Keir Starmer will accuse the Tories of creating a "hulking fatberg" of Brexit red tape in a speech laying out Labour's plans for the future relationship with Brussels.
The Labour leader is expected to unveil his new plan to "Make Brexit Work", in a nod to Boris Johnson's election-winning promise to "Get Brexit Done" in 2019.
In a speech today, Mr Starmer will say Labour won't undo Brexit and make it clear he won't try to rejoin the EU's single market and customs union.