The recommendations are made in a policy pamphlet, Turning Up the Volume on Child Poverty, which includes contributions from the three major political parties and was launched at the charity's annual conference in London.
The Government should build on the free entitlement for three- and four-year-olds and offer an 'early years childcare guarantee for every parent to ensure that there is flexible and affordable childcare for all who need it,' it said.
To meet its target of eliminating child poverty by 2020, the Government should invest £3 billion immediately in tax credits and benefit. The working tax credit for couples with children should rise to £91.31 a week, at a cost of £1.6 billion, to lift 200,000 families out of poverty.
Other proposals include measures to support parents into 'decent and sustainable jobs', ensuring schools are 'drivers to narrow the gap in achievement' by emphasising the role of extended services, and building a 'system of seamless support for parents and families', with £250m in specific funding to implement the Children's Plan.
4Children chief executive Anne Longfield welcomed the cross-party commitment to eradicate child poverty, but said urgent action was needed.
Commenting on the difficulty of meeting child poverty targets, children's secretary Ed Balls said, 'We're not going to abandon these goals just because the going has got tough.'
His Tory shadow Michael Gove called for an end to the penalising of couples in the tax credit system to direct an extra £3 billion a year to many of the poorest families.
Liberal Democrat spokesman David Laws called for an extra £500m a year in education for children aged under five in workless households, who do not receive the childcare element of the working tax credit.
