GMB union has written to Brighton and Hove Council around equal pay claims that could be worth tens of millions of pounds.
The claims, which could affect thousands of women, cover roles right across the council and reference issues dating back several years.
The trade union claims the council has been alerted to the problems ‘but has taken no action to compensate.’
Lib Whitifeld, GMB Senior Organiser, said: ‘For years this low paid, predominantly women worker force has been paid less than those in male dominated jobs - jobs rated equivalent under the council’s own job evaluation scheme.
‘The money stolen from our members has a significant impact on their day to day lives; they’ve struggled to pay their bills and forced to work longer hours rather than being with their families.’
She added: ‘This council is responsible for not only the loss of pay, but the stolen time and quality of life of these workers.’
A council spokesperson said: 'We have received correspondence from the GMB this morning. We will consider what the union has communicated and will setup a meeting to discuss the issues in due course.'
Check out: Righting the wrongs of equal pay