A specialist budgeting service for families doesn't believe a change to the child support system is needed.
A bill currently before a Parliamentary select committee is proposing changes to how child support is calculated and shared care defined.
Federation of Family Budgeting Services CEO Raewyn Fox says the system may become more complicated for no reason.
"I haven't necessarily had any cases where we've had customers that are saying 'this is really unfair, this is disadvantaging us'.
Ms Fox says any changes should make sure children are put first, which won't happen if parents can't understand the new system.
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