Forming a company in the United States from Australia is very achievable — but the US filing is only one side of the structure. This guide covers both: the US decisions, and what specifically changes because you are resident in Australia.
Can a founder in Australia form a company in the United States?
Short answer: yes — an Australian resident can own 100% of a US company with no exchange controls. Plan the ATO side (worldwide income, CFC rules) and the US LLC pass-through characterisation before you file.
At a glance
| At a glance | |
|---|---|
| Main structures | LLC or C corporation |
| Foreign ownership | 100% permitted — no US residency or visa needed |
| Local director | Not required |
| Registered agent | Required in the state of formation |
| Tax ID | EIN from the IRS |
| Corporate tax | 21% federal (C corp) + state tax where applicable |
| Key foreign-owner filing | Form 5472 + pro forma 1120 for foreign-owned LLCs |
| BOI reporting | Domestic US companies exempt (2026 FinCEN rule) |
Why founders from Australia choose US
Australian founders choose the US for US customers, USD invoicing, US payment rails and access to US investors and app-store economics.
Which company structure should you choose?
- LLC — flexible and light to run; ideal for consulting, services, SaaS invoicing and small trading. A single-member LLC owned by a non-resident is a “disregarded entity” for US tax by default.
- C corporation — the standard choice if you will raise from US or international investors, who expect a Delaware C corp with stock, a board and a cap table.
Foreign ownership, director and address requirements
No US citizenship, residency or visa is required to own a US company, and you do not need a local director. You do need a registered agent with a physical address in your state of formation and an EIN (federal tax ID) to open a bank account and file returns. Delaware and Wyoming are popular, but forming in the state where you actually operate is simpler if you have US staff or premises.
What changes because you are resident in Australia
Being resident in Australia adds a home-country layer on top of the US rules: how the capital leaves Australia, and what you must report there once you own the foreign company. It doesn't stop you — it just needs planning alongside the US steps below.
Australia’s outbound-investment and reporting rules
Australia has no exchange controls, so an Australian resident can invest and fund a foreign company freely. The focus is ATO reporting and worldwide-income tax.
- Declare foreign income in your Australian return, with foreign income tax offsets where available.
- Controlled Foreign Company rules can attribute a foreign company’s profits to you.
- Bank transfers of AUD 10,000 or more are reported by your bank to AUSTRAC.
Documents you will need
- Passport and proof of address for each owner and director
- Proposed company name and chosen state of formation
- Registered-agent details and a US business address
- Ownership split, and for a C corporation the share structure
- Source-of-funds evidence for the initial capital (for banking)
Step-by-step formation process
- Choose entity and state. Decide LLC vs C corporation and the state of formation.
- Appoint a registered agent and file. File the Articles of Organization/Incorporation with the state.
- Get the EIN. Apply to the IRS for the federal tax ID (needed to bank and file).
- Governance docs. Put the operating agreement or bylaws and ownership records in place.
- Bank and set up filings. Open banking (separate process) and set your accounting/filing calendar.
How to send the initial capital
Transfer funds freely; larger transfers are simply reported by your bank to AUSTRAC. Document the capital or loan into the company.
Opening a bank account
US banking is usually the slowest step and approval is never guaranteed. Expect the bank — or a fintech such as Mercury, Brex or Wise Business — to verify the beneficial owner, ask what the business does, and want a real website, customer or contract evidence and a plausible US rationale. Have your EIN and formation documents ready. Some fintechs onboard non-residents remotely; traditional banks may effectively expect a US visit.
Taxation in US
A C corporation pays 21% federal corporate tax plus any state corporate tax, and US withholding can apply to dividends paid to foreign shareholders. A foreign-owned single-member LLC is generally not itself taxed in the US on non-US-source income if it has no US trade or business, but it still has reporting duties. Sales tax is a separate, state-by-state matter driven by economic nexus.
Tax and reporting back in Australia
Separately from US tax, Australia taxes you as a resident and expects the home-country reporting set out above (see “Australia’s outbound-investment and reporting rules”). The practical point is that owning the foreign company is not tax-neutral at home: build both sides into your annual filing calendar rather than treating the US return as the whole picture.
Cross-border tax considerations
Australia taxes residents on worldwide income and its CFC rules can attribute a US company's profits to you. The US–Australia tax treaty and foreign income tax offsets relieve double tax, but the US pass-through LLC can still cause a mismatch — many founders prefer a C corporation.
Annual compliance in US
- Form 5472 + pro forma 1120 — a foreign-owned single-member LLC must file this yearly; the penalty for missing it is steep.
- Federal/state income tax returns (Form 1120 for corporations) plus any state franchise tax.
- State annual report / registered-agent renewal to stay in good standing.
- BOI: domestic US companies are exempt under the 2026 FinCEN rule; it applies only to foreign-formed entities registered in a US state.
Ongoing obligations in Australia
Keep your Australia position current: refresh any foreign-asset or foreign-affiliate disclosures each year, report further investment or repatriation, and keep records tying your shareholding back to the funds that paid for it.
Cost
Look at four separate costs, not one headline number:
- Government cost. State filing fees run from roughly USD 50 to USD 500 depending on the state, plus an annual registered-agent fee (about USD 100–300) and any state franchise tax or annual-report fee.
- Required third-party cost. Any mandatory local role — registered agent/office, company secretary, resident/nominee director or free-zone desk, depending on the country.
- StartEase professional fee. Quoted separately and clearly, so you see exactly what you pay us versus the government.
- Annual recurring cost. Renewals, accounting, tax filings and any local-role fees — ask “what will this company cost me to keep alive after year one?”
Timeline
Treat each regulator and the bank as a separate track — never bundle them into one “ready in X days” promise:
- Company incorporation: Often 1–5 business days; some states offer same-day expedited filing
- EIN (tax ID): Days to a few weeks for a non-resident without an SSN
- Bank account: Reviewed separately — not guaranteed (see below)
Visa and immigration
Forming a US company does not grant the owner or director a visa, work authorisation, US residency or a green card. Ownership and immigration are separate; living or working in the US needs the appropriate visa (for example E-2 or L-1) in its own right.
Common mistakes to avoid
- On the Australia side: ignoring the CFC rules and worldwide-income reporting to the ATO.
- On the US side: missing the annual Form 5472 for a foreign-owned single-member LLC (the penalty is severe).
- Assuming ownership grants a visa or residency — it does not.
- Promising clients a live bank account on day one — onboarding is separate and can be declined.
- Choosing a heavier structure for prestige when a simpler one would cost far less to run.
Who this suits — and who it does not
It suits you if you have a genuine US reason — customers, currency, market access or investors there. It may not suit you if your customers and operations are entirely in Australia with no real US nexus, in which case the extra filings and cross-border reporting add cost without a clear benefit.
How StartEase can help
We handle the US formation end to end — structure and registration, the local roles you need, tax registration and your ongoing filings — and we coordinate with your Australia adviser so the funding route and home reporting line up. Talk to StartEase about your US company.
Sources reviewed
Last reviewed: June 2026.
Important: This is general educational information, not legal, tax, accounting or immigration advice. Rules, rates, fees and thresholds change and depend on your circumstances — confirm the current position with a qualified professional before you act.
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