Thank you for reaching out to us, @wwwjudylue. We are thrilled to see your first post in our Community space. It's our pleasure to provide you with information regarding the error message when saving an invoice in QuickBooks Online (QBO).

We understand how runtime issues can disrupt your business activities within the program. Please know that we are committed to resolving this issue. We've received reports about the error message "Unexpected Tax Line found. Unable to save transaction" when creating an invoice. We recommend reaching out to our support team so that they can add you to the list of affected users. Please be assured that our software engineers are working diligently to provide a resolution, and we'll keep you updated via email.

To contact support:

1. Sign in to your QuickBooks Online company. 
2. Select Help (?).
3. Click either tab to get started: Assistant or Talk to Human.
4. Search Contact Us,  then Start a chat with a support expert.

Please ensure to review their support hours to know when agents are available. This way, you can contact them at a time that is convenient for 

you.

We have also included some articles that guide managing invoice-related tasks:

• Create invoices in QuickBooks Online
• Customize invoices, estimates, and sales receipts in QuickBooks Online
• Set up and send progress invoices in QuickBooks Online

If you have any further questions or need assistance with other QuickBooks challenges, please don't hesitate to reply to this message or create a new post in our forum. The Community is available 24/7 to help you, @wwwjudylue. Have a great day!

I am also getting this error and support hasn't been able to fix it. Please advise how to resolve this issue. Thank you!

Thanks for joining this thread, @Karenste99.

I see the challenges you've been through with the error when saving your invoices. Rest assured, I'm here to share insights and help resolve this. 

We can verify the item used when creating an invoice. There may be a glitch when you add the service item. 

If the issue persists, I recommend contacting our support team directly. We've enhanced the procedure for reaching our support team. You can go directly to the Help menu if you'd like to speak with one of our representatives. This way, they can further investigate what's causing the error.

Here's how: 

1. Sign in to your QuickBooks Online company.
2. Select Help (?).
3. Choose either tab to get started:

• Assistant: Get quick, personalized answers. Select a suggested option, or type a question or topic you need help with. If you decide you need further help, you can still Talk to a human.
• Search: Search the QuickBooks Online knowledge base directly, or select Contact Us and choose a way to connect with us:
  • Start a chat with a support expert.
  • Get a callback from the next available expert.

Additionally, I'll be sharing this link to help receive and track invoice payments in QuickBooks Online: Record invoice payments in QuickBooks Online.

Keep me in the loop if you have concerns managing your invoices in QBO. I'll be around to lend a helping hand. 

I am getting this error now and can not create any new invoices. have they found the problem and fixed it?

June 23 2024  

Thanks for checking this issue, Paul. Let me provide you with updates about the error.

Our software engineers are ongoing investigating the "Unexpected Tax Line found. Unable to save transaction" error message (INV-105400). For now, I recommend contacting our Technical Support so that they can look up your account and add you to the list of affected users. That way, you'll receive email updates on the status of the in-progress investigation.

Here's how to contact them:

1. Sign in to your QuickBooks Online company.
2. Click the Help menu.
3. Enter a brief description of your concern.
4. Select your preferred method to connect: Start a chat or Talk to a human.

Our support hours for Plus, Essentials, and Simple Start are Monday - Friday, 6 AM to 6 PM PT, and Saturday, 6 AM to 3 PM PT Advanced, any time, any day. You can also directly reach our support through this link: Contact Support.

Furthermore, once this issue is resolved, you can refer to these articles for assistance in managing your customer payments and customizing your invoices:

• Record invoice payments in QuickBooks Online
• Customize invoices, estimates, and sales receipts

I'm always around if you have other questions about unexpected invoice problems. We'll do our best to fix them promptly. Take care.

Unexpected Tax Line found. Unable to save transaction.