What is Pillar Two?

What is the domestic top-up tax?

The Pillar Two rules include:

  • an Income Inclusion Rule (IIR)
  • an Undertaxed Profits Rule (UTPR)
  • and
  • a domestic top-up tax.

The domestic top-up tax allows jurisdictions to collect any top-up tax due from domestic entities before the application of IIR top-up tax or UTPR top-up tax. It is creditable against any IIR top-up tax. The IIR top-up tax or UTPR top-up tax may not apply to domestic entities if the domestic top-up tax jurisdiction is granted Safe Harbour status. Safe Harbour status is granted by the Organisation for Economic Co-operation and Development (OECD).

The OECD has published a central record of legislation with transitional qualified status. Ireland is listed as one of the jurisdictions whose tax legislation has secured transitional qualified status.

Ireland introduced a domestic top-up tax which came into effect for fiscal years commencing on, or after, 31 December 2023.

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