1 December 2015 – Due date for Corporation Tax due for the year ended 28 February 2015.
19 December 2015 – PAYE and NIC deductions due for month ended 5 December 2015. (If you pay your tax electronically the due date is 22 December 2015.)
19 December 2015 – Filing deadline for the CIS300 monthly return for the month ended 5 December 2015.
19 December 2015 – CIS tax deducted for the month ended 5 December 2015 is payable by today.
30 December 2015 – Deadline for filing 2014-15 Self Assessment online to include a claim for under payments (under £3,000) be collected via tax code in 2016-17.
1 January 2016 – Due date for Corporation Tax due for the year ended 31 March 2015.
19 January 2016 – PAYE and NIC deductions due for month ended 5 January 2016. (If you pay your tax electronically the due date is 22 January 2016.)
19 January 2016 – Filing deadline for the CIS300 monthly return for the month ended 5 January 2016.
19 January 2016 – CIS tax deducted for the month ended 5 January 2016 is payable by today.
31 January 2016 – Last day to file 2014-15 Self Assessment tax returns online.
31 January 2016 – Balance of Self Assessment tax owing for 2014-15 due to be settled today. Also first payment on account for 2015-16 due today.
Source: New feed.