The Longitudinal Education Outcomes (LEO) dataset is now available in the ONS Secure Research Service

LEO is a de-identified, person-level administrative dataset that brings together education data with the employment, benefits and earnings data of members of the public. The dataset allows researchers to analyse longer-term labour market outcomes at person level, enabling a major leap forward in the assessment of education policy and provision, and with greater accuracy than ever before.

Research questions this dataset is already being used to explore include:

  • How does the quality of education affect long-term outcomes in the labour market?
  • How do some education policies affect social mobility?
  • Which education pathways are likely to result in positive labour market outcomes?

How to access the LEO dataset

Researchers seeking to securely access this new de-identified dataset must first become an accredited researcher; more information about how to achieve accreditation can be found on the ONS website.

All project applications for LEO in the SRS will:

  • Be considered by the data owning departments (HMRC, DWP & DfE) and the independent Research Accreditation Panel (RAP) and must meet the Research Code of Practice and Accreditation criteria published by the UKSA.
  • Need to request access to specific variables within LEO using the LEO I1SE Variable Request Form.
  • Not have the ability to onward link to additional person level data (additional non-person level data is permitted).

A user guide will be made available to approved projects within the SRS and a knowledge base “wiki” and FAQ’s, to support applications and research, will be published soon.

For any queries regarding access to LEO data within this service please contact For any queries regarding LEO Programme itself please contact

Visit the Gov.UK website for further guidance on accessing the LEO dataset.

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