FBAR: How Many Years Back Do You Have to File?

For most people catching up, the answer is six years of FBARs. The IRS Streamlined procedures ask for the most recent 6 years for which the FBAR due date has passed, plus 3 years of tax returns, and the civil FBAR penalty can generally only be assessed within 6 years of each violation. Where you land depends on which route you use and whether your income was already reported. Who has to file at all is covered in our FBAR filing requirements guide.

How many years of FBARs does Streamlined require?

Six. Both Streamlined tracks tell you to file delinquent FBARs “for each of the most recent 6 years for which the FBAR due date has passed,” and to file returns for “each of the most recent 3 years for which the U.S. tax return due date (or properly applied for extended due date) has passed.” That’s the foreign track and the domestic track word for word.

The FBAR is due April 15 after the calendar year, with an automatic extension to October 15 that you don’t have to ask for, per the IRS FBAR page. So which six years count depends on the date you file. In late October 2026, the 2025 FBAR’s due date has passed, and the six years are 2020 through 2025.

The two tracks differ in other ways:

• Foreign (SFOP). For a US citizen or green card holder, you need at least one of the last 3 years with no US abode and at least 330 full days outside the US. You can file original returns you never filed, or amended ones. No penalty if you follow the instructions.
• Domestic (SDOP). For people who don’t meet that test. You must already have filed the original returns, because “you may not file delinquent income tax returns” under this track. It carries a miscellaneous offshore penalty of 5 percent of the highest year-end total of the assets involved.

Each late FBAR is filed electronically through BSA E-Filing. The IRS tells you to select “Other” as the reason for filing late and type “Streamlined Filing Compliance Procedures” in the box. Our guide on SDOP vs SFOP covers eligibility on both tracks in detail.

Can I file FBARs for previous years without Streamlined?

Yes, and if your income was reported all along, you usually should. The IRS used to publish “Delinquent FBAR Submission Procedures” for this case. When we checked on October 20, 2026, that page returned a 404 “Page Not Found,” and the IRS’s list of options for undisclosed foreign assets names only three: the Criminal Investigation Voluntary Disclosure Practice, the Streamlined procedures, and the delinquent international information return procedures.

What the IRS says now sits on its FBAR page. If the IRS “hasn’t contacted you about a late FBAR and you’re not under civil or criminal investigation by the IRS, you should file late FBARs as soon as possible to keep potential penalties to a minimum.” It points you to FinCEN’s late-filing instructions, which say a report filed after October 15 of the following year is a late filing, and you pick a reason from the drop-down list or select “other” and write an explanation.

The page doesn’t give a number of years. On this route, the IRS no longer puts a number on “how many years back.” The penalty rule underneath is unchanged. Under 31 USC 5321(a)(5)(B)(ii), no non-willful penalty applies if the violation was due to reasonable cause and the balance was properly reported, and Publication 5569 says no penalty will be imposed if you report the account on a late FBAR “and the IRS determines the FBAR violation was due to reasonable cause.” What a good explanation looks like is in our guide to late FBARs and the delinquent route.

If income from the accounts was never reported, late FBARs alone don’t fix the returns, and Streamlined is the usual route.

How far back can the IRS assess FBAR penalties?

Six years from each violation. 31 USC 5321(b)(1) lets Treasury assess a civil FBAR penalty “at any time before the end of the 6-year period beginning on the date of the transaction with respect to which the penalty is assessed.” The statute applies that to the civil penalties in subsection (a), willful and non-willful alike.

The IRS’s manual says when the clock starts. Under IRM 4.26.16, for calendar years 2016 and later the “violation date” is the end of the day on April 15 of the following year, “if a complete and accurate FBAR is not filed by October 15th.” For 2015 and earlier it was June 30 of the following year.

So the 2019 FBAR’s violation date was April 15, 2020, and the six years ran out around April 15, 2026. The 2020 FBAR’s violation date was April 15, 2021, so it stays open until about April 2027. The same manual notes the FBAR statute can be extended, so an open examination changes the math. Penalty amounts and the Bittner decision are in our FBAR penalties decision tree.

Route	Years of FBARs	Years of tax returns	Built for
Streamlined Foreign Offshore	Most recent 6 past due	Most recent 3 past due (original or amended)	Non-willful, meets the non-residency test
Streamlined Domestic Offshore	Most recent 6 past due	Most recent 3, amended only	Non-willful, US resident, originals already filed
Late FBARs with an explanation	IRS sets no number; 6 matches the penalty window	None, if income was already reported	Income reported, only FBARs missed, no IRS contact
Voluntary Disclosure Practice (proposed framework)	Most recent 6	Most recent 6	Willful conduct, criminal exposure
Civil penalty assessment limit	6 years from each violation date	n/a	The outer edge of exposure for FBARs

Do I file FBARs older than six years?

Not under Streamlined. The procedure asks for the most recent 6 years and stops there, and a taxpayer who follows the instructions isn’t subject to FBAR penalties for the years it covers. Nothing in the Streamlined instructions asks for a seventh year, and the civil penalty window on an older FBAR has generally closed.

There are cases where older years matter. If the IRS has opened a civil examination of any year, or you’re under criminal investigation, Streamlined is closed to you, and the IRS manual notes the FBAR statute can be extended. If the conduct was willful, the look-back comes from the Voluntary Disclosure Practice instead, and that’s the point to read whether you need an FBAR lawyer or a CPA. And if you’re filing late FBARs on your own (no program) because your income was always reported, six years tracks the assessment window, though the IRS doesn’t put a number on it.

How long do I keep FBAR records?

Five years. 31 CFR 1010.420 says the records “shall be retained for a period of 5 years,” and the IRS FBAR page says “generally, you must keep these records for five years from the due date of the FBAR.” The records are the name on the account, the account number, the bank’s name and address, the account type and the maximum value during the year.

The law doesn’t say what document has to hold that. The IRS says bank statements or a copy of the filed FBAR can do it. For a catch-up, the practical problem runs the other way: the sixth year back is older than the five-year retention rule, so you may need to rebuild a maximum value from whatever statements you can still get.

How many years back is a voluntary disclosure?

Generally six, under the framework the IRS has proposed. The Voluntary Disclosure Practice is run by IRS Criminal Investigation for people whose failure was willful, which the IRS describes as “the intentional, purposeful, deliberate act to hide income or assets.” It isn’t for mistakes.

Under the proposed framework, the IRS says the disclosure period “generally includes the most recent six years of amended or delinquent returns and reports,” and that taxpayers “must file returns and reports for the disclosure period only.” The proposal went out for comment in December 2025, and the IRS says it doesn’t create rights for people who applied before it’s finalized. Under the proposal, FBAR penalties apply per year and are adjusted for inflation each year. Our guide on Streamlined vs voluntary disclosure covers where the line sits.

What to do next

Write down the year you first had more than $10,000 across foreign accounts, whether you filed US returns for each year, and whether the income from those accounts was on them. Those three facts pick the route, and the route sets the number of years. What it typically costs to file them is in our guide to FBAR filing costs.

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.