Corporation tax due date (not for instalment payment) for companies with year ended 28th February 2017.
Due date for October VAT returns (electronic payments).
HMRC filing deadline for Corporation Tax Return Form CT600 for period ended 31st December 2016.
Companies House filing deadline for private companies with a year ended 31st March 2017.
End of quarter period for CT61 – Return of Income Tax for Company payments.
Deadline for paper monthly return filing for EC Sales List.