Nothing that happens inside an IRA is deductible or taxable. When you withdraw funds, you pay tax on what you withdraw. If your withdrawal is less than you hoped because of fees or investment losses, then you just withdraw less and pay less tax.
Other investment fees are miscellaneous itemized deductions subject to the 2% rule. These deductions are disallowed at the federal level for tax years 2018-2025 but may still be allowed in some states. You must enter them in the federal section and they will flow to your state tax return if the situation applies to you.
