CIS return

Construction Industry Scheme: monthly return due for period up to 5th of previous month.

Buy-to-let finance costs

Percentage of finance costs deductible from rental income reduces to 25%. Percentage of basic rate reduction is 75%.

CT61

End of CT61 quarterly period.

Corporation tax payment

Corporation tax payment due for year end 30 June 2018, for those companies not liable to pay their liability by instalments.