In Odoo, handling different price displays for B2B and B2C customers is a common requirement. By default, Odoo allows you to display either tax-included or tax-excluded prices globally, but to differentiate between B2B and B2C, you need to configure user groups.

1. Activate Developer Mode: This step enables advanced configuration options.
2. Website Configuration: Set your website to display tax-excluded prices by default. This will serve your B2B customers.
3. Public Users Configuration:
   • Navigate to the Public Users group and ensure it is inheriting the group Tax Display B2C.
   • Remove the Tax Display B2B group for public users (non-logged-in users), so they see prices with tax included.
4. Portal/B2B Users Configuration:
   • For users who log in (your B2B customers), assign them to the Tax Display B2B group, which will display prices without tax.

By configuring user groups this way, non-logged-in users (typically B2C customers) will see tax-included prices, while logged-in users (B2B customers) will see prices without tax. However, you must ensure that users are not assigned to both tax display groups, as Odoo does not allow a user to belong to both simultaneously.