Oman's VAT system, in place since April 2021, picked up its most significant change yet in 2026: a national e-invoicing mandate that, unlike its Gulf neighbors, brings every type of transaction into scope at once. Around that central development sit a tourist VAT refund scheme still being finalized, a tax authority reporting genuinely strong revenue growth while ruling out any rate change, and a 50-year tax incentive bet on a new international financial hub.

Fawtara: broader in scope than Saudi's or the UAE's version

The Oman Tax Authority (OTA) became an official Peppol Authority in January 2026, formalizing the technical backbone of Fawtara, Oman's national e-invoicing system. Like the UAE, Oman has adopted a Peppol-based five-corner model — invoice moves from supplier to the supplier's accredited service provider, to the buyer's ASP, to the buyer, with tax data reported to the OTA in parallel. Where Oman diverges from both of its neighbors is scope: Fawtara is built to cover B2B, B2G, and B2C transactions together from the start, rather than phasing consumer transactions in later the way the UAE has chosen to. For B2C specifically, the model leans toward e-reporting — invoices must reach the service provider within 24 hours of issuance — rather than the same real-time clearance applied to B2B.

The rollout itself is staged by taxpayer size. Phase 1 begins August 2026, covering roughly the 100 to 150 largest VAT-registered taxpayers (sources differ on the exact count, though OTA has already notified the businesses involved). Phase 2 extends the mandate to all large VAT-registered companies from February 2027. Phase 3, covering all remaining VAT-registered businesses including SMEs, follows in August 2027, with government entities brought in by 2028. Technical specifications have continued to evolve through the year — the April 2026 PINT-OM specification actually dropped QR codes, digital signatures, and invoice hashes from mandatory fields, having included them in the November 2025 draft, a rare instance of a requirement loosening rather than tightening as a mandate nears its start date.

A tourist VAT refund scheme, still being finalized

Separately, Oman's Tax Authority announced in early February 2026 that it's working toward a VAT refund scheme for tourists, allowing non-resident visitors to reclaim VAT paid on eligible retail purchases before departure. As of the Tax Authority's own public statements, this remains contingent on finalizing cost and percentage terms with the service providers who would operate the scheme — it has not been confirmed as operational. The absence of such a scheme has put Omani retailers at a disadvantage against neighbors like the UAE and Saudi Arabia, which already offer tourist VAT refunds; closing that gap is the explicit rationale behind the plan.

No rate change, and a tax base that's visibly growing

At the same February briefing, the Tax Authority confirmed Oman has no current plans to raise, lower, or abolish its 5% VAT rate, framing any future rate decision as a government-level call rather than something the Authority itself would initiate. The same briefing reported substantial growth in the underlying tax base: 2025 revenue of RO 658 million from income tax, RO 631 million from VAT, and RO 84 million from excise tax, alongside registrant growth since 2021 of 88% for income tax, 120% for VAT, and 222% for excise tax.

A 50-year tax bet on a new financial center

Royal Decree No. 8/2026, effective 13 January 2026, established the International Financial Centre of Oman (IFC Oman) in Madinat Al Irfan, Muscat, as an independent jurisdiction with its own regulatory and legal framework based on English common law. Eligible businesses operating within it can receive income tax and VAT exemptions for up to 50 years, though the detailed eligibility criteria and implementing regulations have yet to be published. The Centre is framed as a pillar of Oman's 2040 diversification strategy, aimed at attracting financial institutions and investment managers who'd otherwise locate elsewhere in the Gulf.

Smaller, mostly on the customs side

Oman Customs will require imported goods to be palletized from 15 July 2026 for land border crossings, extending to air and sea ports from 15 September 2026, under Article 44 of the GCC Unified Customs Law — with practical exemptions for cargo that can't reasonably be palletized, like liquids, pipes, and stone blocks. Separately, the OTA issued clarifications this year on time limits for customs duty refund claims and on how a 1.2% deduction factors into VAT calculations — narrower procedural points rather than structural changes.

What it adds up to

Fawtara is the thread that actually changes how Oman's tax system functions day to day, and its decision to include B2C from the outset is a more ambitious starting position than either Saudi Arabia or the UAE took on their own e-invoicing rollouts — both deferred consumer transactions to later phases or excluded them altogether. Everything else this year reads as Oman managing its existing 5% VAT rate rather than reconsidering it: a tourist refund scheme to close a competitive gap, explicit reassurance that the rate itself isn't moving, and a major incentive program built around exemptions rather than new collection. The contrast is worth sitting with — Oman is simultaneously building the most comprehensive transaction-visibility infrastructure in the GCC and the most generous tax-exemption offer of the year, aimed at two entirely different audiences: domestic compliance on one side, foreign capital on the other.