ContributionsMost RecentMost LikesSolutionsRe: Change of ABN and STP Tax File Declaration hi Sorry not that easy, I am having all sorts of issues, there is a sequence you need to follow I suggest you ring MYOB :) Changing over Business & dealing with STP One of the partners passed away so I have had to change the business mid year close off the STP and re-do the wages using the new ABN. My accountant arranged to have the the payroll changed to $0.00 and I went into payroll reporting and changed the YTD to reflect the old ABN then the new, a bit of a long process but I thought everything was OK ! my payroll activity report are correct and show the new ABN, but my account rang to say evertyhing is still in the OLD ABN at the ATO when I print of the reports from the payroll reporting this confirms exactly that. Hope someone can help before I throw the compunter accross the Room..........Just kidding..........or maybe not !