The levies are expected to all take effect on Tuesday, with Mexico and Canada both announcing counter-tariffs of their own in response.
Mr Trump has also threatened to go further, saying tariffs on the European Union would be implemented “pretty soon”.
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4:36
Trump’s proposed tariffs
When questioned about the UK, the president said Britain was “out of line” when it came to trade but he thought the situation could be “worked out” without the use of tariffs.
What are tariffs, and how do they work?
Put simply, tariffs are taxes on goods that are brought in from other countries.
By raising the price of imports, tariffs aim to protect domestic manufacturers by making locally made goods cheaper.
Contrary to what Mr Trump has said, it is not foreign countries that pay tariffs, but the importing companies that buy the goods.
For example, American businesses like Walmart or Target pay tariffs directly to the US treasury.
In the US, these tariffs are collected by customs and border protection agents, who are stationed at 328 ports of entry across the country.
Image: Mr Trump’s proposed tariffs
To compensate for tariffs, companies then put up their prices, so customers end up paying more for goods.
Tariffs can also damage foreign countries as it makes their products pricier and harder to sell.
This can lead to them cutting prices (and sacrificing profits) to offset levies and maintain their market share in the US.
Why is Trump doing this?
Mr Trump has argued that imposing higher levies will help reduce illegal migration and the smuggling of the synthetic opioid fentanyl to the US.
On Mexico, the US leader claimed drug traffickers and the country’s government “have an intolerable alliance” that in turn impacts national security.
He further claimed that Mexican drug cartels are operating in Canada.
On China, he said the country’s government provides a “safe haven” for criminal organisations.
He has also pledged to use tariffs to boost domestic manufacturing.
“We may have short term some little pain, and people understand that. But long term, the United States has been ripped off by virtually every country in the world,” he said.
His aim appears to be to force governments in those countries to work much harder to prevent what he calls illegal migration and the smuggling of the deadly drug fentanyl. But, even if the countries do not do what America wants, it will still potentially benefit firms that produce goods in the US.
What could the consequences be?
Mexico and Canada are two of America’s largest trading partners, with the tariffs upending decades-old trade relationships.
Goods that could be affected most by the incoming tariffs include fruit and veg, petrol and oil, cars and vehicle parts and electronic goods.
New analysis by the Budget Lab at Yale University found that the average US household would lose the equivalent of $1,170 US dollars (£944) in income from the tariffs.
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1:10
Why Trump’s tariffs could cost you
The research also found that economic growth would slow and inflation would worsen, as the tariffs forced up prices.
Immediate consequences were felt on Monday morning, as shares on Asian markets took a tumble.
Japan’s Nikkei opened down 2.9% while Australia’s benchmark – often a proxy trade for Chinese markets – fell 1.8%. Stocks in Hong Kong, which include listings of Chinese companies, fell 1.1%.
UK stocks were also significantly down, with the benchmark FTSE 100 index – containing the most valuable companies on the London Stock Exchange – dropped more than 1.3% on the open.
In Europe, stock markets opened sharply lower while the euro slid 1.3%. The Europe-wide index of companies, the Stoxx 600 dropped as much as 1.5%.
While Mexico’s peso hit its lowest in nearly three years.
‘Very scary path’
Sky News’ data and economics editorEd Conway said the long term consequences of a trade war is that “everyone gets poorer”, which is what happened to the world before World War Two.
“As countries get poorer, they get frustrated and you get more nationalism,” Conway said, speaking on Friday’s Sky News Daily podcast.
“This is exactly what happened in the 1930s, and the world ended up at war with each other. It is a very, very scary path, and yes, we are basically on a potential of that path.”
However, Conway added that one positive of Mr Trump’s tariffs could be highlighting “massive imbalances” within the global economy.
He said Mr Trump may be able to shift the conversation to problems that “economists don’t want to talk about”.
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“At the moment, we have a dysfunctional global economy,” he explained.
“You have got massive imbalances like trade deficits [when a country’s imports exceeds the value of its exports] and trade surpluses [when a country’s exports exceeds the cost of its imports].
“There might well be a better way of everyone getting together and having a conversation and working out how to align their affairs, so we don’t have these imbalances in the future.
“And tariffs help to get you to this point.”
How has the world reacted?
Canadian Prime Minister Justin Trudeau reacted strongly against Mr Trump’s tariffs, saying his country would impose 25% tariffs on $155bn Canadian dollars (£85.9bn) of US goods in response.
He added that the move would split the two countries apart, and urged Canadians to choose domestic products rather than American ones.
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0:50
Tariffs against Canada ‘will put US jobs at risk’
Mexican President Claudia Sheinbaum posted on X to say she had ordered her economy minister to implement tariff and non-tariff measures to defend Mexico’s interests.
She said her government “categorically rejects” the claim that it has “alliances with criminal organisations” and called on the White House to “fight the sale of drugs on the streets of their major cities”.
Meanwhile, China has claimed the US action violates World Trade Organisation (WTO) rules, and vowed to bring a case before the body that governs global commerce.
It also threatened to take “necessary counter-measures to defend its legitimate rights and interests”.
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0:59
Mexico responds to Trump’s tariffs
A spokesperson for theUK government reiterated that the US is an “indispensable ally” and one of the country’s “closest trading partners”.
They added that the trading relationship was “fair and balanced”, after Mr Trump criticised the UK, saying it was “out of line”.
European Union (EU) leaders have also taken a strong stance against looming US tariffs.
Kaja Kallas, the chief of foreign policy for the bloc, said there were no winners in a trade war, and if the US and Europe started one “then the one laughing on the side is China”.
German Chancellor Olaf Scholz added that the EU is strong enough to “respond to tariffs with our own tariffs”, while French President Emmanuel Macron said declarations by the US were pushing Europe to be “stronger and more united”.
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0:31
EU can react with its own tariffs
What’s the history of trade wars?
Imposing tariffs is not new to Mr Trump, or the US for that matter.
During his first term in the White House, he imposed higher levies on China and Vietnam.
In 2018, he imposed 25% tariffs on imported steel and 10% on imported aluminium from most countries, a response to what he said was the unfair impact of Chinese steel driving down prices and negatively affecting the US steel industry.
China then hit back with retaliatory tariffs on US imports, including 15% on 120 American products such as fruits, nuts, wine and steel pipes and a 25% tariff on US pork and recycled aluminium.
Before that, democrat Jimmy Carter went so far as to completely ban the sale of wheat to Russia, which remained in effect until Ronald Reagan ended it in 1981.
In 2019, Mr Trump also used the threat of tariffs as leverage to persuade Mexico to crack down on migrants crossing Mexican territory on their way to the US.
A study by economists at the Massachusetts Institute of Technology, the University of Zurich, Harvard and the World Bank concluded that Mr Trump’s tariffs the first time around failed to restore jobs to the American heartland.
The tariffs “neither raised nor lowered US employment” when they were supposed to protect jobs, according to Sky News’ US partner network NBC News.
Donald Trump has announced a 10% trade tariff on all imports from the UK – as he unleashed sweeping tariffs across the globe.
Speaking at a White House event entitled “Make America Wealthy Again”, the president held up a chart detailing the worst offenders – which also showed the new tariffs the US would be imposing.
“This is Liberation Day,” he told a cheering audience of supporters, while hitting out at foreign “cheaters”.
He claimed “trillions” of dollars from the “reciprocal” levies he was imposing on others’ trade barriers would provide relief for the US taxpayer and restore US jobs and factories.
Mr Trump said the US has been “looted, pillaged, raped, plundered” by other nations.
Image: Pic: AP
His first tariff announcement was a 25% duty on all car imports from midnight – 5am on Thursday, UK time.
Mr Trump confirmed the European Union would face a 20% reciprocal tariff on all other imports. China’s rate was set at 34%.
The UK’s rate of 10% was perhaps a shot across the bows over the country’s 20% VAT rate, though the president’s board suggested a 10% tariff imbalance between the two nations.
It was also confirmed that further US tariffs were planned on some individual sectors including semiconductors, pharmaceuticals and critical mineral imports.
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6:39
Trump’s tariffs explained
The ramping up of duties promises to be painful for the global economy. Tariffs on steel and aluminium are already in effect.
The UK government signalled there would be no immediate retaliation.
Business and Trade Secretary Jonathan Reynolds said: “We will always act in the best interests of UK businesses and consumers. That’s why, throughout the last few weeks, the government has been fully focused on negotiating an economic deal with the United States that strengthens our existing fair and balanced trading relationship.
“The US is our closest ally, so our approach is to remain calm and committed to doing this deal, which we hope will mitigate the impact of what has been announced today.
“We have a range of tools at our disposal and we will not hesitate to act. We will continue to engage with UK businesses including on their assessment of the impact of any further steps we take.
“Nobody wants a trade war and our intention remains to secure a deal. But nothing is off the table and the government will do everything necessary to defend the UK’s national interest.”
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0:43
Who showed up for Trump’s tariff address?
The EU has pledged to retaliate, which is a problem for Northern Ireland.
Should that scenario play out, the region faces the prospect of rising prices because all its imports are tied to EU rules under post-Brexit trading arrangements.
It means US goods shipped to Northern Ireland would be subject to the EU’s reprisals.
The impact of a trade war would be expected to be widely negative, with tit-for-tat tariffs risking job losses, a ramping up of prices and cooling of global trade.
Research for the Institute for Public Policy Research has suggested more than 25,000 direct jobs in the UK car manufacturing industry alone could be at risk from the tariffs on car exports to the US.
The Society of Motor Manufacturers and Traders (SMMT) had said the tariff costs could not be absorbed by manufacturers and may lead to a review of output.
The tariffs now on UK exports pose a big risk to growth and the so-called headroom Chancellor Rachel Reeves was forced to restore to the public finances at the spring statement, risking further spending cuts or tax rises ahead to meet her fiscal rules.
A member of the Office for Budget Responsibility (OBR), David Miles, told MPs on Tuesday that US tariffs at 20% or 25% maintained on the UK for five years would “knock out all the headroom the government currently has”.
But he added that a “very limited tariff war” that the UK stays out of could be “mildly positive”.
He said: “There’s a bit of trade that will get diverted to the UK, and some of the exports from China, for example, that would have gone to the US, they’ll be looking for a home for them in the rest of the world.
“And stuff would be available in the UK a bit cheaper than otherwise would have been. So there is one, not central scenario at all, which is very, very mildly potentially positive to the UK. All the other ones which involve the UK facing tariffs are negative, and they’re negative to very different extents.”
Israel is beginning a major expansion of its military operation in Gaza and will seize large areas of the territory, the country’s defence minister said.
Israel Katz said in a statement that there would be a large scale evacuation of the Palestinian population from fighting areas.
In a post on X, he wrote: “I call on the residents of Gaza to act now to remove Hamas and return all the hostages. This is the only way to end the war.”
He said the offensive was “expanding to crush and clean the area of terrorists and terrorist infrastructure and capture large areas that will be added to the security zones of the State of Israel”.
The expansion of Israel’s military operation in Gaza deepens its renewed offensive.
The deal had seen the release of dozens of hostages and hundreds of Palestinian prisoners, but collapsed before it could move to phase two, which would have involved the release of all hostages and the withdrawal of Israeli forces from Gaza.
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1:08
26 March: Anti-Hamas chants heard at protest in Gaza
The Israel Defense Forces (IDF) had already issued evacuation warnings to Gazans living around the southern city of Rafah and towards the city of Khan Yunis, telling them to move to the al Mawasi area on the shore, which was previously designated a humanitarian zone.
Israeli forces have already set up a significant buffer zone within Gaza, having expanded an area around the edge of the territory that had existed before the war, as well as a large security area in the so-called Netzarim corridor through the middle of Gaza.
This latest conflict began when Hamas launched an attack on Israel on 7 October 2023, killing around 1,200 people and taking around 250 hostages.
The ensuing Israeli offensive has killed more than 50,000 Palestinians, according to Gaza’s Hamas-run health ministry.
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1:22
Bodies of aid workers found in Gaza
Aid group Doctors Without Borders warned on Wednesday that Israel’s month-long siege of Gaza means some critical medications are now short in supply and are running out, leaving Palestinians at risk of losing vital healthcare.
“The Israeli authorities’ have condemned the people of Gaza to unbearable suffering with their deadly siege,” said Myriam Laaroussi, the group’s emergency coordinator in Gaza.
“This deliberate infliction of harm on people is like a slow death; it must end immediately.”
“Liberation day” was due to be on 1 April. But Donald Trump decided to shift it by a day because he didn’t want anyone to think it was an April fool.
It is no joke for him and it is no joke for governments globally as they brace for his tariff announcements.
It is stunning how little we know about the plans to be announced in the Rose Garden of the White House later today.
It was telling that we didn’t see the President at all on Tuesday. He and all his advisers were huddled in the West Wing, away from the cameras, finalising the tariff plans.
Treasury Secretary Scott Bessent is the so-called ‘measured voice’. A former hedge fund manager, he has argued for targeted not blanket tariffs.
Peter Navarro is Trump’s senior counsellor for trade and manufacturing. A long-time aide and confidante of the president, he is a true loyalist and a firm believer in the merits of tariffs.
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His economic views are well beyond mainstream economic thought – precisely why he appeals to Trump.
The third key character is Howard Lutnick, the commerce secretary and the biggest proponent of the full-throttle liberation day tariff juggernaut.
The businessman, philanthropist, Trump fundraiser and billionaire (net worth ranging between $1bn and $2bn) has been among the closest to Trump over the past 73 days of this presidency – frequently in and out of the West Wing.
If anything goes wrong, observers here in Washington suspect Trump will make Lutnick the fall guy.
And what if it does all go wrong? What if Trump is actually the April fool?
“It’s going to work…” his press secretary said when asked if it could all be a disaster, driving up the cost of living for Americans and creating global economic chaos.
“The president has a brilliant team who have been studying these issues for decades and we are focussed on restoring the global age of America…” Karoline Leavitt said.
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2:52
‘Days of US being ripped off are over’
Dancing to the president’s tune
My sense is that we should see “liberation day” not as the moment it’s all over in terms of negotiations for countries globally as they try to carve out deals with the White House. Rather it should be seen as the start.
Trump, as always, wants to be seen as the one calling the shots, taking control, seizing the limelight. He wants the world to dance to his tune. Today is his moment.
But beyond today, alongside the inevitable tit-for-tat retaliation, expect to see efforts by nations to seek carve-outs and to throw bones to Trump; to identify areas where trade policies can be tweaked to placate the president.
Even small offerings which change little in a material sense could give Trump the chance to spin and present himself as the winning deal maker he craves to be.
One significant challenge for foreign governments and their diplomats in Washington has been engaging the president himself with proposals he might like.
Negotiations take place with a White House team who are themselves unsure where the president will ultimately land. It’s resulted in unsatisfactory speculative negotiations.
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6:03
Treasury minister: ‘We’ll do everything to secure a deal’
Too much faith placed in the ‘special relationship’?
The UK believes it’s in a better position than most other countries globally. It sits outside the EU giving it autonomy in its trade policy, its deficit with the US is small, and Trump loves Britain.
It’s true too that the UK government has managed to accelerate trade conversations with the White House on a tariff-free trade partnership. Trump’s threats have forced conversations that would normally sit in the long grass for months.
Yet, for now, the conversations have yielded nothing firm. That’s a worry for sure. Did Keir Starmer have too much faith in the ‘special relationship’?
Downing Street will have identified areas where they can tweak trade policy to placate Trump. Cars maybe? Currently US cars into the UK carry a 10% tariff. Digital services perhaps?
US food? Unlikely – there are non-tariff barriers on US food because the consensus seems to be that chlorinated chicken and the like isn’t something UK consumers want.
Easier access to UK financial services maybe? More visas for Americans?
For now though, everyone is waiting to see what Trump does before they either retaliate or relent and lower their own market barriers.