Investment Interest Deduction โ Limited to NII
Deductible limited to net investment income. Excess carries forward indefinitely.
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Limited to NII Carryover indefinite Must itemize Form 4952
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Why: Margin interest can reduce taxable income if you have investment income.
How: Enter interest paid, investment income, capital gains elected. See deductible and carryover.
Run the calculator when you are ready.
Sample Scenarios
Investment Details
Deduction Analysis
Investment Interest
Deduction
Tax Savings
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Estimates only โ not tax advice. Tax laws vary by jurisdiction. Consult a CPA or tax professional.
1. Key Takeaways
- โข Limited to net investment income
- โข Excess carries forward indefinitely
- โข Can elect to include capital gains
- โข Must itemize to claim
2. Did You Know?
Margin Interest
Common source
Carryover
Indefinite
Capital Gains
Optional election
Itemize
Required
Net Investment
Income + gains
Track
Keep records
3. How It Works
Net Investment Income = Investment Income + Capital Gains Elected. Deductible = min(Interest, Net Investment Income). Excess = Interest โ Deductible (carryover). Tax Savings = Deductible ร Rate.
4. Expert Tips
Track margin interest
Keep records
Capital gains election
Can increase deductible
Carryover
Preserves unused deduction
Itemize
Must exceed standard
5. Comparison Table
| Interest | Income | Deductible |
|---|---|---|
| $5,000 | $8,000 | $5,000 |
| $10,000 | $5,000 | $5,000 + $5K carryover |
6. FAQ
Interest, dividends, capital gains (if elected).
None. Carries forward indefinitely.
Yes. Standard deduction = no investment interest deduction.
7. Sources
- โข IRS โ Investment Interest
- โข IRS โ Form 4952
8. Quick Stats
Limited
To NII
Carryover
Indefinite
Itemize
Required
Form 4952
File
9. Disclaimer
Disclaimer: Estimates only. Consult a tax professional.
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