Most Britons think Brexit is not worth it if it means a lower rate of economic growth, a Sky Data poll reveals.

Official figures released by the Treasury suggest the economy could be 3.9% worse off after 15 years as a result of Brexit if the UK leaves the EU under the government's deal.

They also forecast a 9.3% cut to GDP if the UK leaves the EU without a deal.

Earlier, Chancellor Phillip Hammond told Sky News that Brexit would have an economic cost "in all scenarios".

Responding to the Sky Data poll, just over half of Britons (51%) said that staying in the EU would be best for the economy.


More people think a no-deal Brexit will be best for the economy (24%) than Brexit with the government's deal (17%).

Asked if Brexit with the government's deal would be worth it if it means lower economic growth, just 19% think it would be, compared to 63% who say it would not.

A clear majority also think a no-deal Brexit would not be worth it if it means much lower economic growth.

Some 28% of people surveyed think it would be, while 57% think it would not.

Ministers were forced to publish economic analyses comparing four outcomes of Brexit on earlier.

The models looked at the economic impact of leaving the EU under Mrs May's deal, no deal, a Canada-style free trade deal and the Norway option.

However, there is no specific analysis of the withdrawal agreement that Mrs May is trying to push through Parliament.

The Irish backstop proposal has also not been included in any of the models.

And the authors of the report accept that, when making predictions for 15 years in the future, changes to technology, demographics and the wider economy are almost impossible to predict.

Sky Data interviewed a nationally representative sample of 1,560 Sky customers via SMS on 28 November 2018. Data are weighted to the profile of the population. Sky Data is a member of the British Polling Council and abides by its rules.

For full Sky Data tables, please click here.