HMRC filing deadline for Corporation Tax Return Form CT600 for period ended 31st March 2017.
Companies House filing deadline for private companies with a year ended 30th June 2017.
End of quarter period for CT61 – Return of Income Tax for Company payments.
Monthly PAYE / NIC due date if payment is made electronically.
Deadline for online monthly return filing for EC Sales List.
Monthly PAYE / NIC due date if payment is made by cheque.
Deadline for paper monthly return filing for EC Sales List.