Sir Keir Starmer has promised his EU reset will be "good for our borders" despite warnings that the Prime Minister will soon "open the floodgates" to tens of thousands of migrants.
As part of a deal, which will be set to be announced on Monday, young Europeans are expected to be able to live and work in the UK.
The EU has been pushing for a Youth Mobility Scheme for more than a year, with Brussels still pushing for the programme to allow young migrants aged 18 to 30 to stay in the UK for up to three years.
Labour's Europe Minister Nick Thomas-Symonds argued the reset will see Britain "standing side by side with the EU" but insisted the Government was not preparing the relitigate the Brexit debate.
Starmer believes that 'this is what the British people voted for last year'
PADiscussing before the final day of negotiations, Starmer explained that the deal "will be good for our jobs, good for our bills and good for our borders".
He said: "That's what the British people voted for last year, and it's what my Government will deliver."
However, the Prime Minister is facing a Brexit backlash ahead of Monday's UK-EU summit.
Shadow Home Secretary Chris Philp said: "This scheme could open the floodgates to tens of thousands or more flooding into the country, including people who recently entered Europe illegally and then got citizenship."
"Last week, Starmer said he wanted to clamp down on immigration, but he's now on the verge of throwing open the doors. He is a disingenuous charlatan when it comes to our border security."
British officials are negotiating a numerical cap on the number of Europeans arriving in the UK, similar to a model the UK has with Australia, which is capped at 42,000 people a year arriving.
The scheme with Australia initially limited Australians to stay for two years, but this was extended to three.
A Whitehall source told The Telegraph: "Obviously we're a country of 60 million people and they're a bloc of 450 million, so there are fears in Government of an imbalance in numbers, and in terms of who is benefitting on each side."
Sir Keir Starmer pictured with the President of the European Commission, Ursula von der Leyen
GETTY
The Government is also set to align with Brussels' ruling on plant and animal health, with further details on food and fishing to emerge from the deal.
A deal would reduce trade barriers on food. However, the UK would need to follow the decisions of the European Court of Justice in the case of disputes.
EU negotiators are also pushing for four years of access for European fishing boats to British waters, while the British side is doubling down on only one year of access.
Reform UK leader Nigel Farage also told The Telegraph he would scrap Starmer's Brexit deal if elected Prime Minister.
