Hi everyone! I was wondering how tax income works in the UK for sixth form students with part time jobs. 12,570 is personal allowance, so does that mean I'd pay income tax on the money I earn after the threshold, or income tax on all the money I've earned within the year? And does this process differ if I decide to let's say freelance online on a website like upwork or freelancer? Do they still count as part-time jobs?
Also what would be the best credit/debit card for a student under 18?