The FBAR Deadline: April 15, the Automatic October Extension, and What Happens After

For years the FBAR was due June 30 and there was no extension. Miss it and you were late, period. That changed with the Surface Transportation and Veterans Health Care Choice Improvement Act of 2015, Public Law 114-41, which moved the due date to April 15 and authorized a maximum six-month extension.

FinCEN implemented that by granting every filer an automatic extension. Its filing instructions state that filers who fail to meet the April 15 due date receive an automatic extension to October 15 each year. The IRS says the same thing: no extension request is needed.

So the real-world FBAR deadline is October 15. Here is what you need to know about it, and about what happens if you blow through it.

How the deadline works

The FBAR reports accounts for a calendar year. The report for calendar year 2025 was due April 15, 2026, with the automatic extension to October 15, 2026. The report for calendar year 2026 is due April 15, 2027, with the automatic extension to October 15, 2027.

You do not file Form 4868 for the FBAR. You do not check a box. The extension simply applies. And the FBAR extension is independent of your income tax return. If you live abroad and use the automatic June 15 extension for your tax return, that does not change the FBAR timeline, and extending your tax return to October 15 does not extend anything for the FBAR beyond what FinCEN already grants.

The report is filed electronically through FinCEN's BSA E-Filing System. Individuals do not need to register for an account to file. You can file it yourself, or have a preparer file it for you with a signed Form 114a, Record of Authorization to Electronically File FBARs. The 114a stays in your records. You do not send it to FinCEN.

What counts as late

FinCEN's instructions define a late filing as one filed after October 15 of the year following the reporting year. If you file a late FBAR through the BSA E-Filing System, the form asks you to pick a reason from a drop-down list. If none of the listed reasons fits, you select "other" and type an explanation.

That explanation box matters more than people think. It is a written statement, submitted to the federal government, about why you did not comply. It can help you, or it can be Exhibit A. Write it like it will be read by an IRS examiner, because it might be.

If a filing waiver from FinCEN previously applied to you, the instructions tell you to choose "other" and identify the waiver by its notice number.

Amending an FBAR

Mistakes happen: a missed account, a wrong maximum value, a transposed account number. FinCEN's instructions say that to amend an electronically filed FBAR, you file a new, complete FBAR and select "Amendment" as the submission type. You will need the Prior Report BSA Identifier, which FinCEN sends by email or secure message when you file. If you cannot find it, the instructions say to enter fourteen zeros in that field.

An amended FBAR is a complete replacement, not a patch. Every account goes on it, not just the one you are fixing.

Why the deadline carries so much weight

The FBAR penalty statute is 31 U.S.C. 5321(a)(5). For a non-willful violation, the statutory maximum is $10,000. For a willful violation, the maximum rises to the greater of $100,000 or 50 percent of the balance in the account at the time of the violation. Both figures are adjusted for inflation. Under 31 CFR 1010.821, for penalties assessed on or after January 17, 2025, the adjusted maximums are $16,536 for a non-willful violation and $165,353 for the willful figure.

There is a reasonable cause exception, but only for non-willful violations, and only if the balance in the account was properly reported. That last condition is why getting a late FBAR filed correctly matters so much.

The Supreme Court has also settled that the non-willful penalty applies per report, not per account. See the Bittner guide for what that means for you.

How the IRS treats the October 15 date

The Internal Revenue Manual explains how examiners use these dates. Under IRM 4.26.16.5.2, for calendar years 2016 and later, the violation date for a reporting violation is the end of the day on April 15 of the following year, if a complete and accurate FBAR is not filed by October 15. In other words, the extension protects you only if you actually file by October 15. Miss it and the violation is treated as occurring back on April 15.

That date matters for the statute of limitations, too. IRM 4.26.17.3.1.1 tells examiners to treat April 15 as the date the six-year assessment period begins to run for FBARs due for calendar year 2016 and later. The same section notes that when the April or October due date falls on a Saturday, Sunday or legal holiday, the due date moves to the next business day.

What the IRS says about late FBARs

Here is the part most people miss. The IRS has published its own internal rule for delinquent FBARs. IRM 4.26.16.3.11 says delinquent FBARs should be filed on the current electronic form, using the instructions for the year being reported to decide whether a filing requirement existed. The first page should explain why the FBAR was late, with a reason selected from the drop-down box. Choosing "Other" opens a text box of up to 750 characters.

The same section states that a penalty will not be asserted for an account if the IRS determines that the failure to report it on a timely FBAR was not willful, was due to reasonable cause, and the account was properly reported on the delinquent FBAR.

Seven hundred fifty characters is about four sentences. That is not much room to tell your story, which is why the words you choose deserve real thought. Facts, not adjectives. When you learned about the requirement, what you did about it, and that all income from the accounts was reported, if it was.

Records you should keep

The IRS says you generally must keep FBAR records for five years from the due date of the FBAR. For each account, that means the name maintained on the account, the account number, the name and address of the foreign institution, the type of account and the maximum value during the year.

If you are abroad, keep digital copies of year-end statements in one place. When a foreign bank closes an account or merges into another bank, old statements can be hard to get later.

Common deadline mistakes

• Assuming your preparer filed it. Many preparers do, many do not. The FBAR is separate from your return. Check your BSA E-Filing confirmation or ask for a copy.
• Filing only the accounts over $10,000. Once the aggregate exceeds the threshold, every foreign account goes on the report.
• Waiting until you have perfect numbers. The instructions allow reasonable approximations of the maximum value and let you rely on periodic statements that fairly reflect it. If you truly cannot determine a value for an account, the form has an "amount unknown" box for filers with fewer than 25 accounts.
• Filing late with no strategy. If several years are missing, the filing method matters. A late FBAR filed in isolation is not always the right first move. Read your options for late FBARs.

The bottom line

October 15 is your real deadline, and it comes without asking. If you are reading this after October 15 with an unfiled FBAR, do not panic and do not ignore it. The longer you wait, the fewer options you have, because the best compliance programs are built for people who come forward before the IRS finds them.

If you want help sorting out which years and which accounts need to be reported, let's talk.