Pillar Two sets a global minimum effective tax rate for large multinational groups. Hong Kong's regime applies to groups above the revenue threshold, and the initial obligation is notification rather than full computation. The first full top-up tax return then follows: due 30 June 2027 for a group in its first transition year, and 31 March 2027 where the group was already in scope.
What the board should be asking
- Are we in scope by revenue threshold, and for which fiscal year?
- Who owns the group entity data that the notification depends on?
- Does our governance and control documentation support the figures?
What this means for you
Pillar Two lands on tax, but the evidence it needs is corporate: group structure, entity data and controlled transactions. If nobody owns that data set, the filing becomes a scramble each year.
Sources
Inland Revenue Department, BEPS 2.0 — ird.gov.hk
IRD Pillar Two Portal, phase 1 launched 19 January 2026