Construction Industry Scheme: monthly return due for period up to 5th of previous month.
Percentage of finance costs deductible from rental income reduces to 25%. Percentage of basic rate reduction is 75%.
End of CT61 quarterly period.
Deadline for first self-assessment payment on account for tax year ended 5 April 2018.
Deadline for online submission of self-assessment balancing payments for 2017/18 tax year.