Any child who is at School and under 18 doesn’t have to pay tax if they earn under $2340 per year ($45 per week). See the IRD’s Children’s Tax exemption information here

We don’t let any child do more than about 4 hours per week of work, so generally they will never have to worry about tax.

If a child does other paid work as well as StudentForce, and is earning more than $45 every week, they will need to contact Inland Revenue and take the steps needed to track and pay tax.