English councils propose 'Tesco tax'
26 July 2014 Last updated at 08:46 BST
A group of local councils in England is formally asking the government for new powers to tax large supermarkets, a plan dubbed the "Tesco tax".
Derby City Council, which is calling for the proposal, says the levy could raise up to £400m a year.
A similar tax already operates in Northern Ireland and Scotland.
Jon Brain reports.