May 2026        

1 May

Corporation tax due for accounting periods ended 31 July 2025 where not payable by instalments

New VAT fuel scale charge rate for VAT periods beginning on or after this date

3 May  

(deadline falls on a weekend: plan accordingly)   

P46 (car) printed forms due for the quarter ended 5 April 2026 (where benefits not payrolled)

5 May

(note that Monday 4 May is a public holiday throughout UK: plan accordingly)