If you are a sole proprietor, sole trader, micro-entrepreneur, Freiberufler or any other flavour of solo self-employed person, moving abroad raises a question that a lot of people get wrong: can you keep your home-country registration while living somewhere else?

The short answer is usually yes technically, but no in practice. The longer answer depends on which country you are leaving, which country you are moving to, and what kind of work you do. This guide walks through the universal rules, then looks at the main self-employed statuses in the US, UK, Canada, Australia and France, and finally at the alternatives, including umbrella / portage structures and Estonian e-Residency.

For an overview of the broader entrepreneurial strategy abroad, see our guide to entrepreneurship abroad.

The universal principle: your business lives where you do

Every country’s tax authority works from the same starting point: a sole proprietorship or sole trader is not a separate legal entity. It is you, doing business. The business is therefore tax-resident wherever you are tax-resident.

This has three practical consequences:

  1. Moving your tax residence usually moves your business. If you become tax-resident in Portugal, your French auto-entreprise or your UK sole-trader business does not magically stay in France or in the UK. Its profits become taxable in Portugal.
  2. A “permanent establishment” can be created abroad. Most double-tax treaties (the OECD Model is the template) define a permanent establishment as a fixed place of business, and working from your apartment abroad for six months typically qualifies. The country where you live can then tax the profits generated from there.
  3. Your home-country registration, on its own, proves nothing. Tax authorities look at facts: where you live, where you work from, where your clients are, where your income lands. A VAT number or business registration is administrative; residence is factual.

The only cases where keeping a home-country self-employed status after moving abroad makes sense are short stays (less than six months), temporary assignments covered by a posted-worker certificate (A1, Certificate of Coverage), or situations where the home country itself has a formal non-resident self-employed regime (rare; Estonia is the main example, through e-Residency).

United States: sole proprietorship, single-member LLC, and the citizenship trap

In the US, a sole proprietorship is the default unregistered self-employed status: you report your business on Schedule C of your personal 1040. A single-member LLC is a separate legal entity but is treated as a “disregarded entity” for federal tax purposes, so it also flows through to Schedule C. The IRS sole proprietorship page and the SBA guide are the canonical references.

What happens when a US self-employed person moves abroad:

  • The citizenship-based taxation problem. US citizens and green card holders remain subject to US federal tax on worldwide income regardless of where they live. A Californian sole proprietor moving to Portugal still owes US taxes, but typically no state tax once state residence is broken.
  • Self-employment tax (15.3 %) is assessed on net self-employment income. The Foreign Earned Income Exclusion (FEIE) on Form 2555 does not exempt you from self-employment tax, though a Totalization Agreement with the new country may.
  • Double social charges. Without a totalization agreement (the US has them with ~30 countries; see SSA list), you may pay both US self-employment tax and local social contributions. This alone has driven many expats to incorporate a local company.
  • LLC traps abroad. A US single-member LLC is ignored by the IRS but is often treated as a company by foreign tax authorities (France, Germany, Spain), creating tax asymmetries: you can end up paying corporate tax locally on what the IRS sees as personal income.

Bottom line: an American sole proprietor moving abroad almost always needs to choose between continuing to operate as a US sole prop under FEIE/foreign tax credits, incorporating a US S-Corporation to reduce self-employment tax, or re-registering in the new country. The right answer depends on the host country and the client base.

United Kingdom: sole trader, limited company, and IR35

The UK has two main self-employed structures. A sole trader registers with HMRC and reports business profits through Self Assessment. A limited company is a separate legal entity paying corporation tax, with the director paid through a mix of salary and dividends. See the HMRC guide to working for yourself and Companies House.

What happens when a UK self-employed person moves abroad:

  • Sole trader abroad. A UK sole trader moving abroad can, in theory, keep the HMRC registration. In practice, if you become non-UK resident under the Statutory Residence Test, HMRC typically stops taxing your foreign-earned profits, but the new country will. At that point keeping the UK registration adds complexity without benefit.
  • Limited company and residence. A UK Ltd is tax-resident where it is centrally managed and controlled. A sole director working from Portugal for six months can drag the company’s tax residence to Portugal, triggering Portuguese corporate tax.
  • IR35 implications. UK contractors using a personal service company need to watch IR35 carefully when clients are foreign. HMRC’s off-payroll working rules remain relevant, but once you are non-UK resident and no longer invoicing UK clients, IR35 usually stops being the primary risk. Substance in the new jurisdiction becomes the focus instead.
  • VAT. A UK sole trader above the VAT threshold who moves abroad needs to review whether UK VAT still applies. Most service exports to non-UK business clients are outside the scope of UK VAT; the reverse charge rules of the client country then apply.

Bottom line: UK sole traders moving abroad generally deregister from HMRC’s self-employed scheme and register locally. UK Ltds continue to exist but require careful management to avoid accidental dual residence.

Canada: self-employed and the sole proprietorship

A Canadian sole proprietor reports business income on form T2125 of the T1 personal return. See the CRA guide for self-employed individuals.

What happens when a Canadian self-employed person moves abroad:

  • Deemed disposition. When you cease Canadian tax residence, most of your capital property is treated as sold at fair market value, which is Canada’s exit tax. Business goodwill and client lists can be caught.
  • HST / GST. A self-employed Canadian moving abroad typically deregisters from HST / GST unless they continue to sell to Canadian clients above the threshold.
  • CPP contributions. Stop once you are no longer a Canadian resident and no longer earning Canadian-source self-employed income.
  • Withholding on Canadian clients. Non-resident self-employed individuals invoicing Canadian clients may face Regulation 105 withholding (15 %) on services performed in Canada, recoverable on a Canadian non-resident return.

Bottom line: Canada takes its exit tax seriously; planning the departure date and any disposals carefully matters far more than whether to keep the sole-proprietor registration.

Australia: sole trader and the ABN

In Australia, a sole trader holds an Australian Business Number (ABN) and reports business income on the individual tax return. The ATO sole trader guide and the ABR are the references.

What happens when an Australian self-employed person moves abroad:

  • ABN cancellation. If you stop carrying on an enterprise in Australia, you are supposed to cancel the ABN. Keeping it while operating abroad is generally inconsistent with the ATO’s definition of an enterprise.
  • CGT event I1. Ceasing Australian residence triggers a deemed disposal of most non-Australian assets, including business goodwill built abroad. You can elect to defer by keeping the asset taxable in Australia, useful in specific cases but a trap in others.
  • GST. Cancel the GST registration when the enterprise ceases; ongoing Australian-client invoicing can still require GST in some cases.
  • Superannuation. Contributions to super are not deductible after leaving; existing balances can usually be preserved or accessed under specific conditions.

Bottom line: the ABN is designed for Australian enterprises. Relocating normally means cancelling it and registering in the new country.

France: micro-entrepreneur / auto-entrepreneur

France’s micro-entrepreneur regime (formerly auto-entrepreneur) is probably the simplest self-employed status in the OECD: a single registration, a unified social-and-tax contribution on turnover, and reduced VAT obligations below the thresholds. Over 2.5 million French residents use it.

The key constraint: the micro-entrepreneur regime requires residence in France. Under URSSAF and tax-authority rules, social contributions are owed by a person who lives and works in France. Once you become tax-resident abroad, the legal basis for the regime evaporates.

What typically happens:

  • Keeping the micro-entreprise after moving abroad usually leads to double social contributions (one in France, one in the new country) and double income tax on the same business profits, mitigated only partially by treaties.
  • Permanent establishment risk. Your French clients will still issue invoices to a French SIRET, but the work is done from your home abroad, which is a textbook permanent establishment in the host country.
  • No more favourable tax regime. The 66 % / 71 % / 87 % abatement that makes the micro-entreprise attractive to French residents does not apply to non-residents.
  • The correct move is to close the micro-entreprise before departure (or within a reasonable timeframe afterwards) and register locally. France keeps this process relatively simple once you have a foreign tax residence certificate.

The auto-entrepreneur / micro-entrepreneur case is a good illustration of a universal rule: simple regimes are built on an assumption of local residence.

Three alternatives if you do not want to register locally

1. Umbrella / portage companies

Every major economy has a version. The idea is to be employed by a third-party company that invoices your clients on your behalf, handles taxes and social contributions, and pays you a salary.

  • US: S-Corporation pass-through setups or Professional Employer Organizations (PEOs).
  • UK: umbrella companies (see HMRC’s guide for agency workers and umbrella companies).
  • Canada: Employer of Record services and incorporated self-employment.
  • Australia: payroll / umbrella providers.
  • France: portage salarial, where you become an employee of the portage company and invoice clients through it.

Umbrella structures are convenient when you move frequently, work for a limited number of clients, or want social protection without incorporating. They typically reduce net income by 8–15 % in exchange.

2. Estonian e-Residency

Estonia’s e-Residency scheme allows non-residents to manage an Estonian OÜ (limited company) fully online. For solo service providers with international clients, the benefits are real:

  • Fully digital company management from anywhere
  • 0 % corporate tax on undistributed profits; 22–25 % only on distributed dividends
  • Direct access to EU banking and payment infrastructure

The key caveat: Estonian e-Residency is not a tax residency. You remain personally tax-resident wherever you actually live. The company itself may be deemed tax-resident in your country of residence if you manage it from there and your country applies place-of-management rules, a recurring issue in France, Germany, Spain.

See the official e-Resident Estonia portal and our detailed guide on Estonian e-Residency.

3. Local incorporation

For most solo professionals relocating long-term, the most stable answer is simply registering in the new country:

  • A local limited company (LDA in Portugal, Ltd in Cyprus, LLC in the US, PT in Indonesia, etc.) or the local equivalent of sole trader status
  • Genuine local substance (office or coworking contract, local bank account, local accountant)
  • Full use of local treaty benefits and special regimes (IFICI in Portugal, Beckham law in Spain, impatriate regime in Italy)

This is more administrative work upfront but eliminates the permanent-establishment question, which is the biggest risk of keeping a home-country status indefinitely.

A decision framework

Before you choose, answer four questions in order.

  1. Are you moving permanently (more than 183 days per year) or temporarily?

    • Temporary, less than 6 months, same year: keeping your home-country status is usually fine.
    • Permanent: you need a local structure or a universal one (Estonia, portage).

  2. Do your clients care how you invoice?

    • Big corporate clients often require local tax registration.
    • Startups and international clients rarely do.

  3. What is the tax regime of the new country for your activity?

    • A Beckham-law Spain, a Portuguese IFICI, or a Cyprus non-dom status can be materially better than anything your home country offers.
    • A high-tax country (France, Germany, Belgium) may make Estonian e-Residency attractive.

  4. Is there a totalization / social security agreement between your countries?

    • Yes: you generally pay social contributions in only one of them.
    • No: you risk paying in both, which often tips the decision toward local registration.

Mistakes I see over and over

  • Moving and keeping the home-country status by default, then discovering the double-tax bill two years later.
  • Assuming a US LLC or Estonian OÜ solves tax residency. Neither does.
  • Forgetting to cancel GST / VAT / ABN / micro-entreprise registrations after moving, which triggers reminders, penalties and non-filing fines.
  • Underestimating the exit tax (Canada, France, Germany, Australia) on business goodwill or shareholdings.
  • Using a portage / umbrella structure in the wrong country: you need the umbrella in the country where you pay taxes, not in the country you left.

What to do, concretely

A short action list that works for most cases:

  1. Confirm your tax residence in both countries (entry and exit), ideally with a residence certificate from the new country.
  2. Check the treaty between your home country and the new country, and specifically the permanent-establishment article.
  3. Check the social security agreement (totalization agreement, bilateral convention).
  4. Decide between local registration, umbrella / portage, or an international structure (Estonia).
  5. Close the home-country registration when appropriate, with a clear departure date.
  6. Keep all the paperwork: lease, utility bills, tax certificates, flight records.

For a country-by-country view of the available statuses, see freelance abroad: legal status. For destination-specific considerations, the country guides cover visas and local registration details: Portugal, Estonia, Spain, UAE / Dubai, Georgia.

And for the broader strategic picture, the entrepreneurship abroad hub ties these threads together.