The free movement of people between Britain and the EU will come to an end in March 2019 and will be replaced by a new system of immigration, according to Immigration minister Brandon Lewis in a BBC Radio 4 interview.
Immigration and the free movement of labour between the two areas has been a thorny issue in the Brexit debate and has been widely accepted as a key reason why the majority voted to leave the EU.
Speaking about the immigration issue on the Today programme this morning, Lewis said: " "Free movement of labour ends when we leave the European Union in the spring of 2019."
"It is a simple matter of fact that the four key principles of the European Union includes free movement and we won't be a member of the European Union when we leave."
He did not outline the government's plans for managing migration after Brexit but said a White Paper, due later this year, will give details about the matter.
Additionally, the immigration bill next year will outline the new system of immigration post-Brexit, he added.
Separately, writing in the Financial Times, Home Secretary Amber Rudd said Britain must continue to attract the best and brightest migrants from around the world.
She added that Britain must implement a new immigration system after its leaves the EU, giving it control and ensuring that the system works in everyone's interests.
She also commissioned extensive examination of the costs and benefits of European migrants to the British economy from the independent Migration Advisory Committee.