An estimated 40,000 households could be hit by the new £500 a week benefits cap which will be rolled out by the Government today.
Households could lose up to £90 a week under the new proposals which is expected to save £275 million a year from the welfare bill.
National implementation will begin in July, with the policy fully in force by the end of September.
Work and Pensions Secretary Iain Duncan Smith said:
The Benefit Cap sets a clear limit for how much support the welfare state will provide - the average wage for working households.
But it's also a strong incentive for people to move into work and even before the cap comes in we are seeing thousands of people seeking help and moving off benefits.
More top news
Mostly cloudy with rain elsewhere.
A man and woman have appeared in court charged in connection with the death of Olympic cyclist Chris Boardman's mother.
A Labour government would bring contracts signed under the Private Finance Initiative back into the public sector, John McDonnell has said.