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GCC Tax & Policy Calendar
Future-dated tax implementation milestones, official compliance deadlines and announced policy targets—separated by legal status so a proposal is never presented as enacted law.
Only reviewed future milestones appear in the results. You can select any GCC jurisdiction; an empty result does not mean that no change will occur. Dates are never inferred from rumours, market commentary or unpublished expectations.
| Date | Jurisdiction | Topic | Status | Milestone | Who it affects | Source |
|---|---|---|---|---|---|---|
| 2 Jan 2027Effective date | Saudi Arabia | Investment policy | Enacted | New Government Tenders and Procurement Law enters into force Article 101 of the new law provides that it takes effect 120 days after its 4 September 2026 publication in the Official Gazette. | Government contractors, bidders, suppliers, investors and businesses affected by procurement or local-content requirements. | Saudi Official Gazette Government Tenders and Procurement Law |
| 1 Feb 2027Compliance deadline | Saudi Arabia | E-invoicing | Official rollout | Wave 25 taxpayers must integrate with the Fatoora platform ZATCA's twenty-fifth Integration Phase wave covers taxpayers whose VAT-subject revenues exceeded SAR 187,500 during 2022, 2023, 2024 or 2025. | Taxpayers notified by ZATCA as part of Wave 25 of the Integration Phase. | Zakat, Tax and Customs Authority ZATCA Wave 25 announcement |
Calendar methodology
Dates with legal context, not just dates
Public sources only.
Entries are tied to official ministries, tax authorities or other public bodies. Secondary commentary is not used as the evidentiary source for a calendar row.
Status matters.
Effective dates, compliance deadlines, official rollout dates and target years are labelled separately. Proposed measures remain visibly proposed until the public legal record changes.
No forced symmetry.
The calendar does not manufacture one item per GCC country. Coverage expands when a future-dated public milestone is verified and reviewed.