Occupational accident reporting

The reporting of workplace accidents encompasses all the notification obligations that a company must fulfill when an employee suffers a work-related accident. These obligations include completing and submitting the workplace accident report through the Delt@ system within the deadlines established by the Order of December 16, 1987, when the accident results in sick leave; submitting a monthly report of accidents not resulting in sick leave; urgently notifying the labor authority within 24 hours in cases of serious, very serious, fatal accidents, or accidents affecting more than four people; and notifying the mutual insurance company or managing entity. This is complemented by the preventive obligation to investigate any resulting health damages and by registering and maintaining the documentation required by Law 31/1995.

In short

Notification obligations following a workplace accident: accident report with sick leave submitted through Delt@ within five working days, monthly report of accidents without sick leave, notification to the labor authority within twenty-four hours in cases of serious, very serious, fatal, or multiple accidents, and notification to the mutual insurance company. This is complemented by the investigation under Article 16.3 and the registration under Article 23 of Law 31/1995.

Content
  1. What is workplace accident reporting?
  2. Obligations and deadlines
  3. Investigation and preventive record-keeping
  4. Organizational application: how to manage accident reporting
  5. Limits and common mistakes
  6. Practical example
  7. Regulatory framework in Spain
  8. Related concepts
  9. References

A–Z dictionary →

What is workplace accident reporting?

When a workplace accident occurs, three systems converge: the Social Security system, which needs to be notified of the incident to recognize occupational accident benefits; the labor authority and the Labor Inspectorate, which monitor working conditions and the causes of the injury; and the company’s own preventative system, which must investigate the accident to prevent its recurrence. Accident reporting connects the first two systems through standardized forms and deadlines, and the third through the obligation to investigate and record the accident, as stipulated in Article 16.3 of Law 31/1995.

Order TAS/2926/2002 approved the current forms: the workplace accident report, the list of workplace accidents that did not result in sick leave, and the list of recoveries or deaths of injured workers. It also established the Electronic Declaration of Injured Workers (Delt@) system, through which reports are mandatory and transmitted electronically, with access for the company, the mutual insurance company or managing entity, the labor authority, and the Labor Inspectorate. In Catalonia, the CoNTA system with equivalent functions is used.

The accident report includes data on the worker, the company and the workplace, the location and circumstances of the accident (type, material agent, deviation, physical activity), the injury and medical care received, and the economic consequences. Its quality determines the usefulness of official accident statistics and the correct classification of the incident.

Obligations and deadlines

  • Accident report with sick leave. It must be completed and submitted via Delt@ within a maximum of five business days from the date of the accident or the start of sick leave. The company sends it to the mutual insurance company or managing entity, which accepts it or returns it for correction.
  • List of accidents without sick leave. The list of accidents that occurred without sick leave is communicated monthly, within the first five business days of the following month.
  • Urgent notification. In the event of serious, very serious, or fatal accidents, or accidents affecting more than four workers, whether or not they are all employees of the company, the company must notify the provincial labor authority within 24 hours, in addition to the standard report. Delt@ has a specific function for this notification.
  • List of discharges or deaths. The managing entity or mutual insurance company reports monthly the discharges and deaths of the injured persons.
  • Accidents involving temporary agency workers and those on assignment. The user company must inform the temporary agency of any accident involving its assigned workers; the report is submitted by the temporary agency as the employer. Accidents occurring on assignment and commuting accidents are reported with the corresponding markings.
  • Occupational diseases. They are reported through the CEPROSS system, initiated by the physician of the mutual insurance company or managing entity and with the collaboration of the company, in accordance with Royal Decree 1299/2006 and Order TAS/1/2007.

Investigation and preventive record-keeping

  • Investigation. Article 16.3 of Law 31/1995 requires that all health damages be investigated to determine their causes and implement corrective measures. This investigation is the responsibility of the occupational health and safety service, with the collaboration of management and the participation of health and safety representatives.
  • Record. Article 23 requires keeping the list of work accidents and occupational diseases that have caused a disability of more than one day, available to the labor authority.
  • Information for representatives. Worker safety representatives have the right to know about the damage caused, to be present at the scene of the events even outside of their working hours and to receive information from the reports.
  • Measures. The research findings are incorporated into the risk assessment and preventive planning, with monitoring of their implementation.

Organizational application: how to manage accident reporting

  1. Define an internal procedure for immediate communication of any accident or incident to the command and the prevention service, with a first information form.
  2. Assign responsible parties and substitutes for completing and sending the reports via Delt@, with valid digital certificates and access to the staff and Social Security data.
  3. Establish a protocol for action in the event of serious, very serious, fatal or multiple accidents: care for people, notification of the labor authority within twenty-four hours, preservation of the place and communication to the representatives.
  4. Investigate each accident using a systematic method (cause tree or other), with the participation of managers and worker safety representatives, and document causes and measures.
  5. Keep a record of accidents and occupational diseases with disability exceeding one day and retain the reports and investigations.
  6. Coordinate with the mutual insurance company the classification of the contingency and the assistance, and with the temporary employment agency or the main company in cases of transferred personnel or contractors.
  7. Periodically analyze data with accident rates and translate the conclusions into risk assessment and planning.

Preventive management software allows you to record the accident from the first communication, control notification deadlines, document the investigation and measures, and generate the indices and reports for management and representatives.

Limits and common mistakes

  1. Exceeding the five-day reporting period or the twenty-four-hour period for urgent communication may constitute an infringement under the LISOS.
  2. Omitting the monthly report of accidents without sick leave or not registering minor accidents, thus losing preventive information.
  3. Completing the report with incomplete data or incorrect coding of form, agent and deviation.
  4. Notifying without investigating, or investigating without translating the findings into actionable measures and risk assessments.
  5. Not informing the worker safety representatives or facilitating their presence at the accident site.
  6. Confusing notification to the mutual insurance company with communication to the labor authority in serious accidents.

Deadlines and models may be updated; the current versions in the Delt@ system and applicable regulations should be consulted.

Practical example

Situation: An assembly company worker suffers a fracture in his forearm when his hand gets caught in a conveyor belt and is taken to the mutual insurance company’s medical center, which classifies the accident as serious.

  • First hour. Healthcare, notification of the prevention service and worker safety representatives, preservation of the area and collection of testimonies.
  • Twenty-four hours. Urgent notification to the labor authority via Delt@ due to the serious nature of the accident.
  • Five business days. Completion and submission of the accident report with sick leave, accepted by the mutual insurance company.
  • Investigation and measures. Cause tree that identifies the absence of protection at the point of entrapment and an inadequate unblocking procedure; installation of interlocking protection, review of the procedure, training and updating of the risk assessment, with registration in the management system.

Regulatory framework in Spain

In Colombia, Resolution 156 of 2005 and Decree 1072 of 2015 regulate the reporting of work accidents to the ARL within the following two business days; in other countries there are equivalent electronic notification systems.

Related concepts

References

  1. Official State Gazette. Order TAS/2926/2002, of November 19, establishing new forms for reporting workplace accidents and enabling their electronic transmission. 2002, current consolidated text. Official source
  2. Official State Gazette. Law 31/1995, of November 8, on Occupational Risk Prevention. 1995, current consolidated text. Official source
  3. Official State Gazette. Royal Legislative Decree 8/2015, of October 30, consolidated text of the General Social Security Law. 2015, current consolidated text. Official source
  4. Official State Gazette. Royal Legislative Decree 5/2000, of August 4, consolidated text of the Law on Infringements and Sanctions in the Social Order. 2000, current consolidated text. Official source
  5. Official State Gazette. Royal Decree 1299/2006, of November 10, approving the schedule of occupational diseases in the Social Security system and establishing criteria for their notification and registration. 2006, current consolidated text. Official source

Editorial information

Publication date: August 30, 2026 .

Editorial Manager: Sabentis Editorial Team .

Editorial review by Pablo Rodríguez LinkedIn

Executive Vice President of the ORP International Foundation and Chief Financial Officer of Sabentis.

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