Four Brotherhood chapters carry US terrorism listings, and one designee lives in Britain

Executive Order 14362, signed on 24 November 2025, ordered the blacklisting of Muslim Brotherhood chapters — not the organisation as a whole — and every American action since has run through that distinction. Al Jazeera noted at the time that it was not clear what the White House was referring to in parts of its justification. On 13 January 2026 the State Department designated the Lebanese branch a Foreign Terrorist Organization, the more severe listing, which makes material support a criminal offence, while Treasury listed the Egyptian and Jordanian branches as Specially Designated Global Terrorists under E.O. 13224 for material support to Hamas. On 9 March the Sudanese organisation was designated an SDGT with intent to list it as an FTO effective 16 March, alongside the Al-Baraa bin Malik Brigade. The OFAC entry records the Sudanese body’s establishment date as 1 January 1954 and its organisation type as “Advocacy organization”.

The sharpest instrument so far is financial. On 23 July, OFAC designated a senior Egyptian Muslim Brotherhood official together with three further individuals and three entities said to have provided material support to Hamas. One named target, Mahmoud al-Abyari, is described in the Treasury release as United Kingdom-based — a US terrorism-finance listing on a person resident in a jurisdiction that has not banned the organisation. Whether His Majesty’s Treasury has frozen anything, and whether al-Abyari has responded publicly, is unresolved in the available record. A related arrest reported on 31 July appears in the material only via the topic archive of the Foundation for Defense of Democracies, an advocacy organisation on this file; without a charging document it should not be treated as established.

The organisation’s own posture is thinner than its adversaries' paperwork. In January, Al Jazeera reported an Egyptian Muslim Brotherhood official — unnamed in the retrieved material — saying the group rejected the designation and would “pursue all legal avenues to challenge” it. No filing, forum or counsel has been confirmed in the nearly eight months since. What the organisation has issued is messaging: on Thursday 13 August 2026, corresponding to 29 Safar 1448, the Brotherhood-aligned platform Freedom and Justice Gate published a statement under the group’s collective byline marking thirteen years since the Rabaa al-Adawiya and Nahda dispersals, framing the “massacres of the coup” as the abortion of Egypt’s democratic experiment. That is a primary document of self-presentation, not independent reporting.

Assessment: The gap to watch is not between designation and denial but between designation and enforcement. Washington has built a listing architecture at speed; the follow-through belongs to other capitals, and London’s silence on a designee it hosts is the cleanest measure of how far the transatlantic consensus actually extends. Read the missing lawsuit the same way. A stated intention to litigate that produces no docket entry in eight months suggests either that the Egyptian organisation lacks the standing and counsel to fight in a US forum, or that it has calculated that a hearing would surface more than it recovers. Both readings are unflattering, and neither has been tested.