Your Departure Year Tax Return: The One Australians Keep Getting Wrong

Why the departure year tax return when you leave Australia is nothing like the others

In our experience, few tax returns cause more trouble than one in particular. It is not the one with the rental property, or the one with the crypto, or even the one where someone tried to claim the family dog as a security expense.

It is the return for the year you leave Australia.

On paper it looks like every other return. Same form, same deadline, same login you have forgotten the password to. But underneath, it is a different animal entirely, because partway through the year the rules that apply to you changed. You started the year as an Australian tax resident and, if your move was the real deal, you finished it as a foreign resident. One return. Two sets of rules about what gets taxed. And a long list of ways to get it wrong.

We prepare a lot of these, and we repair our fair share of them too. Here is what actually happens in a departure-year return, why a return prepared on autopilot will cheerfully lead you astray, and where the expensive mistakes hide.

First, the question everything else hangs off

Before a single number goes in the return, one question has to be answered properly: did your Australian tax residency actually cease, and if so, on what date?

Getting on a plane does not decide this. Neither does renting out the house, shipping the furniture or announcing at your farewell that Australia has seen the last of you. Tax residency turns on the whole pattern of your life: where and how you live, your plans, your family and work, the homes available to you and the ties you keep in Australia. No single fact gets to wear the crown.

There can also be a second layer where another country regards you as its resident too. We recently acted successfully for a client in a Tribunal dispute involving the Australia-Singapore tax treaty, and you can read how that win unfolded. That case is a useful reminder that cross-border residency can require both the Australian domestic-law analysis and, where relevant, a separate treaty analysis. They are different questions, and getting the second one right mattered a great deal to that client.

Why does the date matter so much? Because everything in the departure-year return is built on it. The threshold you receive, the income that is taxable here, the capital gains position, all of it flows from that single date. Put the wrong date in and the whole return is wrong, usually confidently. For people with some flexibility, the arrangements and sequencing around departure can affect when residency actually ceases, and that conversation belongs before the tickets are booked. The legal date follows the facts, not the itinerary. Our guide to being an Australian resident for tax purposes explains the framework, but if your facts are anything other than textbook, this is the part to have assessed before you lodge, not after.

The year of two halves

Assume your residency genuinely ceased partway through the year. Your departure-year return now has to deal with two periods governed by different rules.

While you were an Australian resident, Australia generally taxed your worldwide income, subject to any applicable treaty and special rules such as those for temporary residents.

After residency ceased, Australia generally stepped back to Australian-source income and the particular categories of income and gains it continues to tax. Your new overseas salary may be outside the Australian net. Your Australian rental property did not get the same memo.

Payments around departure are another trap. Salary and bonuses are usually brought to account when received, but that does not by itself settle where the income is sourced or whether Australia can tax it after you leave. A bonus paid after departure may still relate to Australian employment, while invoices and business income can follow different timing rules again. The date the money hit the bank is not a universal answer. Neither is the period printed on the payslip. That is why straddling payments deserve an actual analysis rather than a confident guess.

Managed funds and ETFs deserve special attention. Their annual tax statements can contain several different kinds of income, withholding and capital amounts, and a change of residency can alter the treatment of those components. Copying the statement line for line into tax software may faithfully reproduce the statement and still produce the wrong return. The real question is which components Australia taxes, and how, on each side of the residency change.

The incredible shrinking tax-free threshold

A full-year Australian resident gets the full $18,200 tax-free threshold. In a departure year, the threshold shrinks. You receive $13,464 plus a proportion of the remaining $4,736 for the months you were an Australian resident, including the month you left.

Say Sarah’s residency ceases in mid-December 2026. That gives her six resident months, so her threshold is $15,832. Not $18,200.

The arithmetic is the easy part. The hard part is establishing whether Sarah really ceased Australian residency in December in the first place. Software can calculate from the date you give it. It cannot make a bad date legally correct.

Here is the other part that catches people out. You do not use resident tax rates before departure and foreign-resident rates afterwards. If you were an Australian resident for part of the year, the resident rate scale applies to your taxable income for that income year, using the reduced threshold.

For 2026-27, the two scales look like this:

One residency change. One annual rate scale. Plenty of opportunity to get the inputs wrong.

The departure tax hiding in your final resident return

Now for the section that makes people put their coffee down.

When Australian tax residency ends, the tax law can treat certain investments as though they were sold at market value on that day, even though nothing was actually sold. That can crystallise capital gains, and sometimes losses, in the departure year.

Shares, foreign investments and crypto assets are common examples. Australian property is generally treated differently, and special rules can also apply to temporary residents.

For someone with a portfolio that has grown substantially over several years, this can create a very real tax bill without a cent of sale proceeds arriving in the bank. An impressive piece of legislative theatre.

There may be a choice between recognising the departure result now and keeping the affected investments within Australia’s capital gains tax net while you are overseas. Neither answer is automatically better.

Cost bases matter. Expected future growth matters. How long you expect to be away matters. Whether you might return matters. And the tax rules of the country you are moving to can matter just as much as Australia’s.

This is therefore a modelling decision, not a box-ticking exercise. We compare the alternatives before the departure-year return is lodged, because a return prepared on autopilot can lock in a position with consequences that only become obvious years later.

A special word for anyone holding employee shares, options or rights. Employee equity has its own tax regime, and leaving Australia does not usually create an employee share scheme taxing point simply because you left. What departure can change is how a later amount is sourced and how much Australia is entitled to tax. For executives whose equity was earned across more than one country, that can become considerably more interesting than the share-plan brochure suggested. If a meaningful part of your wealth sits in employee equity, deal with it alongside the residency and capital gains analysis before departure.

Sold the house? Check which side of the line the contract landed

If you sell your former home after becoming a foreign resident, the main residence exemption can disappear entirely, even if you lived in the property as your family home for many years.

For an ordinary property sale under contract, the crucial capital gains tax date is generally the contract date, not settlement. A narrow life-events exception exists, but it applies in much more limited circumstances than most people expect.

That means signing the contract a fortnight before residency ceases rather than a fortnight afterwards can produce a radically different result on the same house. If the sale has already happened, the return needs to deal with it correctly. If it has not, the sensible time to consider the sequencing is before anybody reaches for a pen.

While we are on property: since 1 January 2025, the foreign-resident capital gains withholding regime generally requires 15 per cent to be withheld from Australian real property transactions unless the appropriate clearance or relief is in place. There is no minimum property-value threshold anymore. Australian-resident vendors therefore generally need a clearance certificate to prevent withholding at settlement.

If an amount is withheld, it is claimed as a credit through the relevant Australian tax return. It is withholding, not an extra 15 per cent tax on top of the eventual capital gains tax bill, but nobody enjoys discovering it for the first time at settlement.

The income items people put in the wrong box

A few classics we see every single year.

Rental income. Your Australian rent stays taxable here whether you are a resident or not, and it must be reported as gross rent with deductions claimed separately. Netting it off looks harmless and is wrong, and it is one of the first things a review picks up.

Franked dividends. Fully franked dividends paid to you after your residency ceased are generally not subject to further Australian tax, because the company has already paid tax on the profits. The credits are not refundable to you, but the fully franked amount ordinarily has no more Australian tax to pay, and it generally does not belong in the return for the foreign-resident period.

Interest and unfranked dividends. Once you are a foreign resident, Australian interest is generally subject to a final 10 per cent withholding tax. Unfranked Australian dividends are generally subject to 30 per cent withholding under domestic law, although a tax treaty often reduces that rate, commonly to 15 per cent for portfolio dividends. Where the correct final withholding has been taken, those amounts ordinarily stay out of the Australian tax return. Where your bank still thinks you live in Wagga because nobody told it otherwise, the withholding position needs fixing rather than improvising.

Medicare levy. Your foreign-resident period can generally qualify for an exemption from the Medicare levy, although the rules for dependants can affect the entitlement. A part-year return therefore needs the foreign-resident period dealt with properly. It does not apply itself automatically.

PAYG instalments. The Tax Office’s systems can keep issuing instalment notices after you leave because they are looking backwards at earlier income. Instalments already paid are reconciled through the tax return, but future instalment notices may need separate attention. Paying them blindly can tie up cash unnecessarily. Ignoring them can create an entirely new pastime involving paying interest and dealing with overdue notices.

Your student loan did not stay at the airport

If you have a HELP, VET Student Loan or Australian Apprenticeship Support Loan debt, it boarded the plane with you, and it brought paperwork.

If you expect to remain overseas for at least 183 days, you will generally need to notify the Tax Office within seven days of leaving. Overseas debtors can also have annual worldwide-income reporting obligations, generally due by 31 October unless a later registered tax-agent lodgement date applies.

For 2026-27, compulsory overseas repayments can begin once the relevant repayment income exceeds $69,528, under the marginal repayment system. The remaining debt can also continue to be indexed while you are away.

The important distinction is that Australian taxable income and worldwide income for study-loan purposes are not the same concept. Depending on how you lodge, the reporting can be dealt with as part of the same annual process. Do not assume, however, that becoming a foreign resident makes the debt or its reporting obligations disappear. Admittedly, that would likely be a popular tax policy.

Why the software gets it wrong with such confidence

Tax software is very good at arithmetic. Judgement is a different department.

It can process a residency date. It cannot tell whether the date you gave it is legally right. It can accept a capital gain. It cannot determine whether the calculation is correct, and nor can it decide which departure capital gains strategy makes commercial sense for you. And it cannot look at an overseas move, an Australian property contract, a bonus and a share portfolio and ask whether the pieces fit together.

That is why a departure-year return can contain every dollar you earned and still be wrong. The arithmetic may be flawless. The assumptions underneath it were the problem.

One more complication has arrived for people planning beyond the next financial year. Australia’s capital gains tax rules change from 1 July 2027 under the Treasury Laws Amendment (Tax Reform No. 1) Act 2026. Those reforms can materially change the economics of a departure capital gains decision, particularly where an investment may not be sold until after that date, and some of the rules dealing with changes of residency are still being refined. Translation: a strategy that looked sensible under the old capital gains rules may not produce the same result under the new ones. This belongs in the modelling, not in a home-made spreadsheet assembled the night before departure.

Lodged years ago and none of this rings a bell?

If you are reading this several years after leaving Australia and your departure-year return never considered departure capital gains tax, do not assume either that everything is fine or that nothing can now be done.

Depending on the circumstances, there can be avenues to revisit an old assessment and a missed departure capital gains tax choice, even where the ordinary time limits have passed. We have successfully dealt with these cases for clients.

That does not make the process automatic. Older cases involve evidence, statutory discretions and procedural judgement, and the facts matter enormously. Repair work is possible in the right case. It is also considerably easier to avoid needing it in the first place.

If that last paragraph described you, book a consultation and we will tell you honestly whether your position is worth pursuing before you commit to the repair work.

The short version

Your departure-year return is the hinge between your Australian tax life and your expat one. It needs the right residency date, a correctly adjusted threshold, income assessed correctly on each side of the residency line, the departure capital gains position dealt with deliberately, any property sale reported on the correct basis, and your study loan obligations set up for the years ahead. Get it right and everything afterwards gets simpler. Get it wrong and you will be paying someone like us to unpick it, which is more expensive and considerably less fun for everyone except our practice manager. This article covers the return itself; for the broader set of decisions to make before you fly, see our full leaving Australia tax planning guide.

If you are leaving soon, or you left recently and the return is looming, book a consultation with our specialist expat tax team. We will work out your residency position, model the choices that need making, and prepare a departure-year return that is actually right the first time. We work remotely with Australians in over one hundred countries, and we quote upfront before any work begins.

Frequently asked questions

When do I lodge my departure-year return?

Generally by 31 October following the end of the income year if you lodge yourself, or later under a registered tax agent’s lodgement program if you are on their books in time. In limited cases the Tax Office allows early lodgement for people leaving permanently before the year ends, but eligibility is restricted and worth confirming before relying on it.

Do I get the full $18,200 tax-free threshold in the year I leave?

Not if your residency ceased partway through the year. You receive $13,464 plus a proportion of the remaining $4,736 based on the months you were a resident, counting the month of departure. Six months of residency gives you $15,832. The resident rate scale then applies to your taxable income for the year, using that reduced threshold.

Will I really pay tax on shares I never sold?

Possibly. Ceasing Australian residency can cause certain investments to be treated as though they were sold at market value, creating a capital gain or loss even though no actual sale took place. There can also be an alternative treatment that keeps affected investments within the Australian capital gains tax system while you are overseas. Which result is preferable depends on the numbers and your future plans, so it should be modelled before the departure-year return is lodged.

My employer paid my final bonus after I left Australia. Is it taxable?

Quite possibly. Employment income is generally derived when received, but that does not settle where the income is sourced or which country has the right to tax it. A bonus paid after departure can still relate to Australian employment, and a tax treaty may change the final result. The bank-payment date alone does not answer the question.

I sold my house just before moving. Is the gain tax-free?

It depends on your residency status on the contract date. If you were still an Australian resident when the contract was entered into, the main residence exemption can apply in the ordinary way. If you were a foreign resident at that time, the exemption is generally denied entirely for sales after 30 June 2020, unless a narrow life-events exception applies. The sequencing matters enormously, which is why we advise on it before contracts are signed wherever possible.

Do I still need to do anything about my HELP debt?

Yes. If you expect to remain overseas for at least 183 days, you will generally need to notify the Tax Office within seven days of leaving. Foreign-resident debtors can also have annual worldwide-income reporting obligations. For 2026-27, the minimum repayment income is $69,528. Becoming a foreign resident does not make the debt disappear.

I lodged my departure-year return years ago and none of this was considered. Is it too late to fix?

Not necessarily. Depending on the facts, there can be avenues to revisit both an old assessment and a missed departure capital gains tax choice after the ordinary deadlines. Those avenues are discretionary and fact-sensitive, so the sensible first step is to determine exactly what the original return did and what consequences followed from it.

General information only. This article is current as at 11 September 2026 and does not take your personal circumstances into account. It is not tax, financial or legal advice. Tax residency, departure timing and the treatment of income, investments, property and superannuation depend on your circumstances and can change over time. Speak with our specialist expatriate tax team before acting.

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