There Is No Automatic 50/50: How Parenting Arrangements Are Really Decided in Australia

If there's one belief we correct more than any other at first appointments, it's this one: "the law says it starts at 50/50." It doesn't - and understanding what the law actually says will save you months of arguing toward a starting line that doesn't exist.

What the law actually asks

Australian family law doesn't begin with a formula. It begins with a question: what arrangement is in the best interests of this child? That is the paramount consideration under the Family Law Act, and everything else - including how much time each parent gets - flows from it.

When the Federal Circuit and Family Court of Australia decides a parenting case, it looks at matters like the safety of the child and each parent, the child's own views (given weight according to their age and maturity), each child's developmental, psychological and emotional needs, the capacity of each parent to meet those needs, the benefit of the child having a relationship with both parents where it's safe, and anything else relevant to the particular child. Nowhere in that list is a presumption that time will be split equally.

Where the 50/50 myth came from

For a period, the legislation contained a presumption of "equal shared parental responsibility" - which was about decision-making, not time - and a requirement to consider equal time in certain circumstances. That framework was widely misunderstood as an entitlement to 50/50, and it has since been reformed. Today the law is simpler and blunter: best interests, assessed on the evidence, child by child.

What arrangements actually look like

Because every family is different, orders vary enormously. Some children genuinely thrive in equal-time arrangements - typically where the parents live near each other, communicate functionally, and the children are of an age where week-about works. Other children spend most time with one parent and substantial or significant time with the other - weekends, part of the school week, half of holidays. Where there are safety concerns, time may be supervised or, in serious cases, not ordered at all.

The practical variables that shape outcomes are usually unglamorous: how far apart the parents live, school logistics, the children's ages, who has been doing the day-to-day care, each parent's work patterns, and - above everything - safety. Family violence and risk change the analysis entirely, and the court treats them with priority.

What this means for your negotiation

Two things follow from the absence of a 50/50 starting point.

First, don't anchor your expectations (or your position in mediation) to a fraction. Proposals framed around your child's actual week - school, sport, sleep, transitions - are more persuasive to the other side, to mediators, and ultimately to a court than proposals framed around percentages.

Second, evidence matters more than assertion. The parent who can show a track record of meeting the children's needs, supporting their relationship with the other parent, and behaving sensibly under pressure is in a far stronger position than the parent with a spreadsheet of nights. (A related tip we give every client: assume every text message you send your former partner will one day be read by a judge. Write accordingly.)

Before court: the mediation step

In most cases, parents must attempt family dispute resolution and obtain a section 60I certificate before filing parenting proceedings - with exceptions, including urgency and family violence. Many matters resolve at or before mediation, and a resolution you shape together generally beats one imposed on both of you.

The short version

There is no automatic anything. The law asks what is best for your child, and answers it on evidence. Build your proposal around your child's real life, keep your conduct exemplary, and get advice early - the first weeks after separation shape the arrangements more than most people realise.

This article is general information about Australian family law, not legal advice about your situation. Parenting matters turn on their own facts - for advice specific to your circumstances, call Aegis Law Group on (07) 3709 7610 for a fixed-fee case assessment. We act in parenting matters across Brisbane and South East Queensland, including Legal Aid Queensland matters.