David Davis has dismissed the two-week deadline set by the chief EU Brexit negotiator for the UK setting out how it will meet its financial obligations.
The deadline the deadline set out by Michel Barnier on Friday.
He said the real deadline was in December and warned the EU not to expect a figure or a formula by which the UK's obligations would be calculated.
It comes after the most recent round of Brexit talks once again failed to make a substantial progress towards completing negotiations on withdrawal issues including the 'divorce' bill.
Mr. Barnier indicated that the UK would have to set up a commitment more within two weeks, or it would not be possible to move talks on the transition and trade at the December European Council.
But asked about the deadline, Mr Davis said: "In every negotiation each side tries to control the timetable. The real deadline on this of course is December. It's the December council.
"Your viewers are all taxpayers I suspect, one way or another, and they would not want me to just come along and give away the billions of pounds.
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So,
If Ms May fails to gain talks on, it could substantially delay the already tight schedule of negotiations and even destabilize her administration.
She is under pressure from Tory eurosceptics to walk away from talks if the EU does not allow progress before Christmas.
But Mr Davis made clear what his EU counterpart should not expect, when asked about whether the UK would be able to secure 'sufficient progress' on the divorce bill to move talks forward.
He said: "They invented this phrase sufficient progress, right? It's in their control what it really is.
"But one of the reasons they did that is because we said 'alright we' ll do this sequencing, but do not imagine you 'll have a number or a formula at the end of it. We'll get you a 'before you move on to the next stage'.
"They accepted that, so it's not to be expected that someone is going to come along and say here os an extra £ 5bn or whatever."
At the end of the latest round of Brexit talks, Mr Barnier was asked whether the UK only had two weeks to make progress before the December Council meeting, to which he replied simply: "My answer is yes."