They do in NZ as well, but there are times when you need to pay additional taxes for some reason. E.g.earn extra income that isn't through an employer you need

They do in NZ as well, but there are times when you need to pay additional taxes for some reason. E.g.earn extra income that isn't through an employer you need to declare and pay taxes on. I guess it's for those cases you use the Pay Taxes option in my banks app. I've used it a few times and it's really useful