Why do foreign banks refuse American customers?

Because of FATCA. The law requires foreign financial institutions to identify and report US-person accounts to the IRS or face a 30% withholding tax on their own US-source income. Many banks decide a few American retail clients are not worth that compliance cost and liability, so they lawfully decline or offboard them. No law forces a foreign bank to serve an American, and none forbids it either. It is a commercial choice.

Is it legal for a bank to close my account for being American?

Generally yes. A foreign bank is not obliged to open or keep an account for a US person, and closing one to avoid FATCA reporting risk is lawful in most jurisdictions. It usually is not personal or a sign you did anything wrong. It is the institution managing the cost and penalty exposure that US law attaches to American accounts.

What is an accidental American and why does the bank want my SSN?

An accidental American is someone who holds US citizenship by birth or parentage but has little or no actual connection to the country, often people who left as infants. FATCA still treats them as US persons, so banks must collect a US taxpayer identification number and can restrict the account if it is not provided. That can mean being pressed to obtain an SSN, or to consider renunciation, for a country you have never really lived in.

Can I keep using my US brokerage account after moving abroad?

Often not without changes. Many US brokerages restrict or close accounts once you register a foreign residential address, because they are not licensed to serve residents of that country. Keeping your old US address to hide the move usually breaches the account agreement and can trigger the very closure you were avoiding. So the fix is a genuine, compliant US financial base rather than a fiction.

Why can't I just buy local index funds as an American abroad?

US tax law taxes non-US pooled funds, most local mutual funds and ETFs, punitively for US persons under the PFIC rules, which is why expat-aware advisers steer Americans away from the local product shelf. The result is a squeeze: locked out of efficient local funds by PFIC, and sometimes out of US-based investing by a foreign address. The workable route is investing through a FATCA- and PFIC-compliant US base.

Why your bank hangs up when you say you're American

You have found the flat, learned enough of the language to be polite, and walked into a local bank to open the account that makes a life abroad possible. The clerk is warm right up to one question on the form: are you a US person? You tick yes, and the temperature drops. A manager appears. The account, it turns out, is "not something we can offer."

This happens to Americans everywhere, and they take it personally. It is not personal. It is not even really about you. It is about a US law that made you expensive to serve.

What FATCA actually did to foreign banks

The Foreign Account Tax Compliance Act became law in 2010 and bit from 2014. Its mechanism is quietly aggressive: it requires foreign financial institutions to identify their US-person account holders and report them to the IRS — or face a 30% withholding tax on their own US-source income. Not the customer's income. The bank's.

Read that again, because it is the whole story. A bank in Lisbon or Bangkok that gets American reporting wrong does not risk annoying a customer; it risks a punitive US tax on its entire American investment book. Washington effectively deputised every bank on the planet as an unpaid IRS reporting agent and attached a serious penalty to sloppiness.

The rational response to a costly customer is "no"

Faced with that, a great many institutions did the maths and decided that a handful of American retail clients were not worth the compliance overhead and the liability. So they decline to open accounts for US persons, or they quietly offboard the ones they have. This is lawful. No law entitles a foreign bank to refuse an American — and equally, no law compels it to accept one. The bank is not breaking a rule by turning you away. It is avoiding a cost.

That is why the rejection feels arbitrary: two banks on the same street will treat you completely differently, because each made its own commercial call about whether Americans are worth the paperwork.

The paperwork that follows you in

If a bank does take you, expect the machinery. It must collect a self-certification of your US status and your US taxpayer identification number, and if you decline to provide it the account can be restricted or closed. For the so-called accidental Americans — people who were born in the US but left as infants, or inherited citizenship from a parent — this is a nasty surprise: a bank demanding an SSN they have never had, for a country they have never lived in, on pain of losing their account.

Investing is where it gets genuinely painful

Day-to-day banking is the visible problem. The one that costs real money is investing. Under US PFIC rules, ordinary foreign mutual funds and ETFs — the cheap, sensible way locals build wealth — are punitively taxed for US persons, so expat-aware advisers steer you away from the entire local product shelf. Meanwhile your US brokerage may freeze or close your account the moment you update it to a foreign address, because it is not licensed to serve residents of your new country. Americans abroad routinely get squeezed from both ends: locked out of local funds and evicted from home-country ones.

The trap door: keeping a US address

The obvious workaround — keep your old US address on everything and say nothing — is a trap. Misrepresenting your residence typically breaches the account agreement and can itself trigger the closure you were trying to avoid, and it tangles your tax residency in exactly the way you do not want. The lie is more fragile than the problem.

What actually works

There is no magic bank that makes FATCA disappear, but there is a workable posture:

The wall	Why it is there	The practical move
Local bank refuses you	FATCA reporting cost and 30% withholding risk	Target FATCA-tolerant, expat-friendly institutions; expect to shop around
Local funds are off-limits	PFIC punitive taxation	Invest through a compliant US base, not the local product shelf
US brokerage closes on a foreign address	Licensing, not spite	Keep a genuine US financial base and address of record you are entitled to use
Bank demands an SSN you lack	Accidental-American status	Get advice before "fixing" citizenship — renunciation is a separate, heavy decision

The verdict

Stop reading the rejection as a judgement on you and start reading it as a fact about the system. FATCA made your passport a compliance liability for every bank outside the United States, and many of them rationally decided the cheapest way to manage that liability is to not have you as a customer. Nothing you say at the counter changes that calculation.

So plan around it before you fly, not after your account is frozen. Line up an American who will bank the awkward US person you are — the FATCA-fluent institutions exist — keep a legitimate US financial base rather than pretending you left nothing behind, and never solve a banking headache by lying about where you live. The wall is real, it is not coming down, and the only winning move is to know the door in it before you need to walk through.