• Written by: James Carey, CA CTA
• 12/06/2026

Australian Tax Compliance for Foreign Companies 2026-27

Registering an Australian company takes two days. The compliance cycle it triggers runs forever. From the moment a foreign-owned entity starts trading here, it picks up somewhere between four and ten separate lodgment obligations with the Australian Taxation Office, each with its own form, its own deadline and its own penalty clock. Miss one and the ATO does not send a polite reminder first; for a large entity the failure to lodge penalty starts at AU$1,650 per 28 days, and for a significant global entity at AU$165,000.

This guide maps the full annual cycle for foreign companies operating in Australia, whether through a local subsidiary or directly: what you must register for on day one, every return and statement you lodge through the year, the exact due dates using the financial year ending 30 June 2026 as the worked example, and what it costs to be late. If you are still working out which taxes apply to your structure, start with our overview of tax obligations for foreign companies operating in Australia; for the current rates themselves, see the Australian tax rates guide. This page is about the obligations, the deadlines and the consequences.

Day 1: Registrations Before You Trade

The ATO will not let you lodge anything until you exist in its systems, and several registrations are legally required before the first transaction, not after it. A foreign-owned company entering Australia typically needs:

• Tax file number (TFN). The company’s tax identity. Without it you cannot lodge a return, and the ATO verifies overseas directors and shareholders manually, so foreign-owned applications take weeks rather than days. Apply immediately after incorporation.
• Australian business number (ABN). Required for any entity carrying on an enterprise in Australia. Counterparties must withhold 47% from payments to a supplier that should have quoted an ABN and did not.
• GST registration. Mandatory once GST turnover reaches AU$75,000, and non-resident businesses face specific timing rules. The registration mechanics, the 21-day rule and turnover calculation for foreign entities are covered in our GST compliance guide for foreign companies.
• PAYG withholding registration. Required before the first payment to an employee or director, not by the end of the month. If you hire even one Australian employee, this comes first.
• FBT registration. Needed once the company provides fringe benefits such as cars, housing or expense payments, which foreign companies relocating executives almost always do.

Run the registrations in parallel and budget four to six weeks end to end for a foreign-owned applicant. Every deadline in the rest of this guide assumes these are in place.

The Lodgment Stack: What a Foreign Company Actually Lodges

Australian compliance is not one tax return. It is a stack of recurring lodgments that interlock, several of them flowing through the same form. Here is each layer.

Company Tax Return

Every Australian-resident subsidiary lodges a company tax return annually, and so does a non-resident company deriving Australian-sourced income that is not fully taxed by final withholding (more on that below). The standard income year runs 1 July to 30 June; foreign groups can apply for a substituted accounting period to match the parent’s year end, which shifts every date in this guide.

Due dates depend on how you lodge and how big you are. For the year ending 30 June 2026 (source: ATO registered agent lodgment program, companies and super funds):

• Self-preparers: 28 February 2027, or 31 October 2026 if any prior year return is outstanding.
• Most tax agent clients: 15 May 2027.
• Large and medium taxpayers (annual total income above AU$10 million) that were taxable last year: lodgment 31 January 2027, but payment falls due 1 December 2026, before the return is even lodged.
• Entities with total income above AU$2 million in the prior year: 31 March 2027.

That 1 December payment date surprises foreign CFOs every year: Australia collects from larger companies on a full self-assessment basis, so the cheque is due months before the ATO sees the return.

On rate, a foreign-owned resident subsidiary is taxed exactly like a locally owned one: 25% if it is a base rate entity, 30% otherwise. Base rate entity status requires aggregated turnover under AU$50 million and no more than 80% of assessable income from passive sources (source: ATO, changes to company tax rates). Foreign ownership does not disqualify you, but aggregated turnover counts connected entities worldwide, so a subsidiary of a foreign group with AU$60 million of global revenue pays 30% even if its own Australian turnover is tiny.

Business Activity Statements (BAS)

The BAS is the workhorse of Australian compliance: one form that reports GST, PAYG withholding and PAYG instalments together. Your cycle depends on GST turnover (source: ATO, due dates for lodging and paying your BAS):

• Quarterly if GST turnover is under AU$20 million: due 28 October, 28 February, 28 April and 28 July. Lodging online generally adds two extra weeks, except for the December quarter, which already has a built-in extension.
• Monthly if GST turnover is AU$20 million or more: due the 21st of the following month, lodged electronically. No choice in the matter.
• Annually only for voluntarily registered businesses under the AU$75,000 threshold.

PAYG Instalments

Australia prepays company tax. Once your latest lodged return shows instalment income of AU$2 million or more, or estimated tax of just AU$500 or more, the ATO automatically enters the company into the PAYG instalment system (source: ATO, starting PAYG instalments). You then pay quarterly instalments through the BAS, with companies over AU$20 million of instalment income moved to monthly. The instalments are credited against the final assessment, so this is timing, not extra tax, but it means a profitable first year produces a double cash hit in year two: last year’s tax plus this year’s instalments.

PAYG Withholding and Single Touch Payroll

Employers remit the tax withheld from wages on a cycle set by their annual withholding volume (source: ATO, paying and reporting withheld amounts): quarterly if you withhold AU$25,000 or less per year, monthly between AU$25,000 and AU$1 million, and within 6 to 8 days of each pay event above AU$1 million. Every pay run must also be reported through Single Touch Payroll on or before payday, with an annual finalisation declaration due 14 July. Alongside withholding sits superannuation: 12% of ordinary time earnings, payable quarterly within 28 days of quarter end, and late super attracts the non-deductible superannuation guarantee charge rather than a normal penalty.

Fringe Benefits Tax

FBT runs on its own year, 1 April to 31 March, which catches foreign groups off guard because nothing in their home jurisdiction looks like it. For the FBT year ended 31 March 2026, a self-lodged return was due 21 May 2026; tax agents lodging electronically had until 25 June 2026, provided the company was on the agent’s FBT client list by 21 May (source: ATO, lodging your FBT return and paying). Relocation packages, company cars and housing allowances for expatriate executives are the classic foreign-company FBT triggers.

International Dealings Schedule (IDS)

This is the lodgment most first-time foreign subsidiaries have never heard of. If aggregate dealings with international related parties exceed AU$2 million in the year, including loan balances outstanding, the company must lodge an IDS with its tax return (source: ATO, international dealings schedule). A parent loan, management fees, royalties and intercompany purchases count toward the AU$2 million, so virtually every operating subsidiary of a foreign group trips the threshold. The IDS asks pointed questions about transfer pricing methods and documentation, and it is the ATO’s primary risk-screening tool for international structures.

Transfer Pricing Documentation and Country-by-Country Reporting

Transfer pricing documentation is not lodged, but it must exist by the time the tax return is lodged for the company to have a reasonably arguable position if pricing is challenged; prepare it after the deadline and the penalty protection is gone. Groups with annual global income of AU$1 billion or more are significant global entities, and those that are country-by-country reporting entities must lodge three statements (the CbC report, master file and local file) within 12 months of year end: 30 June 2027 for the year ending 30 June 2026 (sources: ATO, significant global entities; ATO, country-by-country reporting). The methods, documentation tiers and ATO focus areas are covered in depth in our transfer pricing compliance guide.

The Annual Compliance Calendar

Here is the full cycle for a foreign-owned company with a 30 June 2026 year end, assuming quarterly BAS and a tax agent. Dates falling on a weekend or public holiday roll to the next business day.

The pattern worth noticing: a foreign-owned company on a quarterly cycle touches the ATO at least 13 times a year before anything goes wrong. Monthly BAS lodgers touch it 12 times more.

What Late Lodgment Costs

The failure to lodge (FTL) penalty accrues at one penalty unit, currently AU$330, for each 28 days (or part) a document is overdue, capped at five units. The base amount is then multiplied by entity size, and the multiplier is where foreign groups get hurt (sources: ATO, failure to lodge on time penalty; ATO, penalty units):

The SGE row deserves a second look. The multiplier applies per document, and it attaches to the Australian subsidiary because of the parent group’s size, regardless of how small the local operation is. A AU$1 billion group’s Australian entity that lodges its BAS, IDS and tax return each four months late is staring at penalties in the millions (source: ATO, significant global entities penalties). SGEs also cop doubled penalties for false or misleading statements and for positions that are not reasonably arguable.

Late payment is charged separately through the general interest charge, which compounds daily at a rate reset quarterly (above 10% in recent quarters) and, from 1 July 2025, is no longer tax deductible. An unpaid liability now costs full freight.

Subsidiary vs Branch: Same Taxes, Different Paperwork

Everything above applies to both an Australian subsidiary and a registered foreign branch, but the compliance cycles are not identical. A branch lodges a company tax return for the foreign company itself, keeps the parent’s accounting period in play, files ASIC Form 405 financial statements for the whole foreign entity, and cannot access the 25% base rate in respect of most structures the way a resident subsidiary can. The trade-offs run deeper than this paragraph; our companion guide to branch tax compliance in Australia walks through the branch-specific cycle in full.

No Permanent Establishment? You May Still Have to Lodge

A common assumption is that no Australian office means no Australian filings. Not quite. A non-resident company must lodge an Australian tax return for any year in which it derives Australian-sourced income that is not fully taxed by final withholding. Dividends, interest and royalties subject to withholding at source are generally the end of the matter, but Australian-sourced consulting fees, sales income attributable to local activity, or capital gains on Australian property all create a lodgment obligation even without a permanent establishment, subject to any treaty relief. The ATO has data-matching agreements with more than 40 jurisdictions; “they will not notice” is not a strategy.

Frequently Asked Questions

When is the company tax return due for a foreign-owned subsidiary in Australia?

For the year ending 30 June 2026: 28 February 2027 if self-prepared, or generally 15 May 2027 through a registered tax agent. Large and medium taxpayers that were taxable last year must pay by 1 December 2026 and lodge by 31 January 2027, and entities with prior-year total income above AU$2 million lodge by 31 March 2027.

Does a foreign company with no Australian office still have ATO obligations?

Yes, if it earns Australian-sourced income that is not fully taxed by final withholding. Consulting fees, locally attributable sales income and gains on Australian property all require a return, even with no permanent establishment, subject to treaty relief. Income limited to dividends, interest and royalties that suffered final withholding generally does not.

What triggers the International Dealings Schedule?

Aggregate dealings with international related parties above AU$2 million in the income year, counting loan balances outstanding as well as transactions. A parent loan plus management fees usually crosses the line on its own, so most foreign-owned subsidiaries must lodge the IDS with every tax return.

Does a foreign-owned company lodge BAS monthly or quarterly?

Quarterly if GST turnover is under AU$20 million, due 28 October, 28 February, 28 April and 28 July, with about two extra weeks for most online lodgers. At AU$20 million or more, monthly lodgment is compulsory, due the 21st of the following month.

What is the penalty for lodging late in Australia?

One penalty unit of AU$330 per 28 days, capped at five units, multiplied by 2 for medium entities, 5 for large entities and 500 for significant global entities. The maximums per document are AU$1,650, AU$3,300, AU$8,250 and AU$825,000 respectively, and the SGE multiplier applies to the local subsidiary of any group with AU$1 billion or more of global income.

Can a foreign-owned subsidiary use the 25% company tax rate?

Yes. Foreign ownership is no barrier to base rate entity status, but the tests are aggregated turnover under AU$50 million including the worldwide group, and no more than 80% of assessable income from passive sources. Subsidiaries of larger foreign groups therefore pay 30% even when the Australian operation is small.