Small businesses across the UK are already feeling the impact of the government’s mismanagement of Brexit. A family business I spoke to last month told me that as a result of currency fluctuation he stands to lose £300,000 next year – equivalent to his entire annual profit.

The food industry has complex supply chains all across Europe. These supply networks have been hit by an 18 per cent devaluation of Sterling and UK manufactures have had to spend more on ingredients than they had budgeted for.

Marmite-gate made this clear; but a battle between Unilever and Tesco was always a battle between two giant corporations who were unlikely to command the sympathy of the British public. But small businesses are facing these problems – and struggling to balance the books.

Brexit battle: Supreme Court hearing begins

When they go to their supermarket buyers and explain the debilitating rise in costs which they face, they are met with polite sympathy but no uplift in the price. These are costs that manufacturers are unable to pass on.

This is just the beginning. SMEs create over 60 per cent employment in the private sector. These businesses are highly exposed to the potentially less favourable trading relationship with the EU, as 93 per cent of the UKs small business exporters choose the EEA as the destination for their goods.

Last month the Cabinet reportedly discussed a paper showing that if we leave the Customs Union, the UK would need to grow trade with its 10 largest non-EU partners by 37 per cent by 2030 simply to stand still in trade terms.

But what is the sense of this? As a local food exporter in my borough recently put it to me, “Why would I go to a corner shop 10 miles away when I’ve got a huge supermarket right on my doorstep?” Labour is clear that we want tariff-free access to the single market, because that delivers the best deal for British businesses.

Another issue is the uncertainty over the status of EU nationals living in the UK, which is preventing businesses from planning their human resources into the future. Liam Fox described EU nationals as “one of our main cards” in the negotiations, but businesses have a right to make the appropriate investments in staff on the basis of clear government policy, not on the turn of cards in a poker game.

Supreme Court Brexit Challenge Show all 13 1 /13 Supreme Court Brexit Challenge Supreme Court Brexit Challenge People wait to enter the public gallery outside the Supreme Court ahead of the challenge against a court ruling that Theresa May's government requires parliamentary approval to start the process of leaving the European Union, in Parliament Square, central London Reuters Supreme Court Brexit Challenge Gina Miller, co-founder of investment fund SCM Private arrives at the Supreme court in London on the first day of a four-day hearing Getty Supreme Court Brexit Challenge A man waves the EU flag in front of the Supreme Court Getty Supreme Court Brexit Challenge Satirical artist Kaya Mar poses with two of his paintings in front of the Supreme Court Getty Supreme Court Brexit Challenge Pro-Europe protestors dressed as Supreme Court Justices stand outside the Supreme Court ahead of the first day of a hearing into whether Parliament's consent is required before the Brexit process can begin. The eleven Supreme Court Justices will hear the government's appeal, following the High Court's recent decision that only Parliament can trigger Article 50 Getty Supreme Court Brexit Challenge The eleven Supreme Court Justices will hear the government's appeal, following the High Court's recent decision that only Parliament can trigger Article 50 Getty Supreme Court Brexit Challenge Businesswoman Gina Miller arrives at the Supreme Court ahead of the first day of a hearing into whether Parliament's consent is required before the Brexit process can begin Getty Supreme Court Brexit Challenge Attorney General Jeremy Wright arrives at the Supreme Court in London EPA Supreme Court Brexit Challenge Protesters outside the Supreme Court in London, where the Government is appealing against a ruling that the Prime Minister must seek MPs' approval to trigger the process of taking Britain out of the European Union PA wire Supreme Court Brexit Challenge A protesters wearing a judge's wigs and robes stands outside the Supreme Court ahead of the challenge against a court ruling that Theresa May's government requires parliamentary approval to start the process of leaving the European Union, in Parliament Square, central London Reuters Supreme Court Brexit Challenge A protester holds up a placard outside the Supreme Court ahead of the challenge against a court ruling that Theresa May's government requires parliamentary approval to start the process of leaving the European Union, in Parliament Square, central London Reuters Supreme Court Brexit Challenge Pro-Europe protestors dressed as Supreme Court Justices stand outside the Supreme Court Getty Supreme Court Brexit Challenge A man waiting to enter the public gallery waves a European Union flag outside the Supreme Court ahead of the challenge against a court ruling that Theresa May's government requires parliamentary approval to start the process of leaving the European Union, in Parliament Square, central London Reuters

A Brexit that works for Britain needs to work for small businesses and must ensure that our future trade deals don’t just work for big business. Liam Fox is focused on big business and an ideological drive for deregulation, masquerading as a free trade agenda. The Tories’ favoured trade deals post-Brexit are likely to make regional inequality worse, by focusing on the best deal for the City of London at the expense of smaller firms across the country.

At Labour Party conference, I announced an SME Market Access Clause to feature in international trade deals. The next Labour government will put the onus on foreign governments to identify routes for our small business exporters into their markets.