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).
An amount taken from income as a prepayment of an individual’s tax liability for the year. In the case of wages, the employer withholds part of every wage payment. Backup withholding from dividend or interest income is required if you do not provide the payer with a correct taxpayer identification number. Withholding on pensions and IRAs is automatic unless you elect to waive withholding.