For internationally mobile individuals, relocating to Germany can be an attractive proposition: a stable economy, strong legal framework, and access to continental European markets. But for those holding significant stakes in companies – whether UK-incorporated or otherwise – establishing German tax residence triggers a set of rules that deserve careful attention long before the move is made.
Chief among these is Germany’s exit tax under Section 6 of the Außensteuergesetz (AStG), which also operates in reverse: it applies not only when a German tax resident leaves, but creates immediate tax exposure upon arrival in certain scenarios – and can cause significant liabilities on departure if planning is deferred.
Establishing Tax Residence in Germany
Under German domestic law, an individual becomes fully tax resident in Germany if they maintain either a permanent residence (Wohnsitz) or a habitual residence (gewöhnlicher Aufenthalt; this is deemed in particular if the habitual residence exceeds six months in a calendar year) in Germany. There is no formal registration test equivalent to the UK’s Statutory Residence Test – the analysis is factual and based on the nature of the individual’s connection to Germany.
A permanent residence does not require ownership. Renting a furnished flat in Germany and spending meaningful time there may suffice. UK residents who purchase property, relocate family members, or divide their time between the UK and Germany should assess their position carefully. Unlike the UK, Germany does not provide a detailed statutory framework setting out the precise number of days required – making each case highly fact-specific.
Where an individual is resident in both Germany and the UK simultaneously, the Germany–UK Double Tax Convention (DTC) tie-breaker rules apply to determine treaty residence. The hierarchy follows the standard OECD model: permanent home, centre of vital interests, habitual abode, nationality. However, treaty residence does not eliminate domestic German tax residence – it only allocates taxing rights. German domestic compliance obligations may still arise.
The Exit Tax: Section 6 AStG in Brief
The Gerrman Exit Tax imposes a deemed disposal of shares in a corporate entity when a German tax resident ceases to be subject to German taxation on those shares. In practice, this means that on departure from Germany – or on a treaty-based reallocation of taxing rights – unrealised gains on qualifying shareholdings are brought into charge as if the shares had been sold at fair market value on the date of departure.
The provision applies to individuals who have held at least a 1% interest in a corporate entity at any point during the five years preceding the triggering event, and who have been subject to German unlimited tax liability (unbeschränkte Steuerpflicht) for at least seven of the preceding twelve years.
The threshold conditions are deliberately broad. They capture:
– Founders and entrepreneurs who have built up significant value in their companies while German resident
– Senior executives and management shareholders in private equity-backed or family-owned businesses
– Individuals holding minority but meaningful stakes across a range of corporate structures
Planning Considerations for UK Residents Moving to Germany
For UK-resident individuals considering a move to Germany – whether temporarily or permanently – the interaction of German unlimited tax residence and the exit tax framework creates a number of planning imperatives:
Assess the five-year lookback: Section 6 AStG applies retrospectively. An individual who becomes German tax resident today begins the clock for the five-year minimum residency threshold. If they hold qualifying shareholdings and depart before five years, the exit tax does not apply – but this requires proactive monitoring rather than assumption.
Understand the valuation method: Exit tax is assessed on the difference between fair market value at departure and the original acquisition cost. For privately held companies, valuation disputes with the German tax authorities (Finanzamt) are common and can be protracted. Pre-departure valuation advice is advisable.
Review DTC protection: Under the Germany–UK DTC, gains on substantial shareholdings are generally taxable only in the state of residence. However, the exit tax is a domestic German provision that pre-empts the DTC by deeming a disposal before residence is lost. Treaty relief may be limited.
Reconsider the holding structure: In some cases, interposing a holding entity prior to establishing German residence – or restructuring the shareholding in advance of a planned relocation – can mitigate the eventual exit tax exposure. Such planning requires careful lead time and early engagement.
Practical Takeaway
Germany remains an attractive jurisdiction for internationally connected individuals, and the German tax system offers a range of legitimate structures for those arriving with significant assets or business interests. However, the exit tax under Section 6 AStG is not a technical footnote – it is a material liability that can crystallise on departure without warning if not properly planned for.
UK-resident individuals who are considering establishing a German Wohnsitz, whether for lifestyle, business, or family reasons, should seek integrated advice covering both German and UK tax implications before any move is made. The interaction of UK capital gains rules, the Germany–UK DTC, and the revised AStG framework creates a planning matrix that is complex but entirely manageable with early engagement.