate schedule.

What to do next:

  • Get a depreciation estimate for both properties before comparing.
  • Ask your accountant to model after-tax cash flow for each scenario.
  • Check whether the established property has recent renovations that may attract capital works deductions.
  • Compare land value, rental yield, vacancy rate, and body corporate fees — not just tax treatment.
  • Contact Koste for a depreciation estimate on any property you are considering.
  • Frequently Asked Questions

    Are new builds now better for tax?

    They may be more favourable under the legislated negative gearing rules, but tax should not be the only factor in an investment decision.

    Do established properties still have depreciation?

    Yes. Established properties may have capital works from construction and previous renovations, new assets purchased during ownership, and common property deductions in strata buildings.

    Should I avoid established property?

    Not necessarily. Location, growth, rent and price still matter. The after-tax difference may be smaller than expected once the full analysis is done.

    Can Koste compare depreciation for both properties?

    Yes. Koste can prepare depreciation estimates or full schedules for both new and established properties so you and your accountant can make an informed comparison.

    Should I speak with an accountant before buying?

    Yes. The after-tax outcome depends on your personal tax position, income level, debt structure and investment goals.

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    Written by Koste Team · Koste Chartered Quantity Surveyors · AIQS Member · RICS Member · TPB Registered · 1300 669 400 · info@koste.ai