Invoice issue with Tax not added to Subtotal

unknown

I'm using 2019 Quicken Home and Business. After entering all information for an invoice, when I enter the Tax amount, Quicken does not add it to the Subtotal when I <tab> to the next field. I have tried just pressing <enter> after inserting the Tax amount, but the invoice is saved and the window closes.

UKR

Sales Tax is not added to the individual line item. That simply is Quantity x Rate.
The Subtotal line is the total of all line items before tax, whether marked taxable or not
At the bottom of the invoice, tax is calculated from all items marked taxable.

If that doesn't explain it, or if you still have an issue, please provide an image snapshot of your invoice and explain your situation in more detail.