The IRS allows victims of Ponzi schemes to deduct their losses as theft losses rather than as capital losses. While thefts of personal use property are currently barred (only disaster losses are allowed), thefts of investment property remain deductible as an itemized deduction. The IRS has guidance on determining the amount and timing of the losses as well as a safe harbor for determining the year in which the loss is deemed to occur.
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.