Assume you have a brokerage account that is not a Roth, IRA, or 401K that charges investment-management fees. Those fees can no longer be deducted on your individual tax return (this was a 2018 law change). Instead of paying investment-management fees from your taxable brokerage account, direct your advisor to withdrawal the investment management fees from your IRA or 401K account. This will reduce the amount in those accounts which will someday be taxed, thus providing a back-door method to deduct those fees.