Boris Johnson chose not to raise the issue of the Brexit divorce bill with Donald Tusk at the G7 summit

Britain could be forced to pay the entire £39 billion Brexit divorce bill even if it leaves the EU without a deal, the government’s lawyers have suggested.

Boris Johnson has said that he may agree to hand over no more than £7 billion after commissioning government lawyers to calculate how much the UK would be legally obliged to pay.

However, The Times has been told that the lawyers have produced a “range of scenarios” assessing the UK’s legal obligations in the event that it leaves without a deal.

These include paying the entire Brexit divorce bill if the European Union takes legal action.

“The £7 billion figure is the best-case scenario,” a source said. “There’s a range of other scenarios where it’s far higher, including