Income Tax Return Deadline Dates 2024

The deadlines for the 2023 Self Assessment Income Tax returns are given below.

The online (ROS) extended pay and file deadline for 2023 income tax returns and for beneficiaries liable to Capital Acquisitions Tax (CAT) is expected to be 31st October 2024 for paper tax returns and 15th November 2024 For ROS Filers .

PAYE customers who are required by Revenue to file a Form 12 for 2023 and who opt to use the online version, the deadline date is expected to be 15th November 2024.

If you are doing a paper-based Form 11  Tax return for the year ending 31st Dec 2023 – it is expected to with  Revenue by the 31st October 2024


There will be late filing penalties if tax returns are not made in time.

If you file your Income-tax return late, a surcharge may be added to your tax due, as follows:

  • If you miss the deadline of 31/10/2024 (or 16/11/2024 for ROS customers) and you file your tax return before 31st December 2024, there is an extra penalty of 5% of the tax due (maximum of €12,695)
  • If you file your 2023 tax return after 31st December 2024, there is an extra penalty of 10% of the tax due (maximum of €63,485),

Capital Gains Tax

CGT Deadline is 15 Dec 2024. Payment is due on gains arising between 1 January 2024 to 30 November 2024. Use CGT Payslip A

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