Thank you very much Chris.

The issue was the settings of vat in accountant module ( wich have to be tax included).

Hi Zoé,

you can create a product normally, add your tax and leave the sales price empty. Make sure that the product is available at the point of sale by ticking ‘Available at PoS’ in the ‘Point of Sale’ section (Odoo 18) or in the ‘Sales’ section (Odoo 17 downwards).

Open your PoS and select the new product - it is placed in the shopping basket with quantity = 1 and price = 0, then select the product again in the shopping basket, click on ‘Price’ in the lower action menu and then enter your price (with or without tax, depending on the setting at the PoS).

Regards,

Chris Dominiak (Intero Technologies GmbH)