For 2018 through 2025, the miscellaneous itemized deduction for investment-related costs is not deductible. Before 2018, these amounts were subject to the 2%-of-adjusted-gross-income floor. After 2026, such amounts may be deductible (assuming total costs exceed the 2% floor).
A revenue ruling is the Commissioner’s “official interpretation of the interpretation of the law” and generally is binding on revenue agents and other IRS officials. Taxpayers generally may rely on published revenue rulings in determining the tax treatment of their own transactions that arise out of similar facts and circumstances.