Don't mail the late form yet. You find an old brokerage account in Singapore, or you realize the foreign LLC you set up five years ago should have generated a Form 5471 every year since. No income was hidden & the numbers were always on your 1040, but the information return never got filed. That gap runs under different rules from the offshore voluntary disclosure programs most people have heard of. Getting the label wrong before you file costs real money. The procedure below is the 2026 version.
What Is DIIRSP and Who Qualifies?
DIIRSP applies to a taxpayer who missed one or more international information returns, is not currently under civil examination or criminal investigation, and has not already been contacted by the IRS about the delinquent filings. Those are the only conditions the current procedure states.
The no-unreported-income screen people remember came from the pre-2020 version. The live IRS page lists those three conditions & an income condition is not among them, and the IRS FAQ page for these procedures says that taxpayers who have unreported income or unpaid tax are not precluded from filing delinquent international information returns. That FAQ page now carries an IRS historical-content notice, so the live page is the one that governs. Neither one imposes an income screen. If you also owe tax you still have to fix the income side, which usually means the streamlined procedures or a voluntary disclosure, so in practice DIIRSP fits the taxpayer whose income was always reported and who only missed the form. If any of those conditions fail, particularly if the IRS has already sent a notice about the missing form, DIIRSP is closed to you and a different response is required.
The forms most commonly caught in this gap are Form 5471 for U.S. persons with interests in foreign corporations, Form 5472 for foreign-owned U.S. corporations and foreign-owned single-member LLCs, Form 8938 for specified foreign financial assets, Form 3520 and 3520-A for foreign trusts and large foreign gifts, and Form 8865 for interests in foreign partnerships. Each one carries its own penalty structure. DIIRSP treats them the same way procedurally.
What Changed With the November 2020 Revision?
The November 2020 revision removed the pathway under which attaching a reasonable cause statement reliably headed off a penalty before assessment. Under the current procedure the IRS can assess the penalty during initial processing without reading that statement, and the taxpayer argues reasonable cause afterward, in response to the notice.
The relief that disappeared traced back to an old offshore voluntary disclosure FAQ that gave automatic penalty relief and was open only to taxpayers who were fully tax compliant. A lot of the content still online was written before the change & is simply wrong. Anyone relying on an article, forum post, or old memo describing the pre-2020 version is planning around a rule that no longer exists.
How Do You Actually File?
You file the delinquent returns through normal filing procedures. There's no DIIRSP form and no portal, and the routing is not the same for every form. Sending one to the wrong place restarts the problem you're trying to close.
A reasonable cause statement can be attached to each delinquent return explaining why the filing was late. How that statement is labeled, and where it sits in the package, changes whether the 3520 forms get their pre-assessment review at all. Get it wrong and you lose the one review that was worth having. These packages are usually paper, and processing takes noticeably longer than an electronic filing.
That 3520 difference is stated by the IRS itself. The delinquent-procedures page says that for Form 3520 and Form 3520-A reasonable cause statements will be considered prior to a penalty being assessed. It came out of an operating change announced in October 2024 that covered Part IV foreign gift reporting immediately & the trust portions of Forms 3520 and 3520-A by the end of that year, and it still stands in September 2026.
Which form is late changes what you should expect in the mail. If you're catching up three years of Form 5471, plan on penalty notices arriving no matter how strong your reasonable cause statement is. A late Form 3520 at least gets your statement read before the IRS assesses anything.
Should You Expect a Penalty Notice?
Yes, plan for one. DIIRSP does not guarantee penalty relief, and for Forms 5471, 5472, 8938 and 8865 the IRS can assess the penalty during processing before anyone reads the reasonable cause statement. A penalty notice is a realistic outcome even on a well-documented submission, and the fight for abatement usually happens after the penalty is assessed.
The statement filed with the return is still worth writing carefully, both because it can prevent a Form 3520 penalty outright and because it becomes the foundation of the abatement argument later if a notice does arrive. The IRS has also increased scrutiny of late-filed Forms 3520 and 5471 where the reasonable cause narrative is vague or boilerplate, and our guide to Form 5471 penalties and reasonable cause covers how those denials happen. A statement saying only that the taxpayer was unaware of the filing requirement invites a denial.
Building a Reasonable Cause Statement an Examiner Will Accept
One generic paragraph covering every year gets denied. The facts that excuse 2019 are rarely the facts that excuse 2022, and an examiner reading one recycled narrative across five years treats the whole thing as boilerplate.
The first statement you file becomes the permanent record the IRS works from. Everything argued later, in a notice response or on appeal, gets measured against it, and a thin first draft is hard to walk back once a penalty sits on the account.
Rebuilding the story after a notice arrives costs more than building it right the first time.
Should You Use DIIRSP, Streamlined, or Voluntary Disclosure?
The choice comes down to income and intent. The form doesn't decide it. No unreported income means DIIRSP is the right path. Unreported income paired with non-willful conduct, meaning negligence, a misunderstanding of the law, or an honest mistake, points to the Streamlined Filing Compliance Procedures.
Willful conduct, where the taxpayer knew about the obligation and chose not to comply, belongs in the IRS Voluntary Disclosure Practice, which carries its own process and its own risk profile.
The streamlined procedures then split again by where you lived. The streamlined domestic offshore procedures carry a 5% offshore penalty measured on the highest year-end aggregate value of the unreported foreign assets. The streamlined foreign offshore procedures carry no such penalty for qualifying filers who lived abroad. The same facts produce a very different bill.
Our quiet disclosure versus streamlined versus voluntary disclosure comparison walks through those three tracks side by side, including why filing delinquent returns quietly, with no acknowledgment of the gap at all, is the one path that consistently creates more risk than it resolves. If you are not sure which bucket applies, that uncertainty is itself a reason to get a professional opinion before anything is mailed, because filing through the wrong track can compromise the compliance certification required later, which we cover on our SDOP services page.
One of these procedures closed recently. On July 1, 2026 the IRS took down the page describing the Delinquent FBAR Submission Procedures, with no announcement and no replacement guidance. The no-penalty language still sits in the Internal Revenue Manual for examiners, so a late FBAR filed with a reasonable cause explanation is not suddenly a penalty case, but the public assurance a taxpayer could point to is gone. If your gap includes an unfiled FinCEN Form 114 as well as an information return, talk to someone before you file either one.
Why Does a Missed Information Return Keep the Statute of Limitations Open?
IRC 6501(c)(8) keeps the assessment statute open on the return the missing information relates to until that information is actually filed, and by default the extension reaches every item on the return and not only the item the form covers. IRC 6501(c)(8)(B) narrows it.
Where the failure was due to reasonable cause and not willful neglect, the extension applies only to the items related to that failure. Filing the delinquent form does not close the year. It starts a fresh three-year assessment window running from the date the IRS is furnished the information, which is why the exposure gets worse every year the form sits unfiled and why a documented reasonable cause position is worth building before anything goes in the mail.
What Penalties Are Actually Behind These Forms?
Each form has its own penalty statute, and the amounts are not close to each other. A missed Form 5472 starts at $25,000 while a missed Form 5471 starts at $10,000, and the foreign trust penalties are measured as a percentage of the money involved. Here is the base exposure, form by form.
These are separate statutes with separate penalty amounts and separate reasonable cause standards. The more favorable pre-assessment review the 3520 forms get is a separate thing, an IRS operating change announced in October 2024 and stated on the delinquent-procedures page itself. Which penalty section applies has nothing to do with it.
Should You File Delinquent International Information Returns Yourself?
DIIRSP works when the facts genuinely fit it. That means no open exam, no criminal investigation, no prior IRS contact about the missing form, and a reasonable cause story worth telling in writing. It doesn't guarantee you a way out, and it is not the same procedure the internet described five years ago.
Get the path confirmed before anything goes in the mail. Contact TS CPA for a free consultation. We respond within the same day.
Official IRS and Government Sources
- IRS: Delinquent International Information Return Submission Procedures
- IRS: Delinquent International Information Return Submission Procedures, Frequently Asked Questions, now flagged by the IRS as historical content
- IRS: Streamlined Filing Compliance Procedures
- IRS: Voluntary Disclosure Practice
- IRM 4.26.16, Report of Foreign Bank and Financial Accounts (FBAR)
- IRC Section 6501, Limitations on Assessment and Collection
- IRC Section 6038, Information Reporting With Respect to Certain Foreign Corporations and Partnerships
- IRC Section 6038A, Information With Respect to Certain Foreign-Owned Corporations
- IRC Section 6038B, Notice of Certain Transfers to Foreign Persons
- IRC Section 6038D, Information With Respect to Foreign Financial Assets
- IRC Section 6039F, Notice of Large Gifts Received From Foreign Persons
- IRC Section 6677, Failure to File Information With Respect to Certain Foreign Trusts
- IRC Section 6679, Failure to File Returns With Respect to Foreign Corporations or Foreign Partnerships