Investment Interest Expense — Tax Deduction Guide 2026
Deduct interest paid on money borrowed to purchase taxable investments.
Eligibility
Investors with margin interest and other investment interest
Tax Savings Calculator
Estimated Tax Savings
$1,100
At the 22% tax bracket, a $5,000 deduction saves you $1,100 in taxes.
Savings by Tax Bracket
Requirements
- 1Limited to net investment income
- 2Carryforward available
- 3Cannot include tax-exempt interest
Common Mistakes to Avoid
- !Exceeding net investment income
- !Including mortgage interest
Required Tax Forms
Calculate Your Full Tax Savings
Use our free tax calculators to optimize your entire tax return.
Frequently Asked Questions
What is the Investment Interest Expense?
Deduct interest paid on money borrowed to purchase taxable investments.
Who is eligible for the Investment Interest Expense?
Investors with margin interest and other investment interest
How much can I save with the Investment Interest Expense?
The average tax savings is $2,000 per year. Your actual savings depend on your tax bracket and qualifying amount.
What forms do I need for the Investment Interest Expense?
You'll need to file Form 4952 and Schedule A to claim this deduction.
What are common mistakes with the Investment Interest Expense?
Common mistakes include: Exceeding net investment income; Including mortgage interest. Always double-check requirements before filing.
Is the Investment Interest Expense worth claiming?
With average savings of $2,000, the investment interest expense is worthwhile for most eligible taxpayers. Make sure you meet all eligibility requirements.