Germany sorts taxpayers into two buckets based on their ties to the country. Unlimited tax liability means Germany taxes your worldwide income; limited tax liability means Germany taxes only what you earn from German sources. The difference between unlimited and limited tax liability in Germany turns on one question: do you have a home or a sustained physical presence in the country? If yes, everything you earn anywhere is on the table. If no, only your German-sourced income is.
What Triggers Unlimited Tax Liability
Section 1 of the German Income Tax Act (Einkommensteuergesetz, or EStG) makes you an unlimited taxpayer once you maintain a domicile or a habitual abode in Germany.1Finanzämter Baden-Württemberg. Under What Conditions Am I Liable for Income Tax? Neither term means what casual usage suggests.
A domicile does not require you to actually live in Germany. A furnished apartment kept available for your use is enough, even if you spend most of the year abroad. A habitual abode is established by more than six months of physical presence in Germany during a single calendar year, or by a continuous six-month stretch that crosses the turn of the year.2PwC. Germany – Individual – Residence Nationality and formal registration with a tax office don’t decide the question. An actual dwelling or sustained presence does.
Cross either threshold and Germany taxes your worldwide income. Wages earned in the United States, dividends from a Singapore brokerage, rent from a flat in Spain — all of it goes on your German return. The law sorts everything into seven categories: agriculture and forestry, trade or business, self-employment, employment, capital investments, renting and leasing, and a residual “other income” bucket that captures pensions and certain capital gains. Your annual return has to account for all of them.
The practical trap for people who split time between countries is that keeping an unused apartment in Berlin can, on its own, pull your entire global income into the German tax base. If you’re a resident under the domestic laws of both Germany and another country, the applicable tax treaty typically breaks the tie by looking at where your center of vital interests lies, meaning where your personal and economic connections are strongest.2PwC. Germany – Individual – Residence Getting the classification wrong can produce double-taxation disputes that take years to unwind.
What Limited Tax Liability Covers
If you have no home and no habitual abode in Germany but still earn money there, you fall under limited tax liability. Section 1, Paragraph 4 of the EStG restricts Germany’s reach to income generated inside the country, ignoring your worldwide wealth entirely.1Finanzämter Baden-Württemberg. Under What Conditions Am I Liable for Income Tax? Foreign owners of German rental property and foreign investors operating through a local branch typically land here.
The significant disadvantage of this status is that non-residents generally do not receive the basic tax-free allowance (Grundfreibetrag), which shields the first €12,348 of annual income for residents in 2026. Your first euro of German-sourced income is taxable.
Section 49 of the EStG catalogs the income types that create a German tax obligation for non-residents.3Federal Central Tax Office (BZSt). Income Tax Act (EStG) Section 49 – Limits Taxable Income The categories foreign owners most often encounter:
- Business profits from a trade or business conducted through a permanent establishment or permanent representative in Germany.
- Rental income from letting German real estate, residential or commercial.
- Wages for work physically performed in Germany, regardless of where the employer is based.
- Fees from independent professional services performed or used in Germany.
- Capital gains from selling shares in a German corporation if your stake reached 1% at any point in the preceding five years.
- Dividends and interest from German sources, generally collected through withholding.
Collection is often handled at the source. Professional fees paid to non-resident artists, athletes, or consultants are withheld at 15% of gross revenue under Section 50a of the EStG, plus the solidarity surcharge.4Federal Central Tax Office. Tax Withholding Amount Dividends from German corporations to foreign shareholders face 25% withholding plus the surcharge, though tax treaties often reduce this rate.5Germany Trade and Invest. Investor’s Basics 2026 – Corporate Taxation
Rental income is where foreign property owners most often stumble. Germany does not apply withholding tax to rental income. Non-resident landlords have to file a German tax return and pay income tax on their net rental profit directly. Assuming that withholding takes care of everything is how foreign owners end up in trouble with the tax authorities.
Electing to Be Treated as a Resident
Section 1, Paragraph 3 of the EStG lets some non-residents ask to be treated as though they were fully resident, which opens up the basic allowance and deductions that limited-liability taxpayers otherwise can’t claim. You qualify if at least 90% of your total worldwide income is subject to German taxation in the year, or if the portion Germany does not tax stays below the basic allowance (€12,348 in 2026).1Finanzämter Baden-Württemberg. Under What Conditions Am I Liable for Income Tax?
The election requires a formal application and a certificate from your home country’s tax authority documenting your worldwide income. The provision exists mostly for cross-border commuters and for retirees whose income comes almost entirely from German pensions. A U.S. resident collecting rent on one Berlin apartment while drawing a full American salary will not meet the 90% threshold, so this route won’t help.
How the Same Framework Applies to Companies
The Corporate Tax Act (Körperschaftsteuergesetz, or KStG) mirrors the individual rules. A company has unlimited liability, and therefore owes tax on worldwide profits, if its registered office or place of effective management is in Germany. The corporate income tax rate is a flat 15%, plus a 5.5% solidarity surcharge on that tax, for a combined rate of roughly 15.8% before trade tax is added.6Germany Trade and Invest. Corporate Taxation in Germany
A foreign corporation with no German management presence falls under limited liability only if it maintains a permanent establishment or owns German real estate. In those cases Germany taxes only the profits attributable to the local branch or asset. The Federal Central Tax Office looks closely at how income is split between the foreign head office and its German branch.
What Creates a Permanent Establishment
Under Section 12 of the German Fiscal Code (Abgabenordnung), a permanent establishment is a fixed place of business through which a company carries out its operations. The critical requirement is that the foreign enterprise must have actual authority over the premises, not merely use another company’s space while performing services for it. A foreign contractor working for years inside a German client’s office does not create a permanent establishment if it has no independent right to access or control that space. The enterprise must be a lessee or hold equivalent possessory rights, with nondeniable access to specific premises.
The distinction matters for foreign companies sending employees to Germany on long-term projects. If your people work from a dedicated office your company controls, you likely have a permanent establishment and German corporate tax exposure. If they work from the client’s premises under the client’s direction, you probably don’t. The gap between those two scenarios can mean hundreds of thousands of euros in unexpected tax.
What the US-Germany Treaty Changes
The income tax treaty between the United States and Germany keeps the same income from being fully taxed by both countries. For most categories it assigns primary taxing rights to one country and requires the other to either exempt the income or credit the foreign tax paid. Under Article 6, income from real estate is taxed where the property sits, so German rental income remains fully taxable in Germany regardless of the owner’s residence.7Internal Revenue Service. United States-Germany Income Tax Treaty
The treaty reduces German withholding on dividends paid to U.S. residents from 25% to 15% in most cases, and to 5% when a U.S. parent corporation owns at least 10% of the German company paying the dividend. Interest generally faces a 0% withholding rate under the treaty, with an exception for profit-linked interest that can be taxed at 15%.7Internal Revenue Service. United States-Germany Income Tax Treaty
The Saving Clause for Americans
U.S. citizens and green card holders need to read Article 1, Paragraph 4 carefully. The saving clause preserves the United States’ right to tax its own citizens and residents on worldwide income regardless of what the treaty otherwise provides.8German Missions in the United States. Double Taxation – Taxes on Income and Capital An American living in Germany files in both countries: Germany taxes worldwide income because of residence, the U.S. taxes it because of citizenship. The foreign tax credit on the U.S. return prevents actual double taxation in most cases, but the treaty does not eliminate the U.S. filing obligation. Former U.S. citizens and long-term residents can remain subject to U.S. taxation for up to ten years after giving up their status.
The Progression Clause
Germany applies a mechanism called the Progressionsvorbehalt when income is exempt under a treaty. If part of your income is exempt from German tax because the treaty gives taxing rights to the other country, Germany still uses that exempt income to fix the rate applied to the income it does tax. Your German tax rate rises as though you had earned everything in Germany, but only the German-taxable portion is actually taxed.
For a U.S. resident who has elected deemed-resident status, an American salary that Germany can’t tax can still push German rental income into a higher bracket. The clause doesn’t create a new tax. It adjusts the rate on the income already inside the German base, and the effect can be substantial when foreign income is large compared with German income.