Oman VAT Guide: Rates, Registration & Compliance

What Is VAT in Oman and When Did It Come Into Effect?

Value Added Tax came into force in Oman on 16 April 2021, under Royal Decree No. 121/2020, making Oman the fourth Gulf Cooperation Council member state to implement VAT after Saudi Arabia, the UAE, and Bahrain. The Executive Regulations supporting the law were issued under Decision No. 53/2021 and have since been amended several times, most recently under Decision No. 81/2025, to refine specific provisions of the regime.

The Oman Tax Authority (OTA) administers, collects, and enforces VAT across the country. Businesses operating in Oman, whether resident or non-resident, need to understand how the registration thresholds, exemptions, and filing obligations apply to their specific activity, since Oman’s VAT system, while broadly aligned with the GCC Unified VAT Framework, has its own registration rules and compliance timelines.

What Is the Standard VAT Rate in Oman?

Oman applies a standard VAT rate of 5% on most goods and services, consistent with the rate first adopted by Saudi Arabia and the UAE when they introduced VAT in January 2018. This places Oman among the lowest VAT jurisdictions globally, where standard rates in many countries range from 10% to 25%.

Not all supplies are taxed at the standard rate. Some goods and services are specifically exempt from VAT, meaning no VAT is charged and no input VAT can be recovered on related costs. Others are zero-rated, meaning VAT is charged at 0% but the supplying business can still recover input VAT on related expenses. The distinction between exempt and zero-rated matters directly for a business’s ability to reclaim VAT paid on its own purchases.

Which Goods and Services Are Exempt From VAT in Oman?

Exempt supplies under Oman VAT law include a defined list of essential food items, such as fresh eggs, poultry, fish, meat, milk, fruits and vegetables, olive oil, coffee and tea, bread, sugar, nutritional products for children, salt, and bottled drinking water. Beyond food items, exempt categories include medical care, education, financial services, and certain real estate transactions.

Because exempt supplies do not allow input VAT recovery, a business dealing primarily in exempt goods or services generally cannot reclaim VAT paid on its own operating costs connected to those supplies, which is an important distinction from zero-rated treatment.

What Supplies Are Zero-Rated for VAT in Oman?

Zero-rated supplies under the Royal Decree include goods and services under suspended customs status per GCC unified customs law, land, sea, and air transportation of goods and passengers for commercial purposes, exports of goods and services, and the re-export of temporarily imported goods. Crude oil, natural gas, and oil derivatives are also zero-rated, along with vessels and aircraft designated for search and rescue operations by sea or air.

Other zero-rated categories include intra-GCC and international transportation of goods and passengers and related services, investment-grade gold, silver, and platinum, and medicines and medical equipment. Businesses supplying zero-rated goods or services can recover input VAT on related costs, which is the key practical advantage over exempt status.

Who Must Register for VAT in Oman?

Mandatory VAT registration applies to businesses whose total taxable supplies exceed OMR 38,500 in a rolling twelve-month period. Voluntary registration is available to businesses whose taxable supplies exceed OMR 19,250, which allows smaller or growing businesses to recover input VAT even before they reach the mandatory threshold.

Both thresholds are assessed on a rolling basis over the preceding twelve months rather than a fixed calendar year, which means a business needs to monitor its taxable supply volume on an ongoing basis rather than checking it only at year-end.

How Does VAT Registration Work for Non-Resident Businesses?

Non-resident businesses making taxable supplies in Oman must register for VAT regardless of turnover, with no minimum threshold applied. This includes foreign companies supplying digital or electronic services to customers in Oman, which are taxable at the standard 5% rate.

Non-resident businesses without a place of residence in Oman generally need to appoint an Oman-resident representative as part of the registration process. This differs meaningfully from the threshold-based registration that applies to resident businesses, and foreign companies entering the Omani market should account for this requirement early rather than assuming the same thresholds apply to them.

How Are VAT Returns Filed and When Are They Due?

VAT-registered businesses in Oman file returns quarterly through the OTA’s electronic services portal. Both the return and the associated payment are due within 30 days of the end of each quarter. Where the due date falls on a weekend or public holiday, the deadline extends to the next working day.

Businesses must maintain VAT-related records and documentation for 10 years from the end of the relevant tax period. The OTA is generally barred from assessing additional tax more than five years after the due date of a given tax period, which makes accurate contemporaneous record-keeping important both for compliance and for limiting long-term audit exposure.

What Penalties Apply for VAT Non-Compliance in Oman?

Late payment of VAT liability attracts additional tax at 1% per month or part of a month for as long as the amount remains unpaid. Late filing of a VAT return carries a separate administrative penalty ranging from OMR 500 to OMR 5,000, depending on the circumstances of the delay.

Beyond payment and filing deadlines, common areas of non-compliance include failing to register within the required timeframe, failing to maintain adequate records, and errors connected to invoicing requirements. Businesses that fail to register when required face registration-related penalties in addition to any VAT liability that accrued during the unregistered period.

How Does Oman’s VAT System Compare to the Rest of the GCC?

Saudi Arabia and the UAE were the first GCC states to introduce VAT, both implementing a 5% standard rate from 1 January 2018 under the GCC Unified VAT Framework. Oman followed in April 2021, after Bahrain, as the fourth member state to implement the tax. Each country’s tax authority, the Oman Tax Authority in Oman and the Federal Tax Authority in the UAE, administers its own VAT system independently, even though the underlying framework and standard rate are broadly aligned across the region.

Businesses operating across multiple GCC jurisdictions need to treat each country’s VAT system as a separate compliance obligation. Registration thresholds, filing deadlines, and penalty structures differ between Oman and the UAE even though both apply a 5% standard rate, which means a compliance approach designed for one jurisdiction cannot simply be copied into the other.

What Is the Fawtara E-Invoicing System and How Does It Affect VAT Compliance?

Oman is introducing mandatory electronic invoicing under a system known as Fawtara, based on the Peppol five-corner model, with a phased rollout beginning in 2026. Phase 1 applies to the first 100 large VAT-registered companies starting August 2026, followed by a wider rollout to all large VAT-registered companies and eventually to all remaining VAT-registered taxpayers, including small and medium enterprises.

Businesses that will eventually fall under Fawtara should begin reviewing their invoicing systems and processes well ahead of their applicable phase, since e-invoicing compliance typically requires system and process changes that take longer to implement than businesses initially expect.

Can Related Companies Register as a VAT Group in Oman?

Businesses with related company structures in Oman can apply for VAT group registration, which allows a group of related entities to be treated as a single taxable person for VAT purposes. This simplifies compliance by consolidating filing into a single group return rather than requiring each entity to register, file, and account for VAT separately.

Group registration also affects how transactions between group members are treated, since intra-group supplies are generally disregarded for VAT purposes once the group registration is in place. This is particularly relevant for corporate structures with multiple related entities engaged in real estate, trading, or holding activity, where intra-group transactions might otherwise trigger VAT obligations that add administrative burden without any real revenue effect for the group as a whole. Businesses considering group registration should weigh the compliance simplification against the requirement to maintain consolidated records that satisfy the OTA’s documentation standards across all group members.

Suppliers to government entities in Oman also face registration obligations once they meet the standard threshold, and businesses importing goods into the country must register to account for VAT on imports regardless of whether their domestic sales alone would otherwise trigger the threshold. Both categories are treated under the same core registration rules described above rather than under a separate regime, but businesses in either position should confirm their specific obligations early, since import VAT and government contract VAT can behave differently in practice from standard domestic sales.

How Does Oman VAT Affect UAE Businesses Trading With Oman?

UAE businesses that supply goods or services into Oman, or that receive supplies from Oman-based suppliers, need to assess their Oman VAT position separately from their UAE VAT obligations. A UAE company exporting goods to Oman may find those exports zero-rated on the UAE side, but this does not automatically determine how the transaction is treated for Oman VAT purposes, particularly where the UAE business has any form of taxable presence or activity within Oman.

Digital and electronic services present a particular area of exposure. A UAE company selling digital services to customers based in Oman falls within the non-resident registration rules described above, meaning registration in Oman may be required regardless of the UAE company’s turnover, even where the same activity would not trigger a UAE VAT obligation. Businesses expanding operations across the GCC should map out their VAT exposure in each jurisdiction individually rather than assuming that compliance in one country satisfies obligations in another.

What Should Businesses Do to Prepare for Ongoing VAT Compliance in Oman?

Businesses operating in Oman should treat VAT compliance as an ongoing operational function rather than a one-time registration exercise. This means monitoring taxable supply volumes against the rolling twelve-month threshold, maintaining accurate records for the full 10-year retention period, and tracking regulatory updates to the Executive Regulations, which have already been amended four times since their original issuance in 2021.

Businesses should also assess how VAT rules interact with day-to-day operations such as customer invoicing, vendor contracts, and internal accounting systems, since gaps in these areas are a common source of both compliance errors and strained relationships with customers and suppliers when tax treatment is unclear or inconsistently applied.

Frequently Asked Questions (FAQs)

How Farahat & Co. Can Help

Farahat & Co. advises regional businesses on GCC VAT compliance, including Oman VAT registration, return filing, and preparation for e-invoicing requirements under Oman Tax Authority regulations.

Contact Farahat & Co. today to discuss your Oman VAT compliance requirements.