Watchlist
Also called sanctions list, screening list
A watchlist is a list of names that a regulated firm checks its customers, counterparties and payments against. Official watchlists come from governments and the UN and name sanctioned people, companies and vessels. Firms also screen against politically exposed person lists, law enforcement lists and internal lists of customers they have exited.
How it works
A bank loads official lists such as the OFAC SDN list, the EU consolidated list, the UK Sanctions List and the UN Security Council list into its screening system. Every new customer and every payment is compared against them. Close matches raise an alert. An analyst reviews dates of birth, nationality and addresses to confirm or clear the hit, and records the decision.
Watchlists change daily as governments add and remove designations. A firm that screens against an outdated list can deal with a designated person and breach sanctions law, which in the UK and US carries civil penalties on a strict liability basis. Since 28 January 2026 the UK Sanctions List has been the only official source of UK designations, after the OFSI consolidated list closed.
The rules
The OFSI consolidated list closed and the UK Sanctions List became the single official list of all UK sanctions designations.
All UK persons and firmsUS persons are prohibited from dealing with people and entities on the SDN list and must block their property.
US persons, including US banks and their foreign branchesCountries must freeze without delay the funds of people designated by the UN Security Council for terrorism and terrorist financing.
FATF member jurisdictions and their regulated firmsCommon questions
What is the difference between a watchlist and a sanctions list?
A sanctions list is one type of watchlist. It names people and entities subject to legal restrictions such as asset freezes. Watchlist is the wider term. It also covers PEP lists, law enforcement wanted lists, regulatory warning lists and a firm's own internal lists.
Which watchlists do banks screen against?
Most banks screen against the OFAC SDN list, the EU consolidated list, the UK Sanctions List and the UN Security Council consolidated list. Firms add other national lists based on where they operate and which currencies they clear.
How often do watchlists change?
Official lists can change several times a week, and sometimes several times a day during a major sanctions round. Firms rescreen their customer base when lists update so that newly designated customers are caught quickly.
Why do watchlists produce so many false positives?
Names are often common, transliterated in several ways or recorded with few identifiers. Fuzzy matching catches spelling variants but also flags innocent people with similar names, so analysts clear most alerts after checking dates of birth and other details.
