Tax
How do I deduct margin interest?
Quick Answer
Margin interest is deductible as investment interest expense on Form 4952, capped at net investment income for the year. Requires itemizing on Schedule A line 9. Excess carries forward indefinitely; LTCG and qualified dividends generally excluded.

Warren Team
Updated April 26, 2026
37
Warren Team
Updated April 26, 2026
37
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