Last month's UK-GCC free trade agreement has been presented as one of Britain’s most significant post-Brexit trade achievements. Politically, the symbolism is clear. Britain can point to a commercially important agreement with one of the world’s fastest-growing economic regions, even if the war has dented short-term confidence, while the Gulf states can demonstrate growing confidence and flexibility as global trade actors.
The agreement creates clear opportunities. British businesses are well placed in sectors that Gulf governments prioritise as part of their diversification agendas, including financial services, energy transition, artificial intelligence, cyber security, advanced manufacturing and digital infrastructure. London’s financial markets, legal system and regulatory expertise continue to appeal to Gulf investors, as states such as Saudi Arabia and the UAE pursue ambitious economic transformation programmes.
Much of the political enthusiasm surrounding the agreement risks obscuring a more difficult truth. Trade agreements are far easier to announce than to implement.
The projected economic gains are modest. The UK government has linked the GCC agreement with its recently concluded India trade deal, estimating that together the two agreements could add approximately £8.5bn annually to UK GDP by 2040. For an economy the size of Britain’s, this is politically useful but economically limited.
One reason for this is that tariffs were never the biggest barrier to UK-Gulf trade in the first place. Average tariffs across the Gulf are already low, typically around 5% for many goods. The more significant barriers sit elsewhere, in licensing systems, standards requirements, customs procedures, local content rules and the variation in national regulations across the six GCC states.
This is most evident for British services firms, which sit at the centre of the UK’s commercial interests in the Gulf. Financial services, consulting, legal advisory work, engineering and technology all depend heavily on regulatory access and local operating conditions. These areas remain politically sensitive across the Gulf because they touch directly on sovereignty, labour markets and domestic economic priorities.
Potential complications
The agreement may provide a GCC-level framework, but implementation will still depend heavily on national governments. That is where complications are likely to emerge. The GCC customs union is often presented as evidence of regional integration. Goods entering one GCC country can theoretically clear customs there before moving freely across the bloc. In practice, however, the system remains uneven and far from frictionless.
Moreover, VAT regimes still differ between member states, documentation requirements vary, and border enforcement is inconsistent. Sectors such as pharmaceuticals, food products and telecommunications equipment still require national approvals and inspections. Sensitive goods such as defence-related or dual-use goods, steel and aluminium, among others, continue to face restrictions, while administrative capacity differs across the region.
