WHAT IS A SELF ASSESMENT TAX RETURN? You will need to register as self-employed, along with a complete self-assessment tax return for the tax officer so the tax man or in this case HMRC can figure out how much taxes you need to pay and also depending on how much taxes you have been already paying. Self-Assessment is basically a system HMRC uses to collect taxes. WHEN DO I NEED TO REGISTER FOR SELF-ASSESSMENT ? According to the taxation laws, even self-employed individuals or freelancers need to file for tax returns and for that those individuals need to register for self-assessment via HMRC website. After that you are able to file paper work related to taxation. it is essential to register for an online account on the HMRC website by…