For Australian property investors and accountants, ATO compliance is the foundation of any depreciation schedule. While much of the industry conversation continues to focus narrowly on whether a physical inspection has taken place, the reality is that inspection methodology is only one element of a much broader compliance framework.
The Australian Taxation Office (ATO) does not mandate inspections in all circumstances. Instead, it requires that depreciation claims are:
- prepared by appropriately qualified professionals,
- based on reasonable and supportable estimates, and
- underpinned by verifiable evidence suitable for audit.
This position is supported by the Income Tax Assessment Act 1997 (ITAA 1997) and relevant ATO rulings governing capital works and plant and equipment deductions.
At Capital Claims, our approach to inspections — and depreciation schedules more broadly — reflects a deep understanding of these requirements.
Do You Need a Physical Inspection for ATO Compliance?
Short answer: not always.
There is no ATO ruling, determination or legislation that states a physical inspection is mandatory for every depreciation schedule.
Under Division 43 and Division 40 of ITAA 1997, the ATO requires that construction costs and depreciable assets be determined on a reasonable basis. Where actual costs are unavailable, the ATO explicitly allows estimates prepared by a qualified quantity surveyor.
This principle is supported by:
- Taxation Ruling TR 97/25, which confirms that construction cost estimates prepared by a quantity surveyor are acceptable where actual costs are not known.
- ATO guidance (QC 33771), which states that investors can use a quantity surveyor to estimate construction costs for depreciation purposes.
As outlined in our article Do I Need an Inspection for My Depreciation Schedule?, many properties can be assessed accurately and compliantly without an on-site visit:
https://www.capitalclaims.com.au/do-i-need-an-inspection-for-my-depreciation-schedule/
This position is also acknowledged by other established firms, including Washington Brown:
https://www.washingtonbrown.com.au/blog/3-reasons-why-you-may-not-need-a-depreciation-inspection/
How Capital Claims Produces Inspection-Free Reports That Are Audit-Ready
Where a physical inspection does not add material value, Capital Claims relies on multiple independent and verifiable sources of evidence, consistent with ATO expectations of reasonable investigation.
These include:
- Up-to-date internal and external property photographs
- Online sale and leasing imagery
- Paid professional property data subscriptions
- Development Application (DA) and Construction Certificate (CC) records
- Builder, developer and strata documentation
- Construction plans, specifications and asset schedules
- Historical property imagery (including Google Maps and archived listings)
This evidence base aligns with the ATO’s expectation that depreciation schedules be capable of substantiation if reviewed, regardless of whether an inspection occurred.
Why an Inspection Alone Is Not a Compliance Guarantee
A physical inspection, in isolation, does not guarantee ATO compliance.
For example:
- Large developments rely on the inspector identifying assets across many buildings and levels
- Common property assets may not be visible or accessible
- Prior renovations may not be obvious at the time of inspection
- Asset identification depends heavily on individual judgement
In contrast, developer documentation and construction records often provide a more complete and reliable asset picture, particularly for Division 43 capital works.
Notably, many “virtual inspection” methodologies still rely on:
- Council planning records,
- Desktop research, and
- Historical imagery
This reinforces that evidence quality, not inspection type, is the key compliance consideration.
Only Providing Costs When You Have Them (And Why That’s ATO-Compliant)
A frequent misconception is that investors must supply actual construction costs to claim depreciation.
The ATO’s position is clear:
- Where actual costs are known, they should be used
- Where costs are unknown, a qualified quantity surveyor may estimate them
This is explicitly recognised in:
- TR 97/25
- ATO Guide to Depreciation (QC 33771)
This applies particularly to:
- Established properties,
- Properties purchased from previous owners, and
- Older developments with missing records
Capital Claims’ estimates are prepared using accepted quantity surveying methodologies and documented assumptions, satisfying the ATO’s requirement for reasonable and supportable estimates.
Back-Claiming Depreciation: What Investors Need to Know
The ATO allows investors to back-claim missed depreciation deductions, generally by amending prior-year tax returns.
However:
- Claims must be supported by a compliant depreciation schedule
- The schedule must reflect the property’s condition and income-producing use in each year claimed
- Estimates must be based on proper investigation
Back-claiming without a professionally prepared schedule does not meet the ATO’s substantiation expectations.
Why You Cannot Use a Depreciation Schedule from a Previous Owner
Depreciation schedules are owner-specific and cannot be transferred.
Under Division 40 ITAA 1997:
- Plant and equipment assets are re-valued at acquisition
- Deductions depend on the new owner’s cost base and usage
Additionally:
- Renovation history,
- Asset disposals, and
- Income-producing use
all differ between owners. Using a previous owner’s schedule is therefore non-compliant.
Depreciation Estimates Must Be Based on Proper Investigation
The ATO expects depreciation schedules to be based on:
- Genuine investigation,
- Appropriate evidence, and
- Professional judgement
Schedules based on generic assumptions or templated figures may fail ATO scrutiny. This aligns with the ATO’s broader compliance approach under Subdivision 900-E ITAA 1997, which governs record-keeping and substantiation.
Claims that another firm can simply “review” an existing report rarely add value, as the underlying evidence and investigation process remains unchanged.
Accountants Cannot Estimate Construction Costs Under ATO Rules
While accountants play a critical role in applying depreciation outcomes, the ATO does not recognise accountants as qualified to estimate construction costs.
The ATO consistently refers to quantity surveyors as the appropriately qualified professionals for construction cost estimation, as reflected in:
- TR 97/25
- ATO depreciation guidance materials
Schedules relying on estimates prepared by non-qualified parties may be challenged in an audit.
Low-Cost and Low-Value Pooling Must Be Applied Correctly
ATO compliance also requires correct application of:
- Immediate write off rulings
- Low-cost asset pooling and low-value pooling rules under Subdivision 40-E ITAA 1997, and
- Appropriate depreciation rates
Guidance on pooling is supported by:
- Taxation Ruling TR 2018/5, which outlines effective lives and pooling considerations
Incorrect pooling can materially distort deductions and raise compliance concerns.
Other Key Factors the ATO Looks at When Assessing Depreciation Compliance
Beyond inspections, the ATO may examine several technical factors when reviewing depreciation claims.
Accurate Asset Identification and Classification
Misclassification can result in incorrect depreciation rates and may trigger adjustments.
Assets must be correctly identified and classified under:
- Division 40 (plant and equipment), and
- Division 43 (capital works)
Misclassification can result in incorrect depreciation rates and may trigger adjustments.
Treatment of Scrapped, Replaced or Renovated Assets
The ATO allows deductions for scrapped assets where appropriate, as outlined in:
- ATO Interpretative Decision ATO ID 2002/648
However:
- Assets must be correctly identified,
- Remaining values must be reasonably calculated, and
- Claims must be supported by evidence
Appropriate Use of Effective Lives and Depreciation Methods
The ATO expects effective lives to be applied in accordance with:
- Taxation Ruling TR 2019/5, which sets out effective lives for depreciating assets
The chosen method of depreciation (prime cost or diminishing value) must also be applied consistently.
Depreciation Estimates Are Not ATO Compliant (and Can Trigger an Audit)
We’ve become aware that some investors don’t realise that depreciation estimates are not sufficient for completing a tax return. An estimate—whether generated online, provided verbally, or included as a “range” in a preliminary assessment—cannot be used as evidence to substantiate a claim with the ATO.
The ATO’s substantiation rules require taxpayers to keep accurate records and evidence to support all deductions. For depreciation, this means having a complete, itemised, and professionally prepared depreciation schedule that details:
- Construction costs or Division 43 capital works values
- Plant and equipment assets and their opening values
- Effective life calculations
- Methods used to determine decline in value
- Evidence supporting all assumptions
An estimate does not meet these requirements.
A Real World Risk: When Investors Use Estimates in Their Tax Return
We are increasingly aware of cases where investors have:
Used the figures from a depreciation estimate to complete their tax return, and been audited by the ATO, only to discover that the estimate is not acceptable evidence.
In these situations, the investor is then required to:
- Purchase a complete, compliant depreciation schedule, and
- Provide the ATO with the detailed substantiation that should have been obtained before lodging.
This can create unnecessary stress, delays, and additional cost—especially if the ATO requests supporting documentation within a short timeframe.
Why Estimates Are Not Enough
Depreciation estimates are designed for initial feasibility, not compliance. They:
- do not include asset level detail
- do not document evidence sources
- do not provide effective life calculations
- do not create an audit trail
- do not meet the ATO’s recordkeeping requirements
The ATO expects taxpayers to be able to justify every figure in their return. Without a full schedule, the investor cannot demonstrate how the depreciation amounts were calculated.
ATO Expectations Are Clear: Substantiation Is Mandatory
The ATO’s guidance on depreciating assets emphasises the need for:
- accurate calculations,
- reasonable estimates only where appropriate, and
- records that explain how values were determined.
A depreciation estimate does not satisfy these obligations because it does not document the underlying evidence or methodology.
The Safer Approach for Investors and Accountants
To avoid audit risk and ensure full compliance, investors should always:
- obtain a complete depreciation schedule before lodging their tax return
- ensure the schedule is prepared by a qualified quantity surveyor
- ensure the schedule includes verifiable evidence and a clear audit trail
This protects the investor, the accountant, and the integrity of the tax return.
Experience, Qualifications and Registration Matter
ATO-compliant depreciation schedules should be prepared by:
- experienced quantity surveyors, and
- registered tax agents
This ensures correct interpretation of tax law, defensible methodologies and schedules that investors and their accountants can rely on with confidence. Accountants are not recognised by the ATO as qualified for construction costing and asset valuation.
Key Takeaway for Investors and Accountants
A physical inspection may be appropriate in some circumstances — but it is not the determining factor of ATO compliance.
What truly matters is:
- professional qualification,
- robust investigation,
- verifiable evidence, and
- correct application of ATO legislation and rulings.
Capital Claims’ approach reflects this broader compliance framework, ensuring depreciation schedules are accurate, defensible and audit-ready, whether an inspection occurs or not. Request your depreciation quote or speak with our team on 1300 922 220.
Get a Free Quote for a Depreciation Schedule.
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