SAHM for the whole financial year

[Rowellen]

You will need to lodge a notice to say you don't need to lodge a tax return. Here is last year's info regarding this from the ATO. It will be slightly different this year due to changed thresholds but basically the same requirements. I'm pretty sure that the ATO will tell centrelink but could be wrong.

[briggsy's girl]

If you don't need to lodge a tax return you need to notify both ATO and fao. ATO is an online form. Fao can be notified via your online services after July 1