Tax calendar

The red text indicates an entry relevant to companies and employers, black refers to personal tax, and bold indicates an important item.

Click on an item to find out more detail of how it may affect you.

If you would like to receive email reminders before these key tax dates from our taxREMINDER system, then click here to register on our website. If you have already registered and would like to change your taxREMINDER options then click to log on.

March 2025

Is this relevant to you?

This deadline is relevant to individuals who need to complete a self assessment tax return and make direct payments to HMRC in respect of their income tax, Class 4 or voluntary NICs, capital gains tax or High Income Child Benefit Charge liabilities.

The balance of any outstanding income tax, Classes 2 and 4 National Insurance, capital gains tax and High Income Child Benefit Charge for the year ended 5th April 2024 was due for payment by 31st January 2025. Where the payment is made late interest will be charged. On 3 March 2025 a late payment penalty of 5% will be added to the outstanding liability.

If we have already dealt with this matter on your behalf you need take no action.

Is this relevant to you?

The final deadline of 5th April 2025 is relevant to individuals who have not considered year-end tax planning issues. These issues include:

  • utilising your annual capital gains tax exemption
  • utilising your annual inheritance tax exemption for gifts
  • utilising your annual Individual Savings Account investment limit (ISA)
  • making additional pension contributions for 2024/25.

Please get in touch if you would like any further advice on these or any other issues.

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