The HM Treasury/OFSI list is the UK's consolidated list of targets subject to financial sanctions, maintained by the Office of Financial Sanctions Implementation within HM Treasury. It applies to UK persons and activity, and since diverging after Brexit it can differ in named parties and scope from the EU, US, and UN lists.
What is the OFSI list, in plain English?
The HM Treasury/OFSI list is the UK's single consolidated list of individuals, entities, and ships subject to UK financial sanctions. It is maintained by the Office of Financial Sanctions Implementation (OFSI), the part of HM Treasury responsible for implementing and enforcing financial sanctions in the UK.
It applies to UK persons and UK activity: firms in the UK, UK nationals, and transactions that touch the UK. If your business has UK exposure, this is the list your obligations run against, and it sits alongside any other regimes your activity reaches.
The important recent development is that, since the UK left the EU, the UK regime has diverged from the EU. It once tracked EU designations closely; now the UK makes its own listing decisions, so named parties and scope can differ from the EU, US, and UN lists. Treating UK coverage as a copy of any of those is no longer safe.
How UK, EU, and US lists diverge
What changes | Assuming lists match | Screening each regime |
UK-only listings | Missed if you screen only US or EU data. | Caught by screening the OFSI list directly. |
Post-Brexit divergence | Ignored; treated as EU-equivalent. | Accounted for as a distinct regime. |
Coverage | Gaps where the UK differs. | UK obligations actually met. |
Reconciliation | None; one list assumed universal. | Differences identified and applied. |
Who is involved
Who | Their role |
OFSI (HM Treasury) | Maintains the UK consolidated list and enforces UK financial sanctions. |
UK-exposed firm | Screens against the OFSI list for UK persons and UK-touching activity. |
Compliance team | Reconciles the UK list with EU, US, and UN regimes rather than assuming they match. |
List data provider | Delivers the OFSI data and keeps it current as UK designations change. |
What it looks like in practice
In practice
A firm with a UK entity processes a payment for a counterparty that its US and EU feeds both clear. Because the team also screens the OFSI list, the same counterparty returns a match: designated by the UK but not by the US or EU at that point.
For this UK-touching activity, the UK designation governs, so the payment is held. Before Brexit the team might have assumed EU coverage stood in for the UK. Post-divergence that assumption would have let a UK-prohibited dealing through, because the lists no longer name the same parties.
Why it matters to operators
For any program with UK exposure, the OFSI list is the authoritative source, and the post-Brexit divergence makes it a distinct obligation rather than a mirror of the EU. Programs have to screen it specifically and reconcile it with other regimes, not assume the lists line up.
The failure mode is treating UK, EU, and US coverage as interchangeable. It leaves gaps: a party sanctioned in the UK may not appear elsewhere, so leaning on a single list leaves UK obligations unmet. The safe posture is to run the applicable lists in parallel and handle the differences deliberately.
What to watch in the data
- Screen it for UK activity. UK persons and UK-touching transactions need the OFSI list checked directly, not by proxy.
- Post-Brexit divergence. The UK now makes its own listing decisions; do not treat it as EU-equivalent.
- UK-only designations. Parties listed by the UK but not the US, EU, or UN are exactly what single-list screening misses.
- Freshness. UK designations change independently; stale OFSI data creates gaps or over-blocks de-listed parties.
- Reconciliation. Where multiple regimes apply, identify and apply the differences rather than defaulting to one list.
Quick questions
What is OFSI?
The Office of Financial Sanctions Implementation, part of HM Treasury, responsible for implementing and enforcing UK financial sanctions. It maintains the UK consolidated list of parties subject to those sanctions.
Is the UK list the same as the EU list?
No, not anymore. Since Brexit the UK regime has diverged from the EU and makes its own listing decisions. Named parties and scope can differ, so treating the UK list as EU-equivalent leaves gaps.
Who has to screen against it?
Firms with UK exposure, covering UK persons and transactions that touch the UK. They screen the OFSI list specifically, alongside any other regimes their activity reaches, and reconcile the differences.
Why did the UK and EU lists diverge?
Before Brexit the UK largely followed EU designations. After leaving, the UK set up its own sanctions framework under OFSI and now decides its own listings, so the two regimes no longer name identical parties.
What is the main risk with the OFSI list?
Assuming UK, EU, and US coverage are interchangeable. A party sanctioned in the UK may not appear elsewhere, so relying on a single list leaves UK obligations unmet. Screening each applicable regime closes that gap.
Go deeper
- OFAC, US Treasury ↗ — Administers US sanctions programs, the SDN list, and licensing.
- European Banking Authority ↗ — EU banking regulator. Strong Customer Authentication under PSD2 and AML guidance.