Kiddie Tax
Kiddie Tax
Tax rule preventing income shifting by taxing a child's unearned income above $2,700 at the parent's marginal tax rate instead of the child's lower rate. Applies through age 18 (or through age 23 if a full-time student). Only affects unearned income such as dividends, interest, and capital gains from custodial accounts (UGMA/UTMA), not earned income from employment.
A 16-year-old has $8,000 in dividend income from a UGMA account and $3,000 in wages from a part-time job. The first $2,700 of unearned income is taxed at the child's rate (10%), but the remaining $5,700 of dividends ($8,000 - $2,700) is taxed at the parents' marginal rate (32% bracket). The $3,000 in W-2 wages is always taxed at the child's rate because the kiddie tax only applies to unearned income.
Students often believe the kiddie tax applies to all income, but it only affects unearned income (dividends, interest, capital gains). Earned income from a job is always taxed at the child's lower rate. Another confusion: the age cutoffs. The rule applies through age 18, or through age 23 if the child is a full-time student. At age 24, the kiddie tax no longer applies regardless of student status.
How This Is Tested
- Calculating kiddie tax on UGMA/UTMA account unearned income above the $2,700 threshold
- Identifying which types of income are subject to kiddie tax (unearned only: dividends, interest, capital gains) versus exempt (W-2 wages)
- Determining if a child qualifies for kiddie tax based on age (through age 18, or through age 23 if full-time student)
- Understanding that the parent's marginal rate applies only to the unearned income exceeding the threshold, not all income
- Recognizing kiddie tax as a reason custodial accounts may be less tax-efficient than 529 plans for high-balance education savings
Regulatory Limits
| Description | Limit | Notes |
|---|---|---|
| Unearned income threshold (2026) | $2,700 annually | Unearned income below this amount taxed at child's rate; excess taxed at parent's marginal rate |
| Age limit (automatic application) | Through age 18 | Kiddie tax automatically applies to all children through age 18 with unearned income |
| Age limit (conditional application) | Ages 19-23 (full-time students) | Applies if child is a full-time student |
| Income types subject to kiddie tax | Unearned income only | Dividends, interest, capital gains, rent, royalties; NOT W-2 wages or self-employment income |
| Tax rate on excess | Parent's marginal tax rate | Can reach 37% for high-income parents, significantly higher than child's rate |
Example Exam Questions
Test your understanding with these practice questions. Select an answer to see the explanation.
David and Maria are opening a UGMA custodial account for their 10-year-old daughter with an initial $50,000 contribution invested in dividend-paying stocks. They expect the account to generate approximately $2,000 in annual dividend income initially, growing as they add more contributions. They are in the 32% tax bracket. Their investment adviser mentions the kiddie tax when discussing tax implications. What is the primary tax concern with this strategy?
B is correct. The kiddie tax taxes unearned income (like dividends) above $2,700 at the parents' marginal tax rate. Currently generating $2,000 annually, they're below the threshold, but as contributions grow and dividend income exceeds $2,700, the excess will be taxed at their 32% rate instead of their daughter's lower 10-12% rate. This significantly reduces the tax-shifting benefit of custodial accounts.
A is incorrect because it ignores the kiddie tax threshold. Only the first $2,700 of unearned income is taxed at the child's rate; amounts above that are taxed at the parents' rate. C is incorrect because the kiddie tax doesn't limit contributions—it only affects how income above $2,700 is taxed. They can contribute unlimited amounts, but the tax benefit diminishes. D is incorrect because UGMA account income is NOT tax-free; it's taxable income reported on the child's tax return, subject to kiddie tax rules.
The Series 65 exam tests your ability to explain kiddie tax implications when recommending custodial accounts. Understanding that unearned income above $2,700 loses the low-rate tax advantage is critical for suitability analysis. Advisers must compare this to alternatives like 529 plans, which offer tax-free growth for education expenses without kiddie tax concerns.
What is the 2026 threshold above which a child's unearned income is taxed at the parent's marginal tax rate under the kiddie tax rules?
B is correct. For 2026, the kiddie tax applies to unearned income exceeding $2,700. The first $2,700 of a child's unearned income (dividends, interest, capital gains) is taxed at the child's rate, and any amount above this threshold is taxed at the parent's marginal rate.
A ($1,150) is an outdated or incorrect threshold. C ($2,500) is a common distractor but not the current threshold for kiddie tax. D ($5,000) is not related to kiddie tax thresholds. The $2,700 figure is the critical number to remember for exam questions involving custodial account taxation.
The Series 65 exam frequently tests knowledge of specific kiddie tax thresholds because they are essential for calculating tax liability on custodial accounts. Knowing the exact $2,700 threshold allows you to accurately advise clients on the tax efficiency of UGMA/UTMA accounts versus other education savings vehicles.
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Access Free BetaA 15-year-old child has the following income for the tax year: $3,000 in W-2 wages from a summer job and $6,500 in dividend income from a UGMA custodial account. The parents are in the 32% federal tax bracket, and the child would be in the 10% bracket on their own income. Assuming the kiddie tax threshold is $2,700, what is the total federal income tax owed on the child's unearned income?
B is correct. Calculate the kiddie tax on unearned income only:
Step 1: Identify unearned income: $6,500 in dividends (the $3,000 W-2 wages are earned income, not subject to kiddie tax).
Step 2: Apply kiddie tax threshold:
- First $2,700 of unearned income: taxed at child's 10% rate = $2,700 × 0.10 = $230
- Remaining unearned income: $6,500 - $2,700 = $4,200, taxed at parents' 32% rate = $4,200 × 0.32 = $1,344
Step 3: Total tax on unearned income: $230 + $1,344 = $1,574
Note: The $3,000 in wages is taxed separately at the child's rate and is not subject to kiddie tax.
A ($230) only calculates tax on the first $2,700 at the child's rate, ignoring the excess taxed at the parent's rate. C is a duplicate of the correct answer. D ($2,080) incorrectly applies the 32% rate to all $6,500 of unearned income: $6,500 × 0.32 = $2,080.
Kiddie tax calculations appear frequently on the Series 65 exam. You must distinguish between earned income (always taxed at child's rate) and unearned income (split between child's rate up to $2,700 and parent's rate above). Understanding the two-tier calculation is essential for advising clients on the true after-tax return of custodial accounts.
All of the following statements about the kiddie tax are accurate EXCEPT
C is correct (the EXCEPT answer). Earned income from W-2 wages or self-employment is NOT subject to the kiddie tax and is always taxed at the child's own tax rate. The kiddie tax applies exclusively to unearned income (dividends, interest, capital gains, rent, royalties). A teenager working a summer job earning $10,000 pays tax at their own lower rate, not the parents' rate.
A is accurate: The kiddie tax specifically targets unearned investment income to prevent income shifting strategies. B is accurate: Children under 18 are automatically subject to kiddie tax rules on unearned income; there's no exception for minors under 18. D is accurate: The kiddie tax was enacted by Congress specifically to prevent families from transferring assets to children in lower tax brackets to reduce overall family tax liability.
The Series 65 exam tests your ability to distinguish between earned and unearned income in kiddie tax scenarios. Many candidates incorrectly believe all of a child's income is taxed at the parent's rate. Understanding that W-2 wages and self-employment income are exempt from kiddie tax is critical for comprehensive tax planning and accurately explaining UGMA/UTMA account taxation to clients.
A 17-year-old full-time high school student has $7,200 in dividend income from a UGMA account and $4,500 in W-2 wages from a part-time job. The parents are in the 32% tax bracket. Which of the following statements are accurate regarding the tax treatment of this income?
1. The $4,500 in wages will be taxed at the child's rate, not the parents' rate
2. The first $2,700 of dividend income will be taxed at the child's rate
3. The remaining $4,900 of dividend income will be taxed at the parents' 32% rate
4. All income must be reported on the parents' tax return because the child is a minor
B is correct. Statements 1, 2, and 3 are accurate.
Statement 1 is TRUE: Earned income (W-2 wages) is never subject to the kiddie tax. The $4,500 in wages is taxed entirely at the child's own tax rate, regardless of the parents' income or tax bracket.
Statement 2 is TRUE: The first $2,700 of unearned income (dividends) is taxed at the child's rate. This is the kiddie tax threshold for 2026.
Statement 3 is TRUE: Dividend income above the $2,700 threshold is taxed at the parents' marginal rate. The excess is $7,200 - $2,700 = $4,900, which will be taxed at 32% (the parents' rate) instead of the child's lower rate.
Statement 4 is FALSE: The child must file their own tax return using their own Social Security Number. While the kiddie tax uses the parents' marginal rate for calculation purposes, all income is reported on the child's return, not the parents'. This is especially important for UGMA/UTMA accounts, which always use the child's SSN.
The Series 65 exam tests comprehensive understanding of kiddie tax mechanics through multi-part scenarios. You must correctly identify which income is subject to kiddie tax (unearned only), calculate the two-tier taxation (child's rate up to threshold, parent's rate above), and understand tax filing requirements (child files separately despite using parent's rate). Questions often include both earned and unearned income to test whether you can properly segregate the two types.
💡 Memory Aid
Remember "Kids Can't Shift": The kiddie tax stops income shifting by taxing unearned income over $2,700 at the parent's rate, not the kid's rate. Think of it as the "$2,700 Allowance": the first $2,700 of unearned income is the kid's "tax allowance" at their low rate, but anything above that gets taxed like the parents earned it. Earned = Exempt: W-2 wages are always safe from kiddie tax.
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