Changing the ABN

Hi Princess_R​ Shella_A​ Earl_HD​,

Our ABNs changed on 31/10/2025 as on my above message ( same company file, same software). I followed your instructions above and it worked for all employees except for an ETP amount for one employee who terminated on 25/09/2025 ( before the SBR). This ETP amount is showing on both income statements for the new ABN and old ABN. I tried  reversing out the original ETP pay but dated in 6/11/2025 rather than the original date 25/09/2025, it didn't work, the ETP amount is still showing on the income statement under the new ABN of the employee while the other pay categories are showing 0 as they should be.

Now adding to my unsolved tangle, I've just found that under the new ABN, the GST branch number in MYOB is 001, and the branch ID on the ATO business portal is 002. The first pay for the new ABN was processed and reported to the ATO on 06/11/2025 under the combination of new ABN + branch 001, I can see this pay on STP on the ATP portal even though then branch ID listed on the portal is 002. The ATO haven't gotten me for this yet but I think they will. How do I fix it? I'm scared that if I zero out the YTD for the combination of new ABN + Branch 001 and finalise it, then change to branch 002, update YTD for the new ABN + Branch 002, the ETP will be also showing on the income statement of new ABN + Branch 002, hence triple reporting

Could you please help me with clear step by step instructions to fix this?

Also I'm trying to understand how things work for STP reporting, can you please help with these queries:

- Please confirm when ABNs change in the same company file, same payroll software , then the BMS ID and employee Payroll IDs remain the same for STP reporting?

- If I change Branch ID in the same company file, same software, then the BMS ID and employee Payroll IDs remain the same for STP reporting?

-If the 2 above points are correct, If I change the Branch ID, I will need to zero out YTD figures for the combination of new ABN + branch 001, finalise it including the employee with the ETP issue. And then change the branch ID to 002, untick the finalisation, change YTD figures to reflect payroll for the combination of new ABN + branch 002, then run $0 for each active employee to update the ATO rather than send an update event, would this way exclude the already terminated employee with the ETP issue from being reported and finalised under the combination of the new ABN + branch 002, and in the end of FY, as this employee is still showing the list for finalisation, can I just not tick this employee for finalisation for the new ABN + branch 002?

I hope someone can help me out soon

Hi Le_Trinh,

Thanks for the update, sounds like you’ve been at this for a while.

On the ETP duplicate, it’s usually because the employee still has a non‑zero ETP/YTD under the new ABN. Suppose the old ABN’s figures are already correct and tax‑ready. In that case, you don’t need to switch back, just make sure that the employee’s YTD/ETP is $0 under the new ABN, don’t finalise them there, and send an Update event (or run a $0 pay) so the ATO refreshes that employee to zero on the new ABN. Only jump back to the old ABN if you actually need to fix or re‑finalise something on the old ABN.

On the branch number, I would treat it the same way as the change in the ABN number process. If you have anything recorded against the branch 1, zero out the pay history, then finalize. Then switch to the correct ABN branch, then re-input the pay history so it would be included on the correct branch number. 

Regards,

Genreve

Hi Genreve_S​ 

I've tried to remove the ETP amount under the new ABN  but nothing worked. 

• I zero'd out the ETP amount on YTD drop down on Pay History on the employee's card: it didn't work
• I reversed out the original ETP pay dated 06/11/2025 under the new ABN ( whereas the original ETP pay was recorded 25/09/2025 under the old ABN): it didn't work

Also while I have you here can you confirm that this is where I need to change the branch ID number: In STP-> ATO setting? I've attached the screenshots of ATO setting on MYOB STP and ATO Business portal

Hi Le_Trinh, 

Thank you for the screenshot and additional information. In your concern, it's best to have real-time responses with the support team. This way, they could walk you through the steps for your ABN change and check on potential issues with the processes you went through.

I recommend reaching out to MOCA, our virtual assistant, to get connected with our live chat team. 

Regards,
Genreve

MYOB Support is still working on it and I don't know how long it's going to take, but I'm stressed out so much