The supermarket giant said it will shut counters across 317 of its supermarkets where it has seen “lowest demand” amid changes in customer habits.
It is understood the move will impact hundreds of workers, although the retailer did not disclose the total number of affected staff.
It added that it will shut seven of its 13 Jack’s discount stores, impacting 130 jobs. The six remaining outlets will become Tesco stores.
Tesco UK and Republic of Ireland chief executive Jason Tarry said: “Our Jack’s brand will continue to be sold across Booker and our symbol brands, bringing great value and quality to even more customers.”
He added: “We want to thank our Jack’s colleagues for all they have done and taught us.”
“Our priority is to find roles within our wider business for all the colleagues who want to stay with us.”
Retail trade union Usdaw said it would now enter into consultation talks with the supermarket, claiming around 1,600 jobs could be at risk under re-structuring plans. Plans also include a restructure of night shift operations, as well as the closure of some in-store counter services and the Jack’s store format.
Daniel Adams, Usdaw national officer said: “Tesco has informed us that they are looking to undertake a number of restructures across the business that could put around 1,600 jobs at risk. Clearly this will be incredibly unsettling for those who may be affected.
“We should not forget the role that key workers have played throughout the coronavirus pandemic and to receive this news is devastating.
“Usdaw will do all we can to support members throughout the process and we will fully engage in consultation with the business with a view to protecting jobs and, where this is not possible, securing the best possible deal for those affected.”