An estimated 150,000 children have been lifted out of poverty in the six months since Labour scrapped the two-child benefit limit.
Labour party chair Bridget Phillipson MP will reveal the scale of change delivered by scrapping the cap in a speech on Sunday.
Speaking at Labour party conference, she will urge members to stand proudly on Labour’s record in government and to organise to change Britain for good, warning against the threat of Nigel Farage in Downing Street.