What is the GDPR right to object (Article 21)?
GDPR Article 21 lets a person object to processing of their data. Objection to direct marketing is absolute and must stop. For processing based on legitimate interests or a public task, the objection is qualified: the controller must stop unless it shows compelling legitimate grounds that override, or needs the data for legal claims.
Applies to: Controllers processing personal data of people in the EU on the basis of legitimate interests, a public task, or for direct marketing; the right to object applies to any organisation within the GDPR's scope.
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The right to object is the GDPR right that turns a lawful basis into a live question. If you process personal data because it is in your legitimate interests, a person can push back and ask you to stop, and for direct marketing they can stop you outright. Article 21 sets out when the objection is absolute, when it is qualified, and what you have to tell people before they ever exercise it.
When does the right to object apply?
Article 21(1) gives a data subject the right to object, on grounds relating to their particular situation, at any time to processing based on point (e) or (f) of Article 6(1), which is a public task or legitimate interests, including profiling based on those grounds. The right does not attach to every lawful basis. Processing you carry out under a contract or a legal obligation is not open to objection in the same way, which is why identifying your basis for each activity is the first step. Get the basis map right and you know exactly where an objection can land.
The absolute right: direct marketing
Article 21(2) is the part with no wiggle room. A person has the right to object at any time to processing of their personal data for direct marketing, which includes profiling to the extent it is related to that marketing. Article 21(3) then states that once they object, the data shall no longer be processed for those purposes. There is no balancing test and no compelling-grounds exception here. In practice you do not always have to erase the record; suppressing their details so they are never marketed to again is usually the cleaner way to honour the objection.
The qualified right: legitimate interests and public task
Where the objection is to legitimate-interests or public-task processing, Article 21(1) lets you keep going only in narrow circumstances. You must demonstrate compelling legitimate grounds for the processing which override the interests, rights and freedoms of the person, or show that you need the data for the establishment, exercise or defence of legal claims. The burden sits with you, the controller, and a weak business preference will not clear it. If the person objects because the processing causes them real damage or distress, their side of the balance carries more weight.
What you must tell people, and how fast
Article 21(4) requires that the right to object be explicitly brought to the person's attention at the latest at the time of your first communication with them, and be presented clearly and separately from any other information, not buried in a privacy notice. Under Article 12(3) you respond without undue delay and within one month, extendable by two further months for complex requests if you tell the person within the first month. Article 21(5) adds that for online services people may object by automated means, so build the mechanism rather than relying on email. Keep the privacy notice and your records aligned so an objection is easy to action.
Next step
The right to object is where a legitimate-interests basis gets tested, and refusing an objection you should have honoured is the kind of mistake regulators notice. The free 2-minute Obligation Scan flags where the GDPR applies to you and which data-subject rights, including objection and erasure, you need a process for. The GDPR compliance hub sets the duties in order.
Compliance checklist
- Identify which of your processing relies on legitimate interests, a public task, or is for direct marketing, because those are where Article 21 bites.
- Stop direct-marketing processing the moment someone objects, with no exceptions, under Article 21(2) and (3).
- For a legitimate-interests or public-task objection, assess compelling legitimate grounds or a legal-claims need before you refuse, under Article 21(1).
- Tell people about the right to object at the latest at first communication, clearly and separately from other information, under Article 21(4).
- Respond without undue delay and within one month under Article 12(3), and support objection by automated means for online services under Article 21(5).
Sources
- Regulation (EU) 2016/679 (GDPR), Article 21 (right to object), official consolidated text on EUR-Lex
- UK Information Commissioner's Office, right to object (Article 21 guidance)
Last verified: 2026-08-11
Informational, not legal advice.