Important dates

March 2011
Saturday 19th	PAYE and NIC due for the month ended 5th March 2011.
April 2011
Wednesday 6th	Start of 2010/2011 tax year.
Thursday 14th	Deadline for submission of forms CT61 and payment of any associated income tax for the quarter ended 31st March 2011.
Tuesday 19th	PAYE and NIC due for the month ended 5th April 2011, including any due on deemed salaries under the IR35 rules. Quarterly PAYE and NIC due for the quarter ended 5th April 2011 for qualifying small employers.
May 2011
Tuesday 3rd	Submission date for forms P46 (Car) for changes during the quarter ended 5th April 2011 to car and fuel benefits provided to employees.
Thursday 19th	PAYE and NIC due for the month ended 5th May 2011. Final submission date for employers' year end returns (forms P35 and P14) for the year ended 5th April 2011. Final submission date for contractors' year end returns (form CIS 36) for the year ended 5th April 2011.
Tuesday 31st	Employers to provide employees with forms P60 (year end summaries) for the year ended 5th April 2011.
June 2011
Sunday 19th	PAYE and NIC due for the month ended 5th June 2011.
July 2011
Tuesday 5th	Final date for agreement of 2010/2011 PAYE Settlement Agreements.
Wednesday 6th	Final submission date for returns of expenses and benefits (forms P11D and P9D) for the year ended 5th April 2011. Relevant employees to be provided with copies of forms P11D and P9D.
Wednesday 6th	Submission date for annual share scheme returns (form 42) for the year ended 5th April 2011.
Thursday 14th	Deadline for submission of forms CT61 and payment of any associated income tax for the quarter ended 30th June 2011.
Tuesday 19th	PAYE and NIC due for the month ended 5th July 2010. Quarterly PAYE and NIC due for the quarter ended 5th July 2011 for qualifying small employers. Due date for payment of Class 1A NIC arising on relevant benefits in kind for the year ended 5th April 2011.
Sunday 31st	Second payment on account due in respect of 2010/2011 personal tax. Second penalty of £100 applied where 2009 self-assessment tax return has not yet been submitted. Second 5% surcharge applied where 2009/2010 tax has not been settled in full by this date.