IRS Form 8621 is the information return used by U.S. taxpayers to report their ownership interests in Passive Foreign Investment Companies (PFICs). These complex investment vehicles require special tax treatment under U.S. law, making accurate Form 8621 filing critical for compliance.

Who Must File Form 8621?
You’ll need to complete this form if you:
- Own shares in a foreign mutual fund
- Hold interests in certain foreign corporations
- Received distributions from a PFIC
- Recognized gains from PFIC dispositions
Important: Even small investments may trigger filing requirements. Professional tax services can help determine if your foreign holdings qualify as PFICs.
Step-by-Step Guide to Completing Form 8621
Step 1: Gather Required Documentation
Before starting, collect:
- PFIC identification information (name, address, EIN)
- Your ownership details (number of shares, dates acquired)
- All financial statements from the PFIC
- Records of all distributions received
- Basis calculation documents
Step 2: Complete Part I – Taxpayer Information
- Line 1a: Your name and Taxpayer Identification Number
- Line 1b: Tax year being reported
- Line 1c: PFIC name and country of incorporation
- Line 1d: PFIC’s U.S. employer identification number (if any)

Step 3: Complete Part II – PFIC Election Information
- Line 2: Indicate if making a Qualified Electing Fund (QEF) election
- Line 3: Mark if this is the first year of the QEF election
- Line 4: Include the PFIC’s annual information statement if available
Step 4: Complete Part III – Income and Tax Calculations
- Line 5a: Report ordinary earnings from the PFIC
- Line 5b: Enter net capital gain from the PFIC
- Line 6: Calculate the total inclusion amount
- Line 7: Determine tax due using Form 8621 instructions
Step 5: Complete Part IV – Distributions
- Line 8: Report actual distributions received
- Line 9: Calculate excess distributions (if applicable)
- Line 10: Determine tax on excess distributions
Step 6: Complete Part V – Dispositions
- Line 11: Report gains from PFIC stock dispositions
- Line 12: Calculate tax on disposition gains
Step 7: Complete Part VI – Additional Information
- Line 13: Provide any required supplemental statements
- Line 14: Include any other relevant information
Step 8: Sign and File
- Attach Form 8621 to your annual tax return
- Keep copies of all supporting financial statements
- File by your return’s due date (including extensions)
Common PFIC Reporting Mistakes
- Missing filing deadlines – PFIC reporting must accompany your annual return
- Incomplete financial data – All PFIC financial statements must be translated appropriately
- Miscalculating tax liabilities – PFIC taxation uses complex formulas
- Failing to make proper elections – QEF elections require specific documentation
For accurate PFIC reporting, consider professional tax services with international expertise.

Final Thoughts
Properly filing IRS Form 8621 is essential for U.S. taxpayers with PFIC investments. By following these steps and maintaining complete financial statements, you can meet your reporting obligations while reducing tax liabilities. For complex PFIC situations or multiple foreign holdings, professional tax services can provide valuable guidance and ensure full compliance.