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Tax authority · 2026

Tax Authority, Oman: official website and filing deadline 2026

Hani · Founder & Tax Data Researcher · ArabTaxCalc
Short answer

The Tax Authority (OTA) collects corporate income tax, VAT and excise tax, plus personal income tax from 2028 in Oman. Its official website is tms.taxoman.gov.om. No personal income tax for 2025. Personal income tax starts on 1 January 2028 at 5% on annual income above 42,000 Omani rials (Royal Decree 56/2025). Company returns for 2025 are due by 30 April 2026.

NameTax Authority (OTA)
Tax Authority (Sultanate of Oman)
Official websitetms.taxoman.gov.om
What it collectsCorporate income tax, VAT and excise tax, plus personal income tax from 2028
Income tax on salariesNone on employees' salaries
Annual deadline for individualsNo personal income tax for 2025. Personal income tax starts on 1 January 2028 at 5% on annual income above 42,000 Omani rials (Royal Decree 56/2025). Company returns for 2025 are due by 30 April 2026

Last checked: 9 October 2026.

Frequently asked questions

What is the official website of the tax authority in Oman?

The official website is https://tms.taxoman.gov.om/portal/web/taxportal/home. Check the domain before you enter any details: some sites imitate tax authorities.

When is the tax return deadline in Oman?

No personal income tax for 2025. Personal income tax starts on 1 January 2028 at 5% on annual income above 42,000 Omani rials (Royal Decree 56/2025). Company returns for 2025 are due by 30 April 2026.

How much income tax is charged on salaries in Oman?

Oman does not tax employees' salaries.

Useful links

Oman salary calculatorTaxes in OmanTax authorities in every Arab country

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