Expatriating as an American citizen can be an amazing experience! You’ll expose yourself to new cultures, grow your career, and gain global mobility. However, you will also have to deal with one of the most complex financial systems in the world. The USA is one of only two countries in the world to tax citizens, so no matter where you live, work or bank you will be liable to the IRS.
Taxing can be extremely strict as an expat. Missing out one form or missing out an exclusion can cause big issues with heavy penalties and interest. Below are the Top 7 mistakes to avoid when filing your Expat Taxes this year.
1. Assuming Living Overseas Means You Don’t Have to File
The most common mistake made by Americans living overseas is assuming that if they pay taxes on their host country they do not need to file taxes in the US. However, if your total worldwide income exceeds the basic minimum filing threshold for your status, you will need to file a US Federal tax return. Simply because you are living and working overseas doesn’t mean you’re exempt from filing taxes. You will need to file an annual return on your worldwide earnings.
2. Confusing the Automatic Filing Extension with Extra Time to Pay
U.S. expats get an automatic two month extension to file their Federal tax return (until June 15). But many people get confused about the difference between an extension to file and an extension to pay. If you do owe taxes to the IRS then interest will be charged on your outstanding taxes once you go past the normal April 15 deadline. To avoid any interest charges or penalties for late payment, you should try to calculate how much you will owe and pay that balance before April 15. Even if you plan on submitting your final documents in June or October.
3. Choosing FEIE Over FTC Without Calculating Both
Expats frequently rely on the Foreign Earned Income Exclusion (FEIE) via Form 2555 because it is the most well-known tax relief mechanism. FEIE allows you to exclude up to a certain threshold of foreign earned income.
However, automatically choosing FEIE over the Foreign Tax Credit (FTC) via Form 1116 can be a costly mistake:
- High-Tax Countries: If you live in a high-tax jurisdiction (like Europe or Japan), the Foreign Tax Credit often yields better results by generating tax credits that wipe out U.S. tax liabilities and can even be carried forward.
- Passive Income: FEIE only applies to earned income (wages, self-employment). It does not cover dividends, interest, rental income, or capital gains.
- Child Tax Credits: Claiming FEIE can prevent you from claiming refundable portions of the Child Tax Credit. Always model both strategies before filing.
4. Ignoring FBAR (FinCEN Form 114) and FATCA (Form 8938)
In addition to your reporting requirements on your tax return, you are required by the Bank Secrecy Act to file the Foreign Bank Account Report (FBAR) using the BSA E-Filing System, if the total value of all of your foreign bank accounts exceed $10,000 at any time during the calendar year.
In addition, you will also have reporting requirements on foreign assets (FATCA) using Form 8938 if the value of your specified foreign financial assets exceeds higher thresholds, depending on the country. If you fail to file these information returns you can be subject to penalties of over $10,000 per violation for non-willful violations. This is a penalty which can apply even if you do not owe any U.S. income tax.
5. Mismanaging Foreign Investments and Passive Foreign Investment Companies (PFICs)
Investing in your host country is logical, however many foreign mutual funds, ETFs, pension funds and holding companies will be categorised by the IRS as Passive Foreign Investment Companies (PFICs). These come with draconian tax rates and complicated annual reporting requirements in the form of Form 8621. If not properly structured, you may be liable to pay the highest marginal income tax rate plus compound interest on gains from foreign investment funds.
6. Overlooking Local Business and Self-Employment Tax Rules
Also, many digital nomads and international freelancers forget that foreign earned income exclusions only relate to income tax. If you are running your own business as a sole proprietor while overseas, you could be liable for paying 15.3% of U.S. Social Security & Medicare. Although if you’re in a country which has a bilateral Totalization Agreement with the United States, you won’t pay for double coverage. However, setting up a local company overseas can cause complications with U.S. corporate filing, such as Form 5471 if you are a Controlled Foreign Corporation.
7. Misunderstanding the Process of Renouncing US Citizenship
Overwhelmed by dual tax compliance, some expats consider renouncing US citizenship to escape the reach of the IRS permanently. However, treating citizenship renunciation purely as a shortcut to fix tax problems is a major blunder.
Renouncing US citizenship does not automatically wipe away past tax obligations. Before the U.S. Department of State allows you to relinquish your status, the IRS requires you to file Form 8854 (Initial and Annual Expatriation Statement) to prove you have been 100% tax compliant for the preceding five years.
If you fail the compliance test or have a global net worth of more than $2 million (or an average tax liability over the last 5 years equal to or above the statutory inflation adjusted thresholds) then you will be deemed a Covered Expatriate. This means you will be subject to the U.S. Exit Tax (under IRC Section 877A). You will be deemed to have sold all your global assets at market value on the day before expatriation. This could mean paying capital gains tax on global property, real estate and retirement assets.
Renunciation requires a clean tax record and strategic pre-expatriation planning to avoid devastating exit penalties.
Summary Table: Quick Avoidance Guide
| Mistake | What Happens | How to Avoid It |
| Ignoring US Filings | Accrues failure-to-file penalties. | File annually regardless of your country of residence. |
| Missing FBAR Rules | Severe civil penalties per account. | File FinCEN 114 if bank balances total >$10,000 at any point. |
| Buying Foreign ETFs | Punitive PFIC tax rates on Form 8621. | Stick to U.S.-domiciled funds or specialized expat portfolios. |
| Rushing Renunciation | Exit Tax exposure & “Covered Expatriate” status. | Ensure 5 years of full tax compliance before renouncing US citizenship. |
Final Thoughts
Taxing an Expat can be a very complex process. Ensuring that you understand the domestic laws in the USA and the local laws of your host country will help. Making sure that you have all your foreign financial statements together early on, ensuring that you are applying the correct exclusions or credits and getting everything in order to ensure complete compliance will make tax time run smoothly. This will help protect your international financial future.
