Behind on US Tax Returns Abroad: Your Options, Honestly Compared

First, the reassuring part

Most expats who are behind on US filings are behind for the least sinister reason imaginable: nobody told them the US taxes its citizens abroad. The IRS knows this, and its published catch-up routes are built around exactly this person. Better still, because UK tax rates generally exceed US rates, catching up often produces little or no US tax — the cost is mostly in preparation, not liability.

But "it will probably be fine" is not a plan. The routes back differ in protection, cost and eligibility, and some choices close others off. Here is the ladder, from riskiest to most protective.

Option 1: quietly file forward

The tempting shortcut is to start filing from the current year and let the past lie. Three problems:

• A first return from someone with years of foreign life behind them is itself a signal, and FATCA bank data means the IRS often already holds account information for the silent years.
• The statute of limitations never starts running on an unfiled return, so those years stay open indefinitely.
• So-called quiet disclosures — filing old returns or FBARs cold, with no programme and no explanation — sit outside every penalty-protection framework, and can be treated less sympathetically than a proper submission.

Filing forward is occasionally defensible for genuinely trivial histories, but it is a judgement call to make with advice, not a default.

Option 2: the streamlined procedures

For non-wilful taxpayers abroad, the Streamlined Foreign Offshore Procedures are usually the answer: three years of returns, six years of FBARs, a Form 14653 certification telling your story, and the usual penalties waived. The scope is defined, the terms are published, and the outcome is predictable. Its one hard limit: it must be started before the IRS opens an examination — eligibility can vanish overnight and does not come back.

Option 3: delinquent FBAR submission procedures

If your tax returns were filed and correct — all income reported, all tax paid — and only FBARs are missing, the delinquent FBAR submission procedures fit better. You file the late FBARs electronically with a statement explaining the delay, and the IRS's stated position is that no penalty applies where income was properly reported and you are not already under examination. No returns to redo, no certification package — but the "returns were clean" condition is strict, and an unreported £30 of bank interest can complicate it.

Option 4: reasonable cause

Penalties — for late returns, late payment and many information forms — can be removed where you show reasonable cause: facts demonstrating you exercised ordinary care but could not comply. Serious illness, disasters, reliance on professional advice. It is argued case by case, succeeds on evidence rather than sympathy, and offers no advance certainty. Reasonable cause is the right tool for specific, documentable misfortune, and a poor substitute for the streamlined route where both are available.

Choosing between the routes

In practice the decision tree is shorter than the menu suggests. Returns and FBARs both missing or wrong, conduct innocent: streamlined, almost always. Returns genuinely clean, FBARs alone missing: delinquent FBAR procedures. Facts unusual and well-documented — illness, disaster, demonstrably bad professional advice: reasonable cause has a role, sometimes alongside the other routes. Nothing missing but trivial amounts across a year or two: occasionally, filing forward with advice. What should never drive the choice is which option involves the least paperwork this month — the routes differ most in what they protect you from later.

The wilfulness line

Every non-wilful route depends on the same word, so be honest with yourself about it. Non-wilful covers not knowing, misunderstanding, or negligent drift. Wilful covers knowing about an obligation and choosing to ignore it — and courts have extended it to reckless indifference, such as deliberately avoiding finding out. Wilful FBAR penalties can reach half the account balance per year, and wilful cases can turn criminal.

If your facts have wilful colouring — old advice you ignored, accounts you kept quiet deliberately — do not sign a non-wilfulness certification and hope. That is the point at which you need a US tax attorney, with privileged advice, before any submission is made. For everyone else, which is most people, the honest routes are open and they work.