The Gulf's Tax-Free Era Is Ending, Starting With Oman
Oman will become the first GCC country to introduce a personal income tax. Effective January 1, 2028, a 5% flat levy applies to worldwide net income above OMR 42,000, roughly $109,000 USD, for high earners. For most expats below that threshold, nothing changes. For those above it, this is the first time in Gulf history that FEIE-alone strategies stop being sufficient.
What the Law Actually Says
Rate: 5% flat on net income above the OMR 42,000 threshold.
Scope: Worldwide income for Omani tax residents above the threshold, not just Omani-sourced income.
Deductions: The law allows deductions for local housing costs, education fees for dependents, and healthcare expenses, which will reduce net taxable income below gross salary.
End of Service Gratuity: Oman will mandate local withholding tax on EOSG payouts under the 2028 law, on top of the existing US tax treatment of gratuities as fully taxable deferred compensation.