FBAR deadlines generate more confusion than almost any other filing rule — because there are three of them, they moved recently in historical terms, and one of them is "automatic" in a way that sounds too good to be true. Here is every date that matters for accounts held in calendar year 2025, which is what you are reporting on an FBAR filed during 2026.
The three dates for 2025 accounts
| Date | What it is | Who it applies to |
|---|---|---|
| April 15, 2026 | Original FBAR due date for 2025 accounts | All filers |
| October 15, 2026 | Automatic extension — no request, no form | All filers |
| April 15, 2027 | Additional automatic extension for signature-authority-only filers | Filers with no financial interest in the account |
The due-date structure comes from the IRS FBAR reference guide and the FinCEN filing page. The signature-authority extension is documented in KPMG's December 2025 taxnewsflash.
Why April 15?
Historically the FBAR was due June 30 with no extensions at all — a rule so rigid that Congress fixed it in the Surface Transportation and Veterans Health Care Choice Improvement Act of 2015, moving the deadline to April 15 (effective for the 2016 filing year onward) and adding the automatic October extension. Two goals: align FBAR planning with the tax calendar people already know, and give filers a realistic second chance. If you find an article saying the FBAR is due June 30, it is at least a decade out of date.
The automatic extension, precisely
The extension to October 15 is automatic in the strongest sense of the word:
- You do not file anything to get it. There is no application, no checkbox, no Form 4868 equivalent for the FBAR.
- A filing by October 15 is "timely." For penalty purposes, an FBAR filed by the following October 15 is treated as filed on time.
- It cannot be extended further for regular filers. October 15 is the end of the road — there is no second extension regardless of what happened with your income tax return.
- It does not interact with your Form 1040 extension. Filing (or not filing) Form 4868 for your tax return has no effect on the FBAR. They are separate filings with separate agencies: the return with the IRS, the FBAR with FinCEN.
Signature authority only: April 15, 2027
FinCEN grants filers with signature authority only an additional automatic extension to April 15 of the following year. "Signature authority only" means you can control the disposition of money in the account by communicating directly with the bank — but none of the funds are beneficially yours. Typical cases:
- An employee with authority over a company's foreign payroll or operating account
- Someone managing a parent's account under a power of attorney
- A treasurer or officer of a small organization with a foreign bank account
- An employee of a financial institution over certain work accounts (with a specific regulatory exception for fellow employees of the institution itself)
If any portion of the account is yours, you have a financial interest and the April 15/October 15 deadlines apply to you. Note one subtlety: if you have signature authority over your spouse's account or a joint account, you may have both a financial interest and signature authority — the earlier deadline governs.
Which calendar year are you filing for?
A frequent trap: the FBAR you file in 2026 is usually for calendar year 2025. The deadline follows the year the accounts were held, not the year you happen to file:
- Accounts held during 2025 → due April 15, 2026 → automatic extension October 15, 2026
- Accounts held during 2026 → due April 15, 2027 → automatic extension October 15, 2027
If you are reading this after October 15 and missed the window, don't panic — read how to file an FBAR late in 2026 instead.
Do missed FBAR deadlines create tax penalties?
This is a category error worth killing: the FBAR carries information-report penalties — the inflation-adjusted civil penalties described in our FBAR penalties guide — not late-payment penalties. There is no FBAR tax, no interest, and no underpayment charge. The exposure is the civil penalty structure (and, in extreme intentional cases, criminal referral). That distinction matters for one practical reason: a delinquent FBAR does not, by itself, create a balance due with the IRS. But it does create real penalty exposure that grows with every additional unfiled year, so the calculus for catching up is about demonstrating non-willfulness early.
Practical deadline playbook
- Plan for April 15 always. Treat October 15 as a safety net, not a plan. Filing near the original deadline keeps your documentation and facts fresh.
- Filing your 1040 late? File the FBAR on time anyway. The deadlines are independent; an extension on one is irrelevant to the other.
- Missed it and it's before October 15? File now — you are still timely.
- After October 15? File promptly and keep a dated memo of the reasons for the delay. See filing late after DFSP and how to write a reasonable cause statement.
- Signature authority over work accounts? You likely have until April 15, 2027 for 2025 accounts — but verify your accounts qualify before relying on it.
This page is general information, not tax or legal advice. Deadlines above are current as of September 2026; verify against the IRS and FinCEN pages linked above for filings after that date.
Frequently asked questions
Is the FBAR extension to October 15 really automatic?
Yes. Since tax year 2016, FBAR filers get an automatic extension to October 15 without filing any request. If you file by the following October 15, your FBAR is treated as timely filed. There is no Form 4868 for the FBAR and no penalty for using the extension.
Do I need Form 4868 for an FBAR extension?
No. Form 4868 extends your income tax return, not your FBAR. The FBAR extension to October 15 is built into the rules and requires no form at all. Filing Form 4868 neither extends nor shortens your FBAR deadline.
What happens if I miss October 15?
After October 15 the FBAR is delinquent. If the failure was non-willful, promptly file the FBAR as soon as you realize the miss and document the reasons — penalties can be waived for reasonable cause, though since July 1, 2026 there is no longer a published IRS delinquent-filing procedure promising waiver. See our guide to filing an FBAR late.
Who gets until April 15, 2027?
Filers with signature authority only — people who can direct money in a foreign account but have no beneficial interest in it, such as employees over a corporate account — receive an additional automatic extension. For 2025 accounts that deadline is April 15, 2027.
Is the FBAR deadline different for accounts held in 2026?
Yes, the deadline always follows the calendar year of the accounts. Accounts held during calendar year 2026 are reported on an FBAR due April 15, 2027, with the automatic extension to October 15, 2027.