Some relief for parents facing rising childcare costs.

Finance Minister Nicola Willis has unveiled the Family Boost policy- which will let parents and caregivers claim back up to 25 percent of childcare costs, up to $75 a week.

Parents are being told to start collecting invoices from July, to begin being refunded every three months from October.

Early Childhood Council CEO Simon Laube says the option where parents would get money back more regularly was going to take about three years to build.

"So they've gone with something that's kind of quick and dirty- but we have a problem today, don't we? So we can't be waiting around for three years."

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