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How to Claim Renovations on Your Investment Property | ATO Guide

Renovations can generate substantial tax deductions — but only if you claim them correctly. This guide covers what's immediately deductible, what's depreciated, and how to avoid costly mistakes.

Renovations and Your Tax Return

Renovating an investment property can significantly increase its rental value and capital growth potential. What many investors don't realise is that renovations also generate substantial ongoing tax deductions — if you claim them correctly.

Getting the tax treatment of renovations wrong is a common and costly mistake. This guide explains exactly what you can claim and how.

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Immediate Deductions vs Depreciation

Not all renovation expenses are treated the same way by the ATO. There are three categories:

1. Immediately Deductible Repairs and Maintenance

Repairs — restoring something to its original condition — are immediately deductible in the year the expense is incurred.

Examples of repairs:

  • Fixing a broken fence (not replacing the entire fence)
  • Patching a leaking roof (not replacing the entire roof)
  • Replacing a broken door handle
  • Repainting a room (maintenance, not a full building repaint)
Key test: If you're restoring something to its original condition, it's a repair. If you're improving it beyond its original condition, it's a capital improvement.

2. Division 43 — Capital Works Depreciation

Structural improvements and the cost of new construction work are claimed as Division 43 capital works at 2.5% per year for 40 years.

Examples:

  • Adding a new room or extension
  • Installing a new bathroom or kitchen structure
  • Replacing a roof (the entire roof, not just patching)
  • Building a deck, carport, or pergola
  • Installing fixed flooring (tiles, hardwood — not carpet)
  • Constructing a swimming pool
Example: You spend $40,000 on a new bathroom — tiling, plumbing, vanity cabinets (fixed), shower screen. The annual Division 43 deduction is $1,000 (2.5% × $40,000) for up to 40 years.

3. Division 40 — Plant and Equipment Depreciation

Removable assets you install during a renovation are depreciated under Division 40.

Examples:

  • New carpet
  • Hot water system
  • Air conditioning units
  • Dishwasher
  • Exhaust fans
  • Blinds and curtains
  • Ceiling fans
These are depreciated at the ATO's effective life rate, typically using the diminishing value method.

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The Initial Repair Rule

If you buy a property that needs work, the ATO may deny an immediate deduction for repairs carried out shortly after purchase. These are called "initial repairs" and are treated as capital expenses — even if they look like repairs.

The ATO's position: If the property was in a state of disrepair when you purchased it and you factored this into the price, the cost of fixing it is not a repair — it's part of the cost of acquiring the property.

Initial repairs are added to the cost base of the property and treated as a capital works claim. Getting this wrong is a common audit trigger.

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Why You Need a Quantity Surveyor for Major Renovations

If you've spent $30,000 or more on renovations, a Chartered Quantity Surveyor can:

  • Correctly categorise all expenses between immediately deductible, Division 40, and Division 43
  • Prepare an ATO-compliant depreciation schedule for the newly installed assets
  • Add the renovation to your existing schedule if you already have one
  • Ensure the Audit Support Pack documents the work for future ATO scrutiny
  • Koste can review your renovation invoices and prepare an updated schedule. In many cases, we can increase your annual depreciation deductions by $1,500–$5,000 per year from renovations that were previously not claimed at all.

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    Common Renovation Mistakes

    1. Treating capital improvements as repairs Replacing your entire kitchen is not a repair — it's a capital improvement. Claiming it as an immediate deduction is incorrect and an audit risk.

    2. Ignoring the depreciation on new fixtures and fittings Many investors renovate and simply expense the entire cost. If the work included new carpet, appliances, or hot water systems, those should be on a Division 40 schedule.

    3. Not updating your depreciation schedule after renovating If your accountant is using your original depreciation schedule from when you purchased, it won't include any of the renovations. You need an updated report.

    4. Missing the Division 43 on an extension Every structural addition generates Division 43 deductions. These add up significantly over a 20–40 year investment horizon.

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    Getting Started

    Use our Renovation Cost Calculator to estimate your renovation's total cost, then speak with Koste about an updated depreciation schedule that captures all your new deductions.

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    About Koste Chartered Quantity Surveyors

    Koste is Australia's specialist tax depreciation and quantity surveying firm. AIQS Member · RICS Member · Tax Practitioners Board registered.

    Over 40,000 reports prepared. ATO-compliant schedules accepted by all major accounting firms across Australia.

    Koste Chartered Quantity Surveyors  ·  1300 669 400  ·  info@koste.ai  ·  Robina QLD 4226