DSA enforcementEU

Digital Services Act Enforcement, penalties, and investigations

A grounded guide to who enforces the DSA, how Commission investigations of VLOPs and VLOSEs work, and which fine and periodic penalty payment caps are stated in official sources.

Use it to prepare investigation response ownership, evidence retrieval, RFI handling, inspection support, and escalation files before a regulator asks for them.

Author
Sorena AI
Published
May 9, 2026
Updated
May 9, 2026
Sections
5

Structured answer sets in this page tree.

Primary sources
4

Cited legal and guidance references.

Publication metadata
Sorena AI
Published May 9, 2026
Updated May 9, 2026
Overview

The Digital Services Act enforcement framework is split between national Digital Services Coordinators and the European Commission. National authorities supervise and enforce the DSA for providers of intermediary services established in their territory, while the Commission has direct enforcement tools for designated very large online platforms and very large online search engines. The practical compliance work is therefore not only about knowing the maximum fines; it is about being able to classify the service, identify the competent authority, answer requests for information, support inspections, and produce evidence that matches the obligation under review.

Section 1

Who enforces the Digital Services Act?

Each Member State must designate and empower a Digital Services Coordinator, and the Commission describes DSCs as responsible for all matters relating to application and enforcement of the DSA in that country. In principle, DSCs supervise and enforce compliance by intermediary-service providers established in their territory, regardless of user numbers.

For designated very large online platforms and very large online search engines, the split changes. The Commission has exclusive competence to supervise and enforce the enhanced due diligence obligations that address systemic risks. For other DSA obligations imposed on VLOPs and VLOSEs, the Commission and national authorities share competence.

  • Record the provider's Member State of establishment and the relevant Digital Services Coordinator.
  • Separate baseline intermediary-service duties from VLOP/VLOSE enhanced due diligence duties.
  • For a designated VLOP or VLOSE, route systemic-risk supervision issues to Commission-facing owners.
  • For non-VLOP intermediary services, keep the national DSC route and national competent-authority contacts current.
Section 2

How Commission investigations of VLOPs and VLOSEs start and progress

The Commission enforcement overview says the Commission may open an investigation when information from monitoring or reliable sources creates a suspicion of infringement. During the investigation, it may use investigatory tools to build a reliable body of evidence on a VLOP or VLOSE's compliance.

If suspicion remains after investigatory steps, the Commission may open proceedings. Before adopting a non-compliance decision, a fine decision, or a periodic penalty payment decision, the provider must have an opportunity to be heard on the Commission's preliminary findings and intended measures.

  • Keep an investigation intake log covering the alleged DSA obligation, service, market, product feature, and competent authority.
  • Prepare a request-for-information owner who can coordinate legal review, product facts, data exports, and technical explanations.
  • Maintain a chronology of notices, statements of reasons, complaints, moderation actions, advertising records, recommender-system changes, audit findings, and risk-mitigation decisions relevant to the issue.
  • Preserve the evidence that shows how the provider responded to preliminary findings, interim measures, commitments, or remedies.
Section 3

Commission investigative powers that teams should be ready for

The Commission enforcement page lists four practical investigatory tools for VLOP and VLOSE supervision: requests for information, orders to access data and algorithms, interviews, and inspections. Interviews are described as consent-based; inspections are described as premises inspections that occur only after consultation with the DSC of the Member State of establishment.

The legal text adds operational detail for inspections: Commission-authorised officials can examine books and records, take or obtain copies, ask for explanations, and record answers. Inspections ordered by Commission decision must identify the subject matter and purpose, state the start date, indicate penalties, and preserve judicial review rights.

  • Maintain an RFI response protocol with source systems, data owners, sign-off authority, and a completeness check for each answer.
  • Keep data and algorithm access maps for recommender systems, advertising systems, moderation tooling, risk assessment evidence, audit evidence, and logs relevant to the DSA duty under review.
  • Prepare an interview protocol that distinguishes voluntary interviews from compulsory inspection questions and records who is authorised to speak.
  • Prepare an inspection support file covering premises access, secure workspaces, staff availability, confidentiality claims, copy logs, and correction routes for incomplete or misleading answers.
Section 4

Fines, periodic penalty payments, and last-resort measures

For a non-compliance decision against a VLOP or VLOSE, the Commission enforcement overview states that fines are based on the nature, gravity, recurrence, and duration of the infringement and must be proportionate. It states that the fine must not exceed 6% of a provider's global annual turnover.

The same official overview states that fines up to 1% of worldwide annual turnover can apply for investigation failures such as incorrect, misleading, or incomplete replies, non-compliance with data or algorithm access, or refusal to submit to inspection. It also states that periodic penalty payments up to 5% of average daily worldwide turnover can be imposed for each day of delay in replying to an RFI by decision or allowing inspection, and for delays in complying with remedies, interim measures, or commitments.

The Commission describes temporary suspension of access to a service as a last-resort measure when an infringement persists, causes serious harm to users, and entails criminal offences involving threats to life or safety. The route described is procedural: written observations, a Commission request to the DSC of establishment, and an order from a judge in that Member State.

  • Do not quote a penalty number without the matching trigger: 6% for DSA non-compliance decisions, 1% for specified investigation failures, and 5% daily periodic penalties for compelled compliance.
  • Keep turnover and income data sources separately controlled because the DSA provisions use turnover or income concepts depending on the penalty route.
  • Track whether the issue is an alleged substantive DSA breach, failure to comply with interim measures, breach of commitments, or failure to cooperate with an investigation.
  • For urgent or serious-harm scenarios, preserve the user-harm analysis, criminal-offence assessment, prior measures exhausted, written-observation record, and DSC/judicial authority communications.
Section 5

Evidence readiness checklist for DSA investigations

A useful DSA enforcement file should let a reviewer reconstruct the service classification, competent authority, obligation under review, evidence source, response owner, and regulator-facing answer without rebuilding the facts from memory. The file should be organized for retrieval under pressure, not only for annual compliance review.

For VLOPs and VLOSEs, the evidence should also show whether the matter concerns enhanced due diligence duties, because that affects Commission supervision and the expected evidence set.

Who supervises DSA compliance for very large online platforms and search engines?

The Commission has exclusive competence for the enhanced due diligence obligations imposed on designated VLOPs and VLOSEs to address systemic risks. For other DSA obligations that apply to VLOPs and VLOSEs, the Commission and national authorities share competence.

What DSA penalty caps are grounded for Commission enforcement?

The grounded caps on this page are: fines up to 6% of global annual turnover for non-compliance decisions, fines up to 1% of worldwide annual turnover for specified investigation failures, and periodic penalty payments up to 5% of average daily worldwide turnover for each day of delay in compelled cooperation or compliance.

  • Service and authority file: intermediary-service category, Member State of establishment, DSC contact route, and VLOP/VLOSE designation status.
  • Obligation file: DSA article or obligation area, affected feature, product owner, legal owner, evidence owner, and current control status.
  • Investigation file: RFIs, access requests, interview records, inspection notices, preliminary findings, responses, confidentiality markings, and deadlines.
  • Technical evidence file: data exports, algorithm or recommender-system documentation, moderation logs, statement-of-reasons records, complaint handling data, advertising records, audit materials, and risk-mitigation records when relevant.
  • Penalty-risk file: cooperation status, completeness checks, corrected answers, interim measures, commitments, remedies, action plans, and proof that required measures were completed on time.
Primary sources

References and citations

digital-strategy.ec.europa.eu
Referenced sections
  • Supports the practical investigation and sanctioning events that evidence files should be able to answer.
"collect a reliable and consistent body of evidence"
digital-strategy.ec.europa.eu
Referenced sections
  • Commission source for identifying designated VLOPs and VLOSEs and the threshold concept used for very large service supervision.
"over 45 million users in the EU"
eur-lex.europa.eu
Referenced sections
  • Primary source for Commission powers, fines, periodic penalty payments, hearings, inspections, and last-resort access-restriction procedure.
"subject matter and purpose of the inspection"
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