Senate Finance Committee's FBAR Reform Bill: What Got Cut, What Got Added

On July 28, 2026, the Senate Finance Committee released a Chairman's Mark that trims back much of the relief Americans abroad had been expecting from FBAR and Form 3520 reform. Two days later, on July 30, the committee approved the resulting bill, S. 3931, by a vote of 26-1. If you've been tracking this legislation hoping for a simpler filing season, the short version is this: some relief survived, some didn't, and two new government studies now stand between you and any real simplification.

What the February Draft Promised (and What Changed)

Back in February 2026, an earlier discussion draft of this bill included a section titled 'American Citizens Abroad' with five separate provisions aimed at easing compliance for people living outside the US. By the time the committee marked up the bill in late July, only three of those five survived. This isn't unusual in the legislative process — discussion drafts are opening positions, and markups are where trade-offs happen. But it's worth understanding exactly what got traded away, because two of the cuts would have made a real, practical difference for anyone filing from Switzerland.

Two Provisions Got Cut

• Section 201 — would have allowed you to submit your FBAR (the annual report of foreign bank and financial accounts, filed separately with FinCEN, not the IRS) alongside your regular tax return instead of through a separate system. This was removed entirely from the final markup.
• Section 204 — would have raised the threshold for the simplified foreign tax credit (a credit that offsets US tax with tax already paid to a foreign government, like Switzerland) from $300/$600 for single/joint filers to $1,000/$2,000, letting more people skip the more complex Form 1116. This was also removed.

The practical effect: FBAR remains a standalone filing obligation, separate from your Form 1040, with its own deadline and its own portal. And the foreign tax credit simplification threshold stays where it's been for years — meaning many taxpayers will still need the fuller Form 1116 rather than the simplified version. Neither of these was a dramatic overhaul, but both would have removed friction from an already crowded filing season.

What Survived: Three Provisions for Americans Abroad

1. An FBAR and Code simplification study — Treasury must formally study and report on combining FBAR with existing tax-return reporting (Form 8938) to reduce duplication.
2. A GAO burden study — the Government Accountability Office must examine the compliance burden Americans abroad actually face, including foreign retirement accounts, exchange-rate complications, and IRS communication gaps.
3. Extended time for math-error assessment abatement requests — taxpayers living outside the US get more time to formally contest certain IRS math-error adjustments.

The FBAR and Code Simplification Study

If you've ever filed both an FBAR and a Form 8938, you already know the frustration this study is meant to address: you're often reporting overlapping information — the same Swiss bank or brokerage account — to two different agencies, on two different forms, with two different thresholds and two different deadlines. The bill directs Treasury to study whether these can be combined into one system. That's a meaningful acknowledgment of a real problem, but it's a study, not a law change. There's no timeline attached for when — or whether — combined reporting actually happens. In the meantime, the current dual-filing rules stay exactly as they are, and the details around deadlines and thresholds matter more than ever if you're new to this system — our guide to FBAR filing for Americans in Switzerland walks through what's currently required.

The GAO Study on Compliance Burdens

The second study is broader. The GAO has been tasked with examining the actual burden Americans abroad carry — not just FBAR, but the full picture: how foreign retirement accounts (think Swiss pillar 2 pension funds or pillar 3a savings) get treated, how currency conversion requirements complicate otherwise straightforward returns, and where IRS communication with people living abroad breaks down. This is the kind of study that, done well, could eventually inform real legislative fixes. Done poorly, it becomes a shelf document. Either way, it doesn't change anything about your filing obligations for this year or next.

More Time to Contest Math-Error Penalties

A 'math-error assessment' is a special IRS process that lets the agency adjust your return for certain mathematical or clerical errors without going through the normal deficiency procedures that usually apply before the IRS can bill you more tax. The catch has always been timing: taxpayers get a narrow window to formally request that the IRS abate (undo) a math-error adjustment before it becomes final. The new bill extends that window specifically for taxpayers who live outside the United States — a recognition that mail delays, time zones, and unfamiliarity with a fast-moving domestic deadline put people abroad at a real disadvantage.

The Fairness in Foreign Filing Act: A New Piece Added to the Bill

While two provisions were cut, the markup also added something new: the Fairness in Foreign Filing Act. This gives Treasury the authority to set filing deadlines for Forms 3520 and 3520-A — the forms used to report gifts and inheritances from foreign persons, and transactions with foreign trusts — administratively, rather than having those deadlines fixed permanently by statute. That matters because Form 3520 has tripped up plenty of people in Switzerland who never thought of themselves as having a 'foreign trust' relationship, particularly around certain insurance-wrapped pension products, and rigid statutory deadlines have made small administrative slips disproportionately costly.

The same addition also reverses a 2023 Tax Court holding (Farhy v. Commissioner) that had limited the IRS's authority to assess certain international information-return penalties without going through a formal deficiency process first. The new provision explicitly restores that assessment authority — but pairs it with a pre-assessment administrative review step, so taxpayers get a chance to be heard before a penalty is locked in rather than only after. It's a trade: the IRS gets clearer enforcement authority, and taxpayers get a formal review checkpoint that didn't previously exist for this category of penalty. For context on how aggressively the IRS has been leaning into automated enforcement lately, see how the IRS uses AI to cross-reference FATCA and FBAR data.

Why This Timing Matters If You're in Switzerland

This markup lands only weeks after the IRS made its own move in the opposite direction: in early July 2026, the agency ended the penalty-free path that had let some late FBAR filers come into compliance without facing penalties. We covered that shift in detail in IRS quietly ends penalty-free path for late FBAR filers. Taken together, the picture for 2026 is fairly clear: enforcement is getting more assertive and more automated, while the structural relief that might simplify your actual filing obligations remains stuck in the study phase. That's not a reason for alarm — it's a reason to treat current deadlines and forms as fully in force, because nothing about how you file has actually changed yet.

What to Do While the Studies Are Pending

• Keep filing FBAR and Form 8938 on their existing separate schedules — don't wait for a combined system that doesn't exist yet.
• If you hold a Swiss pillar 3a policy or any insurance-wrapped savings product, understand whether it could trigger Form 3520/3520-A obligations rather than assuming it's a simple bank account.
• If you ever receive a math-error notice from the IRS while living abroad, note the extended response window and don't let it lapse.
• Treat the current foreign tax credit threshold and Form 1116 requirements as unchanged — Section 204's proposed increase did not survive this markup.

The Bottom Line

This bill is a modest, incremental step — real in places (more time to contest math-error penalties, a formal review step before certain international penalties are assessed), but modest overall (no combined FBAR filing, no wider foreign tax credit threshold, and two studies whose outcomes are still years away, if they lead anywhere at all). Nothing here simplifies what you actually have to do this filing season. Sorting out where a Swiss pension product, an insurance wrapper, or a foreign trust question fits into US reporting rules is exactly the kind of cross-border puzzle where having someone who understands both systems — Swiss and American — under one roof makes the difference between guessing and knowing.