Leaving your country of tax residency sounds simple. In practice, it is one of the most legally sensitive moves an entrepreneur can make. Here are the 6 most costly mistakes and how to avoid them.
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Tax authority disputes over residency changes are one of the fastest-growing areas of international tax enforcement. Spain, Germany, Italy, and the UK are all actively auditing high-earners who claim to have changed tax residency — often years after the purported change. The financial consequences can be devastating.
FIXE GROUP has guided 230+ clients through legally sound residency exits. We document every step, coordinate with local advisors in the origin and destination countries, and create an exit file that can withstand tax authority scrutiny.
Exiting your tax residency incorrectly is one of the most expensive mistakes an international entrepreneur can make. Common errors include: not deregistering formally from your origin country, maintaining a home there, spending too many days in the old country, not obtaining a tax residency certificate in the new country, transferring assets without considering exit taxes, and having a corporate structure that keeps you taxable in the old jurisdiction. Each of these can result in your home country claiming that you never actually left.
The most common and costly mistake. Simply moving abroad and stopping filing tax returns in your home country is not sufficient. Spain (Art. 9 LIRPF), Germany (§ 1 EStG), and France (Art. 4 B CGI) all allow the tax authority to assert tax residency based on factual circumstances even without formal registration. You must formally deregister: baja del padrón in Spain, Abmeldung at the Einwohnermeldeamt in Germany, formal notification to HMRC in the UK.
Most tax treaties assign residency to the country where you have a 'permanent home available.' If you maintain a property in Spain while claiming residency in Panama, Spain will assert that the Spain property is your permanent home and apply the treaty tie-breaker in its favor. The fix: sell or rent out the property to a third party at market rates, or at minimum take no personal use of the property.
Spain: 183 days triggers residency. Germany: 183 days OR having a home (Wohnsitz). UK: Statutory Residence Test — spending 90+ days in the UK when combined with other factors (job, family, property) can trigger UK residency even for those living abroad. Track your days carefully. Book travel to minimize days in the old jurisdiction in the transition year.
Your new country of residence must issue you a Tax Residency Certificate — the document that proves where you are a resident for treaty purposes. Most countries issue this after 183 days or formal registration. Without it, your origin country will not recognize your change of residency and will continue to assert global taxing rights.
Spain (Art. 95 bis LIRPF), Germany (§ 6 AStG), and France (Art. 167 bis CGI) all impose exit taxes on unrealized capital gains when you leave as a resident. These are triggered by the presence of qualifying assets above threshold amounts. The tax is assessed in the year of departure — often on assets you have not yet sold, creating a cash flow problem. Careful planning of asset disposals before departure can reduce or eliminate exit tax exposure.
If your company is registered in your old country of residence, it will continue to be taxed there regardless of where you live. And if you remain a director or controlling shareholder, the company may still be considered resident there (based on place of effective management rules). Plan your corporate restructuring alongside your personal exit.
Legal basis
OECD Model Convention Art. 4
Spain: Arts. 9 and 95 bis LIRPF
Germany: § 1 EStG, § 6 AStG
UK: Finance Act 2013, Schedule 45 (SRT)
France: Arts. 4B and 167 bis CGI
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