April 2017
6 First day of new tax year.
19 Deadline for postal payments to reach HMRC Accounts Office for any outstanding non-electronic PAYE tax and Class 1 NICs for the tax year ending 5 April 2017.
22 Deadline for electronic payments to be cleared in HMRC’s bank account for any outstanding PAYE and Class 1 NICs for the tax year ending 5 April 2017.
May 2017
31 Last date for giving a form P60 for 2016-17 to each relevant employee who was working for you on 5 April 2017.
June 2017
No key deadlines for NICs, PAYE or Self Assessment.
July 2017
5 Last date for agreeing PAYE Settlement Agreements for 2016-17 (if any).
6 Deadline for submitting form 42 or other relevant forms to report share-related benefits provided to employees.
6 Deadline for filing forms P9D, P11D, P11D(b), or substitutes for the tax year ending 5 April 2017.
6 Last date to give forms P9D and P11D to relevant employees.
19 Deadline for postal payments to reach HMRC Accounts Office for any outstanding Class 1A NICs for the tax year ending 5 April 2017.
22 Final date for electronic payments to be cleared in HMRC’s bank account for any outstanding Class 1A NICs for the tax year ending 5 April 2017.
31 Deadline for second Self Assessment payment on account for tax year ended 5 April 2017.
August 2017
No key deadlines for NICs, PAYE or Self Assessment.
September 2017
No key deadlines for NICs, PAYE or Self Assessment.
October 2017
5 Deadline to notify chargeability for Income Tax/Capital Gains Tax for 2016-17 if not registered for Self Assessment. Complete form CWF1 for self-employment or form SA1 for non self-employed income, or form SA401 for partners.
31 Midnight deadline for paper submission of Self Assessment tax returns for tax year ended 5April 2017 to be received by HMRC.
November 2017
No key deadlines for NICs, PAYE or Self Assessment.
December 2017
30 Deadline for online submission of Self Assessment tax returns for tax year ended 5 April 2017 for HMRC to collect tax through clients’ PAYE codes, where they owe less than £3,000.
January 2018
31 Deadline for online submission of Self Assessment tax returns for tax year ended 5 April 2017.
31 Deadline for paying Self Assessment ‘balancing payments’ for tax year ended 5 April 2017.
31 Deadline for first Self Assessment payment on account for tax year ended 5 April 2018.
February 2018
No key deadlines for NICs, PAYE or Self Assessment.
March 2018
No key deadlines for NICs, PAYE or Self Assessment.
