You need to file a tax return if you made £1,000 or more in revenue. That’s true even if your expenses were higher than that. If this is the case you can easily report a loss and this can be used against profits you make in the future with Taxd.
General expenses could be; the cost of equipment needed to perform your role, travelling to client sites, online subscriptions or costs of equipment needed to perform your role, premises costs, wages, professional fees, and marketing.
But that’s not all. There may be many more specific expenses depending on what you do, which Taxd will be sure to ask you about and tailor questions based on your role.