Our online tax calendar shows the key tax deadlines. Register to receive our email tax reminders (based on the dates in this calendar) and never miss another tax deadline. Find out more at our Tax Calendar - Tax calendar Warwickshire : Michael Harwood & Co If you would like to receive email reminders before these key tax dates from our tax REMINDER system, then click here to register on our website. If you have already registered and would like to change your tax REMINDER options then click to log on.