Depends on jurisdiction, I'm sure. In the US, kids taxes can be separate, but after a small exemption, they pay the parents rate on unearned income (investment

Depends on jurisdiction, I'm sure. In the US, kids taxes can be separate, but after a small exemption, they pay the parents rate on unearned income (investments, interest, etc). You have to have a pretty big balance before 3% apy gets past the exemption though.