US President Donald Trump has threatened to impose a steep tariff of up to 100 percent on imports from any country that relies on a tax on digital services provided by US companies, while stressing that existing trade agreements with those countries will be canceled.

The stern threat came in a post on social media in which he sharply criticized European countries' efforts to implement imminent taxes targeting the US tech giant. The sudden escalation has left Washington's traditional allies with a difficult choice between protecting their domestic digital revenues or facing a full-blown tariff war that would wreak havoc on their exports to the U.S. market.

And Trump's Day

US President Donald Trump confirmed in a post on the "Truth Social" platform that any country that goes ahead with a digital tax will face a 100 percent tariff on any goods sent to the United States. In his post, in which he singled out European countries, Trump stated that these new punitive tariffs are ahead of any previously negotiated trade agreements.

According to past positions, Trump has long opposed international attempts to regulate or tax U.S. technology companies, noting in August that these legislations are "all designed to harm or discriminate against U.S. technology."

Although the administration has already opened an investigation under Section 301 into the digital services tax, it is not yet clear how the legal mechanism by which Trump will implement his last promise.

Pending Agreement

The stern warning coincided ahead of a crucial deadline set for July 4 to start implementing a trade agreement between the European Union and the United States that would cap most tariffs on European exports at 15 percent.

The EU finalized the deal in May, following internal discussions following a preliminary agreement reached by European Commission President Ursula von der Leyen during a visit to Trump's golf course in Scotland.

However, the joint report noted that the digital tax file has been completely excluded from this trade deal, remaining a timed minefield and a major source of ongoing discord and tension between Washington and the bloc.

British Position

Official policy documents in Britain, which left the European Union 10 years ago, show that since 2020, London has imposed its own 2% tax on digital services, targeting search engines, social media platforms and online marketplaces.

In its document, the British government argued that traditional tax rules created an imbalance between where the tax was levied and where the actual value was created by users within the United Kingdom.

According to the details of British law, London has set a minimum profit and loss cap to ensure that the primary tax burden falls on large multinational corporations, to ensure that they make a fair contribution to support vital public services.

This salty tariff war on the horizon comes at a time when European countries are scrambling to find new revenue streams to replenish their budgets, as their economies rapidly move into the digital space dominated entirely by U.S. giants.

On the other hand, the U.S. side sees these European and British endeavours as an unfair protectionist targeting of its successful national companies. The July 4 date is a real test of the resilience of the latest trade agreement and the future of transatlantic economic relations.