Hi! A few months back I started buying parts online in bulk and selling them locally, and it's got quite good business. However I was wondering about tax on the money I get - will it all count as income? I normally deposit whatever money I make at the end of the week, and keep good tabs on what money I spend and make on selling stuff, which I understand is good practice for a business. I've looked at this salary calculator site (https://www.income-tax.co.uk/)and apparently with my part time job I will be going over the personal allowance amount. Should I be worrying about this? Hope someone can advise