01
Document overview
The Tax Authority's interactive service returns the assigned onboarding period for a complete VAT identification number.
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Scope and exclusions
Applies to
For an entity-specific check of the implementation period assigned to a VAT-registered person.
Limitations and exclusions
The result depends on the VATIN entered and the authority's live data. It does not replace legislation, a notice, Tax Authority confirmation or a voluntary-onboarding check.
04
Official source
Oman Tax Authority · E-invoicing rollout checking · live service · Oman Tax Authority
September 13, 2026
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