Your home is generally exempt from capital gains tax when it is your main residence, but partial tax can apply if it was used to produce income, and foreign residents may lose the exemption entirely after 30 June 2020. If the full exemption conditions are met, the Australian Taxation Office says no tax is paid on the capital gain and any capital loss is ignored.
By Panbo Ye, CFP® | FCPA | SSA® | Founder, Everglow
You're standing at the kitchen table with a sale contract open, working through the expected proceeds and wondering whether a tax bill will arrive later. The answer depends less on the fact that you sold a home and more on how you used the property, your residency status when the sale happens, and the records supporting your calculation.
Who this article is for: Australian homeowners, professionals, business owners, new migrants, returning Australians and property owners who have used their home for work, rent or short-term accommodation.
Currency note: This article reflects Australian rules, thresholds and regulator guidance current as at 10/2026.
Table of Contents
- Can You Sell Your Home Without Facing a Tax Bill
- How the Main Residence Exemption Works in Australia
- When Partial Capital Gains Tax Applies to Your Home
- Residency Status and What It Means for Your Exemption
- How to Calculate the Capital Gain and Reduce Your Taxable Amount
- What You Should Do Before Selling Your Home
Can You Sell Your Home Without Facing a Tax Bill
For many Australian homeowners, capital gains on home sale may be fully exempt when the property has been their main residence and the relevant conditions are satisfied. The Australian Taxation Office (ATO) describes a full exemption where the owner is an Australian resident, the dwelling has been the home of the owner and dependants for the whole ownership period, the property hasn't been used to produce income, and the land is 2 hectares or less. The ATO says that, in those circumstances, no tax is paid on the capital gain and a capital loss is ignored. Read the ATO's main residence exemption guidance.
That doesn't mean every home sale is automatically tax-free. A home office, a rented room, a granny flat, short-term accommodation or business use can create a taxable portion. A change from Australian tax residency to foreign residency can also affect the exemption even if the property was genuinely your family home.
Practical rule: Don't ask only, “Was this my home?” Ask, “How was each part of this property used, during which periods, and what was my residency status when I signed the sale contract?”
Who this article is for: Australian homeowners, professionals, business owners, new migrants, returning Australians and property owners who have used their home for work, rent or short-term accommodation.
Currency note: This article reflects Australian rules, thresholds and regulator guidance current as at 10/2026.
The distinction matters for a Sydney seller who has lived in the property for years but rented out a separate area after moving overseas. It also matters for a sole trader who has claimed business deductions for a dedicated room, or a migrant who bought a home while living in Australia and later sells it after becoming a foreign resident.
The sections below separate the full exemption from partial exemption, residency restrictions and the calculation process. For broader context, see Everglow's guide to capital gains tax and property in Australia.
How the Main Residence Exemption Works in Australia
The full main residence exemption is best understood as a set of connected conditions, not a general promise that every family home is tax-free. For an Australian resident, the property generally needs to satisfy the following requirements:
| Condition | What it means | Common pitfall |
|---|---|---|
| The dwelling was your home | The property was the home of you, your partner and dependants for the whole ownership period | Assuming ownership alone proves main residence use |
| The property wasn't used to produce income | The dwelling wasn't rented, used for business or otherwise used to earn assessable income | Treating a dedicated income-producing area as private use |
| The land is 2 hectares or less | The land meets the ATO's size condition | Assuming surrounding land is automatically exempt |
Dr Anya Sharma, a Sydney sole trader, buys a family home in Bondi Junction. She, her partner and dependants live there throughout the ownership period. She doesn't rent a room, operate her practice from the dwelling, or use the property to produce income, and the land is within the relevant limit.
On those facts, Dr Sharma may qualify for the full exemption. The ATO's position is that the capital gain is disregarded and any capital loss is ignored when the conditions are met. The outcome depends on the facts and supporting records, not solely on whether Dr Sharma describes the property as her principal residence.
A failure of one condition doesn't necessarily make the whole property taxable. The ATO recognises that a partial exemption may be available, with the taxable fraction changing according to the relevant use, area or period. That distinction is important because many homeowners assume the result is either fully exempt or fully taxable.
The practical test is simple to state but demanding to apply: your home, your use of it, your residency status and the land must all be examined together.
For a related discussion of a former home that becomes an income-producing property, read Everglow's explanation of the six-year rule.
When Partial Capital Gains Tax Applies to Your Home
Partial CGT exposure often begins when a homeowner says, “It's still my home, so everything is exempt.” The ATO explains that the main residence exemption generally applies to a home, but the portion connected with rental or business use may be subject to CGT. The relevant allocation can involve time, space and income-producing use. See the ATO's guidance on CGT and the sale of property.
The Nguyen family's Parramatta terrace illustrates why the analysis needs detail. They live in the main part of the home, but different uses can produce different outcomes.
A home office
If part of the Parramatta terrace is used by a sole trader or professional to produce income, the relevant area and period may need to be considered. A room used occasionally for ordinary household administration isn't the same factual situation as a clearly identifiable area used to earn assessable business income.
The important question is not whether the owner works from home in a broad sense. It's whether a portion of the dwelling was used in a way that connects it to income production and therefore needs to be allocated in the CGT calculation.
A granny flat or rented area
If the Nguyen family leases a separate granny flat to a tenant, the private living area and the income-producing area may need to be considered separately. The taxable portion may depend on the relative area and the period during which the flat was rented.
A change in use can also matter. A property may be entirely private for one period and partly income-producing later. The calculation must reflect that history rather than applying one label to the entire ownership period.
Short-term rental while overseas
Suppose the family leaves Australia temporarily and lists part or all of the property for short-term stays. That use may create a different CGT analysis from just leaving the property vacant. The time spent generating income and the part of the home made available can affect the allocation.
Partial exemption is not a minor technical footnote. It can change the taxable fraction of a gain when a home is mixed with rental, business or short-term accommodation use. The right records include dates, floor plans or area information, rental statements, booking records and evidence of when the property was occupied privately.
The same reasoning applies to a home that becomes a workplace, a dwelling with a separately leased area, or a former home rented after the owner moves out. The assumption that “your home is exempt” can be the point at which a more careful allocation becomes necessary. Everglow's property sale taxation resource provides further educational context.
Residency Status and What It Means for Your Exemption
Living in a property is important, but it may not be enough to preserve the full exemption. The ATO states that foreign residents generally can't claim the main residence CGT exemption when selling Australian property after 30 June 2020, subject to limited circumstances. Its legal guidance also identifies restrictions involving excluded foreign resident status. Review the ATO's foreign resident guidance.
Wei is a new Sydney migrant professional who buys and lives in an Australian home. Later, Wei plans to move overseas and sell the property after becoming a foreign resident. The fact that Wei genuinely lived there as a family home doesn't, by itself, resolve the tax outcome. The timing of the sale, the residency position at disposal and any limited exception must be reviewed together.
| Status | Main residence exemption available | Key condition |
|---|---|---|
| Australian tax resident at disposal | May generally be available, subject to the ordinary eligibility and use rules | The property and its use must satisfy the relevant conditions |
| Foreign resident at disposal | Generally unavailable for sales after 30 June 2020, subject to limited circumstances | Residency status and any applicable life event must be examined |
A former home can sometimes continue to be treated as the owner's main residence for up to 6 years while it produces income. The ATO also states that, when moving between homes, both properties can generally qualify as a main residence for up to 6 months. These concessions don't remove the need to examine residency status and mixed use. Read the ATO's guidance on treating a former home as your main residence.
The sale date has a practical reporting consequence. The capital gain, loss or exemption is generally reported in the income year in which the sale contract is signed, rather than the year settlement occurs. That makes contract timing relevant to a planned overseas move.
A visa change, a move overseas and a sale contract can each alter the analysis. Treat them as separate planning questions.
Wei should review the proposed move, residency position, intended sale timing and any income-producing use before signing. New migrants and returning Australians should be particularly careful because the family-home history may not produce the expected result once foreign residency applies. Everglow's non-resident tax guidance discusses related Australian tax considerations.
How to Calculate the Capital Gain and Reduce Your Taxable Amount
A capital gain generally begins with the sale proceeds and the property's cost base. The cost base is more than the original purchase price. The ATO identifies five broad elements:
- Money paid, or property given, to acquire the asset.
- Incidental costs of acquiring or disposing of the asset.
- Certain ownership costs.
- Capital costs that increase or preserve the property's value, or install or move an asset.
- Capital costs incurred to preserve or defend title or rights.
Tom is a Brisbane tradie who owns a Wahroonga home and is considering a sale after completing renovation work. Before acting, Tom would need to distinguish capital improvements from ordinary household spending and retain the documents that support each cost. An eligible cost may increase the cost base, which can reduce the capital gain, but the tax treatment depends on the nature of the expense and the property's use.
A simplified calculation is:
Capital proceeds minus the cost base equals the capital gain.
The relevant contract date is important, and any taxable amount then needs to be considered alongside the main residence rules, partial exemption and other capital gains or losses. Tom should gather the purchase contract, sale contract, agent and legal invoices, improvement invoices, ownership cost records and documents relating to any business or rental use.
For an eligible asset held for at least 12 months, individuals and trusts may generally apply the 50% CGT discount. The ATO's property guidance gives an example in which a $243,162 capital gain is reduced by 50% to $121,581. The discount doesn't convert a property that is otherwise fully exempt into a taxable one, nor does it remove the need to allocate a gain where only part of the property qualifies. See the ATO's property CGT examples.
Tom's decision is therefore not just whether to sell. He needs to establish whether the home is fully or partly exempt, identify the correct cost base, confirm the holding period and retain records from acquisition through disposal. Everglow's guide to reducing CGT provides further educational discussion, but personal advice should be based on Tom's complete circumstances.
What You Should Do Before Selling Your Home
Before signing a contract, assemble the facts that determine the result. A useful review should cover:
- Residency: Confirm whether you're an Australian resident or foreign resident at the time of disposal, particularly if you're moving overseas or returning to Australia.
- Use: Identify whether any room, granny flat, office or other area was rented, listed for short-term stays or used to produce business income.
- Dates: Record when you lived in the property, when any income-producing use began and when the sale contract will be signed.
- Cost base: Gather acquisition and disposal documents, improvement invoices, relevant ownership costs and records supporting title-related expenditure.
- Structure: Check whether the owner is an individual, trust, partnership or another entity, because ownership can affect the calculation and reporting process.
A home sale may be fully exempt when it was your main residence and the relevant conditions were satisfied. Income-producing use can create a partial exemption, residency status at disposal can restrict the exemption, and the cost base and discount rules can affect any remaining taxable gain. The right approach depends on your specific residency, use, ownership and timing circumstances.
Everglow Prosperity works across tax and accounting, financial planning, property matters and advisory services, including reviewing CGT calculations and the income year in which a property transaction should be reported. You can also use the Everglow Prosperity knowledge hub for related Australian tax and wealth topics.
If you would like clarity on how these principles may apply to your own circumstances, contact Everglow on 1300 913 929 or email contact@everglow.au.
To book directly: Book a meeting with Panbo.
Tags: capital gains on home sale, Australian property tax, main residence exemption, partial CGT exemption, foreign resident CGT, six-year rule, property tax planning
