2 March 2014 Income tax self assessment
5% penalty imposed on 2012/13 income tax, Capital Gains Tax and Class 4 NICs liabilities not paid by today
19 March 2014 Budget Day
31 March 2014 Corporation tax self assessment
Deadline for filing the corporation tax return with HMRC for accounting periods ended 31 March 2013
31 March 2014 Accounts
Deadline for filing accounts with a financial year end of 30 June 2013 with Companies House.