Effective Date: January 16,
2026
Last Updated: January 16, 2026
8621Calculator.com is an independently developed software tool designed to assist users in tax calculation and preparation tasks related to IRS Form 8621, including computations under IRC §1291 and §1296.
8621Calculator.com does not provide tax advice, legal advice, or filing advice.
8621Calculator.com is not affiliated with:
References to statutes or IRS instructions are for implementation and educational purposes only.
PFIC regulations and Form 8621 instructions are subject to varying interpretations.
The 8621Calculator.com algorithm follows a specific, transparent computational logic. Its results may differ from:
Differences in interpretation do not indicate an error.
Tax laws, regulations, and administrative guidance may change.
8621Calculator.com does not guarantee that the software reflects:
Users are responsible for assessing applicability to their filing year.
By using 8621Calculator.com, you acknowledge that:
If you are unwilling to personally accept filing responsibility, this tool is not intended for you.
Use of 8621Calculator.com does not include:
The software is provided “as is”.
If a demonstrable calculation error attributable to the software is identified:
No warranty is created by such actions.
To the maximum extent permitted by law, the developer shall not be liable for:
By using this website, you acknowledge that you have read, understood, and agreed to this Legal Disclaimer.