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Dual Citizenship, Earning €100,000, and Starting a Business in the US: What to Expect


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Obtaining dual citizenship is a significant life decision that can open doors to various opportunities, such as the freedom to live, work, and travel between two countries with fewer restrictions. This blog post will explore the process of having dual citizenship in the United States and a European country and what to expect when it comes to earning money abroad and returning to the US to start a small business. Specifically, we'll address the questions surrounding the proof of earnings and tax payment in Europe.

Dual Citizenship in the US and a European Country

Before delving into the process of earning €100,000 in Europe and returning to the US, let's first briefly touch upon dual citizenship. Dual citizenship is the status of an individual being a citizen of two countries simultaneously. The rules and regulations regarding dual citizenship can vary from one country to another, so it's crucial to understand the specific requirements and implications of holding dual citizenship in the US and the European country in question.

Earning €100,000 in Europe

Earning a substantial amount of money in a foreign country can be an exciting endeavor. However, it's essential to be aware of the legal and tax implications associated with earning income in Europe as a dual citizen of the US and another country. Here are a few key points to consider:

  1. Tax Obligations: When you earn income in a foreign country, you typically become subject to that country's tax laws. Depending on the specific country, you may be required to pay income tax on your earnings. It's crucial to understand the tax regulations in the European country where you plan to earn money. Seeking guidance from a tax professional or consulting with the tax authorities in that country can help you comply with the tax requirements.
  2. Documentation: It's important to keep thorough records of your earnings, as well as any taxes paid in the European country. This documentation may include pay stubs, employment contracts, bank statements, and tax return filings. These records can be essential when you return to the US and need to prove the source of your funds.

Returning to the US and Starting a Small Business

After earning €100,000 in Europe, you plan to return to the US to use that money to start a small business. Here's what you can expect when it comes to proving how you earned the money and your tax compliance:

  1. Proof of Earnings: US authorities, particularly the Internal Revenue Service (IRS), may request information about the source of the funds you bring back to the US. It's advisable to maintain thorough documentation of your earnings, including proof of employment, payment records, and tax returns filed in the European country. Transparency and a clear paper trail can help establish the legitimacy of your funds.
  2. Tax Reporting: In the US, you may be required to report your foreign income, even if you are a dual citizen. The United States has a worldwide income tax system, which means that US citizens and residents are generally subject to taxation on their global income. It's important to consult with a tax professional or attorney who is well-versed in international tax matters to ensure compliance with US tax laws.
  3. Avoiding Double Taxation: Many countries have tax treaties in place to prevent double taxation of the same income. These treaties may allow you to receive a tax credit in the US for taxes paid in the European country. Understanding these tax treaties and making use of available credits can help minimize your tax liability.


Earning €100,000 in Europe and returning to the US to start a small business is an exciting prospect for anyone with dual citizenship in the US and another country. While the process may seem complex, it can be navigated smoothly with careful planning, proper documentation, and compliance with tax laws in both countries.

It is advisable to consult with legal and tax professionals who specialize in international matters to ensure that you meet all legal requirements and obligations. Being well-prepared and knowledgeable about the financial aspects of this journey will set you on the path to realizing your entrepreneurial dreams in the United States.