You've come to the right place for help. I'd be glad to share more info about creating invoices in QBO.
To answer your question, you can't create an invoice in QuickBooks with transactions that are both inclusive of tax and exclusive of tax. You'll have to use one of these options for your line items: Exempt (0%), Zero-rated (0%) and HST ON (13%). For more info on creating invoices, check out this helpful article: Create an invoice.
In case you need further assistance, feel free to contact our support team using this link here.
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