Tax Legal Services · Primary-source case analysis

Badaracco: A Nonfraudulent Amended Return Did Not Close the Fraud Assessment Period

By Aneeta Mishra and Timothy Chan

Published August 22, 2026

Badaracco v. Commissioner concerned taxpayers who filed fraudulent original returns and later submitted amended returns correcting the omitted income before the IRS issued deficiencies.

The original fraudulent return triggered the unlimited period

Section 6501(c)(1) applies when a false or fraudulent return is filed with intent to evade tax, allowing assessment at any time under the statutory rule.

An amended return did not erase the original filing

The later correction could supply evidence about conduct and cooperation but did not transform or replace the fraudulent return for limitations purposes.

The ordinary period was not restarted by candor

The Court rejected a rule giving the government only three years from the amended return, relying on the text and enforcement difficulties associated with fraud investigations.

Fraud still requires proof

The IRS must establish the statutory fraud predicate under the governing burden and record; an error, negligence, or aggressive position alone does not invoke the unlimited period.

Key takeaways

• Preserve every original and amended filing.
• Distinguish fraud from negligence or substantial understatement.
• Build the evidence of intent item by item.
• Analyze limitations separately for tax, additions, and criminal exposure.