Clyde & Co’s Tariff Tracker: December edition

Clyde & Co’s Tariff Tracker provides an overview of all trade restrictions imposed or announced by the US and against the US. The tracker will be updated by our offices across the globe as new measures are introduced.

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The December updates on the tariff tracker including updates in US tariffs, retaliatory tariffs and any after-effects, are set out below.

4 DECEMBER 2025

US tariffs

• On 1 December 2025, the US and the UK reached an agreement in principle under the Economic Prosperity Deal (EPD) to maintain 0 percent tariff on all UK pharmaceutical imports into the US for at least three years.

When will the tariffs come into effect?

• The effective date for implementation of the 0 percent tariff on UK pharmaceutical imports into the US has yet to be confirmed.

See our Tariff Tracker