Returning to work? Here's what to tell Centrelink

You sort out the childcare place, you sort out the start date, you sort out who's doing daycare drop-off, and then somewhere in the back of your mind is a nagging thought: you're pretty sure you're meant to tell Centrelink something, and you're not sure what (or what happens if you get it wrong).

The short version is that going back to work changes two things, and keeping them current is what stands between you and a surprise debt down the track. It's a ten-minute job in myGov once you know what you're looking for.

Here's what changes and what to update.

What do you need to tell Centrelink when you go back to work?

When you return to work, two things change that Services Australia needs to know about: your family income estimate and your recognised participation, which is your work and study hours. Both feed your Child Care Subsidy, so keeping them up to date keeps your subsidy accurate and helps you avoid a debt when your payments are balanced after the financial year. You can update both, and report other changes, through your Centrelink online account linked to myGov.

Less Googling,

more finding.

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How to update your family income estimate when you return to work

To update your family income estimate when you go back to work, sign in to myGov, select Centrelink, and enter your new combined income for the financial year. Your estimate is your best guess of your combined adjusted taxable income, and Services Australia uses it to work out your subsidy each fortnight. Going back to work lifts that figure, so update it as soon as you know your new pay, ideally before your first payday.

A couple of things trip people up here. Your estimate covers the full year, so a mid-year return means only part of the year is at your new salary; estimate the whole year, not the fortnight in front of you. It includes both partners' income. And if you had Parental Leave Pay, that counts too, because it's taxable income.

The exact path is:

From your myGov Centrelink homepage, select My family
Then Family assistance
Then Family income estimate, and follow the prompts.

The Centrelink online account help guide has step-by-step screenshots if you'd like to follow along.

Do you need to update your activity for Child Care Subsidy?

You only need to update your activity if you're going back to enough work to want more than three days of care. Since the 3 Day Guarantee started on 5 January 2026, every eligible family gets at least 72 hours a fortnight regardless of activity, and you need more than 48 hours of recognised participation each per fortnight to reach up to 100 hours. Recognised participation is the work, study and related activity Services Australia counts when working out your subsidised hours.

What that means in practice: if you're going back to enough work to want four or five days of care, update your participation so your subsidised hours reflect it. If you're settling in at three days a week, the guarantee already has you covered and there's nothing extra to do on the activity side. Either way, you report changes to your circumstances through your Centrelink online account.

What happens if you don't update your income estimate?

If you don't update your income estimate, you can end up overpaid and owing money back at tax time. Your subsidy is paid on your estimate during the year, then Services Australia balances it after 30 June against your actual income. If you underestimated, which is easy to do when you go back to work partway through the year, you'll have been overpaid and you'll need to pay the difference back.

To soften that, Services Australia withholds 5 per cent of your subsidy across the year as a buffer. The safest habit is to keep your estimate current and lean slightly high rather than low. Overestimate and you get the difference back at balancing; underestimate and you can end up with a debt. A quick update the moment your pay changes is the cheapest insurance there is.

Your return-to-work Centrelink checklist

Run through this once your start date is locked in:

Update your family income estimate with your new salary, for both you and your partner.
Include taxable payments like Parental Leave Pay in your estimate for the year.
Update your recognised participation if you're moving beyond three days of care.
Check your withholding. The default is 5 per cent; you can lift it if your income has jumped, to reduce the risk of a debt.
Confirm your child's enrolment details in myGov so your subsidy flows to the right service.
Report other changes too, like a change in relationship status or care arrangements. You don't need to tell them if you switch centres, as long as it's still an approved service.

Getting it sorted

This is one of those admin jobs that feels bigger than it is. Once your income estimate and your activity are current, your subsidy does its job in the background and you can get on with the harder parts of going back to work.

If you haven't nailed down your days yet, our Child Care Subsidy calculator helps you see what your subsidy looks like at different work patterns before you commit, so the number you put into Centrelink is one you've already checked. For everything beyond the paperwork, our guide to planning your return to work covers the rest.