hi I've just been reminded I've got to the end of the month to complete my self assessment tax return. I have the figures or income and outgoings but other than outgoings I have no idea what else I can claim for. gov website is a bit tricky for me to understand I'm a bench joinery/carpenter so I have tools already, van, work from home in my workshop use a room for computer. but have no idea how I witless out the amounts I can claim.
any websites or guidance is much appreciated