Corporation Tax

Corporation tax payment due for year end 31 July 2019, for those companies not liable to pay their liability by instalments.

End of corporation tax financial year.

Filing deadline for corporation tax return self-assessment form CT600 for period ended 31 March 2019 to be submitted to HMRC.

Deadline for filing your company tax return is 12 months after your accounting period for corporation tax ends.

End of CT61 quarterly period.

Research and development expenditure credit changes from 12% to 13%.