Investing as a US person: what should you watch out for?

Linda Mabelis

5 min
Published on: 28-03-2026 Last modified on: 28-03-2026

Investing can become more complicated when you also have U.S. tax obligations. Certain investments or funds that are perfectly normal outside the United States can create unexpected tax consequences in America.

That makes this an especially important topic for business owners and higher-net-worth individuals who want to build wealth, invest for the future, or structure their finances internationally. What may look like a standard investment in your country of residence is not automatically a sensible choice from a U.S. tax perspective.

That is exactly why it is important to understand the risks before you invest.

Why investing is different for a US person

The United States is one of the very few countries that continues to tax its citizens and many green card holders even when they live abroad. This means that as a U.S. person, you often have to consider not only the rules of your country of residence, but also how the United States treats your investments, accounts, and financial structures.

For many people, that comes as a surprise. You may have lived in Europe for years, work with a local bank or wealth manager, and assume that your investment choices are entirely local. But from the IRS perspective, the tax treatment can be very different.

This is especially true for foreign funds and passive investments.

What is a PFIC?

One of the best-known traps for U.S. persons abroad is the PFIC: a Passive Foreign Investment Company.

In plain English, this generally refers to a foreign passive investment. That can include certain mutual funds, ETFs, pooled investment products, or similar vehicles outside the United States.

This is where many Americans abroad run into trouble. A fund that seems ordinary, widely available, or even conservative in your local market may be treated very unfavourably under U.S. tax rules. PFICs are known for triggering extra reporting requirements and potentially harsh tax treatment that many people do not anticipate.

In practice, that means a simple rule of thumb often applies: not every investment product offered in your country of residence is suitable if you are also a U.S. person.

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The problem: you may not know what you actually hold

One of the biggest risks is that many investors do not fully understand what sits inside their portfolio. This is especially true when investments are held through a bank, a standard investment account, or a discretionary wealth manager.

You may see the name of a fund or a packaged investment solution, but not immediately know how that product is classified for U.S. tax purposes. As a result, some people end up holding investments that create problems in their U.S. tax filing without realising it.

For business owners and affluent individuals, this matters even more. The larger the portfolio or the more international the structure, the more important it becomes to ensure that investments are not only suitable locally, but also workable from a U.S. compliance and reporting perspective.

Why some banks and financial providers are cautious

Many banks and financial institutions outside the United States are cautious when a client also has U.S. tax status. That is because U.S. persons create additional compliance questions, and certain products may not be appropriate for someone who also has to report to the IRS.

As a result, some clients find that investing becomes more difficult, that certain products are unavailable, or that their case is treated separately. That can be frustrating, but it also reflects how complex the combination of local investing and U.S. tax law can be in practice. 

What if you already hold problematic investments?

In that case, the most important thing is not to start changing things too quickly without first understanding the full picture. The best starting point is to have your portfolio reviewed properly so you know what you hold, how it is treated in the United States, and what the sensible next steps are.

Sometimes an existing portfolio turns out to contain products that are tax-inefficient or difficult for a U.S. person. When that happens, specialist guidance can help you assess what alternatives exist and how to restructure in a careful way.

Rushed or partial corrections are rarely the best answer. In international tax matters, coordination matters.

Are there also opportunities for U.S. persons abroad?

Yes. Being a U.S. person does not only create restrictions. In some cases, it may also open up planning opportunities that are specifically linked to your U.S. tax position.

For example, long-term retirement and wealth planning may involve U.S. vehicles such as an IRA or Roth IRA. In the right situation, these can be valuable tools. But they should never be looked at in isolation.

A solution that appears attractive on the U.S. side still has to be reviewed in the country where you live. A planning strategy only works well when both sides are taken into account.

For business owners and affluent individuals, forward planning matters even more

If you are building wealth, running a company, or expecting major financial decisions in the future, it is wise to look at investing as part of your wider international tax picture.

That is especially true if you:

  • are building private wealth alongside your business

  • invest through a holding company or international structure

  • work with private banking or wealth management

  • are planning internationally for retirement

  • may sell a business, relocate, or restructure in the future

In these situations, it is not enough for an investment to look attractive on paper. It also needs to fit sustainably within your overall tax position as a U.S. person.

Specialist advice often makes the difference

Investing as a U.S. person requires a mix of tax awareness and product knowledge. That is exactly why general investment advice is often not enough.

A specialist who understands the position of Americans abroad can help identify where the risks are, which products may be problematic, and which alternatives may be more suitable. That applies not only to very large portfolios, but also to people who want clarity early so they can avoid expensive corrections later.

The key message: understand first, invest second

The most important message is simple: investing as a U.S. person requires extra care. What looks like a standard solution for other investors may create tax disadvantages or additional reporting obligations for you.

That is why it is usually better to review your options before investing, rather than trying to fix problems after the fact.

Free and no-obligation information

Are you a U.S. person and do you want to better understand what to watch out for when investing, building wealth, or planning for retirement? Americans Overseas can connect you, free of charge and without obligation, with a specialist from its network who understands the combination of international financial planning and U.S. tax obligations. 

That way, you can get clarity first and make decisions with a better understanding of the risks and opportunities.

Contact us for more information

Written by Linda Mabelis

General Manager & Partner

Linda Mabelis is the General Manager and Owner at Americans Overseas, dedicated to helping individuals find the right tax attorney for their unique situations. With extensive work experience and a deep understanding of the complexities facing Americans Overseas, Linda is committed to providing personalized and effective solutions.

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