Some commodities have also been subject to individual tariffs. Trump recently announced a 50% tariff on copper imports, effective from 1 August. Steel and aluminium imports are already subject to a 50% tariff from most countries, though in the UK’s case this is 25%.

With inflation creeping back into the US economy, it's as important as ever to have a firm grasp on Donald Trump's tariffs and what they mean.

US President Donald Trump suggested that he would not go below 15% as he sets so-called reciprocal tariff rates ahead of an Aug. 1 deadline, an indication that the floor for the increased levies was rising.