Two abn numbers on invoice and first is incorrect

Hello there, @coolummowing. Welcome to QuickBooks Community!

I'd like to share some information about changing an ABN number within your QuickBooks Online (QBO) account.

You only have one ABN number recorded in QuickBooks. If you want to correct your ABN number, you can follow these steps.

1. Go to the Gear icon.
2. Select Account and Settings under Your Company.
3. In the Company tab, select the Company name section. From there, you can change the ABN.
4. Click Save. Then, Done to reflect the changes.

That should work. Since you're seeing two ABN numbers, it could be the other one is your client's ABN number. This happened when the Customer ABN number is ticked in the invoice template. Here's how you can verify it:

1. Go to the Gear icon. 
2. Select Custom form styles.
3. Select the template you're using. In the Content tab, review the ABN field and Customer ABN field. (If you don't want to include your customer ABN number, you can uncheck the field).
4. Then, Done.
   

See the sample screenshot below. The first one is the ABN number of your customer.

You can use these resources to manage your business and contact information. The other resource is where you can learn more about customising your sales forms.

• Learn how to update your business info in QuickBooks Online.
• Learn how to personalise and add specific info to your sales forms.

Please let  me know if you have more concerns. I'm always around to help you further. Stay safe and be well, coolummowing.

Image for reference 

Not the case here please see photo for reference 

Thanks for sharing your screenshot, @coolummowing. As mentioned by my peer above, the first one is your customer's ABN. 

You'll want to uncheck the box for Customer ABN in the Display section from the Custom form style so it won't appear on the invoice. 

 For future reference, read through this article to learn more about customising the appearance of your sales forms to make them look personalise: Customise invoices, quotes, and sales receipts in QuickBooks Online. 

Let me know if there's anything else you need help with. I'd be happy to assist you more. 

No that didn’t work. It is in ticked and the same abns are on every invoice mine being the bottom one 

I see you’ve been through a lot trying to fix this behavior in QuickBooks Online, @coolummowing.

I appreciate you for performing the steps provided by my colleagues. I've read your original post, and I'm here to direct you to the right support.

Since none of the resolutions work for you, we would need to dig deeper as to what's causing the incorrect ABN numbers. To do so, I suggest contacting our QuickBooks Online Customer Care Team. They have tools like screen sharing to pull up your account and help you further investigate the issue.

Here's how to reach them;

1. Click Help in the upper right-hand corner of QBO.
2. Click Talk to a human, then type in Talk to a human.
3. Select I still need a human.
4. Click Contact Us.
5. Select between Send a message or Get a callback.

 I've also added some links below about customising templates and editing company settings in QuickBooks:

• Customise invoices, quotes, and sales receipts in QuickBooks Online
• Edit company settings in QuickBooks Online
• Record and make Bank Deposits in QuickBooks Online

Let me know how the call goes and if you have additional questions. I’m always here to keep helping. Wishing you the best, @coolummowing.