To help ensure important tax dates are not missed or incurring unneccessary penalties, we have included 3 different calendars for Self-assessment Taxpayers, Companies and Employers and Partners and Partnerships. Against each date, we have included brief overviews of events together with possible penalties for late filing or payment. Calendars can be viewed in List, Month and year view. In List view, you can print a list of dates in PDF format. Please click here to view our Tax Calendar.