April

1 April 

Financial year 2025 begins

5 April 

Tax year 2024–25 ends

Last date to register to payroll benefits in kind for 2025–26

6 April

Tax year 2025–26 begins

7 April

VAT returns and payments due for month or quarter ended 28 February 2025

14 April

Corporation tax instalment payments due for large companies as follows:

•  Year ended 31 December 2024 – instalment 4

•  Year ended 31 March 2025 – instalment 3

•  Year ended 30 June 2025 – instalment 2

• Year ended 30 September 2025 – instalment 1

Corporation tax instalment payments due for very large companies as follows:

•Year ended 30 April 2025 – instalment 4

•Year ended 31 July 2025 – instalment 3