UK: 
USA:
The spread of e-invoicingElectronic invoicing - widely referred to as e-invoicing - is the exchange of a digital document between a supplier and a buyer. E-invoices are issued, transmitted and received in a structured data format that enabled automatic and electronic processing. They contain data in a machine-readable format so that an AP system can read an invoice without manual data entry, leading to faster and more efficient invoicing. has become one of the major themes in global tax over the last few years, with tax authorities around the world looking to increase compliance and reduce tax fraud.
Across the GCC, governments are accelerating their e-invoicing initiatives as part of wider VAT and digital transformation projects.
For many businesses, this shift isn’t just a regulatory hurdle, it’s a real opportunity to digitise processes, improve transparency, and stay ahead of the curve.
Let’s take a closer look at how e-invoicing is transforming the landscape for businesses in the GCC.
Saudi Arabia
Saudi Arabia is the frontrunner in terms of digital transformations. Having only introduced VAT in 2018, the country was the first of the GCC countries to launch its e-invoicing regime back in December 2021.
The majority of larger businesses are already obliged to comply with the national FATOORAH regime, and in phase 2 (integration phase).
The next confirmed waves to join phase 2:
22nd wave – January 2026 (taxpayers annual income between SAR 1 and 1.25 million)
23rd wave – March 2026 (taxpayers annual income between SAR 0.75 and 1 million)
24th wave – June 2026 (taxpayers annual income between SAR 0.35 and 0.75 million)
Bahrain
Bahrain is actively developing a mandatory, phased e-invoicing system, led by The National Bureau for Revenue (NBR). Effective dates and full rules have not yet been published, although it is thought to start in the coming years.
Expectations are that large taxpayers will be required to comply with the mandate first with smaller taxpayers to follow suit later down the line.
Businesses operating in Bahrain should monitor NBR developments and be ready to adapt. In the meantime, there are some VAT laws, which apply broadly to invoicing, record-keeping and other VAT obligations that should stay top of mind.
Kuwait
Whilst there is very little information surrounding an e-invoicing mandate in Kuwait, there have been conversations and intentions to roll one out.
Many are in agreement Kuwait will likely follow suit to it’s GCC neighbours and plan a gradual introduction, starting with larger businesses and expanding over time.
Oman
The long-anticipated rollout of Oman’s e-invoicing phased mandate is officially starting in 2026. The system will follow the PEPPOLThe Pan-European Public Procurement On-Line simplifies electronic procurement by developing technology standards that can be implemented by all governments across the EU. five-corner model and initially focus on large businesses, with full implementation expected by 2027.
Large VAT registered companies should begin preparing now – evaluating systems, updating processes and engaging with accredited service providers early.
More details, including technical specifications and integration guidelines, are likely to emerge as we edge closer to the deadline.
Qatar
Qatar is moving towards mandatory e-invoicing as a part of its upcoming VAT framework.
While e-invoicing is currently voluntary, recent signals from the tax authority indicate a phased mandatory rollout aligned with VAT implementation, making early preparation essential for all businesses.
Under the proposed e-invoicing rules, companies will need to register with the tax authority, integrate their ERPEnterprise resource planning (ERP) is a type of software that organisations use to manage main business processes. systems with a certified e-invoicing provider or portal, issue structured invoices within tight submission windows, and maintain compliant digital archives.
United Arab Emirates
UAE is one of the next countries to mandate e-invoicing, using a PEPPOL five-corner model.
Timeline:
- July 2026: voluntary pilot phase
- January 2027: taxpayers above AED 50m turnover
- July 2027: taxpayers below AED 50m turnover
- October 2027: B2GCommerce between business to government.
UAE e-Invoicing requires structured XMLExtensible Markup Language is a markup language and file format for storing, transmitting, and reconstructing arbitrary data./JSON/UBL invoices via Accredited Service Providers (ASPs), to be reported to FTA within 14 days.
The ASP list will be published by the Ministry of Finance shortly. Waves of mandated businesses should appoint their ASP at least six months prior to go-live.
How we can help
The spread of e-invoicing has become one of the major themes in global tax over the last few years, with tax authorities around the world looking to increase compliance and reduce tax fraud.
At Innovate Tax, we understand that managing multiple e-invoicing deadlines and evolving technical requirements can be challenging. Our simple three-step service is designed to make the process easier – you can learn more about it here.
