Tax in Oman

Who is the tax authority and where do filings live?

Oman's Tax Authority, under the Ministry of Finance, administers Oman's tax system [SC1]. Substantive law: Income Tax Law (Royal Decree 28/2009 with successive amendments), VAT Law (Royal Decree 121/2020 effective 16 April 2021), Personal Income Tax Law announced 2024 effective from 2028 (Oman first-mover GCC peer for individual PIT). Oman is a GCC member.

What is the tax year and when are returns due?

Corporate fiscal years align with the calendar year (with limited exception). Annual corporate returns due 4 months after fiscal year-end [SC1]. VAT quarterly under the standard regime. From 2028, personal income tax returns expected.

Who is an Omani tax resident?

Oman has no general individual income tax currently — residency does not trigger personal-tax obligations. Corporate residency by incorporation or place of effective management [SC2]. The 2028 PIT framework will introduce individual residency criteria.

What are the personal income tax rates?

No individual income tax framework as of 2024 — personal income faces 0 percent at individual level [SC1]. The 2028-effective Personal Income Tax Law (announced 2024) targets individuals earning above OMR 30,000 annually at 5 percent flat — Oman would be the first GCC peer to implement individual PIT, marking a regional first. Mandatory Public Authority for Social Insurance (PASI) contributions for Omani nationals only.

How does Oman's corporate tax work?

CIT 15 percent flat (raised from 12 percent under successive amendments) [SC2]. Reduced 3 percent for SMEs (Establishment of SMEs Law). Petroleum Income Tax 55 percent on oil/gas-sector. Withholding on dividends to non-residents 10 percent (treaty rates apply). Pillar Two pending under GCC-coordinated framework. Tax losses 5 years.

What about VAT?

VAT 5 percent under GCC-harmonised framework (Royal Decree 121/2020 effective 16 April 2021) [SC3]. Zero-rated on exports. Registration above OMR 38,500 turnover.

How are cryptoassets taxed?

Central Bank of Oman advisory: cryptoassets not legal tender [SC2]. No individual income tax means individual crypto gains 0 percent currently (subject to 2028 PIT framework expansion). Corporate crypto activity subject to 15 percent CIT.

What is the treaty network and what are the audit triggers?

Oman has approximately 35 active double tax treaties [SC4]. MLI signed 2020. Standard SOL framework applies.

What are the common penalties and pitfalls for foreigners?

Penalty framework: late filings, failure to file, incorrect declarations [SC5]. Common pitfalls: (1) 2028-effective PIT framework first GCC peer individual income tax — practitioners should track legislative progression toward 2028; (2) PIT threshold OMR 30,000 catches high-earning expats; (3) CIT 15 percent (raised from 12 percent); (4) Pillar Two pending under GCC-coordinated framework; (5) ~35 DTCs + MLI signed 2020; (6) VAT 5 percent under GCC framework; (7) Petroleum Income Tax 55 percent; (8) PASI social-insurance only for Omani nationals; (9) GCC Excise framework on tobacco/energy/sweetened drinks; (10) post-2024 reform announcements signal Oman fiscal modernisation.