Give Services Australia your best estimate of your family’s adjusted taxable income and update it if your work, relationship, care arrangements or children’s circumstances change. Keep your income estimate realistic, because payments may be balanced after the end of the financial year and an overpayment could need to be repaid. Check whether you need to lodge a tax return and report shared-care arrangements accurately, as these can affect Family Tax Benefit. You can review your circumstances and payment options through myGov or the official Services Australia website.