Fortunato J. Mendes v. Commissioner of Internal Revenue

Summary

The Court sustained the Commissioner's determination that the taxpayer had unreported income, lacked substantiation for claimed deductions and dependency exemptions, and owed the additional tax on an early retirement-plan distribution. It also sustained additions to tax for late filing, negligence, and failure to pay estimated tax, holding that a return filed after the deficiency notice could not invoke the section 6654 return-filed safe harbor. The concurring opinions agreed with the result but emphasized the established validity-of-return test and its relationship to the statutory scheme.