Defence & security
National terrorism threat level
Severe
Current
Overdue · as of 04 Mar 2015no date announced
141 months old · Reviewed continuously; can change without notice
Explained
National terrorism threat level: the official figure explained
The latest national terrorism threat level figure from MI5 / JTAC via GOV.UK, with its period, release dates and full source link.
The live figure
MI5 / JTAC via GOV.UK
What it measures
National terrorism threat level — Threat to the UK from terrorism, set by JTAC. The figure is published by MI5 / JTAC via GOV.UK and covers Current.
How often it is published
MI5 / JTAC via GOV.UK publishes this reviewed continuously; can change without notice. UKStats shows the figure exactly as published and never estimates values between releases.
Publisher notes
Official five-step scale: low, moderate, substantial, severe, critical. Threat levels have no expiry date, so the date shown is when the official page last changed.
Methodology
MI5 / JTAC via GOV.UK — original publicationUKStats reproduces the published figure exactly; the publisher's own methodology notes are the authoritative description of how it is compiled.
Cite this figure
MI5 / JTAC via GOV.UK, "National terrorism threat level", Current. Via UKStats (ukstats.co.uk/explained/uk-threat-level), accessed 12 October 2026. Original: https://www.gov.uk/terrorism-national-emergencyEmbed this figure
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