The British government believes there should be parallel talks on the terms of the UKs withdrawal and the future trading relationship. The timeline is key to Mays hopes of completing a free trade agreement by the end of the two years allowed for negotiations under the Lisbon treaty.
However, political parties in the Czech parliament have joined senior figures in Rome and Berlin in backing the European commissions line that there can be no such talks until Britain has agreed to pay its bills and has struck an agreement on the rights of EU nationals.
Britains bill is expected to come to about 60bn, although the exact figure will change depending on when exactly the UK leaves the EU.
In a statement, the Czech parties said: Although an agreement on a future relationship between the United Kingdom and the EU is, from a long-term perspective, a key part of the process, it should be preceded by an agreement on the basic outline of the conditions for the UKs withdrawal from the European Union, which will serve as the framework for negotiations on future relations.
Jean Claude-Juncker, the commission president, insists the UK will have to settle its bills before significant talks about the future can begin. On Tuesday, he said the cost of Brexit to the British Treasury would be very hefty. Juncker met Angela Merkel, the German chancellor, on Wednesday night.
At a meeting of the EU27 and the commissions chief Brexit negotiator, Michel Barnier, in Brussels last week, it was suggested that Britain was likely to be asked to pay about 57bn (£48bn) in instalments over the next six years.
May had been widely expected to trigger article 50 talks at a European council summit in Brussels on 9-10 March. However, on Thursday, the Irish prime minister Enda Kenny said he believed the moved would be delayed a little.
https://www.theguardian.com/politic...r-uk-to-pay-60bn-exit-bill-before-trade-talks