Form 4952, Investment Interest Expense Deduction

Internal Revenue Code (IRC) section 163(d) provides a limitation on the amount individuals, estates, or trusts can use as investment interest expense deduction. The deduction is limited to the taxpayer’s net investment income for the taxable year. The taxpayer can carry forward excess deduction amounts to future years. Individuals, estates, and trusts use Form 4952, Investment Interest Expense Deduction, to accumulate a taxpayer’s interest from all sources and provide a line-by-line computation of the allowable deduction for investment interest.

The latest form for Form 4952, Investment Interest Expense Deduction expires 2027-04-30 and can be found here.