A customer who passes sanctions screening today may appear on a sanctions list months later. A business director who cleared screening during onboarding could also become designated after the relationship begins. If your screening only runs once, you may not discover those changes until someone else does.

In 2024, the CBN penalised financial institutions for compliance failures that included inadequate screening of customer databases against targeted financial sanctions lists. Since then, the CBN's March 2026 Baseline Standards for Automated AML/CFT/CPF solutions show that sanctions screening has become a stronger regulatory focus. Screening gaps are no longer something you can simply check off. 

This article explains what sanctions screening covers, what an AML watchlist should include and how to build a screening process that continues to work after onboarding.

What Sanctions Screening Is and Why It Matters

Sanctions screening checks customers, transactions, and counterparties against sanctions lists to flag prohibited individuals or entities before a transaction is processed or a relationship begins. It helps you avoid dealing with sanctioned parties while meeting your AML compliance obligations.

Sanctions screening matters for three key reasons:

1. Mandatory compliance

Sanctions screening is a regulatory requirement, not a one-time compliance task. Under Nigeria's Money Laundering (Prevention and Prohibition) Act 2022 and the CBN AML/CFT framework, financial institutions must screen customers at onboarding and throughout the customer relationship. The CBN's March 2026 Baseline Standards also require automated sanctions screening across regulated financial institutions.

2. Active enforcement

The CBN is actively enforcing sanctions screening requirements, with Nigerian financial institutions facing penalties for screening failures in 2024. Nigeria's removal from the FATF grey list in October 2025 has not reduced regulatory scrutiny; it has raised expectations for sustained compliance and stronger screening controls.

3. Beyond the fine

A sanctions screening gap can expose your institution to more than regulatory penalties. It can affect correspondent banking relationships, complicate investor due diligence, and create licensing challenges that are often more costly than the initial compliance failure.

A sanctions screening programme is only as effective as the watchlists behind it. Understanding what an AML watchlist actually covers is where that starts. 

What an AML Watchlist Actually Covers

An AML watchlist is more than a single sanctions list. It combines multiple databases that cover different categories of AML risk, and relying on only one of them leaves gaps in your sanctions screening process. 

An effective AML watchlist screening process brings these sources together rather than treating them as separate checks.

A complete AML watchlist typically includes:

• International sanctions lists: International sanctions lists include those published by OFAC, the UN Security Council, the EU, the UK, and other national authorities. They identify sanctioned individuals, entities, and countries, making them the foundation of any sanctions screening programme.
• PEP databases: PEP databases identify politically exposed persons, their family members, and close associates who may present a higher risk of financial crime. Although PEPs are not sanctioned by default, you should screen for them alongside sanctions checks as part of your AML process.
• Adverse media screening: Adverse media screening reviews credible public reporting linked to fraud, corruption, money laundering, or other financial crimes. It helps you identify developing risks before they result in an official sanctions designation or other regulatory action.
• Local lists including the NFIU: International sanctions lists alone are not enough. Nigeria's National Financial Intelligence Unit (NFIU) maintains its own list of designated persons and entities, and screening without it leaves a local compliance gap that CBN examinations specifically assess.

Knowing what an AML watchlist covers is only part of the process. How you build and run your sanctions screening programme determines whether those lists actually protect your business.

Related: See how to carry out  PEP Screening for your fintech

The Gaps Most African Fintechs Have in Sanctions Screening

Most African fintechs already have some form of sanctions screening in place. The challenge is how it is built, when it runs, and what it actually covers. Those gaps can leave your compliance programme exposed even when screening appears to be in place.

The most common gaps include:

• Incomplete list coverage: Screening against OFAC and UN sanctions lists alone is not enough. If your programme does not also cover relevant lists such as the EU, UK, and applicable local lists, a sanctioned party missing from the lists you check can still pass through your controls. Comprehensive list coverage is the baseline for an effective sanctions screening programme.
• Point-in-time screening: A customer who clears screening at onboarding may be designated months later. The same applies to a business director or a politically exposed person whose status changes after the relationship begins. If you only screen once, those changes remain invisible until they are identified through an external review rather than your own controls.
• No screening of directors and beneficial owners: Screening a business without screening its directors and beneficial owners leaves an important gap. Under major sanctions regimes, an entity may be treated as sanctioned when a designated person owns 50% or more of it. Entity-level screening alone cannot identify that exposure.
• Inconsistent false positive handling: Name-only matching can generate unnecessary alerts, especially where common names are involved. Using additional identifiers such as date of birth, nationality, and identification numbers helps improve match quality. Just as important, every dismissed match should have a documented reason to support your audit trail during a regulatory examination.

Closing these gaps requires more than broader list coverage. Your screening process also needs to run at the right time and handle new sanctions designations as they happen, not months after the fact.

See: A product walkthrough on how to set up your first AML check with Dojah

Why Ongoing Screening Matters

Sanctions lists are not static. The UN, EU, UK, and other authorities update their lists as new designations are made, investigations progress, and restrictions change. A customer who clears screening at onboarding may not remain clear months later.

Effective ongoing screening requires three things:

1. Screening after onboarding

Sanctions exposure can appear after a business relationship begins. A director may become designated after a company is onboarded, a PEP’s status may change, or a counterparty may appear on a new sanctions list. Point-in-time screening cannot identify these changes because it only runs once.

2. Continuous monitoring

Ongoing screening is a requirement under the CBN AML/CFT framework and the March 2026 Baseline Standards for Automated AML/CFT/CPF Solutions. Your screening process must continue throughout the customer lifecycle, not stop after the initial onboarding check.

3. Defined screening cadence

Effective ongoing screening requires clear rules for when re-screening happens. This may include scheduled re-screening against updated lists and event-triggered checks when significant changes occur in the customer relationship or sanctions environment. A monthly check is not the same as a process that responds when new risks emerge.

This is exactly where Dojah's AML Watchlist is built to close the gap.

How Dojah's AML Watchlist Makes Sanctions Screening Accurate and Ongoing

A sanctions screening programme is only effective when it covers the right lists, checks the right entities, and continues after onboarding. Dojah's AML Watchlist helps compliance teams address these gaps by combining sanctions lists, PEP databases, adverse media screening, and ongoing monitoring in one screening flow.

Dojah's AML Watchlist helps you strengthen sanctions screening through:

• International and local list coverage in one flow: Relying on only international sanctions lists can leave gaps in your screening process. Dojah's AML Watchlist combines international sanctions lists, PEP databases, adverse media screening, and local lists including the NFIU, helping Nigerian fintechs avoid missing relevant risk sources.
• Ongoing screening beyond onboarding: A customer who passes screening during onboarding may present a different risk later. Dojah's AML Watchlist supports ongoing screening, helping you identify new designations that occur after a customer relationship has already started.
• Entity and individual screening in one flow: Screening only a business entity can miss risks connected to the people behind it. Dojah's AML Watchlist screens businesses and connected individuals, including directors and UBOs, in the same flow.
• Documented screening decisions: Every screening outcome needs a clear record. Dojah's AML Watchlist logs screening results, confirmed matches, false positive dismissals, and escalation decisions to support compliance reviews and reporting requirements.

Dojah helps fintechs build sanctions screening programmes aligned with the CBN's 2026 standards.

See how Dojah’s AML Watchlist can help your fintech simplify sanctions screening, ongoing monitoring, and AML compliance.

Frequently Asked Questions

1. What is sanctions screening and why is it important for African fintechs?

Sanctions screening is the process of checking customers, businesses, and transactions against sanctions lists to identify prohibited individuals, entities, or countries. For fintechs, it helps reduce exposure to financial crime risks and supports compliance with AML requirements.

2. What should an AML watchlist cover for effective sanctions screening?

An effective AML watchlist should include relevant sanctions lists, PEP databases, adverse media sources, and local risk lists. A strong AML watchlist screening Africa approach helps fintechs build broader risk coverage instead of relying on a single list.

3. Why is ongoing sanctions screening important after customer onboarding?

A customer who passes screening during onboarding may become a risk later if they are added to a sanctions list or their risk profile changes. This is why sanctions screening AML watchlist Africa solutions need ongoing monitoring throughout the customer relationship, not just a one-time check.

4. Should fintechs screen directors and beneficial owners during AML checks?

Yes. Screening only the business entity can leave gaps because sanctions exposure may come through the individuals who own or control the business. Screening directors and beneficial owners gives fintechs a clearer view of the risks connected to each customer relationship.

5. What should Nigerian fintechs look for in a sanctions screening solution?

When choosing a sanctions screening fintech Nigeria solution, fintechs should consider list coverage, ongoing monitoring, false positive handling, and audit records. A reliable screening process should help compliance teams identify and manage risks throughout the customer lifecycle.