The U.S. Supreme Court recently issued a 5-4 taxpayer-favorable opinion in United States v. Home Concrete & Supply, LLC, et. al.Home Concrete involved the Internal Revenue Service’s (IRS) audit of the taxpayer’s 1999 tax return on which the basis of property sold was overstated through use of the infamous a “Son of BOSS” tax shelter. The IRS assessed Home Concrete for the tax after the general three-year statute had lapsed, and Home Concrete argued that the assessment was not valid because the statute of limitations had expired.