Self Assessment: Key Dates 2010/11
31 July 2010
Second payment on account for 2009/10.
5 October 2010
Deadline for notifying HMRC of new sources of income if no tax return has been issued for 2009/10.
31 October 2010
Deadline for submission of 2009/10 non-electronic returns. Also, the deadline for submission of 2009/10 returns requiring HMRC calculation and where the taxpayer wants a balancing payment (below £2,000) collected through their 2011/12 PAYE code.
31 January 2011
Deadline for filing electronic tax returns for 2009/10. Balancing payment due for 2009/10. First payment on account due for 2010/11.

