Why is the total amount including tax not displayed?

If your quote or invoice does not show the total amount including tax, check the following points:

1. Activation of tax management at the application level

Make sure you have enabled tax management through the main menu: "Settings > Taxes".

Once activated, add at least one tax.

2. Activation of tax management at the document level

Verify that you have enabled tax management in your quote or invoice.

To do this, in document editing mode, click on the contextual menu  and then click on the "Settings" button .

3. Verification of entries in the document

Verify that your different entries such as items and custom entries have a tax specified.