Regulation (EU) 2016/679

Controller or processor? Decide per processing activity

How to classify data-protection roles from actual decision-making rather than labels in a contract.

Written and reviewed by Fredrik Surtell ·

What decides whether an organisation is a controller or processor?

A controller determines the purposes and essential means of processing. A processor handles personal data on the controller’s behalf and documented instructions. The facts of each processing activity control the role.

Operating sequence

  1. 01

    Describe the processing purpose, data, people, retention, recipients, and essential system choices.

  2. 02

    Record who makes each essential decision and who can change it.

  3. 03

    Align notices, contracts, instructions, sub-processing, rights handling, and incident duties to the resulting role.

Failure modes to avoid

  • Assigning one role to a company for every activity.
  • Assuming a “processor” contract overrides actual independent decisions.
  • Ignoring joint control where parties jointly shape purpose and essential means.

The source remains the authority.

EDPB Guidelines 07/2020 on controller and processor concepts