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Wake Up to Money

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One of the big objectives of the Brexit negotiations was to avoid a hard border on the island of Ireland.

As a result, Northern Ireland has remained in the EU single market for goods and will apply EU customs rules at its ports.

So what does that mean for businesses?

Declan Billington is the boss of John Thompson and Sons, Northern Ireland's largest animal feed processor, which employs nearly 200 people.

He told BBC 5Live’s Wake Up to Money that he feels as though the firm is “half in and half out” of the single market.

“All of the rules that apply to Europe will apply to moving goods to Northern Ireland. But then, there’s a whole suite of exemptions that we also have to get on top of to figure out how to move things from England.

“We’re very much finding our feet… In the meantime, you just avoid buying things from the places that could create problems, you build stock and we’ll be testing goods movements slowly and carefully.”

The border crossings between the UK and the European Union face their first day of significant traffic under new rules.

NI's first minister says the UK-EU deal eases "some of the difficulties with the NI Protocol".

Boris Johnson says the gap between referendums on Europe - 41 years - is "a good sort of gap" for independence referendums.

Watch: Andrew Marr talks to Boris Johnson about school closures, tier restrictions and Brexit.

Northern Ireland's first minister. spoke to the BBC's Andrew Marr about border control and Brexit.

Several loads of food products arrived on Friday and Saturday without the correct paperwork.

The UK-EU trade deal was the final piece in an old jigsaw - and the first piece in a new one.

An area of farmland next to the A2 is earmarked for the checking of imported goods, due to Brexit.

Boris Johnson celebrates the "freedom in our hands" as the long Brexit process comes to a conclusion.

The trade border means most commercial goods entering NI from GB now require a customs declaration.

With a Brexit deal done, we look at the challenges to come at British borders.

Reality Check investigates the value of foreign-owned British fishing quotas.

Campaigners say cutting of the 5% VAT rate on tampons and sanitary towels ends a 'sexist' tax.

A guide through Brexit's impact on London's people, business and finances.

Welsh Secretary Simon Hart says firms will be better off, but Labour warns of costly red tape.

Some lorries heading for Ireland have already been turned away from Welsh ports over wrong paperwork.

Today is the day when the terms of the trade deal between Britain and the European Union come into force - the day when Britain finally says goodbye to the EU.

Baroness Gisela Stuart was one of the most prominent eurosceptics during the Brexit campaign.

(Photo: A person wears a Brexit badge as supporters of Brexit gather to celebrate in Parliament Square. Credit: Reuters)

Europeans in the UK, and British people around Europe, explain what Brexit will mean for them.

The UK’s new single market is not as big as the country, it now needs to encompass the whole world.