How Australian Defence Companies Can Set Up in the UK
Part of the Paul Beare UK Expansion Knowledge Hub.
AUKUS has moved from a political headline to a live commercial opportunity for Australian defence suppliers. Programmes like the Australian Submarine Supplier Qualification scheme and the ASC-BAE Systems supply chain qualification pathway are actively linking Australian manufacturers into UK submarine and broader defence industrial bases. UK ministers have been explicit that there’s room for Australian industry to contribute more.
Getting qualified as a supplier is one process. Operating as a company in the UK is a separate one, and it’s the part that catches most Australian defence businesses out. Winning a UK contract or joining a UK supply chain doesn’t automatically give you a legal UK presence, a UK bank account, or the ability to employ UK staff. Those all have to be built, and defence work adds compliance layers that a standard market-entry checklist doesn’t cover.
This guide sets out what an Australian defence supplier actually needs to put in place to operate in the UK, from choosing the right entity through to the compliance requirements that sit specifically around defence contracting.
What Is UK Market Entry for a Defence Supplier
UK market entry, in this context, means establishing the legal, financial and operational infrastructure needed to trade as a company in the UK. For most overseas businesses that means registering an entity, opening a bank account, and setting up payroll and tax registrations. For a defence supplier, it also means satisfying the specific requirements that UK primes and the Ministry of Defence attach to their supply chains, which can include security vetting for staff working on sensitive programmes and compliance with export control rules on technology transfer.
None of this is handled by the AUKUS qualification programmes themselves. AUSSQ and the ASC-BAE Systems pathway qualify your company and your product. They don’t register a UK entity, open a UK bank account, or put UK employment contracts in place. Those steps sit with you, and they need to be done before you can invoice, pay staff, or hold a UK-based team.
Why It Matters for Overseas Companies
The commercial upside is real. UK ministers have confirmed the Australia-UK Defence Industry Dialogue is actively expanding supply chain cooperation, and Australian firms are already being placed inside UK shipyards to gain hands-on experience on nuclear submarine construction. That level of integration signals genuine, long-term contract opportunity, not a one-off tender.
The risk is moving too slowly on the corporate side once the commercial door opens. A UK prime contractor or the MOD will expect a supplier to be operationally ready: a UK entity that can sign contracts, a UK bank account that can receive and make payments in sterling, and, in most cases, a UK-based team who understand UK compliance requirements without your Australian head office having to manage it all remotely. Suppliers who leave this until after they’ve won work often find themselves trying to set up a company, a bank account and payroll simultaneously, under contract deadline pressure.
How It Works in the UK
The first decision is entity structure. Most Australian defence suppliers moving into ongoing UK delivery, rather than a single short-term project, are better served by a UK subsidiary https://www.paulbeare.com/set-up-a-uk-subsidiary/ rather than a branch https://www.paulbeare.com/set-up-a-uk-branch/. A subsidiary is a separate UK legal entity, which limits liability back to the Australian parent and is generally viewed more favourably by UK primes and the MOD, since it demonstrates a genuine, permanent UK commitment rather than a temporary presence. A branch can work for narrower, time-limited engagements, but it ties the UK activity legally to the Australian parent company. The comparison is covered in more detail here https://www.paulbeare.com/branch-vs-subsidiary-vs-representative-office/.
Once the entity type is decided, registration with Companies House establishes the UK company itself. This is the foundation everything else sits on: you can’t open a UK bank account, register for VAT, or set up PAYE without a registered company number. The full process is set out here https://www.paulbeare.com/uk-company-formation/.
With the entity registered, a UK business bank account https://www.paulbeare.com/uk-business-bank-account/ is next. Defence contracts are typically paid in sterling on UK terms, and most UK primes expect to pay a UK bank account rather than transfer internationally to Australia. Banks will want to see the company’s UK registration, its ownership structure, and often some detail on what the UK entity actually does, so this is worth starting early rather than assuming it will be quick.
If you’re placing Australian staff in the UK or hiring locally, employment infrastructure needs to be in place before anyone starts. That covers UK employment contracts, PAYE registration, and pension auto-enrolment, all detailed here https://www.paulbeare.com/hiring-employees-in-the-uk/. If you’re bringing Australian nationals across rather than hiring UK-based staff, you may also need a UK Sponsorship Licence https://www.paulbeare.com/uk-sponsorship-licence/, which has its own application timeline and shouldn’t be left until a placement is imminent.
Key Compliance Requirements
Standard UK company compliance applies in full: Companies House filings, Corporation Tax registration, and VAT registration https://www.paulbeare.com/vat-registration-uk/ once you cross the VAT threshold or choose to register voluntarily. Payroll compliance, covering PAYE, National Insurance and statutory payments, applies from the point you employ anyone in the UK, and is covered here https://www.paulbeare.com/payroll-services-uk/.
Defence work adds two further layers. Export control compliance governs the transfer of controlled technology, technical data and, in some cases, knowledge between Australia and the UK, and applies separately from standard trade rules. Personnel security requirements mean staff working on sensitive UK defence programmes may need security clearance before they can be placed on a contract, which has its own lead time and should be factored into any UK placement plan well ahead of a contract start date. Neither of these replaces standard UK company compliance; they sit on top of it.
Common Mistakes International Businesses Make
The most frequent mistake is treating AUKUS supplier qualification as equivalent to being UK-ready. Qualification confirms your product or capability meets the programme’s standard. It says nothing about whether you have a UK entity, a UK bank account, or the ability to legally employ someone in the UK, and primes will expect all three to be sorted well before delivery starts.
A second common mistake is choosing a branch structure by default because it seems simpler, without considering that most UK primes and the MOD prefer to contract with a UK subsidiary. Switching structure later, after contracts and bank accounts are already in place, is far more disruptive than choosing correctly from the start.
A third is underestimating timelines for personnel security clearance and sponsorship licences. Both processes run on their own schedules, independent of how quickly the company itself can be registered, and starting them late is one of the most common causes of delayed contract mobilisation.
How Paul Beare Helps With This
Paul Beare works with overseas companies, including those moving from Australia into the UK https://www.paulbeare.com/setting-up-in-uk/australia-uk/, on exactly this kind of structured market entry. That includes advising on subsidiary versus branch structure, handling UK company formation and Companies House compliance, setting up UK banking, and putting payroll and employment contracts in place for UK-based or transferred staff. For a defence supplier moving from AUKUS qualification into active UK delivery, the priority is having the corporate, banking and payroll infrastructure ready before contract mobilisation, not scrambling to build it once a contract is signed. Legal and compliance support, including the operational side of UK entity obligations, is covered here https://www.paulbeare.com/legal-compliance/.
Questions & Answers
Does AUKUS supplier qualification give us a UK company automatically?
No. Qualification confirms your product or capability meets the programme’s standard. Registering a UK entity, opening a UK bank account and setting up payroll are separate steps you need to arrange yourself.
Should we set up a branch or a subsidiary for UK defence work?
Most suppliers moving into ongoing delivery are better served by a subsidiary, since it limits liability to the UK entity and is generally viewed more favourably by UK primes and the MOD. A branch may suit a narrower, time-limited engagement.
How early should we start on personnel security clearance?
As early as possible once a UK placement looks likely. Clearance timelines run independently of company set-up and are one of the most common causes of delayed contract starts.
Can we pay UK staff from our Australian bank account?
No. UK employees need to be paid through a UK payroll system linked to a UK bank account, with PAYE and National Insurance handled correctly from the first pay run.
If your business is qualifying into UK defence supply chains under AUKUS and needs to get the UK company, banking and employment side sorted before contract mobilisation, get in touch with Paul Beare https://www.paulbeare.com/contact/ about UK company formation and market entry support built specifically for overseas defence and industrial suppliers.
