U.S. EXPAT TAX GUIDE – GERMANY
US tax filing guide for American expats in Germany
“Many Americans living in Germany worry about being taxed twice.
US taxation is based on citizenship rather than residency; therefore, relocating to Germany does not eliminate your US tax filing obligations.
Fortunately, most expatriates do not end up paying tax twice on the same income, provided they file their returns correctly and utilize the applicable tax relief provisions.”
Written By: Sparsh Ganeriwala, EA
Updated on March 05, 2026
Table of Contents
This guide explains the US filing rules that continue to apply when you live overseas and shows how those rules work in practice when German taxes enter the mix.
Do you have to file a US tax return from Germany?
In most cases, yes. The US taxes based on citizenship, not residence. That means the IRS expects a tax return from you even if:
- All your income is earned in Germany
- You pay German taxes
- You have not lived in the US for years
You generally must file if you are:
- A US citizen
- A Green Card holder, even if you live permanently in Germany
- A dual citizen who still meets US filing thresholds
- An “accidental American” who has not formally renounced US citizenship or otherwise ended US tax obligations
Whether you owe US tax depends on income levels, German taxes paid, and which relief tools you use. But the filing requirement itself is not optional.
📌 Note: Filing is not the same as paying. Many American expats in Germany file every year and end up owing little or nothing to the US once credits or exclusions are applied.
Income levels that usually trigger US filing requirements
For the 2025 tax year, filing thresholds are tied to the standard deduction amounts set by US law, which are:
- Single: US$15,750
- Married filing jointly: US$31,500
- Head of Household: US$23,625
- Married filing separately (foreign spouse): US$5
- Self-employed: US$400
Navigating US and German taxes at the same time
Once you live in Germany, you are usually treated as a German tax resident based on practical factors that often include:
- Where your home is
- Where you work
- Where your personal and economic life is centered
Germany taxes residents on worldwide income, just like the US. The difference lies in how that income is taxed.
You are dealing with two systems at once:
- The US Internal Revenue Service
- The German tax authority, the Finanzamt
Neither system cancels the other out. Most filing mistakes happen when people assume one country’s tax automatically replaces the other’s. It doesn’t.
German tax concepts that American expats in Germany should recognize
Here are a few concepts to keep in mind when reading German tax documents.
- Income tax (Einkommensteuer) on wages and business income
- Solidarity surcharge (Solidaritätszuschlag)
- Church tax (Kirchensteuer), if applicable
- Mandatory social security contributions
These amounts often appear on payslips and tax assessments. Some support US foreign tax credits. Some of these taxes may count toward US foreign tax credits, while others do not qualify under US rules. Knowing which is which helps avoid over- or under-claiming on your US return.
Living in Germany as a US expat? Contact us today for tax help.
Common living and work situations for American expats in Germany
Moving to Germany partway through the year
If you relocated mid-year, your tax year is split. Some expat benefits, especially the Foreign Earned Income Exclusion, apply only to the period you actually lived abroad. Timing matters.
Working remotely for a US or foreign employer
What matters is where you physically perform the work. If you do the work while living in Germany, the income is generally treated as foreign-earned for US purposes, even if your employer is based in the US.
Filing with a non-US spouse
If your spouse is not a US citizen or Green Card holder, you typically choose between:
- Filing jointly and bringing your spouse into the US tax system, or
- Filing separately and keeping their income outside US reporting
The choice affects credits, rates, and future obligations. There is no one-size-fits-all answer.
Types of income that need to be reported to the US
Living abroad does not change what the US considers taxable income. Common examples include:
- Salary and wages
- German pensions
- Self-employment income
- Dividends and interest
- Rental income
- Capital gains from investments or property
- Equity compensation (RSUs, stock options)
The key question is not where the income is paid. It’s what type of income it is and how relief applies.
The core IRS forms most US expats in Germany encounter
Forms many expats file
- Form 1040 – your main US tax return
- Form 1116 – Foreign Tax Credit
- Form 2555 – Foreign Earned Income Exclusion and housing relief
Forms tied to foreign assets or structures
- FBAR (FinCEN 114) – foreign bank accounts
- Form 8938 – FATCA asset reporting
- Form 8621 – PFIC reporting
- Forms 5471 / 8865 – foreign companies or partnerships
Not everyone files all of these. The goal is knowing which apply to you.
US tax deadlines when your home base is Germany
Living abroad gives you more time to file, but not unlimited time.
Key dates for the 2025 tax year:
- April 15, 2026: Standard deadline
- June 15, 2026: Automatic extension for expats
- October 15, 2026: Extension with Form 4868
- October 15, 2026: FBAR deadline (includes the automatic extension)
If your eligibility for the Foreign Earned Income Exclusion depends on future days abroad, Form 2350 can extend the deadline further.
German tax deadlines do not move US deadlines. Many expats use extensions to wait for German figures, which is fine when done properly.
Reporting German bank accounts and financial assets
- FBAR (FinCEN 114): You must file if the combined value of your non-US accounts exceeded US$10,000 at any point during the year.
- FATCA (Form 8938): Higher thresholds apply for people living abroad. For single filers, reporting generally starts at:
- US$200,000 at year-end, or
- US$300,000 at any point during the year
Joint accounts still count. Accounts held with a non-US spouse still count. Ignoring these forms is one of the most expensive mistakes expats make.
The US-Germany tax treaty
The United States and Germany have an income tax treaty designed to reduce conflicts between the two tax systems. The treaty helps coordinate how income is taxed across borders, but it does not exempt US citizens from US taxation.
In practice, the treaty mainly helps by:
- Defining which country has the primary right to tax certain types of income
- Limiting or reducing withholding taxes in specific situations
- Reinforcing the use of foreign tax credits to avoid paying tax twice
One important limitation is the treaty’s saving clause. In simple terms, this clause allows the US to continue taxing its citizens as if the treaty did not exist, except in a small number of defined cases.
For most Americans living in Germany, the treaty operates quietly in the background. It helps prevent double taxation and supports credit claims, but it does not replace normal US filing obligations or remove the need to submit a US tax return.
How American expats in Germany usually avoid double taxation
Double taxation means paying tax twice on the same income. Most expats avoid that by using the right tools.
Foreign Earned Income Exclusion (FEIE)
For 2025, up to US$130,000 of foreign-earned income may be excluded if you meet:
- The physical presence test, or
- The bona fide residence test
In high-tax countries like Germany, FEIE can sometimes reduce or eliminate your ability to use foreign tax credits on the same income, even when those credits would have wiped out US tax.
Foreign Tax Credit (FTC)
You report the income, then claim a credit for German income tax paid. Because German tax rates are relatively high, this often wipes out US tax on salary income.
Some expats use FEIE for part of their income and credits for the rest. This requires careful structuring.
US Credits and deductions expats can claim in Germany
- Additional Child Tax Credit: You can claim up to US$1,700 per qualifying child.
💡 This is one of the few credits that may still be refundable for expats, even when little or no US tax is owed, depending on income and filing method.
- Education credits (for eligible foreign schools)
- IRA contributions
German pensions and US taxes: what Americans need to know
German statutory pension (Gesetzliche Rentenversicherung)
This is Germany’s state pension system. Contributions are mandatory for many workers. Benefits are generally reportable on a US return. The treaty may affect where they are taxed, but reporting still applies.
Employer-sponsored pensions (betriebliche Altersversorgung)
These plans are common and tax-efficient under German law. The US does not always treat them as tax-deferred. Contributions or growth may be taxable sooner than expected.
Private pensions (Riester, Rürup, and similar plans)
These are designed for German taxpayers. From a US perspective, they often create reporting complexity with limited US tax benefits.
Self-employment and freelance taxes for American expats in Germany
For the tax year 2025, the US self-employment tax is generally 15.3%, split between Social Security and Medicare.
Germany and the US have a totalization agreement. In many cases, this allows you to pay into only one system. However, the exemption is not automatic. You usually need formal proof, such as a certificate of coverage, to show that German social security applies instead of the US self-employment tax.
Business structure also matters. A sole proprietorship, a US LLC, or a German company can all lead to different outcomes.
What happens if you fall behind on US filings
Missing filings does not automatically mean penalties, but ignoring the problem often leads to larger penalties and more complicated corrections later. Penalties can apply even when no US income tax is due, especially for missed FBAR or FATCA forms.
Catch-up options for US expats living in Germany
The IRS offers programs for expats who were unaware of their obligations, including:
- Streamlined Filing Compliance Procedures
- Delinquent FBAR submission options
These are designed for non-willful mistakes. The sooner you act, the smoother the process tends to be.
FAQs
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Do I need to register with the IRS when I move to Germany?
No formal registration is required when you move abroad. However, your US tax return should reflect your new foreign address, and any change in filing status, income sources, or foreign accounts needs to be reported through your regular filings. In practice, your tax return is how you keep the IRS updated.
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Does paying German social security automatically exempt me from US self-employment tax?
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If my employer withholds German tax correctly, can I skip estimated US payments?
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Can I change my tax strategy later if I choose the wrong one now?
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Do German tax refunds affect my US return?
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If I plan to stay in Germany permanently, does anything change for US taxes?
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What’s the biggest mistake Americans in Germany make with US taxes?
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