In most cases, no timely QEF or Mark-to-Market (MTM) election was made. That means prior years generally fall under the default §1291 regime unless formal relief applies.
Choosing a Cleanup Path
Late Form 8621 issues are usually handled through one of two primary disclosure paths:
| Cleanup Path | When It Applies |
|---|---|
| Amended Returns | You filed U.S. tax returns but omitted required Form 8621 reporting. Used to correct specific PFIC reporting errors. |
| Streamlined Procedures | The missed PFIC reporting is part of broader non-willful offshore noncompliance (FBAR, Form 8938, foreign income). |
The Reality of Late PFIC Filings
Open Statute-of-Limitations Risk
Under IRC §6501(c)(8), a missing Form 8621 can keep the assessment period open for tax items related to the missing PFIC information until the required information is furnished. In practice, the PFIC issue may remain "open" even if the rest of the return appears closed.
No Automatic Retroactive Election
Filing Form 8621 late does not automatically create a retroactive MTM or QEF election. Unless the taxpayer qualifies for formal late-election relief or a valid "cleanup" election, prior years generally remain under §1291.
Country-Specific Summary: KiwiSaver
If you never filed Form 8621 for KiwiSaver, the cleanup usually starts with choosing between amended returns and Streamlined procedures. Because no timely QEF or MTM election was made, prior years generally remain under §1291, where gains, withdrawals, and fund switches may trigger deferred tax and interest charges.