Arlene Foster, leader of the DUP, is keen to maintain an open border with the Republic of Ireland and has several times spoken against a ‘hard Brexit’.

The DUP manifesto says the party is keen to secure a ‘comprehensive free trade and customs agreement with the European Union’.

The manifesto also shows the parties differ on pensions and winter fuel payments. The DUP wants to maintain the triple lock, while the Conservatives scrapped the 2.5% rise safeguard.

On the winter fuel allowance, the DUP promises to resist ‘any assault’ on what it regards as a vital universal benefit.

In terms of corporation tax, the DUP is keen to attract more jobs to Northern Ireland through lowering devolved corporation tax in the country. This lower rate has already been agreed in principle for Northern Ireland, but has never been adopted due to issues over financial controls and the collapse of the Stormont power-sharing government.

Corporation tax is a particular issue for Northern Ireland, as the Republic has introduced a rate of 12.5%. The UK’s rate is currently 19%.

The DUP has also called for the 20% VAT rate to be cut for tourism businesses.

‘It is no coincidence that our record levels of inward investment have happened during a sustained period of devolution,’ the manifesto reads. ‘Having stable structures at Stormont with local ministers leading efforts to sell Northern Ireland internationally has helped us secure thousands of new jobs. Without devolution, all of the efforts to reduce our rate of corporation tax will have been for nothing. Political stability is key to our future economic success.’

On a personal tax level, the DUP are in favour of raising the personal allowance, increases to the national living wage and ‘firm action against companies that fail to pay’ the rate.

In all, 10 DUP MPs will hold the balance of power, should the two parties strike a deal. Those are Nigel Dodds of Belfast North; Ian Paisley Jr of North Antrim; Gavin Robinson for Belfast East; Emma Little-Pengelly, Belfast South; Sammy Wilson, East Antrim; David Simpson, Upper Bann; Gregory Campbell, East Londonderry; Sir Jeffrey Donaldson, Langan Valley; Paul Givan, South Antrim; Jim Shannon, who represents Stangford.

The party was formed in 1971 by Reverend Ian Paisley Snr, who led the party for decades until Peter Robinson took the reins. He lost his seat in 2015, leading to Foster’s leadership.

You can read the DUP's 2017 election manifesto here  dup-westminster-manifesto-2017.pdf.