IRS Form 8818: Dual Filing for Children’s Investment Income

Optional election to report a child's unearned income on parents' return instead of filing separately.

Who Qualifies for Dual Filing?

  • Age requirements: Under 19 (or under 24 if full-time student)
  • Income limits: Only unearned income between $1,100-$11,000 (2024)
  • Filing status: Parents must file jointly if married
  • No self-employment: Child cannot have earned income

Available only if child would otherwise need to file Form 8615.

Key Benefits vs Drawbacks

Advantages Considerations
Eliminates separate filing for child May increase parents' AGI for other tax benefits
Simplifies tax preparation Could phase out parents' deductions/credits
Single tax payment Permanently forfeits child's standard deduction

Election Requirements

  • Parental consent: Both parents must sign if filing jointly
  • Irrevocable choice: Cannot undo after filing deadline
  • Documentation: Must attach all child's 1099 forms
  • Thresholds: Cannot use if child has $11,000+ unearned income

When to Avoid This Election

  • Parents are in highest tax bracket (37%)
  • Family receives ACA subsidies or education credits
  • Child has capital losses to carry forward
  • Parents are subject to Net Investment Income Tax

Incorrect elections can cost thousands in lost tax benefits.

Alternative Strategies
  • Direct filing: Child files separately with Form 8615
  • Trust allocation: Using trust tax rates instead
  • Income shifting: Gifting appreciating assets
  • 529 plans: Tax-free growth alternative

Explore Related Forms & Notices

Need Dual Filing Analysis?

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  • Side-by-side tax impact comparisons
  • Family income optimization strategies
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In 2015, Jessica Elvir founded KARME after witnessing firsthand how tax companies were failing their clients. Having worked with several firms that prioritized profits over people, Jessica knew there had to be a better way – one that put integrity and client success at the center of everything.
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