What is Legitimate Interest?

Legitimate interest is one of six lawful bases for processing personal data under Article 6(1)(f) of the GDPR. It allows controllers to process personal data when they have a real, genuine, and justified reason to do so, provided that the processing does not override the fundamental rights and freedoms of the data subject. It is the most flexible lawful basis but also requires the most careful assessment and documentation.

To rely on legitimate interest, organizations must conduct a three-part Legitimate Interest Assessment (LIA): identifying the legitimate interest being pursued, demonstrating that the processing is necessary to achieve that interest (necessity test), and conducting a balancing test to weigh the controller's interest against the impact on the data subject's rights. Examples of recognized legitimate interests include fraud prevention, network and information security, direct marketing to existing customers, and intra-group administrative purposes.

ComplyIQ provides structured templates for documenting Legitimate Interest Assessments, tracking balancing tests, and maintaining records that demonstrate compliance with the accountability requirements of the GDPR. This documentation is essential for defending the choice of legitimate interest as a lawful basis during regulatory inquiries or audits.