Register For Our Mailing List

Register to receive our free weekly newsletter including editorials.

Home / 615

Things you must consider before subdividing a property

With property prices rising and demand for housing increasing, many homeowners are exploring the idea of property development, often literally in their own backyards.

Subdividing is frequently the first step for those starting out in property development. This may be subdividing your own property or knocking down an old property and subdividing the land.

Subdivision can offer substantial financial rewards but it also comes with legal, planning, and taxation considerations that must not be overlooked. Here, we outline some important considerations:

What does subdividing involve?

Subdividing typically means splitting a single residential block into two or more lots, often to build and sell, or to retain a dwelling. This process requires council approval and adherence to zoning, access rights, and minimum lot size regulations. Property owners planning to subdivide will need to engage a surveyor, town planner, and sometimes a solicitor or conveyancer to guide their projects through planning permits, subdivision plans and titles registration.

[For more information, by state/territory: Australian Capital Territory, New South Wales, Northern Territory, Queensland, South Australia, Tasmania, Victoria, Western Australia]

Tax implications to consider

Before proceeding, it’s also crucial that developers understand how the Australian tax system treats subdivisions and property developments. The relevant taxes here include:

1. Goods and Services Tax (GST): When you subdivide with the intent to sell for profit (especially if you have constructed a new dwelling), the ATO may classify your activity as an ‘enterprise’. This means you may be required to register for GST, complete Business Activity Statements and remit 1/11th of the sale price to the ATO. Importantly, you will also be able to claim GST on the construction costs while completing the development. GST implications are particularly relevant if you are developing more than one property or operate in a business-like manner. The need to manage GST is a consideration that we frequently see first time developers misunderstand or miss altogether in their planning.

2. Capital Gains Tax (CGT): When you sell a subdivided portion of your land, CGT may apply. While your main residence is generally exempt from CGT, this exemption may not apply to the portion being sold, especially if it’s no longer part of your primary residence or, if it’s used to generate income. If you have already subdivided your main residence in the past, this will also be considered as an important factor when capital gains are calculated. Depending on your type of subdivision, market value uplifts can apply to the cost base of the property for CGT purposes.

3. Income Tax: The profits you make from your subdivision can be treated as either a capital gain or ordinary income, depending on your intentions. If the ATO determines your actions amount to property development, the profits may be taxed as income, at your marginal tax rate, rather than under the more concessional CGT regime.

4. Stamp Duty: Your subdivision itself doesn’t trigger stamp duty – but it may be applied if you transfer newly created titles (for example, to a trust or related entity).

Planning and unexpected costs

In our experience, planning for these unexpected taxes is absolutely critical in your overall property development preparation, and it’s a step often overlooked by new developers.

Before undertaking a property development, you must consider what your intentions will be once the development is complete. This may be retaining the property to live in, selling the property at completion, or retaining to earn rental income. Each scenario will have differing CGT, GST and tax outcomes. It’s equally important that you also forecast for unexpected costs that can occur during the development, such as the rising construction costs currently being experienced.

Seek professional advice

Given the complexity of taxes involved, we strongly recommend that you speak to a tax advisor or accountant who is experienced in property development before you undertake a subdivision. Proper structuring and planning can help minimise your tax and avoid costly surprises.

While subdividing your property for development can be a lucrative opportunity, it’s important to understand the tax consequences and to make informed decisions to help you maximise your return and minimise your exposure to tax obligations and other unforeseen costs.

 

Danielle Hart, CPA is an Associate Director and Daniel Walachowski, CA is a manager at Marin Accountants. This article is for general information only. It does not consider any of your personal objectives, financial situation or needs. Before taking any action, you should seek appropriate professional advice.

 

  •   11 June 2025
  • 1
  •      
  •   

RELATED ARTICLES

When you can withdraw your super

Super, death and taxes – time to rethink your estate plans?

Australian housing is twice as expensive as the US

banner

Most viewed in recent weeks

How cutting the CGT discount could help rebalance housing market

A more rational taxation system that supports home ownership but discourages asset speculation could provide greater financial support to first home buyers.

Is there a better way to reform the CGT discount?

The capital gains tax discount is under review, but debate should go beyond its size. Its original purpose, design flaws and distortions suggest Australia could adopt a better, more targeted approach.

Want your loved ones to inherit your super? You can’t afford to skip this one step

One in five Australians die before retirement and most have not set up their super properly so their loved ones can benefit from all their hard work and savings. 

Super is catching up, but ageing is a triple-threat

An ageing Australia is shifting the superannuation system’s focus from accumulation to the lifecycle of retirement. While these pressures have been anticipated for decades, they are now converging at scale and driving widespread industry change.

Has Australia wasted the last 30 years?

The 20 years after Peter Costello left Treasury have been deemed wasted...by Peter Costello. The missed opportunities for Australia began long before.  

Meg on SMSFs: Last word on Div 296 for a while

The best way to deal with the incoming Division 296 tax on superannuation is likely doing nothing. Earnings will be taxed regardless of where the money sits, so here are some important considerations.

Latest Updates

Taxation

3 ways to defuse intergenerational anger

With the upcoming budget increasingly likely to include bold proposals to alter the tax code I’ve outlined three incremental steps with fewer unintended consequences.

Economy

Why an extended US-Iran war will punish mortgage holders

The impact of the Iran War is far more than expensive petrol. Higher oil prices have secondary inflationary impacts that reverberate throughout the economy which could be bad news for Australians with mortgages.

Infrastructure

Don’t forget the yield

Global Listed Infrastructure dividends are forecast to grow 5-6% p.a over the next two years. After a hiatus, share buybacks are back on the agenda and will play an integral role in shareholder returns.

Iran war hands politicians free ticket to blame oil prices for inflation

Past oil shocks offer lessons for investors dealing with the fallout from the Iran War and the ongoing impact on inflation.

Economy

Japan 2026: A new PM heralds a new golden age?

Former Australian Prime Minister, Paul Keating, once said "When you change the government, you change the country." We're about to see whether that holds true in Japan.

Investment strategies

Why are central banks moving from US Treasuries to gold?

Central banks now hold more gold reserves than US Treasuries, signalling a shift in safe-haven asset strategy and portfolio diversification as geopolitical risks increase.

Strategy

Has global human wellbeing peaked? What the data reveals

Historically economic progress is measured by GDP growth but there is an increasing body of work that explores quantitative measures of wellbeing.

Sponsors

Alliances

© 2026 Morningstar, Inc. All rights reserved.

Disclaimer
The data, research and opinions provided here are for information purposes; are not an offer to buy or sell a security; and are not warranted to be correct, complete or accurate. Morningstar, its affiliates, and third-party content providers are not responsible for any investment decisions, damages or losses resulting from, or related to, the data and analyses or their use. To the extent any content is general advice, it has been prepared for clients of Morningstar Australasia Pty Ltd (ABN: 95 090 665 544, AFSL: 240892), without reference to your financial objectives, situation or needs. For more information refer to our Financial Services Guide. You should consider the advice in light of these matters and if applicable, the relevant Product Disclosure Statement before making any decision to invest. Past performance does not necessarily indicate a financial product’s future performance. To obtain advice tailored to your situation, contact a professional financial adviser. Articles are current as at date of publication.
This website contains information and opinions provided by third parties. Inclusion of this information does not necessarily represent Morningstar’s positions, strategies or opinions and should not be considered an endorsement by Morningstar.