Cannot create proper tax rates for guest user purchases in Greece

Summary

In our country (Greece) we have some tax rates which apply conditionally based on whether the customer is a business or an individual and their physical location.

When the user is logged in, it's possible to handle this by changing his group and assigning a tax class to that group.

However when the user is not logged in, there's no possibility to apply different tax rates as the tax rules are based on tax classes assignable only to groups.

What's the proper way to address this situation in shops which are both B2C and B2B / Wholesale and they sell to random businesses as well without them necessarily having an account?

Examples

Basically I need to cover these scenarios .

This is just an example of a common use case as there are cases where they might be fully exempt from VAT tax obligations

Proposed solution

Here the ERP systems take into account the existence of a valid VAT ID to differentiate and apply the correct tax rules, maybe something like this is possible in Magento as well?

Release note

No response

Triage and priority

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.