Britain's Foreign Secretary has said this week is the "moment of reckoning" for Brexit trade deal talks and should be a "wake up call" for the European Union.

The UK's chief Brexit negotiator, David Frost, and the EU's lead Brexit negotiator, Michel Barnier, are due to hold another round of key negotiations in London next week, as they look to agree a trade deal before autumn sets in.

Informal talks this week between the two men failed to find a breakthrough ahead of the eighth round of formal negotiations, which begin tomorrow.

Both sides want a deal agreed next month in order to have it signed off by both Brussels and London by the end of the transition period on 31 December .

Differences remain between the two sides on issues such as fishing and the level of taxpayer support the UK will be able to provide for businesses.

Mr Raab told the BBC's Andrew Marr programme that the UK has got to a position where there are only two points holding them back - fishing and state aid - and they cannot accept that the EU will control their laws. 

"That is the reason we are leaving," he said. "No other country goes into free trade negotiations with the EU or anyone else on that basis and the EU wouldn't accept that if we insisted on it."

He said they want a deal with the EU and the "arm of friendship and goodwill" is there, but there are two outstanding issues. 

He said having seen the UK fishing industry "pretty much decimated" as a result of EU membership, he said the EU is saying the UK should keep control and access to their own fisheries permanently low.

"That can't be right," he said.

Meanwhile Mr Frost has said that the UK government is not "scared" of walking away from talks with the EU without a deal and vowed not to blink in the final phase.

In an interview with the Mail on Sunday newspaper, Mr Frost said the UK was preparing to leave the transition period "come what may" - even if that meant exiting with no deal, which officials have dubbed a so-called "Australian-style" arrangement.

Mr Frost told the newspaper the UK would not agree to being a "client state" to the EU and said Theresa May's administration had allowed Brussels to believe there could be an eleventh hour concession on a trade deal.

He said: "We came in after a government and negotiating team that had blinked and had its bluff called at critical moments and the EU had learned not to take our word seriously.

"So a lot of what we are trying to do this year is to get them to realise that we mean what we say and they should take our position seriously.

"We are not going to be a client state. We are not going to compromise on the fundamentals of having control over our own laws."

He ruled out accepting level playing field terms that "lock us into the way the EU do things" and argued that wanting control over the country's money and affairs "should not be controversial.

"That's what being an independent country is about, that's what the British people voted for and that's what will happen at the end of the year, come what may."

The Mail on Sunday reported that Downing Street has created a transition hub, with handpicked officials across government departments working to ensure the UK is ready to trade without a deal when the transition period ceases on 1 January 2021.

The unit will work with Cabinet Office Minister Michael Gove, who has led the British government's work on no-deal preparations since last year.

Mr Frost said: "Obviously, lots of preparation was done last year, we are ramping up again and have been for some time under Michael Gove's authority."

"I don't think that we are scared of this at all. We want to get back the powers to control our borders and that is the most important thing.

"If we can reach an agreement that regulates trade like Canada's, great. If we can't, it will be an Australian-like trading agreement and we are fully ready for that."

His comments came as the EU sought to dismiss a report in Britain's Telegraph newspaper that Mr Barnier would be "sidelined" before the talks were over so European leaders could thrash out a deal before the deadline.

But EU spokesman Sebastian Fischer tweeted: "Whoever wants to engage with the EU on Brexit needs to engage with Michel Barnier.

"He is the EU's Brexit chief negotiator and enjoys the full trust, support and confidence of the EU 27.

"He has a proven track record of leading successful Brexit negotiations on behalf of the EU."