US-UK Economic Prosperity Deal: What the General Terms Cover and What Is Still Open

The document is explicit about its status: both countries recognise that it does not constitute a legally binding agreement. Each commitment will therefore need to be implemented through further negotiation and domestic measures before it changes the tariffs that traders actually pay.

What the general terms promise

• Cars: the US will create a quota of 100,000 vehicles for UK automotive imports at a 10% tariff rate, with an accompanying arrangement for auto parts used in those vehicles.
• Steel and aluminium: once the UK meets US requirements on the security of supply chains and on the ownership of production facilities, the US will promptly construct a quota at most favoured nation rates for UK steel, aluminium and certain derivative products.
• Pharmaceuticals: subject to the outcome of the US Section 232 investigation into pharmaceuticals, the two sides intend to negotiate significantly preferential treatment.
• Agriculture: the UK will remove its 20% tariff on the existing 1,000 metric tonne US beef quota and create a 13,000 tonne duty-free quota, matched by a 13,000 tonne reallocation of the US beef quota to the UK. The UK will also offer a duty-free quota of 1.4 billion litres for US ethanol.

Beyond tariffs, the US-UK Economic Prosperity Deal commits both sides to negotiate digital trade provisions, including for financial services, to work on mutual recognition of conformity assessment bodies and additional mutual recognition agreements, and to strengthen cooperation on economic security. Rules of origin are to be designed to prevent third countries from using the arrangement to circumvent tariffs.

What the UK government says

In remarks on 8 May, the Prime Minister said the deal would save thousands of jobs, that US tariffs on 100,000 British cars a year would be cut from 27.5% to 10%, and that tariffs on British steel and aluminium would fall to zero. The general terms themselves frame the steel outcome as a quota at most favoured nation rates that depends on the UK first meeting US supply chain and ownership requirements.

What happens next

For exporters, nothing changes until the US implements the vehicle quota and the steel arrangement, and the UK implements its beef and ethanol quotas. Car makers, steel producers and pharmaceutical companies should watch for the implementing instruments, the quota administration rules and the outcome of the pharmaceutical investigation.

Sources

• GOV.UK: General Terms for the US-UK Economic Prosperity Deal
• GOV.UK: PM remarks on the UK's landmark economic deal with the US, Thursday 8 May