Kiddie Tax Australia 2026: What Parents Need to Know

The Kiddie Tax is a set of tax rules that apply to unearned income received by children under 18 in Australia. Its main purpose is to prevent income splitting—where adults might shift investment income into a child’s name to take advantage of lower tax rates. Instead, the Kiddie Tax ensures that most unearned income earned by minors is taxed at higher rates than would otherwise apply.

Who Does the Kiddie Tax Affect?

• Children under 18 at the end of the financial year who are not in full-time employment.
• Types of income covered:
  • Interest from bank accounts
  • Dividends from shares
  • Distributions from trusts
  • Capital gains from investments held in the child’s name

It’s important to note that income from a child’s own work—such as wages from a part-time job—is not subject to the Kiddie Tax. Only unearned income, like investment returns, is affected.

The Kiddie Tax applies a tiered tax rate to unearned income above a certain threshold. While the specific rates and thresholds can change over time, the general structure remains consistent: a small amount of unearned income is tax-free, but income above this is taxed at higher rates than for adults.

Typical Kiddie Tax Structure

• A tax-free threshold applies to the first portion of unearned income.
• Income above the threshold is taxed at higher rates, which can be significantly higher than adult tax rates at similar income levels.

For example, if a child earns a modest amount of bank interest and dividends in their own name, only the first part may be tax-free, with the remainder taxed at elevated rates. This can result in a surprisingly high tax bill, even on relatively small investment balances.

Why Does the Kiddie Tax Exist?

The Kiddie Tax was introduced to discourage adults from minimising their own tax by shifting investment income to children. By taxing most unearned income of minors at higher rates, the rules aim to ensure that tax is paid at a rate similar to what would apply if the income remained in the adult’s name.

Understanding what counts as unearned income is key to avoiding surprises. Common sources include:

• Bank account interest: Even small balances can generate enough interest to trigger the Kiddie Tax if left unchecked over a year.
• Dividends from shares: If you’ve helped your child invest in the share market, any dividends paid are considered unearned income.
• Trust distributions: Family trusts sometimes distribute income to children. These distributions are subject to the Kiddie Tax rules.
• Capital gains: If a child sells investments for a profit, the gain is also considered unearned income.

With more young Australians using investing apps and opening savings accounts, it’s easier than ever for children to earn unearned income. Here are some practical steps parents can take:

1. Track Your Child’s Investment Income

Keep a record of all interest, dividends, and trust distributions received in your child’s name. Even small amounts can add up over the financial year and push your child over the tax-free threshold.

2. Understand the Impact of Trusts

Family trusts can be useful for managing family wealth, but distributing income to minors can trigger the Kiddie Tax. Ensure any trust distributions to children are legitimate and properly documented. If you’re unsure, seek professional advice.

3. Encourage Earned Income

Income from part-time jobs or small business ventures is taxed at normal rates for children, not at the higher Kiddie Tax rates. Encouraging your child to earn their own money can help them build financial skills without incurring punitive tax rates.

4. Stay Informed About Policy Changes

Tax rules can change, and compliance checks on trust distributions to minors have increased in recent years. Make sure you’re aware of any updates that could affect your family’s situation.

5. Lodge Tax Returns When Required

If your child’s unearned income exceeds the tax-free threshold, a tax return may be required in their name. Failing to report this income can result in penalties or interest charges.

Suppose a 14-year-old earns $1,000 in bank interest and $600 in dividends in a financial year. The total unearned income is $1,600. Only the first portion is tax-free, with the remainder taxed at higher rates. Even though the amounts involved may seem modest, the tax bill can be significant compared to the income earned.

Australia’s Kiddie Tax rules are not intended to discourage financial education or investing for young people. However, they do require families to be vigilant. As digital investing platforms and youth-focused financial products become more popular, more families are likely to encounter these rules.

By understanding how the Kiddie Tax works and keeping good records, parents can help their children build wealth and financial skills—while avoiding unexpected tax consequences.

• The Kiddie Tax applies to most unearned income for children under 18 who are not in full-time work.
• Only a small amount of unearned income is tax-free; income above this is taxed at higher rates.
• Common sources of unearned income include bank interest, dividends, trust distributions, and capital gains.
• Encourage earned income, which is taxed at normal rates for children.
• Stay informed about any changes to tax rules and keep accurate records.

For more on building financial skills for your family, visit our finance section.