KAD (activity code)
The code that registers a business's or freelancer's activity with the tax authority. It can determine which rules and obligations apply.
KAD is an activity code from the Hellenic Statistical Authority's classification. It is registered with the tax authority and in the General Commercial Registry (GEMI). A business can hold more than one.
The code can affect which rules, rates or obligations apply to your business. Register it accurately, and update the tax authority when your activity changes.
Official source: AADE (Greek tax authority)