• April 06 - First day of the new tax year.
• April 19 - Deadline for postal payments to reach HMRC for outstanding paperClass 1 NICs and PAYE tax for the                 tax year ending 5 April 2012.
• April 06 - Last date for electronic payments to clear HMRC’s bank account for outstanding Class 1 NICs and Deadline for second Self-Assessment payment on account for the tax year ended 5 April 2012.PAYE for year ending 5 April 2012.

• May 19 - Last date for filing Employer Annual Returns (P14s and P35) for the tax year ending 5 April 2012.
• May 31 - Deadline for giving P60 for 2011-12 employees who were working for you on 5 April 2012.

• June 30 - End of CT61 quarterly period
• June 30 - Yearly adjustment for VAT partial exemption calculations (March VAT year end).

• July 05 - Deadline for agreeing PAYE Settlement Agreements for 2011-12 (if any).
• July 06 - Last date for filing form 42 or other relevant forms to report share-related benefits provided to Deadline                 for second Self-Assessment payment on account for the tax year ended 5 April 2012.employees.
• July 06 - Last date for supporting forms P9D, P11D, P11D(b), or substitutes for year ending 5 April 2012.
• July 06 - Deadline to submit forms P9D and P11D to employees.
• July 19 - Final date for postal payments to reach HMRC Accounts Office for outstanding Class 1A NICs for year                 ending 5 April 2012.
• July 22 - Last date for electronic payments to clear in HMRC’s bank account for outstanding Class 1A NICs for                 the tax year ending 5 April 2012.
• July 31 - Deadline for second Self-Assessment payment on account for the tax year ended 5 April 2012.

• August 02 - Deadline for submitting P46 (Car) for quarter to 5 July.
• August 31 - VAT partial exemption calculations yearly adjustment.

• September 02 - PAYE, CIS deductions and Student loan are due for month to 5th September 2012.
• September 30 - Last day of CT61 quarterly period.

October 05 - Last date to inform changeability for Income Tax/ Capital Gains Tax for 2011-12, if not registered for Self-Assessment.

• October 05 - Last date to inform chargeability for Income Tax/ Capital Gains Tax for 2011-12, if not registered for                        Self-Assessment.
• October 31 - Final date for Self-Assessment tax returnspaper submission for the tax year ended 5 April 2012.

• November 01 - £100 penalty if 2012 paper Tax Return not yet filed. Additional penalties may apply for further                             delay.
• November 02 - Filing date of P46 (Car) for quarter to 5 October.

December 30 - Deadline for Self-Assessment tax returns online submissionfor tax year ended 5 April 2012 for                              HMRC to collect tax through clients’ PAYE codes, where they owe less than £3,000.

• January 30 - Final Date for Self-Assessment tax returnsonline submission for tax year ended 5 April 2012.
• January 30 - Last date for making first Self-Assessment payment on account for tax year ended 5 April 2013.
• January 30 - Deadline for making Self-Assessment ‘balancing payments’ for tax year ended 5 April 2012.

• January 30 - Final Date for Self-Assessment tax returnsonline submission for tax year ended 5 April 2012.
• January 30 - Last date for making first Self-Assessment payment on account for tax year ended 5 April 2013.
• January 30 - Deadline for making Self-Assessment ‘balancing payments’ for tax year ended 5 April 2012.

• February 01 - £100 penalty charged if 2012 Tax Return is not yet filed online.
• February 02 - Final date for filing P46(car) for employees, whose car/fuel benefits changed during the quarter to                          5th January 2013
• February 14 - Deadline to request NIC deferment for 2012/13.

• February 01 - £100 penalty charged if 2012 Tax Return is not yet filed online.
• February 02 - Final date for filing P46(car) for employees, whose car/fuel benefits changed during the quarter to                          5th January 2013
• February 14 - Deadline to request NIC deferment for 2012/13.

• March 02 - Final day to pay any outstanding balance of 2011/12 tax and Class 4 NICs to avoid the 5% late                     payment penalty.
• March 31 - Final date of Corporation Tax financial year.
• March 31 - Company Tax Return Form CT600 filing date for the period ending 31 March 2012.
• March 31 - Last date of CT61 quarterly period.
• March 31 - Last minute planning for tax year 2012/13.