The United Nations Children's Fund says Budget funding to help children must stop being a political football.
Changes to Working for Families assistance will mean 280,000 families will receive slightly more, but more than 100,000 families will receive less and about 7000 will lose all entitlement.
UNICEF says the changes were to be expected in the current financial situation.
But executive director Dennis McKinlay says the whole system of supporting children needs to be overhauled so money spent to help children is viewed as an investment, not a cost.
Mr McKinlay says children deserve stable cross-party support, just as people receiving superannuation do.