How can I import total sales tax on one invoice that has multiple items with multiple sales tax rate?

Hi there, 

Importing your data to QuickBooks Online is an awesome feature that saves you time and effort. When importing invoices, the system will recognize the columns that are named according to the QuickBooks Online defaults. These fields will be mapped automatically if the following column headers are used (the fields marked with * are mandatory):

1. *Invoice number
2. *Customer
3. *Invoice date
4. *Due date
5. Item amount
6. Item tax code
7. Terms
8. Service Date
9. Item (Product/Service)
10. Item Description
11. Item Quantity
12. Item Rate
13. *Item Amount
14. Memo

If you use different column headers, then you'll have to manually map the fields while importing the transactions. To know more about how to import invoices in QuickBooks Online, check this detailed article: Import multiple invoices at once.

 In case you have other questions, feel free to contact our support team using this link here.