KYC, AML, and KYB requirements for financial institutions in 2026
A valid ID doesn’t reveal how someone will use an account. Similarly, a company registration is proof that a business exists, but it’s not always clear who controls it. Financial institutions must understand their customers and overall activity. This is what know your customer (KYC), anti-money laundering (AML), and know your business (KYB) checks are for.
In this guide, you’ll find out what these checks do, what financial institutions should consider in 2026, and why it doesn’t end at onboarding. You’ll also learn how iDenfy brings together transaction, business, and identity checks.
How KYC, AML, and KYB work together
KYC, KYB, and AML are often grouped together, making it easy to lose track of their individual roles. First, KYC is about knowing the individual customer. It verifies who the person is, why they want the account, and how they’re likely to use it.
On the other hand, KYB is company-focused. For example, a financial institution checks a business’s legitimacy, its activity, and who owns or controls it. This is important because a registration certificate alone isn’t enough insight into complex ownership chains.
Then there’s AML. This process combines business and customer checks, adding monitoring, internal controls, investigations, and any reporting. KYB and KYC both contribute to AML.
The Financial Action Task Force’s recommendations provide the international starting point. Of course, countries apply these recommendations differently based on their own laws. That’s why there’s no universal KYC checklist.
Imagine a bank opening an account for an import company. The company representative and the owners may be verified. The bank may also establish the company’s expected trading activity and compare future payments against it. When combined, these checks give the bank a good idea of who it is dealing with and what kind of activity to expect.
What financial institutions need to check
First, a financial institution needs to work out which rules apply to its business, markets, and services. That tells it which information and documents must be collected, how to verify them, and what to do when details don’t match up.
Verify customer identity
For an individual, identifying information is first collected and checked against relevant evidence. For example, US bank customer identification program requirements typically cover the customer's name, date of birth, address, and identification number.
Document upload is only one stage of the process. The institution still needs to establish that the document belongs to the applicant and that the information provided is consistent. If the details do not match, the application may require further review.
The onboarding process should also make it clear what documents are accepted and what happens when a submission fails. For example, the applicant should be told why the document was rejected and what they need to provide to continue. This helps avoid unnecessary delays for legitimate applicants.
Identity checks should feed into customer due diligence (CDD). For example, FinCEN’s CDD also covers beneficial ownership, the purpose of a customer relationship, and monitoring. Having a customer’s name isn’t the same as understanding their risk.
Check businesses and the people behind them
KYB applies a similar process to companies. For example, confirm which business is applying, whether it’s active, what it does, and who ultimately benefits from or controls it.
Depending on jurisdiction and risk, evidence may include:
- Registration records: legal name, registration number, current status
- Business addresses: registered and operating locations
- Ownership documents: displaying shareholders and control structure
- Licenses/permits: what is required for the company’s activities
iDenfy’s KYB guide helps you understand what your process should include. It explains company verification, ultimate beneficial owner (UBO) checks, and monitoring. A UBO is a real person who owns or controls a company. When companies own other companies, follow the chain far enough to uncover the relevant person under the applicable rules.
Ownership thresholds aren’t universal. The US CDD rule typically uses a 25% ownership threshold. There’s one control person for covered institutions, with some exclusions and exemptions. That figure shouldn’t be used for every country’s KYB procedure.
Match the checks to the risk
Risk varies widely by customer. Think about the customer, geography, product, and activity. Record why your level of due diligence makes sense.
Higher-risk cases might require enhanced due diligence (EDD), like deeper checks into the source of funds or wealth.
Politically exposed person (PEP) checks, sanctions, and adverse media checks address different questions. A similar name doesn’t prove you’ve pinpointed the listed person. Review the other identifiers.
Also, being a PEP doesn’t automatically mean criminal behavior. FATF says the extra measures are preventive. It’s important to follow the relevant requirements and assess the relationship.
As for sanctions, those may be less flexible. In the US, OFAC’s matching guidance describes how to compare details and determine if the activity is authorized or must be rejected or blocked. Here, the staff needs clear escalation steps since a risk score can’t override a legal prohibition.
What has changed for financial institutions in 2026?
Two developments matter in 2026. Covered US financial institutions received targeted relief on repeat beneficial ownership checks, while EU institutions need to prepare for AML rules that start to apply from July 2027.
Dates can make regulatory updates confusing. For example, a change that’s announced this year might not take effect until later, while a smaller amendment may already affect daily account-opening processes.
US beneficial ownership checks
On February 13th, 2026, FinCEN granted covered financial institutions relief from the requirement to repeat beneficial owner identification and verification each time an existing legal-entity customer opens another account.
FinCEN’s latest CDD FAQs say that covered institutions using this relief may limit those checks to three situations. They include the customer’s first account, facts that call the reliability of existing information into question, and occasions identified via risk-based ongoing due diligence.
This applies when information needs to be collected again. It does not remove the basic requirements to identify beneficial owners or conduct ongoing due diligence. Account-opening instructions should specify when existing information can be used and when it needs to be reviewed or updated.
New EU rules for 2027
The EU’s new Anti-Money Laundering Regulation, Regulation (EU) 2024/1624, generally applies from July 10th, 2027. Such future requirements shouldn’t be presented as already in force during 2026.
For the moment, institutions must continue to follow the current EU AML system and the national rules that apply to them. Still, 2026 is a sensible time to compare existing procedures with the incoming regulation. Each planned update should state when it takes effect. Institutions can prepare now, but their policies shouldn’t treat future rules as though they already apply.
Why transaction monitoring matters after onboarding
Details collected during onboarding can’t stay accurate forever, as businesses and customers change. Transaction monitoring helps spot activity that no longer aligns with what the institution knows about the account.
For example, a local retailer suddenly begins forwarding frequent international payments. That’s not proof of money laundering. However, it is a reason to check the payments together with the customer profile.
The US banking examination manual also supports this, advising to review unusual activity involving customer information and the periodic evaluation of monitoring criteria and thresholds.
Create rules for useful reviews
Transaction screening and monitoring differ. Screening cross-checks individual payments against watchlists or sanctions. Monitoring looks across time for behavior that a single payment doesn’t reveal.
A monitoring system may flag an unusual spike in payments, rapid transfers, or money flowing rapidly through an account. All of that can trigger an alert. The reviewer then needs to decide whether the activity is just part of the customer’s usual behavior or not.
Institutions should give each alert a place to go. The process should clearly state who reviews each alert, when escalation is needed, and where the final decision is recorded. If activity meets the reporting criteria for the specific situation, the institution can submit a suspicious activity report via required channels. An alert just starts a review.
iDenfy’s transaction monitoring software supports custom conditions and velocity rules that scan volume or transaction counts in a chosen period. It also provides configurable risk scores, tiered investigations, and report exports for submission via a regulator’s own channel.
Records of how decisions were made
If a decision is reviewed later, there should be a record of what happened and why it happened. This means keeping identity checks, risk assessments, ownership information, and investigation notes in a secure place accessible only to authorized employees.
FATF’s recordkeeping standard calls for at least five years of transaction records. It also calls for CDD records to be kept for at least five years after a relationship ends or an occasional transaction goes through. Local law determines the obligations.
The people behind the process also matter. For US banks, AML program requirements include independent testing, internal controls, a designated compliance person, and staff training. Regarding these responsibilities, employees should understand who tackles unresolved identity checks, who reviews escalations, and where policy update information is kept. Testing a few realistic cases can reveal weaknesses that need fixing.
How iDenfy helps
iDenfy combines identity verification, business verification, and AML screening in one place. iDenfy’s fintech identity verification service includes biometric and document checks, business registry cross-checks, and many ways to add verification for an existing service. This helps institutions handle both companies and people. Still, it’s important to compare the provider’s documents, registry coverage, and integrations with the customers and countries the institution deals with.
iDenfy’s monitoring tools are useful beyond onboarding. Because transaction review can sit alongside identity, business, and screening data, an investigator gains more context to decide whether an alert warrants deeper attention.
It’s important to try realistic cases during a demo: an individual application, a company with multiple ownership layers, and a transaction alert. Test if reviewers can request evidence, explain decisions, and retrieve them later.
Also, take a look at what takes place when information changes. If a company enters a new market or ownership changes, the person reviewing later payments should be able to access the updated profile. An ideal setup is one that the institution can adapt to its obligations and use consistently.
Conclusion
Generally, KYC and KYB establish who you’re dealing with, while AML controls and transaction monitoring continue to assess the relationship after the account is opened. This connection supports ongoing oversight rather than treating verification as a one-time process.
In 2026, financial institutions should focus on jurisdiction, effective dates, and the difference between a possible match and a confirmed concern. Clear procedures and reliable records mean those decisions become easier to explain. Explore iDenfy’s fintech identity verification services to see how it could support your institution’s compliance needs.
FAQ
What is the difference between KYC, AML, and KYB?
KYC is the process of identifying and understanding customers. KYB analyzes business customers, including ownership and control. AML is another framework that combines customer checks, monitoring, internal controls, and suspicious activity reporting to help detect and stop money laundering.
What documents are required for KYB?
Usually, KYB checks require registration records, business addresses, ownership information, and any relevant operating licenses. Institutions may also need identification documents for beneficial owners and representatives. Exact requirements depend on where the institution is operating, the services being provided, business structure, and risk assessment.
How often should customer information be updated?
Update information when applicable rules and risk-based procedures require it, including when changes raise doubts about existing records. Review frequency depends on the relationship and jurisdiction. Don’t assume every customer needs the same checks on a single fixed annual review schedule.
Can software handle all AML compliance requirements?
Tools like iDenfy can help with screening, verification, monitoring, and case management. Institutions still need the appropriate policies in place, trained staff, oversight, and reporting. Institutions should use tools that align with their regulatory obligations.
