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What is Sanctions Screening?

Last updated: 26 October 2026

What is Sanctions Screening?

Sanctions screening is the process of checking customers, counterparties and transactions against sanctions lists to make sure a firm does not deal with sanctioned individuals, organizations or countries. It is made up of name screening and transaction screening, and it helps firms stay compliant and avoid fines, reputational harm and financial loss. Because lists change constantly and ownership can hide a sanctioned party, effective screening goes beyond matching names.

Why is sanctions screening important?

Dealing with a sanctioned party can lead to heavy fines, regulatory action and lasting reputational damage. Strong screening helps firms to:

  • Meet regulatory obligations and manage risk
  • Protect their reputation and financial security
  • Operate globally with confidence
  • Support enhanced due diligence and transparency
  • Run more efficiently by focusing analysts on real matches

What is name screening?

Name screening compares the names of customers and related parties against watchlists, such as sanctions and PEP lists, as part of KYC and CDD. It supports efforts to prevent money laundering, payment fraud and terrorist financing, and it takes place at onboarding and on an ongoing basis.

What is transaction screening?

Transaction screening analyzes transactions before they are approved and can stop those that appear too risky or linked to illegal activity. It checks the parties, banks, locations and other details of a payment against lists.

What is the difference between name screening and transaction screening?

Comparison Name screening Transaction screening
What is checked Customers and related parties Individual payments and their details
When Onboarding and ongoing Before a payment is released
Typical outcome Alert on a possible match Hold, release or block

Both rely on well-maintained lists, supported by good watchlist management, and both are part of wider anti-money laundering controls.

What is a sanctions list?

A sanctions list is a published register of individuals, entities and other parties subject to restrictions. Governments, central banks, law enforcement agencies and regulators publish them, and listed parties may face asset freezes, travel bans or trade restrictions. Being listed does not necessarily mean someone has committed a crime.

What are examples of sanctions lists?

The FATF also publishes lists of high-risk jurisdictions that firms should consider in their risk assessments.

What are the types of sanctions?

  • Explicit sanctions. The party is named directly on a sanctions list.
  • Implicit sanctions. The party is not named but is tied to a sanctioned party through ownership, control or association, sometimes described as “sanctioned by association.”
  • Sectoral sanctions. Restrictions on specific sectors or activities, such as finance or energy, without banning all dealings.

What is the 50 percent rule?

Under OFAC’s guidance on entities owned by blocked persons, a company is treated as blocked when one or more sanctioned parties own 50% or more of it, directly or indirectly, even if it is not listed. Ownership is cumulative, so two sanctioned entities that each own 25% would trigger the rule. A company owned 47% by a listed party isn’t automatically blocked, but it deserves close review. UK and EU rules also cover control. See our 50 Percent Rule entry and our OFAC 50 percent rule FAQ.

How does sanctions screening work?

  1. Collect and maintain lists. Source, update and govern the lists the firm screens against.
  2. Screen at onboarding and continuously. Check customers, owners and related parties, and re-screen when lists or customer details change.
  3. Screen payments. Check transactions before release.
  4. Match intelligently. Use fuzzy matching to catch spelling variations, aliases and transliterations, and entity resolution to link related records.
  5. Review alerts. Analysts decide whether a match is genuine, with documented reasons.
  6. Escalate and report. Block or freeze where required and report as the law demands.

What are the challenges of sanctions screening?

  • Data quality, including incomplete or inconsistent customer and list data
  • Complex and fast-changing regulations across jurisdictions
  • False positives that burden analysts, and false negatives that create risk
  • Operational efficiency, as high alert volumes slow decisions
  • Evolving evasion techniques, such as shell structures and indirect ownership
  • Hidden ownership that no list shows

How is AI improving sanctions screening?

AI can improve matching accuracy, reduce false positives and explain its reasoning for audit. Entity resolution and ownership analysis help uncover implicit exposure, and agentic AI can gather evidence and prepare alerts for review while analysts keep control of the final decision.

How does SymphonyAI help with sanctions screening?

SymphonyAI offers market-leading sanctions screening software as part of its advanced anti-financial crime software for financial institutions. AI Augment for Screening adds AI to existing screening to reduce false positives and surface hidden risk. Contact us to find out more.

FAQs

What is the difference between sanctions screening and sanctions compliance?
Screening is the control that checks parties and payments against lists. Sanctions compliance is the wider program, including policy, risk assessment, governance and reporting.

How often should sanctions screening be done?
At onboarding, when lists or customer details change, and ongoing. Payments should be screened before release.

Does sanctions screening cover ownership?
It should. Ownership and control rules, such as the 50 Percent Rule, mean a customer can be restricted without being listed.

What is the difference between sanctions screening and AML?
AML targets money laundering, while sanctions screening ensures firms avoid prohibited parties. They are usually run together.