Funding for Citizens Advice bureaux has fallen by an average of 10 per cent this year, according to the charity’s national organisation.
It said today that bureaux in England and Wales helped 779,000 people in the first four months of the current financial year, which was 7 per cent less than during the same period last year.
Gillian Guy, chief executive of Citizens Advice, said the figures were "deeply concerning".
"It's now clear that cuts are beginning to disrupt our front-line services across the country," she said.
The national organisation collated figures from local bureaux, which are independent charities. It discovered that 43 per cent of bureaux income comes from local government and 15 per cent from the Legal Services Commission, which runs the legal aid scheme in England and Wales.
Changes to local and national funding are having an impact. For instance, Nottinghamshire County Council has reduced funding to bureaux in the county by 60 per cent.
Cambridge CAB is worried that government changes to legal aid funding could result in it losing all its legal aid funding, which accounts for 25 per cent of its income.
Citizens Advice did not respond to questions about whether the cuts had led to a reduction in the number of staff employed by bureaux.