An investment management fee is a tax-deductible expense according to Publication 529 (http://www.irs.gov/publications/p529/index.html) and qualifies as a miscellaneous deduction provided that the deductions exceed 2% of your Adjusted Gross Income. The fee must be listed on your Schedule A from under “Job Expenses and Certain Miscellaneous Deductions” and attached to your 1040. For more information please consult the Internal Revenue Code or contact the IRS directly.