Usually, contractors using an umbrella company do not need to submit a personal tax return to HMRC because they receive PAYE and the tax and National Insurance Contributions (NICs) have already been made and recorded by your umbrella provider. However, you will be required to submit a tax return if you have an income of over £100,000, you have additional income (for example, from a rental property or investment) and if HMRC has personally requested you to do so.