Expat Tax Residency in Germany

Expatriates who establish a connection to Germany often find that German tax liability begins earlier than expected and extends further than anticipated. This page summarises the statutory framework governing when an individual becomes a German tax resident, what worldwide-income obligations follow, and what applies when residency ends.

What triggers German tax residency?

German domestic law establishes two independent tests under the Abgabenordnung (Fiscal Code). Satisfying either one is sufficient to trigger unbeschraenkte Steuerpflicht (unlimited tax liability) under Section 1(1) of the Einkommensteuergesetz (EStG) [SC1].

Wohnsitz (domicile) under Section 8 AO. A person has a Wohnsitz wherever they maintain a dwelling under circumstances that indicate they intend to retain and use it. The test is facts-and-circumstances: it focuses on whether the dwelling is available for the individual to use as a residence, not on how often they actually stay there. A rented flat, a family home, or even a room in a shared property can constitute Wohnsitz if it remains accessible. Critically, Wohnsitz persists until the dwelling is genuinely relinquished -- physical absence from Germany does not terminate it while the accommodation remains available. Selling or letting the property on a long-term basis is typically required to extinguish Wohnsitz [SC1].

Gewoehnlicher Aufenthalt (habitual abode) under Section 9 AO. A person has their gewoehnlicher Aufenthalt in Germany when they are continuously present there for a period that generally exceeds six months (183 days) within a calendar year, or a consecutive six-month period spanning a year-end, with brief interruptions disregarded [SC2]. This test catches incoming assignees who have not yet established a permanent dwelling: once the six-month threshold is crossed, worldwide-income reporting applies from day one of the German presence, not from day 183 onward.

The 183-day rule in a double taxation agreement (DTA) is a separate concept. DTA tie-breakers resolve which country has primary taxing rights when an individual is a resident of both contracting states simultaneously. The DTA tie-breaker hierarchy runs: permanent home availability, centre of vital interests, habitual abode, nationality [SC2]. Passing the DTA tie-breaker in favour of another country reduces German taxing rights over foreign-source income but does not necessarily extinguish German filing obligations on German-source income.

What does unlimited tax liability mean in practice?

Residents are taxed on their worldwide income -- employment, self-employment, rental income, capital gains, dividends, pensions, and foreign bank interest [SC2]. A special rule known as the Progressionsvorbehalt (progression clause) applies to income exempt under a DTA: the exempt foreign income is added to the taxable German income solely to determine the applicable tax rate, then that rate is applied to the German income only. This can materially increase the effective tax burden on German-source income for expatriates with significant offshore earnings [SC2].

German income tax rates and additional levies

German income tax is geometrically progressive. For the 2025 assessment year the Grundfreibetrag (basic personal allowance) is EUR 12,096 for single filers (EUR 24,192 for jointly assessed married couples). Above the allowance, effective rates rise continuously until reaching the flat top rates [SC3].

In addition, the Solidaritaetszuschlag (solidarity surcharge) of 5.5 percent of the income tax amount applies for filers whose income tax liability exceeds EUR 19,950 (single) or EUR 39,900 (jointly assessed). The surcharge was largely abolished for low and middle earners from 2021; it now falls primarily on higher-income residents [SC3]. Members of a recognised church also pay Kirchensteuer (church tax) at 8 to 9 percent of the income tax amount depending on the federal state of residence [SC3].

Steuer-ID: the tax identification number

Every person registered in Germany receives a Steueridentifikationsnummer (Steuer-ID), an 11-digit permanent identifier issued by the Bundeszentralamt fuer Steuern (BZSt). The number is assigned automatically after address registration (Anmeldung) at the local Buergeramt and is mailed to the registered address within two to four weeks. The Steuer-ID does not change with relocation, name change, or marital status; it remains valid for life. Individuals who need the number sooner can visit their local Finanzamt in person with their passport and registration confirmation [SC4].

Exit considerations: Wegzugsteuer and extended limited liability

When an individual ceases German tax residency, two provisions can extend German taxing rights beyond departure.

The Wegzugsteuer (exit tax) under Section 6 of the Aussensteuergesetz (AStG) applies if the individual was subject to unlimited German tax liability for at least seven of the prior twelve years and held a significant shareholding (1 percent or more in a corporation) at any point in the five years before departure [SC5]. The tax treats the departure date as a deemed disposal at fair market value; 60 percent of the resulting deemed gain is included in income and taxed at the individual's personal marginal rate under the Teileinkuenfteverfahren. For non-EU departures, payment may be spread across seven annual instalments following 2022 reforms. EU and EEA destinations retain the option of interest-free deferral until actual disposal [SC5].

The Erweiterte beschraenkte Steuerpflicht (extended limited liability) under Section 2 AStG applies to German nationals who were residents for at least five of the ten years before departure and relocate to a low-tax country (a jurisdiction where the individual's income would be taxed at less than two-thirds of the German burden). If the individual retains substantial economic interests in Germany, German-source income remains taxable in Germany for up to ten years post-departure at progressive rates rather than standard withholding rates [SC5].

For a broader picture of how Germany fits within the network of bilateral treaties and how foreign taxes can be credited, see the Germany country overview. A qualified Steuerberater (registered with the zustaendige Steuerberaterkammer) can assess which provisions apply to a specific situation. Browse the Germany directory to find a local professional.

This page presents general factual information sourced from primary authorities and does not constitute personalised guidance. Residency determinations depend on individual facts and circumstances; consult a qualified professional before making decisions.