The deadlines (identical federally)
Pilot (voluntary)1 July 2026
Mandatory — large businesses (revenue ≥ AED 50m)1 January 2027
Mandatory — all other tax-registered businesses1 July 2027
Scope of the mandateB2B and B2G only — B2C is currently excluded (Ministerial Decision 243/2025)
Context for Abu Dhabi
The federal capital, with a heavy concentration of government and semi-government entities, energy and large industry — B2G invoicing is more common here than anywhere else, and those counterparties tend to move on compliance early.
Notable free zones
- ADGM (Abu Dhabi Global Market)
- KIZAD
- Masdar City
- twofour54
Free-zone businesses are not automatically exempt — any business issuing B2B or B2G invoices is in scope regardless of whether it sits in a free zone.
This page is general guidance for businesses in Abu Dhabi and does not replace tax advice specific to your business. The mandate is federal — the deadlines and scope are identical across all seven emirates.
Last updated: 2026-08-30 — our methodology
Last updated: 2026-08-30 — our methodology