Tax Diary April/May 2025

1 April 2025 – Due date for corporation tax due for the year ended 30 June 2024.

19 April 2025 – PAYE and NIC deductions due for month ended 5 April 2025. (If you pay your tax electronically the due date is 22 April 2025).

19 April 2025 – Filing deadline for the CIS300 monthly return for the month ended 5 April 2025.

19 April 2025 – CIS tax deducted for the month ended 5 April 2025 is payable by today.

30 April 2025 – 2023-24 tax returns filed after this date will be subject to an additional £10 per day late filing penalty for a maximum of 90 days.

1 May 2025 – Due date for corporation tax due for the year ended 30 July 2024.

19 May 2025 – PAYE and NIC deductions due for month ended 5 May 2025. (If you pay your tax electronically the due date is 22 May 2025).

19 May 2025 – Filing deadline for the CIS300 monthly return for the month ended 5 May 2025.

19 May 2025 – CIS tax deducted for the month ended 5 May 2025 is payable by today.

31 May 2025 – Ensure all employees have been given their P60s for the 2024/25 tax year.

Source: HM Revenue & Customs | 06-03-2025

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