Not All Renovations Save You Tax. This Guide Shows Where Investors Lose Money.
Division 40 and Division 43 are treated differently. Eligibility and disposal consequences depend on the asset and the investor's circumstances.
The Two Bucket Model
All property deductions fall into two categories. Click items to see the difference.
Bucket A
Plant & Equipment
Separate treatment applies. Eligibility, balancing adjustments and disposal consequences depend on the asset and circumstances.
Bucket B
Borrowed Tax Savings
The ATO adds these back when you sell. They increase your capital gain.
The Critical Rule That Costs Investors Thousands
Division 43 Timeline
You claim deductions during ownership
Capital works deductions can reduce the CGT cost base
Your capital gain gets BIGGER
Division 40 Timeline
You claim deductions during ownership
Balancing and disposal treatment depends on the asset
Final treatment should be reviewed by a tax adviser
This is the core investor insight: Division 40 and Division 43 follow different rules, so both the annual claim and disposal treatment need to be assessed correctly.
Why Maximising Division 40 Is Critical
If you miss an eligible item, you may miss deductions that should have been reviewed and documented.
Investor A
Claims All Div 40 Assets
Investor B
Misses $20k of Div 40
Missing Div 40 Assets Costs You Twice
You lose yearly tax deductions AND you can never recover them later. This is why professional identification is essential.
Residential vs Commercial CGT
The type of property changes your CGT exposure significantly.
Residential Property
Held for more than 12 months? You get a 50% discount on your capital gain.
Important: Div 43 add-backs still increase your gain before the discount applies.
Example Capital Gain:
$200,000
Tax treatment:
Depends on ownership, eligibility, holding period and marginal tax rate
After 50% discount applied
Hidden Rule Unlocked
For second-hand residential properties only
Second-hand Division 40 Review
When you buy a second-hand residential property, yearly Division 40 deductions on previously used assets may be restricted and require review
The treatment of restricted amounts on disposal requires review; there may be CGT consequences depending on the circumstances
Keep asset and acquisition records so your tax adviser can determine the correct treatment
Old Air Con
Crossed-out: No yearly claim
Old Carpets
Crossed-out: No yearly claim
Old Blinds
Crossed-out: No yearly claim
At Sale: CGT Consequences May Apply — Seek Advice
Koste documents relevant asset values so your tax adviser can review the treatment that may apply on disposal.
See The Impact Yourself
Understand what is needed for a reliable estimate
Property details
Property type, construction date, floor area, location and finish quality.
Asset history
Acquisition date, prior use, ownership structure, renovations and installed assets.
Professional review
Effective lives, eligibility and disposal treatment must be assessed rather than inferred from spend alone.
Why there is no spend-only estimate
Dividing spend by a standard number does not account for asset-specific effective lives, depreciation methods, first-year timing, previous use or Division 40 restrictions. Use Koste's full calculator or request a professional schedule for an indicative estimate based on sufficient inputs.
Key Takeaway
Division 43 can affect the CGT cost base, while Division 40 follows separate balancing-adjustment and disposal rules. Actual treatment depends on many factors and should be reviewed by a qualified tax adviser.
How Koste Helps You Get Every Dollar Right
Professional identification ensures you never miss Div 40 assets or overpay CGT
Identifies Every Div 40 Item
Even hidden ones. Professional quantity surveyors identify assets and assess which deductions may be available.
Calculates Div 43 vs Div 40 Correctly
An accurate split supports the accountant's review of annual deductions and any CGT cost-base consequences.
Audit-Ready CGT Documentation
Complete depreciation schedules and CGT calculations that protect you at sale time and during ATO audits.
Division 40 Plant and Equipment Depreciation: Complete Guide for Australian Property Investors
Division 40 of the Income Tax Assessment Act 1997 governs the depreciation of plant and equipment in investment properties. Understanding how to maximise these deductions can significantly improve your investment property's cash flow. This guide explains everything you need to know about Division 40 depreciation.
What is Division 40 Depreciation?
Division 40 covers the depreciation of "depreciating assets"—items that have a limited effective life and can reasonably be expected to decline in value over time. In the context of investment properties, this includes removable fixtures and fittings such as air conditioning units, carpet, blinds, ovens, and hot water systems.
Unlike Division 43 (which covers structural elements at a fixed 2.5% rate), Division 40 items depreciate at rates determined by their "effective life"—the period over which the asset is expected to be used. Shorter effective lives mean faster depreciation and larger annual deductions.
The ATO publishes a schedule of effective lives for common assets, which quantity surveyors use when preparing depreciation schedules. For example, carpet has a 10-year effective life, while a dishwasher has a 10-12 year effective life.
Common Division 40 Items in Investment Properties
A typical residential investment property contains dozens of depreciating assets. Here are the most valuable categories:
Kitchen Items
- Oven and cooktop (10-15 year effective life)
- Rangehood (10 years)
- Dishwasher (10-12 years)
- Garbage disposal unit (10 years)
Climate Control
- Split system air conditioners (10 years)
- Ducted air conditioning (15-20 years)
- Ceiling fans (10 years)
- Electric heaters (10 years)
Floor Coverings and Window Treatments
- Carpet (10 years)
- Vinyl flooring (10 years)
- Blinds (10 years)
- Curtains and tracks (10 years)
Other Common Items
- Hot water system (12 years)
- Smoke detectors (10 years)
- Light fittings and switches (10 years)
- Door closers and locks (10 years)
- Exhaust fans (10 years)
- TV antenna (10 years)
Depreciation Methods: Diminishing Value vs Prime Cost
For Division 40 assets, you can choose between two depreciation methods:
Diminishing Value Method
This method uses the asset's opening adjustable value and generally produces higher deductions in earlier years that decrease over time. The applicable effective life, start date, eligibility and first-year pro-rating must all be included in a reliable calculation.
Prime Cost Method
This method generally spreads eligible cost evenly over the asset's effective life. The actual schedule still depends on the asset classification, acquisition timing, previous use and the taxpayer's circumstances, so a spend-only calculation is not shown here.
2017 Legislative Changes: What You Need to Know
From 1 July 2017, significant changes were introduced that affect Division 40 deductions for residential investment properties. These changes were designed to improve housing affordability but significantly impact investors.
Key Changes
- Previously used plant and equipment in residential property may be restricted, depending on the acquisition and taxpayer circumstances
- New assets installed by the investor may remain eligible, subject to the ordinary rules
- There may be CGT consequences on disposal depending on the circumstances
- Brand-new property is generally treated differently, but eligibility still requires review
Important Exceptions
- Commercial properties are completely exempt from these restrictions
- Properties acquired before 9 May 2017 retain their existing depreciation entitlements
- New items you install may remain eligible subject to the ordinary rules
- Division 43 (building structure) deductions are unaffected
Strategies to Maximise Division 40 Deductions
Despite the 2017 changes, there are still excellent strategies to maximise your Division 40 deductions:
- Buy new or off-the-plan: All Division 40 items in brand new properties remain fully depreciable
- Renovate strategically: Any items you install new are fully depreciable, even in older properties
- Document everything: Keep receipts for all items you install to support depreciation claims
- Consider commercial: Commercial properties are exempt from the 2017 restrictions
- Get a schedule immediately: The earlier you start claiming, the more value you capture
Frequently Asked Questions About Division 40
What's the difference between Division 40 and Division 43?
Division 40 covers removable plant and equipment (carpet, appliances, air conditioning), while Division 43 covers the building structure itself (walls, floors, roofs). Division 40 items have shorter effective lives and depreciate faster.
Can I claim Division 40 on a second-hand property?
For residential property acquired after 9 May 2017, deductions for previously used Division 40 assets may be restricted. New assets you install may remain eligible, while entity exceptions, prior use and acquisition timing should be reviewed for your circumstances.
Which depreciation method should I choose?
Most investors choose the diminishing value method because it provides higher deductions in the early years when cash flow benefits are most valuable. The total deduction is the same under both methods.
Do I need receipts for Division 40 items?
For items you install yourself, receipts are essential documentation. For existing items in new properties, a quantity surveyor can estimate values based on inspection and construction data.
How do the 2017 changes affect commercial properties?
Commercial properties are completely exempt from the 2017 changes. All Division 40 items in commercial properties—whether new or second-hand—remain fully depreciable.
Conclusion: Maximise Your Division 40 Deductions
Division 40 plant and equipment depreciation represents one of the most valuable tax benefits available to property investors. While the 2017 changes have limited some deductions for second-hand residential properties, significant opportunities remain for those who purchase new properties, complete renovations, or invest in commercial real estate.
A professional depreciation schedule prepared by a qualified quantity surveyor is essential to capture all available Division 40 deductions. The cost of the schedule is tax-deductible and typically pays for itself many times over through increased deductions.
Sources: Australian Taxation Office, Income Tax Assessment Act 1997, Tax Ruling TR 2017/2. Data current as of 2024.
Disclaimer: This article provides general information only and does not constitute tax advice. Please consult with a qualified tax professional for advice specific to your circumstances.
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