Selling into Australia from a UK company: ABN, GST and the treaty (2026)

A UK limited company can register for an Australian ABN and GST in its own name. No Australian Pty Ltd, no resident director, no Australian address. The entitlement rules were built for enterprises carried on entirely offshore, and a company registered at Companies House qualifies on the same footing as one registered in Melbourne.

You also start from a better position than many sellers realise. Australia and the United Kingdom have a comprehensive double tax agreement. It does not exempt you from Australian tax, but it changes the shape of the question — from an open-ended argument about where your profits are sourced, into a defined test about whether you have a permanent establishment in Australia. For the ordinary e-commerce pattern, most UK sellers land outside it.

Which leaves a useful conclusion for anyone planning a UK-to-Australia launch: the structure is rarely the hard part. The paperwork is.

(General information only, current at August 2026. Confirm your own position before acting.)

Start with GST — it is the part with a number attached

UK finance teams arrive thinking about corporation tax and leave money at the border. Reverse the order: Australian GST applies to your Australian sales regardless of any treaty, and it either costs you 10% or refunds it.

Registration may become compulsory once your GST turnover from Australian-connected sales passes A$75,000 across any rolling 12 months. Two points:

• It is Australian-connected turnover, not group revenue. A UK brand turning over £8m with A$50,000 of Australian sales may sit below the line. A small UK company that ships one pallet into an Australian warehouse can cross it in a season.
• The test is prospective as well as historic. It asks about the 12 months behind you and the 12 ahead. A launch that works creates the obligation before the accounts show it.

What “connected with Australia” means for a UK exporter

For UK sellers, it resolves in one of three ways.

Stock already in Australia is the decisive one. The moment your inventory is sitting in an Australian fulfilment centre or 3PL when it sells, that sale is a domestic Australian supply — no longer an export from Felixstowe, but a sale of Australian-located goods made by a UK company. This category crosses the threshold fastest, and it is where registration pays for itself.

Low value goods sent direct — consumer sales valued at A$1,000 or less — carry GST, with responsibility falling on the supplier, the marketplace or the redeliverer depending on how the sale is structured. Services and digital products to Australian consumers can carry GST too, and sales to GST-registered Australian businesses are treated differently, which is why collecting a customer’s ABN matters on the B2B side.

If you run a marketplace channel alongside your own Shopify store, map them separately: the platform may be liable for GST on some marketplace sales instead of you, but it will not cover your direct site or the GST you pay importing stock — non-resident GST registration has both sides of that line.

Four things GST does not share with VAT

The mental model transfers; the details do not.

1. The rate is 10%. Pricing built on a 20% VAT-inclusive habit will read wrong in an Australian storefront.

2. Your UK registration is irrelevant here. No read-across from a UK VAT number, no threshold carried over. Australia measures its own, on Australian-connected turnover only.

3. Recovering the GST at the border is not automatic — it depends which registration you hold. Australia offers non-residents two, and neither is an upgrade of the other. Simplified registration issues an ARN, skips identity verification and is quick, but cannot claim credits at all. Standard registration runs off an ABN, needs the identity evidence described below, and is the only one that lets GST come back. When goods over A$1,000 clear the border, 10% is payable there and then — on A$250,000 of stock a year, roughly A$25,000. That comes back through your BAS only on standard registration, and only where your company is the importer of record on the customs entry. That second condition is the one UK sellers most often miss: if your forwarder or 3PL is named on the entry, the credit is theirs.

4. The return is a BAS, usually quarterly. Different form, different cycle, same discipline.

Income tax, and what the treaty actually does

Left to domestic law alone, a foreign resident is assessed on ordinary income sourced in Australia — and source is a common-law question of fact, weighed rather than measured, with no tiebreaker.

A comprehensive double tax agreement changes that. Given force in Australia by the International Tax Agreements Act 1953, a treaty prevails over the domestic source rules, and its business profits article generally reserves the taxing of an enterprise’s business profits to its home country unless it carries on business here through a permanent establishment — and even then, only over the profits attributable to that establishment. Note what that is and is not: not an exemption, and not automatic. It is a narrower question with a more predictable answer — a genuinely better place to stand.

How much better is easiest to see by contrast. There is no comprehensive Australia–Hong Kong treaty, so a seller incorporated there — identical stock, identical listings — has no business-profits shield and must argue source of profits on the facts — a materially less certain position. If your group holds a Hong Kong or other non-treaty entity anywhere in the chain, do not assume it shares the UK parent’s answer.

One caution about reading treaties in 2026. Since 2017 the Multilateral Instrument has modified many bilateral agreements where both countries made compatible choices, and Australia’s choices narrow some of the specific-activity exemptions below. So the operative wording for any treaty pair is the synthesised text the ATO publishes, not the original convention alone — confirm it before relying on a provision.

Warehoused stock, and the argument that actually holds

So does putting stock into an Australian fulfilment centre create a permanent establishment? Generally no — and the reason matters more than the answer.

Most sellers are given the storage-and-delivery exemption: treaties commonly exclude facilities used solely for storing, displaying or delivering the enterprise’s goods. That is a real argument, but only the second-best one — it is exactly the shield the treaty changes above can narrow, and for a pure reseller, warehousing and shipping your own trading stock looks far more like the core of the business than anything preparatory or auxiliary.

The argument that survives is structural: the fulfilment centre was never yours to use. A fixed place of business has to be at the enterprise’s disposal — an effective power to use that location for its business. You cannot walk into the building, direct its staff, or choose which shelf your pallets occupy. What you hold is a service contract, not a right over premises. Treaty modification does not touch that, which is why it should lead. The full three-tier analysis, plus the marketplace-as-agent question, is in does FBA stock create a permanent establishment in Australia.

What changes the answer is people and premises, not pallets: exclusively leased warehouse space, Australian staff or sales contractors, anyone here with authority to conclude contracts, or a UK director relocating — the last raising where central management and control sits. Otherwise the standard position is no permanent establishment — and it should be written down before anyone asks, alongside the return-not-necessary advice that closes a year cleanly: do non-resident sellers lodge an Australian income tax return.

A UK Ltd is the easy part

A UK limited company is a conventional corporate counterparty for all of this. It is a company for tax purposes at home, it has a registered number and a public register entry, its officers are on the record, and it presents to the Australian system as exactly what it says it is. There is no classification question of the kind some other jurisdictions’ vehicles raise — a US seller trading through an LLC has an entity-classification and fiscal-transparency question to work through before the treaty analysis is even framed, whereas a UK Ltd starts where a Pty Ltd starts. If your group holds LLCs or partnerships alongside the UK company, treat those as separate analyses.

Nor is there a legal-form obstacle to registration: a Shenzhen limited company, a Delaware LLC and a UK Ltd are all registrable as they are. Which of the three market-entry routes you take is a commercial decision, and for e-commerce it is nearly always the first — existing company plus an ABN.

So the friction is not structural. It is documentary.

Certification, and the 43-day clock

With no Australian TFN behind it, your application cannot be identity-checked electronically, so it joins a manual proof-of-identity queue. From the day it is lodged you have 43 days for your certified documents to be received and processed. Miss that and the application is refused — no useful appeal, only a fresh application.

The rules that decide the outcome:

• Certified copies of original physical documents only. Certification must come from an approved certifier — outside Australia, typically a notary public, or an Australian embassy or consular official. Certified copies of digital identity documents are expressly not accepted, worth pausing on in a market where so much arrives as a PDF. Solicitors certify documents for plenty of UK purposes; for this one, the safe route is a notary.
• No translation step. UK documents are already in English — the biggest failure point for applicants from non-English-speaking markets does not apply to you.
• Exact matching. Names, spellings and dates must agree with the lodged application precisely.
• Never send originals. They are not returned.

The set itself — certificate of incorporation, company identifiers, two current identity documents for up to three directors or office bearers, and a short statement of intended Australian activities — is set out with the honest timeline in how to get an ABN as a non-resident.

Sequence it against your first shipment. Import GST recovery runs only from your effective registration date, and backdating is a salvage operation — every month unregistered is a month of border GST donated to the Commonwealth.

Two ways to run it

Do it yourself. The ABR application is free and a well-organised UK company can run it directly. Collect and quality-check the full certified set before lodging, then transmit immediately — that inversion alone prevents most self-managed failures.

The easier path: an experienced registered tax agent. An agent who does non-resident registrations routinely prepares the certified set to the standard the ATO really applies, files it through agent channels, fields ATO questions inside Australian business hours rather than at 3am in London, takes standard GST in the same application so border GST starts returning from your first BAS, and puts the permanent establishment position on file.

What to do next

Run the free two-minute GST registration check against your Australian numbers, then start your ABN and GST application online — roughly ten minutes of scoping questions, with nothing to upload and nothing to pay to begin. A Melbourne registered tax agent — TPB 26121271, a CPA and Chartered Accountant partnership working in English and 中文 — reviews your answers and tells you what your structure needs, and what it does not.

General information only, current at August 2026. It does not take your circumstances into account. Treaty, permanent establishment and GST outcomes depend on your specific facts and on the operative synthesised text of the relevant agreement, and rules can change. Confirm your position with a registered tax agent before acting.