KYC vs KYB: What They Mean and How They Work

For as long as money has changed hands, it's mattered to know who's handling it. Even a harmless bet with a friend works this way: before you put anything down, you make sure they're good for it. In business, the formal version of that instinct is KYC and KYB. These are customer due diligence procedures, and they're what help regulated industries like financial services protect themselves from exposure to risks like money laundering, terrorist financing, and other financial crimes.

Both have the same goal: verifying the identity of a person or company before entering a business relationship to comply with . As their slightly different names suggest, where they part ways is scope. KYC verifies people; KYB verifies businesses. The distinction can seem small, but if you're the one going through a verification check, it can be helpful to know how they differ. Understanding what to expect, how the process works, and which questions the verifier is trying to answer can put you in a better position.

For many business owners, one of the first places you'll come across KYC and KYB is opening a business account, including with a business banking platform like Slash.¹ Knowing what each check tends to look for can help you know what to expect, so here's how KYC and KYB generally work, where they differ, and what you may be asked to provide.

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What is KYC?

KYC stands for "know your customer." It's the process a financial institution uses to confirm that a person is who they claim to be, either before or during a financial relationship. At its core, KYC answers a simple question: is this individual real, identifiable, and reasonably safe to do business with?

The term gets used loosely, but it usually refers to a set of checks built into a wider compliance program. Banks, payment companies, and other regulated financial firms run KYC as part of their anti-money laundering (AML) controls, sanctions screening (checking a person against government lists of barred or sanctioned individuals), and customer due diligence, the broader practice of gathering enough information to understand and rate the risk a customer poses.

The depth of the review usually scales with the risk an applicant appears to pose. Someone based in the provider's home country with a stable job and a long financial history may warrant little scrutiny. Someone with a thin financial history, mismatched documents, or ties to a region flagged as higher-risk for financial crime may trigger enhanced due diligence, a more intensive version of the same process involving additional documents and checks.

What is KYB?

KYB stands for "know your business." Where KYC focuses on a person, KYB focuses on an organization. The goal is to ensure that a company isn’t a vessel for fraud, like a shell company, which is a business that exists on paper but has no real operations behind it – often set up to move or hide money. By understanding the people, operations, and ownership behind a business, providers can enter a relationship with more confidence.

KYB checks a few things. First, that the company is legally registered and traceable through government or corporate registries rather than existing only on paper. Second, that its basic details (legal name, registration number, address, structure) match what those official records say. Third, that the business is tied to its disclosed beneficial owners and controlling individuals, so the firm running the check can see who ultimately owns or controls the entity.

There’s two terms you'll see throughout any KYB process: beneficial owners and UBOs. A beneficial owner is a person who owns or controls a large share of a business, even if their name isn't on the official paperwork. A UBO, or ultimate beneficial owner, is the real human at the very top of the ownership chain, once you strip away any holding companies, trusts, or layers in between. Much of KYB exists to make sure those people are identified rather than hidden behind a corporate structure.

KYC vs KYB: Key Differences

KYC and KYB share the same goal, confirming you know who you're dealing with. Because they apply to different subjects, however, the work involved in making that confirmation is different as a result. Three dimensions capture most of the distinction:

Verification target

The clearest difference is who or what is being verified. KYC verifies a person: an individual, their identity, and their risk profile. KYB verifies an entity: a company, its legal existence, and its structure.

The different targets change how each process is carried out and completed. With KYC, the review is largely complete once the institution is satisfied the individual is genuine and accounted for. With KYB, verifying the entity is only the start, because a company can't really be known without also knowing the people who own and control it. For onboarding, that means a KYB check almost always pulls individual verification along with it, while a KYC check often stands on its own.

Verification scope

KYB is generally wider in scope than KYC because a business is rarely a single, static thing. A company may sit inside a group of related entities, be owned by other companies, or have several individuals who each hold a stake or a controlling role. The practical implication is that KYB is usually a more involved and time-consuming process than KYC; the more complex a company's ownership, the longer and more document-heavy onboarding tends to be.

Risk focus

Both processes are intended for assessing risk and maintaining compliance, not for proving guilt or innocence. KYC is oriented around the risk a specific person might carry: are they on a sanctions list, do they appear in adverse media, does their background suggest elevated risk? KYB is oriented around risk factors more in-line with business functions: is this a real operating business or a shell with no activity, is the ownership deliberately obscured in company documents, does the structure look built to move money quietly?

A flag during onboarding doesn’t always mean an outright no. More often than not, it means the provider needs more from you (more documentation, a better explanation of ownership structure) before they can move forward.

When Does KYC and KYB Apply to Your Business?

Which process you run into depends on the relationship you're entering and who's actually being verified: you as an individual, your company as an entity, or both. The question to ask is which of those a given provider needs to confirm:

When you're acting as an individual, expect KYC. If you're entering a relationship in your own name, with no company involved, the only risk a provider needs to assess is yours. Signing up for a payment service personally or opening an account as an individual falls here.
When your business is the subject, expect KYB. This would apply when a vendor onboards your business as a customer, or a platform reviews your company before extending services. You'll be asked for records about the business itself, not just an ID, so it helps to have your registration, beneficial ownership details, and company information ready.
When you open a financial relationship for your company, expect both. Opening business banking, getting corporate cards, or setting up cross-border payments typically triggers KYB on the entity and KYC on the individuals who own, control, or act on its behalf.

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What Information is Collected During KYC and KYB Verification?

Because KYC and KYB verify different subjects, they ask for different information. KYC collects what's needed to confirm a person; KYB collects what's needed to confirm an entity and trace it back to its owners. The lists below are common examples rather than a fixed standard:

Common KYC requirements

KYC verification confirms a person's identity and screens for risk. Common requirements include:

Personal identity information: Legal name, date of birth, and residential address, the baseline details that establish who someone is.
Government-issued ID: A passport or driver's license that confirms the person is real and that the details they've provided are accurate.
Proof of address: A utility bill or bank statement that ties the individual to a verifiable location.
Sanctions screening: A check against government and international watchlists.
Risk-based checks: Additional verification that goes deeper when something about the profile warrants it.

Together, this information supports customer due diligence: enough of a picture of the individual to assess how much risk the relationship carries.

Common KYB requirements

KYB verification centers on the company and the people behind it. Common requirements include:

Business registration: Details confirming the entity is legally formed and traceable through official records.
Tax identification number: The company's tax ID.
Operating address: Where the business actually functions.
Ownership structure: How the company is owned and controlled, the part that sets KYB apart from verifying any other type of customer.
Relevant licenses: Any permits the business needs to operate legally in its field.
Beneficial owners and UBOs: The individuals who ultimately own or control the company.

Pulling these elements together gives the institution what it needs for due diligence at the entity level: a verified business, mapped to verified people.

Why KYC and KYB Matter for Compliance and Risk Management

KYC and KYB are the front line of how regulated financial institutions meet their anti-money laundering (AML) obligations, the body of rules designed to keep the financial system from being used to disguise the origins of illegally obtained money. Alongside sanctions screening and other financial crime controls, these processes give an institution a basis for spotting and managing risks it could otherwise take on blindly.

It helps to see these as part of a layered system rather than standalone tasks. Customer due diligence (CDD) is the baseline: gather enough to understand and rate the risk of a given relationship. When a case looks higher risk, because the ownership is complex, the activity is unusual, or someone involved is a politically exposed person (a PEP, meaning an individual in a prominent public position who may carry elevated bribery or corruption risk), institutions can step up to enhanced due diligence (EDD), digging deeper and gathering more before and during the relationship.

None of this is a one-time event. Risk profiles change, ownership shifts, a business pivots, a person's circumstances move them onto a watchlist. So these processes also support ongoing monitoring of activity, periodic reviews that re-check a relationship at set intervals, and investigation when something unusual surfaces. Verification tells you who you onboarded; ongoing review is how you keep knowing your customer after the account is open.

Manage Your Business’s Finances Securely with Slash

A provider won't move money for a business it can't see clearly. That's the standard you've just read about, and it's a reasonable one to hold yourself to. Once your accounts are open, you need to know your own business at least as well as a bank does: where the cash is, what's being spent, who's getting paid, how each entity is doing. That's hard to do when the answers live in four different places that don't share anything with each other.

Slash is a business banking platform that reaches owners traditional banks often can't. You get your accounts, cards, payment tools, and financial controls in one dashboard, and you can open a Global USD account from over 130 countries without a US-incorporated entity.³ Plenty of capable businesses simply haven't had a straightforward route to US-dollar banking. With Slash, you do.

Here’s what else you get when you make the switch to Slash:

Slash Visa® Platinum Card: Earn up to 2% cash back, set custom spending controls, and issue unlimited virtual cards for team expenses, vendor payments, and subscriptions.
Multiple payment methods: Send and receive same-day ACH, SWIFT wires to 180+ countries, real-time payments, and stablecoins like USDC and USDT through Slash's built-in on- and off-ramps.⁴
Expense management: Handle expense reporting with SMS receipt collection for Slash cards, simple reimbursement flows, and automatic accounting updates.
Accounting integrations: Connect Slash with QuickBooks, Xero, or Sage Intacct so your transaction data flows straight into your books, already categorized and ready for reconciliation.
Working capital financing: Access short-term financing with 30-, 60-, or 90-day repayment terms to help bridge cash flow gaps.⁵
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The clearest view of your business should be the one you have. Sign up for Slash today and gain that clarity.

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Frequently Asked Questions

What role do UBOs play in KYB?

UBOs, or ultimate beneficial owners, are the real people who own or control a business once you trace past any holding companies, trusts, or other intermediate layers. Identifying UBOs is one of the central goals of KYB, since a company can't really be verified without knowing who's behind it.

What is the difference between KYC, KYB, and KYT?

KYT, or “know your transaction,” monitors transactions for unusual or suspicious patterns, often on an ongoing basis. KYC verifies people, KYB verifies businesses, and KYT focuses on the activity.

Is KYC part of AML?

Yes. KYC is generally considered one component of a broader anti-money laundering program. Sanctions screening, transaction monitoring, and reporting obligations are other parts of the same AML framework.