Key Dates and Deadlines

Payment Dates
Income Tax (including Class 4 NIC)
31 July 2010 2009/10 second payment on account
31 January 2011 2009/10 balancing payment, and
2009/10 first payment on account
31 July 2011 2010/11 second payment on account
31 January 2012 2010/11 balancing payment, and
2011/12 first payment on account
Class 1A NICs
19 July 2010 2009/10 payment due
Capital Gains Tax
31 January 2011 2009/10 Capital Gains Tax
31 January 2012 2010/11 Capital Gains Tax
Corporation Tax
9 months and one day after the end of the accounting period
Inheritance Tax
6 months after the end of the month of death or chargeable transfer.
For chargeable lifetime transfers between 6 April and 30 September, due date is 30 April in the following year.
For chargeable lifetime transfers between 1 October and 5 April, due date is six months after the end of the month in which the transfer was made.
Latest Filing/Issuing Deadlines - 2009/10 PAYE Returns
6 July 2010 P9D, P11D and P11Db - also issue copies to employees
Form 42 (reporting of employment-related securities)
2010 Self Assessment Tax Return (SATR)
31 October 2010 Last filing date - SATR Paper Version
30 December 2010 SATR Online if outstanding tax (less than £2,000) to be included in 2011-12 PAYE code
31 January 2011 Last filing date - SATR Online