What is a QDMTT?
Educational overview of Qualified Domestic Minimum Top-up Tax (QDMTT) — how domestic minimum tax can interact with GloBE charging rules.
Educational overview
A Qualified Domestic Minimum Top-up Tax (QDMTT) is a domestic minimum tax designed so that top-up tax is collected locally in a way the Inclusive Framework can recognize as “qualified” under the GloBE architecture.
In Model Rules / Commentary framing, when a QDMTT applies and is respected, it can reduce residual top-up that would otherwise be collected under the Income Inclusion Rule (IIR) or Undertaxed Profits Rule (UTPR) for that jurisdiction’s low-taxed income. Exact outcomes depend on domestic statute and qualification status — not on marketing summaries.
Why it matters operationally
Groups typically track: (1) whether a jurisdiction has enacted a domestic minimum top-up tax, (2) whether it is treated as qualified for GloBE purposes, (3) how it interacts with Safe Harbours and elections, and (4) local filing or payment mechanics.
Enactment and administration change over time. Mirentra’s Jurisdiction Tracker is structured to hold verified regulatory facts when available; fields remain unpublished until reviewed. Do not treat any software status label as a legal determination.
Primary sources (start here)
Read the GloBE Model Rules and Consolidated Commentary for the architectural role of domestic minimum top-up taxes, then confirm the specific jurisdiction’s legislation and tax authority guidance. Use the OECD primary links in the article sidebar; do not rely on secondary blogs for qualification conclusions.