For 2025, the first $1,350 of unearned income is tax-free and income over $1,350 is subject to the child's tax rate, up from $1,300 of unearned income tax-free and income over $1,300 subject to taxation in 2024. An individual can contribute up to $19,000 for the 2025 tax year (up from $18,000 for 2024) without incurring the federal gift tax.