When Australian Companies Create a Permanent Establishment Overseas

Introduction

Expanding your Australian company offshore can feel like a simple step, yet a foreign country may gain the right to tax your profits without you ever opening a formal office or branch. A permanent establishment can arise without you intending it — through a home office, a local representative, or a local employee with contract authority.

This article explains what triggers a permanent establishment overseas, which activities are excluded, & what to assess before your business sets up any foreign presence.

Interactive Tool: Check If Your Overseas Activities Trigger Foreign Tax

What a Permanent Establishment Is & Why It Matters for Your Australian Business

Defining the Threshold for Foreign Taxation

An Australian company can face foreign taxation once its overseas activities amount to a permanent establishment (PE) — a fixed place of business through which the enterprise carries on all or part of its business. This can include a place of management, branch, office, factory or workshop, rather than only a separately registered office address.

Section 6(1) of the Income Tax Assessment Act 1936 (Cth) (‘ITAA 1936’) defines a PE as a place at or through which a person carries on business. Australia’s double tax agreements use a broader treaty concept built around a fixed place of business, with the foreign country’s taxing rights limited to profits attributable to the PE. For Australian business owners, the threshold matters because a business can create a taxable presence without a separate foreign entity.

The Risk of Unintended Tax Obligations

The structure on paper does not determine the result by itself. A PE can arise without the company intending it — through an ongoing overseas business presence, a local representative, or activities carried on without a formal branch or office. The actual substance of the Australian company’s overseas operations remains central to the analysis.

Once a PE exists, the foreign country may tax the profits attributable to that overseas presence, while Australian tax obligations can continue to apply to the Australian company. The consequences can include:

• an unexpected foreign tax liability;
• additional reporting requirements; or
• retroactive assessments if the PE was not identified earlier.

A registered office address alone does not resolve the position, particularly where the business operates without a physical branch but carries on substantive activity overseas.

ATO Guidance on Double Tax Agreements

The Australian Taxation Office (‘ATO’) updated its PE guidance on 24 June 2026, including its explanation of how Australia’s double tax agreements apply when an Australian enterprise operates through an overseas PE. The key point is that the foreign country’s taxing right is limited to the profits attributable to that PE, rather than the Australian company’s entire worldwide income.

Those profits are calculated using arm’s length principles, which require the overseas operation to be assessed by reference to:

• the functions it performs;
• the assets it uses; and
• the risks it assumes.

The ATO refers to Taxation Ruling TR 2001/11 Income tax: international transfer pricing (‘TR 2001/11’) for further information about attribution rules. For Australian business owners, weak profit allocation records can make it harder to support which income belongs to the overseas PE rather than the Australian business.

The Two Main Ways an Australian Company Can Create a Permanent Establishment

Operating Through a Fixed Place of Business

An Australian company can create a PE by carrying on business through a stable physical location in the foreign country. This can include:

• an office, branch, warehouse, workshop, or retail premises; or
• another facility used regularly for business activities.

A place usually needs a degree of permanence. The required duration depends on the country and any applicable tax treaty.

The risk is that an Australian company may create foreign tax exposure before recognising that its physical presence has crossed the relevant threshold.

Engaging a Dependent Agent Overseas

Foreign premises are not required where a person in the foreign country acts as a dependent agent for an Australian company. A dependent agent PE can arise where the person:

• acts for the company;
• habitually exercises authority to conclude contracts in the company’s name; or
• concludes contracts binding on the company,

provided the activities are not limited to preparatory or auxiliary work.

An agent is treated differently where the agent is legally and economically independent, and then acts in the ordinary course of its own business. The distinction turns on the representative’s:

• actual authority;
• conduct;
• economic independence; and
• relationship with the Australian company,

rather than the label used in service agreements or employment contracts. This is where an overseas sales representative or local manager can create a PE without a physical office, leaving Australian business owners with foreign tax exposure they did not plan for.

The Impact of the OECD 2025 Home Office Update

The OECD Model Tax Convention on Income and on Capital (‘OECD’) update released on 19 November 2025 gives businesses a clearer framework for assessing remote employees’ home offices. The OECD’s update to the Article 5 Commentary provides guidance on home office PE. An Australian company with overseas remote employees needs to consider whether their home offices constitute a fixed place of business through which the Australian company’s business is carried on.

The first factor is whether the employee works from the home office for at least 50 per cent of total working time over a rolling 12-month period. The second is whether there is a genuine commercial reason for the employee’s presence in that country, such as:

• regular local client interaction;
• supplier oversight;
• meaningful time-zone coverage; or
• collaboration with local institutions.

Employee preference, talent retention, or office cost savings do not qualify as commercial reasons on their own. As a result, remote work arrangements can require closer review where the threshold is approached or exceeded.

The Activities That Trigger a Permanent Establishment & The Ones That Do Not

Common Triggers for Overseas Tax Exposure

The key question for an Australian company is not where a document is signed, but where substantive business activity is carried on.

High-risk activities include:

• Dedicated premises: maintaining an office, branch, warehouse or other location used as a regular business base.
• Contract authority: employing staff or representatives who habitually conclude contracts, or play the principal role leading to contracts routinely accepted by the company.
• Long-term projects: carrying out construction or installation work beyond the time threshold in the relevant double tax agreement.

Practically, this matters for Australian business owners when an Australian business expands overseas through staff, premises or projects without assessing the substance of those activities. The result can be a taxable presence without a physical branch being formally registered.

The Preparatory & Auxiliary Activities Exception

Not every overseas activity creates a PE. Activities that are purely preparatory or auxiliary are generally excluded, including:

• market research;
• information gathering;
• storage;
• display;
• delivery; or
• liaison-only work.

However, where the activity is the company’s core business function, the preparatory exception does not apply.

The distinction depends on what the location actually does for the Australian company. A small liaison office that only gathers information may fall within the exclusion, while a facility that performs the business’s central revenue-generating function may not.

Practically, this matters for Australian business owners when an activity is described as “marketing“, “storage” or “research” but also supports regular order fulfilment, contract activity or another substantive function. A label that does not match the operation can leave the intended exception unavailable.

Understanding the Multilateral Instrument Anti-Fragmentation Rule

Splitting overseas activities between locations does not necessarily keep each activity outside the PE threshold. The Multilateral Instrument anti-fragmentation rule can examine activities together where separate locations perform parts of a cohesive business operation.

This can matter where an Australian company divides functions such as:

• Storage or delivery at one location;
• Information gathering or liaison at another location; or
• Sales, order fulfilment or contract activity elsewhere.

Practically, this matters for Australian business owners when each individual function appears preparatory or auxiliary, but the combined arrangement performs a connected business purpose. Fragmentation can therefore fail to prevent PE exposure, leaving the business with foreign tax and compliance consequences it had not planned for.

What Happens Once a Permanent Establishment Exists for Your Australian Business

Foreign Taxation Rights & Profit Attribution

An Australian company with an overseas PE can become taxable in the foreign country on the profits attributable to that overseas operation. The existence of a PE does not mean the foreign country taxes the company’s worldwide profits; the taxing right is limited to the profit connected with the PE.

Those profits are calculated using arm’s length principles, supported by a functional analysis of the activities performed, assets used and risks assumed at the overseas location. The allocation must be supported by separate accounting records and evidence, rather than determined by the registered office address or the company’s preferred allocation. If the records do not reflect the overseas business activity, the Australian business may face disputed profit allocations, additional foreign tax and double-tax exposure.

Registration & Ongoing Compliance Obligations

A PE creates more than a tax assessment issue: the Australian company can also face local registration and filing obligations in the foreign country. These can include:

• obtaining a local tax identification number;
• lodging annual income tax returns;
• reporting the PE’s income and expenses;
• managing withholding obligations for employees or contractors; and
• meeting indirect tax requirements where the relevant threshold is exceeded.

The compliance burden also extends to transfer pricing documentation and ongoing records supporting dealings between the PE and the Australian head office. An undisclosed PE can lead to prior-year assessments, penalties and interest, while incomplete records make it harder to establish which profits belong to the foreign operation.

What to Assess Before Your Australian Business Sets Up Overseas

Evaluating Planned Activities Against Tax Treaties

An Australian company should assess its planned overseas activities before committing to premises, personnel, or contract arrangements. The relevant double tax agreement determines whether the foreign country can tax profits attributable to a PE. In practice, the actual substance of the activity matters more than a registered office address or contractual label.

The assessment should focus on whether the proposed arrangement involves:

• A fixed place of business through which the Australian company carries on business; or
• A dependent agent who habitually concludes contracts, or plays the principal role leading to contracts routinely concluded without material modification.

If a PE exists, the foreign country may tax the profits attributed to it under arm’s length principles. Australia may still tax the company’s income, with relief potentially available through a Foreign Income Tax Offset where the relevant treaty conditions are met. This is where an overseas expansion can create an additional tax and compliance burden without a separate foreign entity or traditional office.

Choosing Between a Branch & a Separate Foreign Subsidiary

For Australian businesses, the choice between a branch and a separate foreign subsidiary is central to international company and offshore structure design and changes the starting point for PE analysis.

A branch is an extension of the Australian company rather than a separate entity, so it will generally create a PE in that country.

A separate foreign subsidiary is a distinct legal entity and does not, by itself, create a PE for the Australian parent. The risk changes if the subsidiary’s premises or personnel act as a dependent agent for the Australian company by habitually exercising authority to conclude contracts on its behalf.

The structural trade-off is clear: a branch will generally create a PE, while a subsidiary may provide a separate legal structure but does not remove exposure where the actual relationship operates through dependent-agent activities.

Conclusion

For Australian business owners, an Australian company expanding offshore must assess whether its operations create a PE through a fixed place, a dependent agent, or a remote employee’s home office. The consequences can include foreign taxation of attributable profits, arm’s-length profit allocation and local registration and filing obligations. A branch will generally create a PE, while a subsidiary does not automatically create one for the Australian parent.

Australian business owners considering an overseas presence should discuss the proposed structure with WealthSafe’s international company and offshore structure design specialists before operations begin. WealthSafe helps shape a legal, defensible structure that matches the business’s actual activities, control & reporting obligations.

Frequently Asked Questions