What is KYT (Know Your Transaction) and Why Crypto Businesses Need it Alongside KYC

In 2017, the total global crypto user base sat at around 30 million people. By 2024, that number had crossed 833 million — a growth of over 2,600% in seven years. The market cap went from roughly $100 billion to nearly $3 trillion at its peak. Entire industries, payment rails, and business models got built on top of it.

The scale is hard to overstate. Asia-Pacific alone now accounts for 350 million active wallet users. Africa is the fastest-growing region. Across Europe, Latin America, and the Middle East, adoption continues to climb. The growth is driven by remittances, inflation hedging, and a growing appetite for alternatives to traditional banking.

However, where money flows, bad actors follow. According to Chainalysis, illicit cryptocurrency activity reached $40.9 billion in 2024, with projections suggesting the real figure could exceed $51 billion once revised estimates catch up.

Regulators noticed. Over the last three years, compliance frameworks around crypto have tightened significantly: MiCA in the EU, updated FATF guidance on VASPs, stricter FinCEN expectations in the US. The era of "crypto moves fast and breaks rules" is over.

That's the context for this guide. KYC became the baseline for operating in this space. But it's no longer enough on its own. This guide covers what crypto KYT is, how it works, why it's required, and how to automate it without building a compliance team from scratch.

What is KYT?

KYT stands for Know Your Transaction. It's the process of monitoring blockchain transactions in real time to detect suspicious activity, assess risk, and stay compliant with AML and CTF requirements.

Where KYC asks who this person is, KYT asks what they are doing with their funds.

The distinction matters more in crypto than anywhere else. On a blockchain, identities are pseudonymous — but transactions are permanent, public, and traceable. Every transfer has a record. KYT tools read that record continuously, assign risk scores to transactions and wallet addresses, and flag activity that looks like it shouldn't be there.

In practice, that means screening incoming and outgoing transfers against known high-risk addresses — darknet markets, sanctioned entities, mixing services — and detecting behavioral patterns that suggest layering, structuring, or rapid fund movement. Not after the fact. In real time, or close to it.

KYT is sometimes called crypto transaction monitoring. The terms are interchangeable. What matters is the function: continuous oversight of what moves through your platform, not just a one-time check at the door.

Why Crypto Businesses Need KYT

The obvious reason to implement KYT is regulatory: FATF, MiCA, and most national AML frameworks now expect ongoing transaction monitoring, not just identity verification. But that's the floor, not the ceiling.

There are three business reasons that matter just as much:

• Banking and PSP access. Traditional financial institutions are selective about which crypto businesses they work with. A documented KYT process signals that you have visibility over your funds. Without it, securing fiat rails or payment gateway partnerships gets significantly harder.
• Fraud prevention. KYT doesn't only catch money laundering. High-velocity transfers, unusual deposit patterns, and activity linked to known scam addresses are all detectable early. Catching these before they escalate protects your platform and your users.
• Reputation. One high-profile incident does lasting damage. Compliance at onboarding isn't a defense if the transaction trail tells a different story.

Who Needs to Monitor Transactions

The short answer: any business that moves crypto on behalf of users.

That means:

• crypto exchanges;
• wallet providers;
• on/off ramp services;
• payment processors that accept digital assets;
• NFT marketplaces handling significant volume.

If users can deposit, withdraw, or transfer funds through your platform — you're in scope.

Size doesn't change this. Regulators don't grade on a curve for early-stage companies. A small exchange with 5,000 users has the same obligation to monitor transactions as a large one. The difference is in how you do it, not whether you do it.

How Know Your Transaction Monitoring Works

At its core, KYT is a continuous screening layer that sits on top of your transaction flow. Every time a user deposits, withdraws, or transfers funds, the system evaluates that movement and assigns it a risk score.

The exact process will differ depending on the tools you use, but generally crypto transaction monitoring involves:

Wallet Screening

Before a transaction is processed, the wallet address involved gets checked against databases of known high-risk entities like sanctioned addresses, wallets linked to darknet markets, mixer services, ransomware operators, and other flagged sources. This happens on both sides: where funds are coming from, and where they're going.

A wallet doesn't have to be directly linked to illicit activity to raise a flag. KYT tools also measure indirect exposure — if a wallet received funds from a high-risk address two hops ago, that still factors into the risk score. This is important, because sophisticated actors deliberately route funds through intermediaries to create distance.

Transaction Risk Scoring

Each transaction gets scored based on a combination of factors: the risk profile of the counterparty wallet, the amount, the speed of movement, the asset type, and behavioral context. A new user sending a small amount to a verified exchange looks very different from a new user immediately moving funds to an unhosted wallet after deposit.

Scores are typically categorized as low, medium, or high risk. Most transactions clear automatically. Medium and high-risk ones generate alerts for review.

Alerts and Case Management

When a transaction crosses a risk threshold, it gets flagged. A compliance officer reviews the alert, looks at the transaction history and wallet context, and decides what to do: clear it, request additional information from the user, freeze the funds, or file a Suspicious Activity Report.

Good KYT tools make this workable at scale. Bulk alert management, case notes, audit trails, and automated re-checks mean a small compliance team can stay on top of volume that would otherwise require a much larger operation.

Ongoing Monitoring

KYT isn't a one-time check. Wallets that looked clean at onboarding can later appear on sanctions lists. Addresses get flagged after law enforcement actions. Risk profiles change.

That's why continuous monitoring matters — not just screening at the point of transaction, but periodic re-evaluation of wallet addresses already in your system.

KYT and Regulations in Different Regions

The global baseline comes from FATF. Through Recommendation 15, the Financial Action Task Force extended full AML/CFT obligations to VASPs requiring registration or licensing, ongoing transaction monitoring, and suspicious activity reporting. Recommendation 16, the Travel Rule, goes further: any transfer above $1,000 must carry verified sender and recipient information, shared between counterparty VASPs.

As of 2025, 85 of 117 jurisdictions have passed or are in the process of passing Travel Rule legislation. Implementation varies significantly by region, so let’s dive in.

European Union

The EU is the most advanced jurisdiction globally when it comes to crypto-specific regulation. MiCA came into full force on December 30, 2024, establishing uniform rules for licensing, governance, and conduct across all 27 member states. The Travel Rule, implemented via the Transfer of Funds Regulation, applies to all crypto transfers with no minimum threshold, which puts the EU ahead of the FATF baseline.

Under AMLR and TFR, CASPs are required to apply customer due diligence, file suspicious transaction reports with Financial Intelligence Units, comply with the Travel Rule, disclose beneficial ownership, and assist authorities via blockchain analysis and automated monitoring systems.

A new EU Anti-Money Laundering Authority (AMLA) was also established in 2024, with powers to directly supervise high-risk CASPs. In practice, this means some crypto businesses will face regulatory oversight at the EU level, not just the national level.

Key regulators by country include BaFin (Germany), AMF (France), CSSF (Luxembourg), CNMV (Spain). Transitional arrangements allow firms operating before December 2024 to continue under national rules until July 2026 — but only if they're actively pursuing a MiCA license.

United States

The US has no single unified crypto law. Compliance obligations come from multiple federal agencies like FinCEN, SEC, CFTC, OFAC plus state-level requirements that vary significantly.

The core AML obligation sits with FinCEN under the Bank Secrecy Act: crypto businesses that qualify as money services businesses must implement AML programs, file Suspicious Activity Reports, and maintain transaction records. OFAC sanctions screening applies to all US-nexus businesses regardless of size.

Because there is no unified federal crypto law, businesses must continuously track evolving requirements across multiple agencies and remain agile as new rules emerge.

However, 2025 brought some clarity: the GENIUS Act established a federal framework for stablecoin issuers, and the CLARITY Act passed the House with provisions for dual SEC/CFTC registration and custody requirements. Full market structure legislation is still in progress.

The US remains a high-enforcement environment. Fines for AML failures have historically been large, and OFAC violations carry strict liability. KYT isn't optional here; it's the mechanism by which businesses demonstrate they're not facilitating sanctions evasion.

Asia-Pacific

Countries like Singapore and Japan have established progressive licensing systems designed to attract crypto innovation. The region accounts for roughly 350 million active crypto wallet users (the largest concentration globally) and regulatory frameworks are maturing quickly.

Singapore is the clearest reference point. The Monetary Authority of Singapore (MAS) requires all Digital Payment Token service providers to implement transaction monitoring, sanctions screening, suspicious transaction reporting, Travel Rule compliance, and five-year record-keeping.

Singapore secured approximately $627 million in crypto company funding in 2023 and had authorized 19 cryptocurrency service providers as of early 2024. It's a sought-after jurisdiction but MAS has made clear that authorization comes with rigorous compliance expectations.

Japan has the region's most mature regime, treating crypto as a registered financial product under the Financial Services Agency (FSA). AML rules are strict and Travel Rule implementation is advanced.

Hong Kong is moving fast. The Securities and Futures Commission introduced the ASPIRe regulatory roadmap in 2025, the Stablecoin Ordinance came into effect in August 2025, and the first VASP licenses under the new regime are expected in early 2026.

Risk note: Vietnam, Cambodia, and parts of Southeast Asia appear regularly on FATF grey lists and have weaker enforcement infrastructure. Transactions with counterparties in these regions warrant enhanced due diligence regardless of local rules.

Middle East

The UAE has emerged as the region's dominant crypto hub. The UAE's digital asset framework matured significantly in 2025, with the Central Bank, Dubai's VARA, and Abu Dhabi's FSRA consolidating stablecoin, tokenization, and AML oversight into a coherent national strategy. VARA released Rulebook 2.0 in May 2025, tightening governance, reporting, and AML standards for all licensed virtual asset activities.

Crucially, the EU removed the UAE from its high-risk AML list in 2025 which is a significant signal that the jurisdiction's compliance posture is now taken seriously internationally.

Bahrain and Saudi Arabia are also developing frameworks, but at an earlier stage. For businesses targeting GCC markets, UAE licensing remains the primary path to regional legitimacy.

The United Kingdom

Post-Brexit, the UK operates independently of MiCA. The Financial Conduct Authority requires all crypto asset businesses serving UK customers to register under the Money Laundering Regulations.

All crypto promotions must be FCA-approved, with mandatory risk warnings. The government has outlined a framework for stablecoin regulation and expanded supervisory powers for payment system regulators with final rules still in development through 2025-2026.

The UK is a significant market where roughly 12% of adults hold crypto, but regulatory delivery has been slower than initially expected. Whether the UK can convert consultation momentum into a clear, competitive framework remains one of the key questions for 2026.

Best Practices for Implementing KYT

Most crypto businesses approach KYT the same way they approached KYC in the early days: they know they need it, they're not sure where to start, and they assume it's more complicated than it actually is. The mechanics aren't the hard part. Getting the foundation right is.

Start with Risk Appetite

Before you pick a vendor or configure a single rule, define what risk looks like for your specific business. A crypto exchange serving customers in a single regulated market has a different exposure profile than a payments platform operating across multiple jurisdictions. Your thresholds, alert rules, and escalation workflows should reflect that.

The FATF risk-based approach explicitly allows businesses to calibrate controls to their actual risk profile. Use that flexibility deliberately, and document the reasoning. Regulators want to see that you've thought it through, not just that you've switched something on.

Integrate KYT with KYC

The most common implementation mistake is treating KYT as a separate layer. A transaction risk score means more when it's connected to a user's identity profile, verification history, and risk tier. A newly onboarded account sending funds to a high-risk wallet is a different situation than an established user with the same behavior.

Build your compliance stack so that transactional data and identity data inform each other. Alerts without context create noise. Identity data without transaction monitoring creates blind spots.

Use Allpass.ai to run these two operations together, alongside other KYC and AML operations.

Set Thresholds You Can Actually Act on

Alert fatigue is a real operational problem. For example, If 40% of transactions get flagged as medium risk, your compliance team will stop treating those alerts seriously and miss the ones that matter. Calibrate thresholds so that alerts are meaningful, not just comprehensive.

Start conservatively, review alert volume after the first few weeks, and adjust.

Screen Both Directions

Screening outbound transactions is obvious. Screening inbound is just as important and more often overlooked. Receiving funds from a sanctioned wallet or darknet market address creates liability even if you didn't initiate the movement. High-risk inbound transfers should be flagged before they're credited to accounts, not after.

With Allpass.ai for example, you can screen transactions both ways. The Source of Funds lets you analyze the origins of the funds received by the monitored wallet. You can identify the risk levels and potential issues linked to where the funds came from.

And you have Use of Funds which provides an analysis of how funds leaving the wallet are being used, helping to determine if the transactions align with legitimate activity.

Make Sure the Data Are Current

Sanctions lists, flagged wallet databases, and high-risk address registries update constantly. A KYT system running on a stale database creates gaps. Make sure your vendor provides continuous updates and that existing wallets are re-screened automatically when new data comes in.

This matters most around sanctions designations. When OFAC or the EU adds a new entity, wallets that looked clean yesterday become high-risk overnight.

We make sure to keep up, and add new databases as well as monitor updates regularly. You can see all the sources in this article.

Make Everything Auditable

When a regulator or banking partner asks how you handle transaction monitoring, "we have a tool" is not an answer. You need to show your risk methodology, alert thresholds and the reasoning behind them, your escalation process, and your SAR filing history.

Good compliance is auditable compliance. Build your KYT workflow so that every decision leaves a documented record. Allpass.ai can help you along the way, with detailed audit trails and regulator-ready reports, that you can download when needed.

Should You Automate KYT?

The short answer is yes. The longer answer is that the question isn't really whether to automate, but how much of your compliance workflow you can afford to run manually as volume grows.

Manual transaction review has a hard ceiling. A compliance officer can meaningfully investigate maybe 20–30 alerts per day. Go above that and quality drops, things get missed, and the process becomes theater rather than compliance.

Automated KYT removes that ceiling. Routine screening, risk scoring, and low-risk transaction clearance happen without human involvement. Officers stay focused on cases that actually require judgment.

Industry estimates put the reduction in manual compliance work at 50–60% after automation. That's not just time saved. For teams, it means compliance capacity scales with transaction volume rather than headcount. For fractional officers managing multiple clients simultaneously automation is a prerequisite.

Webport Technology, one of our customers, put it directly: manual work dropped by 60% and onboarding time fell to a third of what it was before. That's consistent with what most businesses see when they move from fragmented, partly-manual processes to a unified platform.

The other cost of manual review that's harder to quantify is inconsistency. Rules applied by people vary. The same transaction gets different treatment depending on who reviews it, what day it is, how busy the queue is. Automated systems apply the same logic every time which matters both for compliance quality and for audit defensibility.

Get continuous crypto transaction monitoring and KYC in one system. Create an account and see how much of your compliance workflow you can take off your plate.