Although the ATO has named this schedule Change Address, the same form is used for advising the address of a new client for IT or AS purposes.
Therefore, if you are advising the address for a new client, you should NOT lodge the CUADDR until the new client has been added to your IT or AS list by the ATO. The ATO has informed software developers that once the CUREL is lodged, updating their records is instantaneous. Failure to ensure that the client is on the relevant list, will result in your CUADDR being rejected on lodgment.
This is a multiple schedule for those occasions when your client might change addresses more than once during the income year.
The CU forms are available from the Preparation > SchedulesIndex or from the navigation pane under ATO forms when the return is open.