The target, set by David Cameron in 2010, was included in the last two Tory manifestos but has never been achieved. Recent figures suggest net migration into Britain currently stands at 273,000.
The prospect of reclaiming control of Britain’s borders was a key factor in the Brexit vote, with a number of Leave voters likely to welcome the news.
The Prime Minister has so far refused to guarantee whether or not the migration target would be included in her manifesto but BBC sources claim the pledge will once again feature when Tories’ policies and aims are revealed this week.
On Sunday, Home Secretary Amber Rudd refused to confirm whether the aim of reducing net migration to tens of thousands would appear in the party’s election manifesto, sparking fears that the Conservatives may roll back on previous party manifesto promises.
Asked if the “tens of thousands” figure that appeared in the 2015 manifesto would be repeated in the 2017 document, she said: “It’s not going to be identical to the last one. We’re setting it out for hopefully a five year term, we’ve got a lot to think through to work out what’s the best way to deliver on our priorities.
“My personal view is we need to continue to bring immigration down.
“I want to make sure that we do it in a way that supports businesses – you know we’re ending freedom of movement when we leaving the European Union.
In March, the company told a committee of MPs that they could face a labour shortage after Brexit but last month, the firm’s chief executive Clive Schlee said a new drive to hire British workers had shown “very encouraging” results.
Ms Rudd said: “I did hear that Pret a Manger had come out and said it’s absolutely essential for us to have European workers because if we don’t we’re going to have to make more of an effort to recruit in the UK.
“Well, good. I’d quite like them to make more of an effort to recruit in the UK. So we will be trying to push them as well to do more in the UK. Them and…