This is a system that will likely become even worse given the impact of Brexit and the backlog of cases created by the pandemic.
Priti Patel has announced that the border will close on October 31 without a transition period.
Chronic underfunding has made elections difficult to run in the UK. Yet the government continues to obsess over voter ID.
What rights and legal protections will EU citizens in the UK and Britons in the EU have when they become 'third country nationals' after Brexit?
The government has abandoned its plan to charge £65 for EU citizens applying for 'settled status' after Brexit – but what does it secure.
The British government's immigration plans may be long-awaited, but they have not come at a good time.
How a child reacted to Theresa May's comments that Brexit would stop EU citizens from 'jumping the queue' to come to the UK.
What migration figures really tell us about the movement of people.
In its Brexit white paper, the UK government proposed a new UK-EU youth mobility scheme. But the details remain vague.
Details have been published of how EU citizens in the UK can apply for 'settled status' after Brexit. But it may have some teething problems.
Norway's relationship with the EU is carefully managed – what lessons does it have for Britain after Brexit?
All EU citizens living in the UK will need to register after Brexit. But some may find it difficult to do so.
When homelessness charities work alongside Home Office immigration teams, it can put vulnerable people off seeking help.
New data shows another drop in the number of EU citizens coming to the UK since Brexit.
A Dutch court has asked the European Court of Justice for clarification on whether British citizens should be allowed to keep their citizenship after Brexit.
Rough sleeping by EU citizens in the UK can no longer be considered an abuse of free movement rights – but the homeless are still vulnerable.
The deal was not as bad as it could have been, but not as good as it should have been.
Theresa May has reached an agreement with the EU that will enable her to proceed to the second stage of Brexit negotiations. Here's what it all means.
Deportations of EU nationals in the UK have risen by 20%, despite EU laws protecting their rights.
The uncertainty itself could amount to infringing on the right to private and family life.