Use this checklist to verify that your service meets its obligations under the Online Safety Act 2023. Work through each section and resolve gaps before moving on.
Scope assessment
- Determined whether your service is a user-to-user service or search service within the meaning of the Act
- Identified whether your service has links with the UK (UK users, UK-targeted, or accessible from the UK)
- Checked whether any exemptions apply (e.g. internal business services, limited functionality services)
- Assessed your platform category (Category 1, 2A, 2B, or uncategorised) and the duties that apply to each
Illegal content risk assessment
- Completed a written illegal content risk assessment covering all 130+ Schedule 7 priority offences
- Identified how your service could be used to commit or facilitate each relevant offence category
- Assessed the level of risk for each offence type based on your service's features, user base, and content types
- Documented proportionate measures to mitigate each identified risk
- Scheduled annual review of the risk assessment, or earlier if significant changes are made to the service
- Retained the written record and made it available for Ofcom inspection on request
Children's access assessment
- Completed a children's access assessment under section 36
- Considered user demographics, content type, design features, marketing, and terms of service age restrictions
- Recorded the assessment conclusion and supporting rationale
- If children are likely to access the service: completed a children's risk assessment and implemented children's safety duties
- If children are not likely to access the service: documented the basis for that conclusion and scheduled review before any significant change
Content moderation systems
- Implemented proportionate systems to prevent users encountering priority illegal content
- Deployed automated detection tools appropriate to your service size and risk profile (e.g. hash-matching, keyword filtering, AI classifiers)
- Established human moderation capacity with trained moderators and escalation procedures
- Set up swift removal processes for illegal content once identified
- Put moderator wellbeing support in place (psychological support, regular breaks, content exposure limits)
Terms of service
- Published clear, accessible terms of service that state how the service deals with illegal content
- Terms specify the types of content and behaviour prohibited on the service
- Terms explain what happens when content or an account is removed (including the right to appeal)
- Terms are consistently enforced across all users
- Terms are reviewed and updated when the service changes or new duties take effect
User reporting and complaints
- Provided an easy-to-use mechanism for users to report illegal content
- Reports are acknowledged and resolved within a reasonable timeframe
- Established a complaints procedure for users who disagree with content moderation decisions
- Appeals process allows users to challenge content removal or account suspension
- Maintained records of reports received, actions taken, and outcomes
Age assurance
- If children are likely to access your service: implemented age assurance measures proportionate to the risk of harm
- Age assurance method is effective at estimating or verifying age (e.g. age estimation technology, age verification, parental controls)
- Age assurance does not process more personal data than necessary
- Reviewed age assurance measures against Ofcom guidance and updated as technology evolves
Ofcom registration and fees
- Determined whether your qualifying worldwide revenue exceeds the fee threshold
- If above the threshold: notified Ofcom within the notification window and paid applicable fees
- If below the threshold: documented revenue position and scheduled annual review
- Prepared for transparency reporting obligations if your service is categorised (Category 1, 2A, or 2B)
Record-keeping and annual review
- Maintained written records of all risk assessments, moderation actions, user reports, complaints, and outcomes
- Records are available for Ofcom inspection on request
- Named a senior manager responsible for Online Safety Act compliance
- Scheduled annual review of all risk assessments, safety measures, and terms of service
- Established a process to review obligations when significant changes are made to the service
Key deadlines
Verify your compliance against the implementation timeline below.
Legal basis
Primary legislation and key regulations
Read it on legislation.gov.uk (opens in a new tab) legislation.gov.ukOfficial guidance
Ofcom Online Safety guidance (opens in a new tab)
Ofcom's central hub for Online Safety Act codes of practice, guidance, and enforcement.
Ofcom
Ofcom illegal content risk assessment guidance (opens in a new tab)
How to conduct the mandatory illegal content risk assessment.
Ofcom
Ofcom children's access assessment guidance (opens in a new tab)
How to conduct the mandatory children's access assessment.
Ofcom
Online Safety Act 2023 (legislation.gov.uk) (opens in a new tab)
Full text of the Online Safety Act 2023.
legislation.gov.uk
GOV.UK Online Safety Act collection (opens in a new tab)
Government guidance and implementation updates.
GOV.UK
Dating and social discovery: know the online safety risks, rules and how to comply (opens in a new tab)
Ofcom
Children's access assessment duties under the Online Safety Act (opens in a new tab)
Ofcom
Check how to comply with the illegal content rules (opens in a new tab)
Ofcom
AI chatbots and online regulation – what you need to know (opens in a new tab)
Ofcom
Age assurance duties under the Online Safety Act (opens in a new tab)
Ofcom
Statement and Guidance: A safer life online for women and girls (opens in a new tab)
Ofcom