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Below are some key financial dates and deadlines for August 2017

1 August 2017

  • Payment of corporation tax liabilities for periods ended 31 October 2016 if not liable to pay by instalments.
  • Outstanding 2015-16 self-assessment tax returns now subject to a penalty of £300 or 5% of tax due, whichever is higher.

2 August 2017

  • Filing date for form P46(Car) for quarter ended 5 July 2017.

5 August 2017

  • First quarterly report by employment intermediaries for period 6 April to 5 July 2017.

7 August 2017

  • Due date for VAT return and payment for 30 June 2017 quarter (electronic payment).

14 August 2017

  • Quarterly corporation tax instalment payment for large companies.
  • Monthly EC sales list if paper returns used.

19 August 2017

  • File monthly CIS return.
  • Pay PAYE/CIS for month ended 5 August 2017 if by cheque.

21 August 2017

  • Online monthly EC sales list.
  • Intrastat — supplementary declarations for July 2016.

22 August 2017

  • PAYE/NIC/student loan payments if paid online.

31 August 2017

  • Companies House should have received accounts of private companies with 30 November 2016 year end.
  • Companies House should have received accounts of public limited companies with 28 February 2017 year end.
  • Corporation tax self-assessment returns for accounting periods ended 31 August 2016.
  • Annual adjustment for VAT partial exemption claims, May year end.
  • Submit PAYE settlement agreement figures to HMRC to enable final income tax and National Insurance liabilities to be advised for 19 October 2017 deadline.