The government also de-coupled its $1.6 billion childcare package from a plan to abolish family tax benefit supplements worth up to $726 a year per child. The Turnbull government wants its childcare package to pass before the May budget. Credit:Alex Ellinghausen Senate crossbenchers instead agreed to freeze Family Tax Benefit Part A and B payments for two years, rather than allowing them to increase at inflation, which will save $2.4 billion over three years. Wealthy families earning over $350,000 a year will also be banned from accessing childcare subsidies under a deal with the crossbench. The deal clears the way for the childcare changes to pass Parliament by Thursday - two years after then social services minister Scott Morrison first announced the overhaul. Government sources said they were hopeful of both the childcare package and savings measures passing by the end of the week.

It would be a much-needed legislative victory for the government ahead of the May budget and a likely defeat on proposals to water down the Racial Discrimination Act. Independent senator Nick Xenophon said the new savings measures were a "significant improvement" on previous proposals that would have had a "devastating" impact on families. "This is a breakthrough," Senator Xenophon told Parliament. "This is not ideal but this is, in my view, the least worst option in dealing with these issues in a way that will not cause severe hardship to many thousands of families as was proposed in the omnibus bill." The omnibus bill would have scrapped the energy supplement for new recipients, required jobseekers under 25 to wait four weeks before accessing income support and cut the pension to pensioners who spent more than six weeks overseas.

The government has also shelved a plan to put a 20 week cap on the paid parental leave that parents can access from employers and the government. Independent senator Derryn Hinch revealed he had struck a deal to strip childcare subsidies from families earning a combined income over $350,000 a year. This will affect around 15,000 families. Prime Minister Malcolm Turnbull said the childcare changes were "a very important social and economic reform" that would allow low-income families to access childcare for as little as $15 a day. The reforms will replace the current rebate and subsidy with a single-means tested payment targeted at low-income families with high workforce participation.

The $7500 annual rebate cap will be abolished for families earning up to $185,000 a year. According to cameos distributed by the government, a family on a combined income of $80,000 with two children in childcare would be $3424 a year better off a year under the reforms. A family earning $150,000 a year with one child and both parents working full-time would be $813 better off a year. This would be offset for some families by the freeze in family tax payments. According to Labor, a single parent on $60,000 a year with two high school children would be $270 a year worse off.

Labor early education spokeswoman Kate Ellis said: "We do not think these changes are the silver bullet and the solution to all of Australia's child-care problems. "We do not support the overarching principle that the only way you can support Australia's childcare system is by robbing that money out of the pockets of other Australian families." Government ministers pointed out that Labor had frozen family payments several times when in government. The peak childcare bodies, which are broadly supportive of the government's reforms, applauded the government for splitting the omnibus bill. But the groups urged senators to push for a guaranteed minimum of 15 hours of childcare a week per week rather than 12 hours to ensure disadvantaged children have access to early childhood education.