Understanding RIDDOR Reporting Timescales
- steven mullan
- 12 minutes ago
- 2 min read
Written by Steve Mullan CertIOSH 23/04/2025
At SM Safety Training & Consultancy Ltd, we understand the importance of knowing not only what needs reporting and Understanding RIDDOR Reporting Timescales, under RIDDOR (Reporting of Injuries, Diseases and Dangerous Occurrences Regulations), but also when to report it. Prompt and correct reporting is essential for regulatory compliance and ensuring workplace safety.

Related reading: Find out more about RIDDOR reportable diseases in What Injuries At Work Are RIDDOR Reportable?
RIDDOR specifies clear timescales for reporting different types of incidents, diseases, and dangerous occurrences. These reporting timescales fall broadly into three categories:
Immediately (without delay)
Within 10 days
Within 15 days
Immediate Reporting (Without Delay)
The most urgent category under RIDDOR requires incidents to be reported immediately. This is particularly important for serious incidents, including:
Fatalities resulting from workplace accidents, even if death occurs up to one year after the accident date.
Significant injuries to workers.
Incidents involving non-workers requiring hospital treatment.
Dangerous occurrences.
For fatalities or major incidents, the HSE provides a dedicated phone number during working hours, and online reporting can be completed at any time. Early notification helps authorities respond quickly and appropriately.
Additionally, certain occupational diseases, such as occupational cancers, asthma, hand-arm vibration syndrome, and dermatitis, must also be reported immediately upon diagnosis. These illnesses often develop over time but require prompt reporting once identified.
Reporting Within 10 Days
While immediate notification is required for serious incidents, a full written RIDDOR report can be submitted within 10 days. This period allows adequate time to gather necessary details and complete the formal reporting process accurately. Remember, even though you have up to 10 days, it's best practice to submit the report as soon as you have the information available.
Reporting Within 15 Days
You have 15 days to report incidents that result in an employee being incapacitated for more than seven consecutive days (commonly called 'over 7-day injuries'). The 15-day period begins from the day of the accident itself, not from the end of the seven-day incapacitation period. As soon as you know the injury meets the reporting criteria, it’s advisable to submit your report promptly.

Stay Ahead with SM Safety Training & Consultancy Ltd
At SM Safety Training & Consultancy Ltd, our mission is to ensure you fully understand your RIDDOR responsibilities. Our expertise in health and safety training and consultancy will help your business effectively manage reporting requirements, enhancing overall workplace safety and compliance.
Contact us today to find out more about how we can support you.
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