Reality Check

Just minutes into the debate, Boris Johnson has used the phrase "get Brexit done" or "getting Brexit done" several times.

So will Brexit be "done" by 31 January?

That depends on what you mean by "done". If the government can push through Mr Johnson's deal then the UK will leave the EU but it would be the beginning of an extremely complicated process.

The UK would still follow EU rules and pay into the budget until the end of the "transition period" on 31 December 2020. During this period, the UK will have to negotiate a free trade deal with the EU and there is no guarantee it would be done before the transition period ends.

At the same time, the UK will also need to negotiate other parts of its future relationship with the EU, including data and security.

Read our full Reality Check analysis here.

The Conservative Party claims Labour's spending plans would cost an extra £1.2tn over the next five years.

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Tom Edgington
BBC Reality Check

Corporation tax is paid by businesses on their profits in the UK. It's an important revenue-raiser, making up approximately 9% of the UK government's total tax take, external.

Since 2010, corporation tax has fallen from 28% to the current rate of 19%. However, Mr Johnson says a planned cut to 17% in April won't happen if the Conservatives win the election. The PM says the move would have cost the government about £6bn a year.

This estimate appears to be based on an official costing, external, produced by HM Revenue & Customs.

Before Monday's announcement, the Conservatives had been arguing that corporation tax cuts could lead to more government income.

During this summer's leadership contest, for example, Mr Johnson said: "Every time corporation tax is cut in this country it has produced more revenue."

Actually, that's not always the case. The amount raised in the two years following April 2008's rate cut actually fell, for example.

It is true that corporation tax revenue has risen by about two-thirds since 2010, despite further cuts to the headline rate. But the independent Institute for Fiscal Studies says that is unsurprising given that 2010 represented the trough of the financial crisis.

Since then firms have become more profitable, resulting in additional corporation tax revenue for government.

The major parties in England have pledged billions more for the NHS over the next five years.

Reality Check has been looking at some of the claims the prime minister made during the hour-long programme.

Reality Check

Earlier, Craig in Crewe, who runs a fish and chip shop, raised the question of VAT.

Boris Johnson said that after Brexit: "We'll take back control of our VAT - we'll be able to cut VAT on things that we currently can't under EU rules - sanitary products, you name it."

He was challenged by the presenter that the UK can still cut VAT on most things while still in the EU and he conceded that "we can on a lot of things but there are some things we currently can't".

The situation is that the EU places a minimum of 15% for the standard rate of VAT - the UK's current standard rate is 20%, so the VAT on most things could indeed be cut by five percentage points.

There is another list of products, including sanitary products, for which the minimum rate is 5%, which is the current rate in the UK.

The EU is in the process of changing EU law so that VAT on women's sanitary products can be reduced to zero, but the rules have not yet been adopted.

A look at the role of political parties in the UK.

Reality Check

Image source, Getty Images

How did the Conservatives estimate how an open border policy would increase net migration?

First they assumed that Labour would open the UK’s borders to everyone in the world in its first year of government.

The evidence for this assumption is very limited.

Labour has not yet published its manifesto. A motion passed at Labour conference this year calls on the party to “extend” free movement, but doesn’t say whether that’s to extend existing rights to EU countries after Brexit or to extend it to everyone in the world.

In fact, in a BBC interview, leader Jeremy Corbyn hinted to the BBC that the plan to extend free movement would cover family reunions and filling skill shortages.

Even if you believe that the premise is fair, the Conservatives’ sums are still open to challenge.

They looked at what happened with countries that joined the EU in 2004.

For example, the Hungarian-born population in the UK increased from 15,000 to 27,000 in the five years after Hungary joined the EU - nearly doubling.

So, the Conservative analysis goes, the non-EU born population (currently six million) would also roughly double in the next five years. After that it would grow more slowly, in line with current trends.

Over 10 years that would be about 760,000 extra people a year on average.

Add unchanged EU migration of 80,000 a year – since that’s what free movement with the EU gives us currently - and you end up with 840,000.

But it’s another big assumption to say that what happened in a small number of European countries would be repeated with countries across the globe.

New research has attempted to put a figure on an elusive piece of data but do the numbers stand up?

Reality Check
and BBC Monitoring

The Brexit Party is now running dozens of Facebook adverts aimed at Labour held seats – with the constituencies named in the ads ranging from Cambridge to Caerphilly.

They include the same message: “Only The Brexit Party can defeat Corbyn's Labour and STOP a Second Referendum.”

The Brexit Party has been relatively quiet on the Facebook ad front recently so this is a substantial batch.

These come after Nigel Farage announced that the Brexit Party would not be standing in Conservative held seats. Before this Brexit Party Facebook ads had been criticising Boris Johnson’s Brexit deal.

A video accompanying the latest adverts claims that Jeremy Corbyn has “betrayed” five million Labour leave voters.

Reality Check has looked into this claim before.

We found that most estimates for the number of Labour leave voters fall between three and four million.

A link is also provided to a website encouraging people to register their name, email and postcode to pledge support.

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There's a wealth of election leaflets and ads encouraging tactical voting, but are some based on misleading information?

Reality Check

Image source, Getty Images

One in six patients waited longer than four hours in A&E in England during October - the worst-ever performance since the target was introduced in 2004, new data shows.

Political parties are generally in agreement about one thing - that the NHS needs more money.

But is money all it takes? To answer this, it's helpful to look at whether the NHS is getting the best out of its existing budget - and how that compares with other countries.

BBC Reality Check has looked into the subject.

Plus if you care about what the parties are promising on the NHS in this election, here are some of the key things to watch out for in their manifestos.

Labour says it would introduce a shorter working week, but the Conservatives say it would "cripple the NHS".

Reality Check

Image source, PA Media

Today Boris Johnson said: “Every month of pointless delay [before leaving the EU]… is costing this country a billion pounds for nothing.”

This is something he has said a number of times. But under Mr Johnson’s EU withdrawal agreement, contributions to the EU budget are to continue until the end of the transition period, the end of 2020.

So further contributions to the EU would only happen if that deadline is extended, which Mr Johnson has said would not happen.

Read Reality Check’s analysis of this claim in more detail.

Reality Check

Image source, Getty Images

Labour has said it could introduce a 32-hour full-time working week, with no loss of pay, within 10 years, if it forms the next government.

But the Conservatives have attacked the plan, saying it would "cripple the NHS".

So what exactly is Labour's policy and is the criticism justified?

BBC Reality Check finds out.

People keep claiming on social media that a tax avoidance deadline has been driving the Brexit agenda.

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