On March 29, 2022, the Tax Court issued a Memorandum Opinion in the case of Golditch v. Commissioner (T.C. Memo. 2022-26). The primary issues presented in Golditch v. Commissioner were (i) whether the taxpayer was permitted to challenge his underlying tax liability at CDP hearing; (ii) whether the taxpayer’s argument that liabilities were not properly assessed because substitutes for return were invalid was frivolous; and (iii) whether the imposition of frivolous position penalty on taxpayer