Recordkeeping Requirements

Why records matter

The Bank Secrecy Act imposes two separate duties: to report, and to keep records. The recordkeeping duty sits at 31 C.F.R. § 1010.420 and applies to anyone required to file an FBAR. It is independent of the filing obligation — you can file a perfect report and still fall short by failing to retain the underlying records.

Records matter practically for three reasons:

• Examination. If the IRS asks about your foreign accounts, the records are what turn an assertion into a demonstrated fact.
• Reasonable cause. The defence against a non-willful penalty rests on showing that you acted reasonably. Contemporaneous records are the evidence of that; reconstructions years later are far weaker. See reasonable cause.
• Next year’s filing. A clean record from last year makes this year’s report a half-hour task rather than a scramble.

What you must keep

For each reportable account, the regulations require records showing:

In practice the documents that satisfy these requirements are the account statements themselves, together with your own working note of the maximum value and the exchange rate used. Keep the working note — it is what allows you, or an adviser, to reconstruct your reasoning years later.

What we suggest keeping beyond the minimum

• The filed Form 114 itself, saved as a PDF at the moment of filing.
• The BSA E-Filing confirmation email with the submission identifier.
• All periodic statements for the year, not merely the one showing the peak.
• A note of the exchange rate source and date used for each currency.
• Correspondence with institutions, particularly where you had difficulty obtaining information — this is precisely the evidence a reasonable cause argument needs.
• Signed Form 114a where anyone filed on your behalf.
• Account opening and closing documents, which establish the period the account existed.

How long to keep it

Records must be retained for five years from the due date of the report. Because the due date is 15 April following the reported year, the five-year clock for a 2025 calendar-year FBAR runs from 15 April 2026.

Two refinements worth noting:

• The retention period runs from the due date, not the filing date, so filing early does not shorten it.
• The civil penalty limitation period is six years from the due date — longer than the five-year retention requirement. Many advisers therefore recommend keeping FBAR records for at least six or seven years so that the evidence outlives the exposure.

Form 114a and third-party records

Where someone files on your behalf — a spouse or a paid preparer — Form 114a records that authorisation. It is not submitted to FinCEN. Both the account owner and the person filing keep a signed copy, and both must be able to produce it on request. The same five-year retention period applies, and the same seven-year habit is sensible.

If you use a preparer, do not assume they hold your only copy. Ask for the signed 114a, the filed form and the confirmation, and store them yourself. Preparers change firms, retire and lose files.

A practical filing-season system

The following takes about twenty minutes a year and removes nearly all of the pain.

1. One folder per year

   Create a folder named for the reporting year, for example FBAR-2025. Everything for that year goes in it and nothing else does.

2. Download statements as they arrive

   Do not rely on being able to retrieve statements later. Institutions purge online history, close portals when accounts close, and change systems. A closed account is the hardest thing to document retrospectively.

3. Keep a one-page summary sheet

   A single table listing each account, the institution, the account number, the peak balance in local currency, the date of the peak, the rate used and the converted figure. This is the document you will actually use when filing, and the one that answers questions years later.

4. Record the exchange rate with its source

   Note the Treasury Reporting Rate of Exchange used, for the last day of the reported year, alongside each conversion.

5. File the report, then save the proof in the same folder

   The PDF of the submitted form and the confirmation email belong with the statements they were built from.

6. Diarise next year

   A calendar entry in January and a second in early April. Most late FBARs are not acts of concealment — they are simply forgotten.

Requesting copies of past filings

If you need to establish what you filed in a prior year and no longer hold the records, FinCEN can verify that a report was filed. You should expect to supply identifying details of the filer and the year in question, and to wait: this is a manual process, not a self-service lookup. Nothing about it is as convenient as having kept the confirmation email.

A verification of filing is also a useful first step where you are unsure whether prior-year reports were submitted at all — establishing what is actually on file is a sensible precursor to any correction exercise. See late, delinquent and amended FBARs.

Where to go next

• Penalties — including the role records play in a reasonable cause defence.
• Late and amended filings — correcting the record for past years.
• Deadlines — the due date from which the retention period runs.
• Official sources — the regulations and instructions themselves.