1127 - If your business started after 5 April 2018
If your business started (or you started working for yourself) between 6 April 2018 and 5 April 2019, enter the appropriate date in this field.
You'll be taxable on any profits for the period beginning on the date you started working for yourself and ending on 5 April 2019.
If you haven't already registered for self-employment and Class 2 National Insurance contributions (NIC's), you must do so now. For more information about working for yourself.