Submitting a Tax Return for Self Employed workers uses the self assessment system put in place by HMRC to collect income tax in the UK. Tax is usually deducted automatically from wages, pensions and savings. People and businesses with other income must report it in a tax return. By doing this, it could also help you to get some money back in your pocket in the form of a self-employed rebate. also known as self employed tax refunds. To find out if you need to file a HMRC tax return, contact us.