For 2018 through 2025, you cannot deduct investment fees. These fees are treated as miscellaneous itemized deductions subject to a 2% of adjusted gross income floor; these deductions have been suspended for this period.
Items, such as interest, state and local income and sales taxes, charitable contributions, and medical deductions, claimed on Schedule A of Form 1040. Itemized deductions are subtracted from adjusted gross income to arrive at taxable income. The amount of itemized deductions is also subject to a reduction when adjusted gross income exceeds certain limits.