Never Filed US Taxes While Living Abroad?

You found out — from a bank letter, a colleague, a forum thread — that US citizens have to file a tax return no matter where they live, and you never have. The first thing worth saying is that this is one of the most common situations in expat tax, and one of the most fixable. The second is that the fear is usually attached to the wrong number.

The problem is finite, and smaller than the number of years

Being behind since 2011 and being behind since 2019 lead to the same package under the Streamlined Foreign Offshore Procedures: the most recent 3 years of tax returns and the most recent 6 years of FBARs, with a certification of non-wilful conduct on Form 14653. You do not reconstruct fifteen years. That bound is the single most useful fact on this page.

You probably owe less tax than you think — and that is not the point

The United States taxes its citizens on worldwide income, but it also gives credit for the tax you already paid where you live. Between the Foreign Tax Credit and the Foreign Earned Income Exclusion, an ordinary salaried expat in a normal-tax country frequently lands at or near zero US tax for each of the catch-up years.

That is genuinely good news for the tax line, and it is why the 5% of the unpaid tax per month, capped at 25% failure-to-file addition often has nothing to attach to. But it is not the whole exposure: the information returns carry their own penalties, and they do not care whether you owed tax. A missing FBAR, a missing Form 8938, a missing Form 8621 for a foreign fund — each is priced separately from the tax.

The part nobody mentions: the years never close

Ordinarily the IRS has three years from filing to assess additional tax. Under IRC §6501(c)(3), that clock never starts on a return that was never filed — so 2013 is as open today as last year. A related rule, §6501(c)(8), keeps the period open on a filed return until a required international information return is supplied. This is the mechanism behind the standard advice that unfiled years do not age out on their own; filing is what starts the clock.

What is actually likely to happen to you

Criminal exposure is about wilful conduct — deliberately concealing income or accounts — and it is not the ordinary shape of an expat who did not know the rule existed. For the far more common case, the practical consequences are the ones above: information-return penalties, an open limitations period, and a bank abroad that increasingly wants a US tax identification number under FATCA before it will keep your account open.

The routes back, and which one fits

There is a fifth thing people do, and it is worth naming so you can avoid it: quietly filing the back years as if nothing happened, without using a programme. It is sometimes called a quiet or silent disclosure. It forfeits the penalty terms the Streamlined programme offers while doing nothing to obtain the protections of it, and the IRS has been explicit that it is not an approved route.

The multiplier: foreign funds

The single largest driver of cost and complexity in a catch-up is not the number of years — it is whether you held non-US funds or ETFs. Those are generally PFICs, and a PFIC generally needs its own Form 8621 for each year in the window. Three years of returns holding six European ETFs is eighteen forms, each with a §1291 allocation across your holding period. Firms price this per form, which is where an otherwise-ordinary catch-up becomes expensive.

How to come forward

1. Establish what is actually missing. List the years with no return and the years with no FBAR. They are frequently not the same set, and the answer decides which programme is even available.
2. Screen non-wilfulness and the non-residency test honestly. Streamlined requires that the failures were non-wilful, and generally that you were at least 330 days abroad in at least one of the last three years. If there is a real question about willfulness, speak to an attorney before filing anything.
3. Fix the window. Identify the three return years and six FBAR years measured from the due dates that have already passed — not from today's date, and not from when you left the US.
4. Gather income and account records for those years, including year-end and peak balances for every foreign account and the local tax actually paid, which is what supports the Foreign Tax Credit.
5. Classify every investment holding. Each non-US fund is a candidate PFIC and drives its own Form 8621 per year; identifying them early is what makes the scope of the work knowable rather than a surprise.
6. Prepare the returns, the FBARs, and the Form 14653 narrative together. The certification has to be consistent with the returns it accompanies, and it is signed under penalties of perjury.

Where Atamatax fits — and where it does not

Atamatax is software. It screens eligibility questions, organises the years, classifies your holdings, computes the PFIC and foreign tax credit figures, and generates a draft package of returns and worksheets with supported official IRS PDFs filled in. It does not determine whether your conduct was wilful, does not write or sign the Form 14653 narrative, does not transmit a Streamlined submission, and does not represent you before the IRS. Those are judgments and services that belong to a qualified professional, and any page that tells you otherwise is selling you something.