Quick Answer
Children with investment income over $1,300 in 2026 must file a tax return and may owe kiddie tax. Unearned income between $1,300-$2,600 is taxed at the child's rate (typically 10%). Income over $2,600 is taxed at the parent's highest marginal rate, which can reach 37% for high-income families.
Best Answer
Michelle Woodard, Tax Policy Analyst
Parents who opened UTMA/UGMA accounts or transferred investments to their children
When your child must file a tax return
Your child must file a tax return if their unearned income (investments) exceeds $1,300 in 2026. This includes dividends, capital gains, interest, and rental income from assets in their name.
Filing requirements for children:
How the kiddie tax works
The kiddie tax prevents parents from shifting investment income to children to take advantage of lower tax brackets. Here's how it's calculated:
2026 Kiddie Tax Brackets:
Example: Child with $5,000 investment income
Let's say your 12-year-old has $5,000 in dividend income and your family's highest tax rate is 24%:
Without kiddie tax, this would be taxed entirely at 10% = $370. The kiddie tax adds an extra $336.
Age limits for kiddie tax
The kiddie tax applies to:
Types of income subject to kiddie tax
Unearned income (subject to kiddie tax):
Earned income (NOT subject to kiddie tax):
Strategies to minimize kiddie tax impact
1. Time capital gains carefully:
2. Focus on growth investments:
3. Consider Series EE/I bonds:
4. Split income timing:
Form 8615: Computing the kiddie tax
If your child owes kiddie tax, you'll need to file Form 8615 with their return. This form:
Alternative: Include child's income on parent's return
For children under 19 with only investment income between $1,300-$13,000, you can elect to include their income on your return using Form 8814. This:
What you should do
1. Track all investment income in your child's name throughout the year
2. Calculate whether filing is required using the $1,300 threshold
3. Prepare Form 8615 if kiddie tax applies (income over $2,600)
4. Consider timing strategies for future years to minimize tax impact
5. Keep detailed records of all investment transactions and basis
6. Use our return scanner to ensure you're handling kiddie tax correctly
Key takeaway: Children with investment income over $1,300 must file taxes, and income over $2,600 is taxed at the parent's highest rate. A child with $5,000 in dividends could owe $706 in taxes if parents are in the 24% bracket — proper planning can reduce this burden.
*Sources: [IRS Publication 929](https://www.irs.gov/pub/irs-pdf/p929.pdf), [Form 8615 Instructions](https://www.irs.gov/pub/irs-pdf/i8615.pdf)*
Key Takeaway: Children with investment income over $2,600 face kiddie tax at parents' highest rate — a child with $5,000 in dividends could owe $706 if parents are in the 24% bracket.
Kiddie tax calculation examples for different income levels in 2026
| Child's Investment Income | Tax-Free (0%) | Child's Rate (10%) | Parent's Rate | Total Tax |
|---|---|---|---|---|
| $1,000 | $1,000 | $0 | $0 | $0 |
| $2,000 | $1,300 | $700 | $0 | $70 |
| $5,000 | $1,300 | $1,300 | $2,400 | $370 + (Parent's rate × $2,400) |
| $10,000 | $1,300 | $1,300 | $7,400 | $130 + (Parent's rate × $7,400) |
More Perspectives
Michelle Woodard, Tax Policy Analyst
Grandparents who want to transfer wealth through investment gifts but need to understand tax implications
Gift tax vs. income tax implications
When you gift investments to grandchildren, you face two separate tax considerations: gift tax on the transfer and ongoing income tax on the investment earnings.
2026 Gift tax limits:
Strategies for tax-efficient gifting
1. Gift appreciated assets before sale:
Instead of selling stock and gifting cash, gift the stock directly:
2. Consider timing of income-producing gifts:
If gifting dividend-paying stocks or bonds:
3. Use 529 education savings plans:
Example: $50,000 stock gift impact
You gift $50,000 of dividend-paying stock to your 16-year-old grandchild. The stock pays 3% dividends = $1,500 annually.
Tax on dividends:
Much better than: Keeping in your name at 24% rate = $360 tax annually
Avoiding common mistakes
1. Don't gift too much income-producing assets:
Large dividend portfolios can create significant kiddie tax burdens
2. Consider the grandchild's age:
3. Coordinate with parents:
Documentation you need
Key takeaway: Gift appreciated assets rather than income-producing investments to minimize kiddie tax impact — a $50,000 growth stock gift creates less tax burden than dividend-paying stocks for grandchildren under 18.
Key Takeaway: Gift growth investments rather than dividend-paying assets to grandchildren under 18 to minimize kiddie tax — focus on 529 plans for education goals.
Michelle Woodard, Tax Policy Analyst
Wealthy families whose children have substantial investment accounts and face significant kiddie tax liability
When kiddie tax becomes a major concern
For high-net-worth families, children's investment income can generate substantial tax liability. If your child has significant unearned income and you're in high tax brackets, the kiddie tax can be punitive.
Example: High-income family impact
Child has $25,000 in investment income, parents in 37% bracket:
Advanced planning strategies
1. Generation-skipping trust structures:
2. Family limited partnerships:
3. Grantor trust techniques:
International considerations
For families with foreign investments or international income:
State tax complications
Different states handle kiddie tax differently:
Professional guidance essential
With significant assets involved, consider:
Key takeaway: High-net-worth families face kiddie tax rates up to 37% on children's investment income over $2,600 — consider trust structures and professional planning to minimize the $8,000+ annual tax burden on substantial portfolios.
Key Takeaway: Wealthy families may face $8,000+ annual kiddie tax on substantial children's investment income — advanced trust planning and professional guidance become essential at these levels.
Sources
- IRS Publication 929 — Tax Rules for Children and Dependents
- Form 8615 Instructions — Tax for Certain Children Who Have Unearned Income
- IRS Publication 950 — Introduction to Estate and Gift Taxes
Reviewed by Michelle Woodard, Tax Policy Analyst on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.