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Processing personal data in a business (GDPR)

Last checked against the sources 18 October 2026 · Published 18 October 2026

In short: A business may process personal data only if it has at least one of the legal bases listed in the General Data Protection Regulation (isikuandmete kaitse üldmäärus, IKÜM; GDPR), such as a contract, a legal obligation, a legitimate interest or consent () [1]. When collecting data, the business must inform the person about the processing () [2], and it must respond to the person's request without undue delay and at the latest within one month, a period that may be extended by two months where necessary () [3]. A personal data breach must be notified to the supervisory authority without undue delay and, where feasible, within 72 hours () [4]. In Estonia the supervisory authority is the Data Protection Inspectorate (Andmekaitse Inspektsioon) under the Personal Data Protection Act (isikuandmete kaitse seadus, IKS) () [5]; a legal person that breaches the processing principles can be fined up to 20 000 000 euros or up to 4 percent of its worldwide annual turnover of the previous financial year, whichever is higher () [6].

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When may a business process personal data?

Personal data means any information relating to an identified or identifiable natural person, for example a name, a personal identification code, location data or an online identifier () [7]. The business that determines the purposes and means of the processing is the controller (vastutav töötleja) () [7].

Processing is lawful only if at least one of the following conditions is met () [1]:

  • the data subject has given consent for one or more specific purposes (p a);
  • processing is necessary for the performance of a contract with the data subject or for steps taken at their request before entering into a contract (p b);
  • processing is necessary for compliance with a legal obligation of the controller (p c);
  • processing is necessary to protect the vital interests of the data subject or of another natural person (p d);
  • processing is necessary for a task carried out in the public interest or in the exercise of official authority (p e);
  • processing is necessary for the legitimate interests of the controller or a third party, except where those interests are overridden by the interests or fundamental rights and freedoms of the data subject (p f).

The processing principles also apply: data are collected for specified, explicit and legitimate purposes, limited to what is necessary for the purpose, and kept in a form that permits identification only as long as necessary for the purpose ( p b, c and e) [8]. The controller must be able to demonstrate compliance with the principles () [8].

Where processing is based on consent, the business must be able to demonstrate that the person consented () [9]. The person may withdraw consent at any time, and withdrawing must be as easy as giving consent () [9]. Where an information society service is offered directly to a child and processing is based on consent, processing the child's data is allowed only if the child is at least 13 years old; for a younger child, the consent of the legal representative is needed ( and 2) [10].

Processing special categories of data, such as health data, biometric data used to uniquely identify a person and data on trade union membership, is prohibited () [11], except in the cases listed in the article, for example where the person has given explicit consent or where processing is necessary to meet obligations under employment law ( p a and b) [11].

What must a business tell people?

Where data are collected from the person themselves, the business must, at the time the data are obtained, tell them among other things the controller's name and contact details, the purpose and legal basis of the processing, the legitimate interest where processing relies on one, and, where applicable, the recipients or categories of recipients of the data () [2]. It must also state the storage period or the criteria for determining it, the person's rights and the right to lodge a complaint with a supervisory authority ( p a, b and d) [2].

The information must be provided in a concise, transparent, intelligible and easily accessible form, using clear and plain language () [3]. Providing the information is free of charge () [3].

What rights do people have and how quickly must a business respond?

  • Access. A person has the right to confirmation of whether their data are being processed, and to access the data and information on the purpose of processing, the recipients and the storage period () [12]. The business provides a copy of the data being processed; for further copies it may charge a reasonable fee () [12].
  • Rectification. Inaccurate data must be corrected without undue delay () [13].
  • Erasure. Data must be erased, for example, where they are no longer needed for the purpose, where the person withdraws consent and there is no other legal ground, or where the data have been processed unlawfully ( p a, b and d) [14]. The duty to erase does not apply where processing is necessary to comply with a legal obligation or for the establishment, exercise or defence of legal claims ( p b and e) [14].
  • Objection to direct marketing. A person may object at any time to processing of their data for direct marketing () [15]; after that, the data may no longer be processed for that purpose () [15].

The business must inform the person of the action taken on a request at the latest within one month; where necessary, taking into account the complexity and number of the requests, this period may be extended by two months, informing the person of the extension and the reasons within one month () [3]. If the business does not act on the request, it must give the reasons within one month and explain the possibility of lodging a complaint () [3]. For a manifestly unfounded or excessive request, it may charge a reasonable fee or refuse to act; the burden of proof lies with the business () [3].

A person may lodge a complaint with a supervisory authority () [16], and anyone who has suffered material or non-material damage as a result of an infringement has the right to receive compensation () [17].

What to do if data leak?

A personal data breach is a breach of security leading to the accidental or unlawful destruction, loss, alteration, unauthorised disclosure of, or access to, personal data () [7].

  • The supervisory authority must be notified without undue delay and, where feasible, within 72 hours of becoming aware of the breach, unless the breach is unlikely to result in a risk to people's rights and freedoms () [4].
  • The notification describes the nature of the breach, its likely consequences and the measures taken, and gives a contact person's details () [4]. If not all the information can be provided at once, it may be provided in phases () [4].
  • A processor (volitatud töötleja, e.g. an IT service provider) must notify the controller without undue delay () [4].
  • All breaches must be documented, including those that are not notified () [4].
  • If the breach is likely to result in a high risk to people's rights and freedoms, the people themselves must also be informed without undue delay () [18]. This is not required, for example, where the data were protected by measures that render them unintelligible, such as encryption ( p a) [18].

How large are the fines?

The misdemeanours set out in the Personal Data Protection Act are punishable by a fine, and the Data Protection Inspectorate is the extra-judicial body conducting their proceedings () [19].

  • Breach of the processing principles and the rules on consent: for a legal person up to 20 000 000 euros or up to 4 percent of its worldwide annual turnover of the previous financial year, whichever is higher () [6]; the same maximum applies to breaches of data subjects' rights () [20].
  • Breach of the obligations of a controller or processor (including breach notification, security and the processor contract): for a legal person up to 10 000 000 euros or up to 2 percent of its worldwide annual turnover of the previous financial year, whichever is higher () [21].
  • A person who has access to personal data through their work or official duties and unlawfully collects, views, uses or makes queries about them may be fined up to 200 fine units (trahviühik), unless the elements of an offence under § 157 or 157¹ of the Penal Code (karistusseadustik) are present () [22].
  • The limitation period for these misdemeanours is three years () [19].

In addition, if a precept of the Data Protection Inspectorate is not complied with, a penalty payment (sunniraha) may be imposed, each time up to 20 000 000 euros or, for an undertaking, up to 4 percent of its worldwide annual turnover of the previous financial year, whichever is higher () [23].

What the law says

  • „Isikuandmete töötlemine on seaduslik ainult juhul, kui on täidetud vähemalt üks järgmistest tingimustest“ [1] (translation: processing of personal data is lawful only if at least one of the following conditions is met; ) – without a legal basis, data may not be processed.
  • „Lõike 1 täitmise eest vastutab ja on võimeline selle täitmist tõendama vastutav töötleja“ [8] (translation: the controller is responsible for, and able to demonstrate, compliance with paragraph 1; ) – the business must be able to show that its processing complies.
  • „Nõusoleku tagasivõtmine on sama lihtne kui selle andmine.“ [9] (translation: it is as easy to withdraw consent as to give it; ) – withdrawal may not be made difficult.
  • „Kui järelevalveasutust teavitatakse hiljem kui 72 tunni jooksul, esitatakse teates selle kohta põhjendus.“ [4] (translation: where notification to the supervisory authority is made later than within 72 hours, it is accompanied by reasons; ) – a late notification must be explained.
  • „Kui andmesubjekt esitab vastuväiteid otseturunduse eesmärgil toimuva andmete töötlemise suhtes, ei tohi isikuandmeid sellisel eesmärgil enam töödelda.“ [15] (translation: where the data subject objects to processing for direct marketing, the personal data may no longer be processed for that purpose; ).

What to do

  1. Map which personal data the business processes, for what purpose and on what legal basis () [1]. Keep a record of processing activities; its contents are listed in the Regulation () [24]. An enterprise with fewer than 250 employees must keep the record where its processing is likely to result in a risk to people's rights and freedoms, is not only occasional, or includes special categories of data or data relating to criminal convictions and offences () [24].
  2. Draw up a privacy notice containing all the required information ( and 2) [2].
  3. Conclude a written contract (including in electronic form) with every processor that processes data on the business's behalf ( and 9) [25].
  4. Apply technical and organisational security measures appropriate to the risk, such as pseudonymisation and encryption ( p a) [26].
  5. Check whether you must designate a data protection officer (andmekaitseametnik), for example where the core activity of the business is large-scale processing of special categories of data ( p c) [27]; the officer's contact details must be published and communicated to the supervisory authority () [27].
  6. Set up a procedure for answering people's requests within one month () [3] and for notifying the supervisory authority of a breach without undue delay and, where feasible, within 72 hours () [4].

Frequently asked questions

Does a business always need the person's consent?

No. Consent is one of six legal bases; processing may also rely, for example, on performing a contract, a legal obligation or a legitimate interest ( p b, c and f) [1].

How quickly must a request for access be answered?

Without undue delay and at the latest within one month of receiving the request; where necessary, taking into account the complexity and number of the requests, the period may be extended by two months () [3].

May a business charge for answering a request?

As a rule, no: informing the person and taking action are free of charge () [3]. A fee may be charged for further copies () [12] and for a manifestly unfounded or excessive request () [3].

Must every data leak be reported?

The supervisory authority need not be notified if the breach is unlikely to result in a risk to people's rights and freedoms () [4], but the breach must still be documented () [4].

Does a small business need a data protection officer?

A data protection officer must be designated, for example, where the core activities involve large-scale regular and systematic monitoring of data subjects or large-scale processing of special categories of data ( p b and c) [27].

Is something different in your situation?

The guide describes the general rule. Ask about your situation: the answer cites the provisions down to the subsection and point and is checked against the sources before it is shown.

This guide gives general legal information and does not replace an attorney's advice on your situation. It was prepared with the help of an automated system; its quotes, figures and references were checked against the sources listed below.

Sources

The text in force on LegalWise's law pages; the official publication in Riigi Teataja.

  1. [1]IKÜM art 6 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  2. [2]IKÜM art 13 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  3. [3]IKÜM art 12 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  4. [4]IKÜM art 33 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  5. [5]IKS § 51 (RT I, 30.06.2026, 52) – Isikuandmete kaitse seadus · Open provision
  6. [6]IKS § 65 (RT I, 30.06.2026, 52) – Isikuandmete kaitse seadus · Open provision
  7. [7]IKÜM art 4 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  8. [8]IKÜM art 5 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  9. [9]IKÜM art 7 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  10. [10]IKS § 8 (RT I, 30.06.2026, 52) – Isikuandmete kaitse seadus · Open provision
  11. [11]IKÜM art 9 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  12. [12]IKÜM art 15 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  13. [13]IKÜM art 16 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  14. [14]IKÜM art 17 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  15. [15]IKÜM art 21 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  16. [16]IKÜM art 77 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  17. [17]IKÜM art 82 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  18. [18]IKÜM art 34 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  19. [19]IKS § 73 (RT I, 30.06.2026, 52) – Isikuandmete kaitse seadus · Open provision
  20. [20]IKS § 66 (RT I, 30.06.2026, 52) – Isikuandmete kaitse seadus · Open provision
  21. [21]IKS § 62 (RT I, 30.06.2026, 52) – Isikuandmete kaitse seadus · Open provision
  22. [22]IKS § 71 (RT I, 30.06.2026, 52) – Isikuandmete kaitse seadus · Open provision
  23. [23]IKS § 60 (RT I, 30.06.2026, 52) – Isikuandmete kaitse seadus · Open provision
  24. [24]IKÜM art 30 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  25. [25]IKÜM art 28 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  26. [26]IKÜM art 32 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision
  27. [27]IKÜM art 37 – Isikuandmete kaitse üldmäärus (EL) 2016/679 · Open provision

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