12  January

Corporation tax third quarterly instalment payment for accounting periods ended 31 Dec 2016

19 January

PAYE cheque payments for the month ended 5 Jan (22 Jan for electronic payments)

19 January           

Deadline for filing online CIS return for month ended 5 Jan

31 January        

Deadline for filing online personal tax self-assessment returns for 2015/16 to avoid a possible late filing penalty and extension of the enquiry window

31 January           

Filing amended personal tax self-assessment returns for 2015/16

31 January