Can we change the custom form style footer tax to VAT Total or VAT 15%

Good day, Dayan.

Currently, the option to change the custom form style footer tax to VAT Total or VAT 15% is unavailable in QuickBooks Online. I understand how this feature could enhance your ability to manage your sales transactions. Therefore, I will make a note of this as a suggestion to enhance your experience within the program.

You also have the option to provide feedback so that our developers can review your request and potentially incorporate it into future updates. Here's how to submit suggestions:

1. Select Settings ⚙, then Feedback.
2. Enter your comments or product suggestions. 
3. Click Next to submit feedback.

Additionally, you can explore third-party apps that may assist you in backing up your files in QuickBooks. Simply navigate to the Apps menu and select Find apps, then search for the app.

For additional reference about customising sales forms, please check out this article: Customise invoices, estimates, and sales receipts in QBO.

If you have any more questions regarding managing your sales and their formats, feel free to add them to this thread. We're here to help you.