What the data showed us

Headline findings from the report. The full PDF includes charts, methodology notes, and chapter-level breakdowns.

1,000

Properties analysed

A representative cross-section of MCG client tax depreciation schedules: residential, commercial, mixed-use, new build and existing, across all Australian states and territories.

~50%

Year-one deduction variance

Year-one deductions varied widely between otherwise comparable properties - the report explains the build-quality, plant-and-equipment, and rule-of-construction reasons why.

3 eras

Build era matters more than expected

The data shows three distinct build eras producing materially different depreciation profiles for investors. Choosing within or across eras has real cash-flow consequences.

Div 40

Plant & equipment is the swing factor

Division 40 (plant and equipment) deductions are the largest source of year-one deduction variance. Property selection, fitout, and post-2017 second-hand rules all play a role.

Div 43

Capital works runs the long tail

Division 43 (capital works) deductions dominate the 40-year deduction profile. The report includes mid-life and renovation patterns drawn from the sample.

$$$

Investor outcomes split sharply

The data shows a meaningful split in cash-flow outcomes for investors who treat the depreciation schedule as a strategic tool versus those who treat it as a tick-box compliance exercise.

How we built the dataset

The MCG 1000 Assets Report draws on a curated sample of 1,000 MCG client tax depreciation schedules, sampled to represent the breadth of MCG's QS work across residential, commercial, and mixed-use property; new build and existing; across all Australian states and territories.

All schedules were prepared by registered MCG quantity surveyors following ATO and AIQS standards, and underwent the same QA process as our standard client work. The data extraction and analysis was led by Mike Mortlock with the MCG data team.

Findings in the report are presented at the aggregate level only - no individual property, owner, or address is identifiable. The dataset and methodology have been described in enough detail for independent reviewers to understand exactly what the findings represent (and what they do not).

Where the report makes claims about the broader Australian property market, it does so cautiously and with appropriate caveats about sample composition.

Data Snapshot
What's in the sample

Sample size: 1,000 MCG client depreciation schedules

Geography: All 6 states + 2 territories

Property types: Residential (multiple), commercial (multiple), mixed-use

Build status: New build and existing

Build era: Three distinct construction eras represented

Schedule prep: All prepared by registered MCG QSs to ATO + AIQS standards

Privacy: All findings reported at aggregate level only

What's in the 40+ pages

The chapters investors and accountants tell us they spend the most time on.

The dataset and what it represents
Sample composition, geographic and property-type spread, and the limits of what the data can and can't tell us.
Year-one deductions: what drives the variance
The five biggest factors driving year-one deduction outcomes across the sample, with practical implications for property selection.
Division 40 vs Division 43 by build era
How the plant-and-equipment vs capital-works split shifts across the three identified build eras, and why it matters.
Build quality and the cost of cheap construction
What the data says about how build quality flows through into both depreciation outcomes and ongoing maintenance.
Mid-life refresh patterns
When and why properties tend to receive depreciation schedule refreshes, and what investors leave on the table when they don't.
Strategic vs compliance: the cash-flow split
The cash-flow gap between investors who use depreciation strategically and those who treat it as compliance.
What this means for the next 1,000
Mike's take on what the next thousand MCG depreciation schedules are likely to look like, and what the industry should be paying attention to.

Get the full 40+ page report

Free PDF, no payment required. We'll email the report and add you to the MCG mailing list (unsubscribe anytime). Australian property investors and industry only.

Mike Mortlock, Co-Founder and Managing Director of MCG Quantity Surveyors
Lead Author

Mike Mortlock

Co-Founder and Managing Director, MCG Quantity Surveyors

Mike Mortlock is the lead author of the MCG 1000 Assets Report. He is a registered tax agent, the co-founder of MCG Quantity Surveyors, and the host of the Geared for Growth property investing podcast. Mike sits on the AIQS Advisory Board and the PIPA Board, and is a regular property market commentator across Australian media.

Registered Tax Agent (TPB) AIQS Advisory Board PIPA Board
Last reviewed: 28 April 2026 · Originally published: November 2024 · Series: MCG Research