Confirmation that the final stage of easing lockdown restrictions in England will be delayed until 19 July has led to calls from some sectors for furlough to be extended beyond September.

The delay means most remaining curbs on social contact will continue beyond 21 June, when they had been due to be lifted.

Prime minister Boris Johnson told a Downing Street press conference yesterday that he could not rule out the possibility the date could be pushed back further, after scientists advising the government warned of a “significant resurgence” in people needing hospital treatment for Covid-19 if stage four of easing the lockdown went ahead next week.

It comes amid rising cases, driven by the more transmissible Delta variant of the pandemic.

Kate Nicholls, chief executive of trade group UKHospitality, is among those now calling for greater support from the chancellor.

She said: “This four-week delay to lifting restrictions will cost the [hospitality] sector around £3bn in sales, put at risk 300,000 jobs and have a knock-on impact on bookings throughout the summer and into the autumn.

“Simply put, if the supports provided by the chancellor are not sustained and adjusted, businesses will fail and getting this far will count for nought.”

TUC general secretary Frances O’Grady is also calling for an extension to the furlough scheme and urgent support for the hospitality and arts sectors.

He said: “The government must step up and provide urgent targeted support for these industries. We cannot afford for more companies to go to the wall, taking good jobs with them.

“The Chancellor also needs to announce now that he will extend furlough for as long as is needed, rather than cutting it off abruptly in three months’ time.

Rishi Sunak

“Working people need this certainty now – not a rollercoaster approach to protecting livelihoods.”

But Rishi Sunak has so far rejected a calls from business leaders to extend furlough, despite the delay in ending lockdown.

The scheme, which pays 80% of people’s wages, is due to start being wound down at the end of this month.

From 1 July. the government’s share will fall to 70% with employers contributing 10% as part of a “tapered” withdrawal of the scheme.

A Treasury source said that the furlough scheme was already “one of the most generous in the world”.

Sunak is also resisting calls to extend the business rates holiday for retail, hospitality and leisure. The relief is due to fall from 100% to 66% on 1 July, although it will remain in place until March of next year.