Theresa May is to officially lay out the plans for the June election as she officially presents the Conservative manifesto - with migrants front-and-centre of the polciy blueprint.
The document to be launched in West Yorkshire will reinforce the party's commitment to bring migration to the "tens of thousands" - a promise made repeatedly by the Tories over recent yhears.
It will also increase levies paid from firms who employ migrant workers, which could potentially discourage employers from hiring migrants based overseas.
The party, if elected, would double the annual charge for skilled workers from other European Union member states to a total of £2,000.
Other measures in the manifesto will include a requirement for foreign workers and international students to pay more to cover the NHS, and pumping an extra £4 billion into schools by 2022.