How to Build an AML Compliance Program for Your Crypto Business

As cryptocurrency continues to gain traction in the mainstream, regulatory scrutiny has also increased in tandem. If you’re running a crypto business in the U.S., such as an exchange, wallet provider, or DeFi platform, you’re likely subject to Anti-Money Laundering (AML) obligations under federal law.

This guide outlines the steps to establish a robust AML compliance program that meets legal requirements and safeguards your business.

Understanding Your Legal Obligations

Under the Bank Secrecy Act (BSA), enforced by the Financial Crimes Enforcement Network (FinCEN), many crypto businesses are considered “money services businesses” (MSBs). As an MSB, you’re required to:

• Register with FinCEN
• Develop and implement an AML program
• Keep certain records
• File reports like Suspicious Activity Reports (SARs) and Currency Transaction Reports (CTRs)

Legal Reference: [31 U.S.C. §5311 et seq.; 31 CFR Chapter X]

Core Components of an AML Program

FinCEN requires your AML program to be “risk-based,” meaning it should be tailored to your specific business model and the risks it faces. Your AML program must include:

• Internal Policies, Procedures, and Controls: These are your step-by-step instructions for how your business will detect and report suspicious activity.
• A Designated Compliance Officer: This person is responsible for overseeing the day-to-day operations of your Anti-Money Laundering (AML) efforts.
• Ongoing Employee Training: All employees in your organization should understand your AML policies and be aware of how to comply with them.
• Independent Testing: This is like an audit. An outside party should periodically test your AML program to ensure it’s effective.

Legal Reference: [31 CFR §1022.210]

Know Your Customer (KYC) Procedures

KYC is the first line of defense against money laundering. It involves:

• Customer Identification Program (CIP): You must collect information such as name, date of birth, address, and a valid ID number (e.g., Social Security Number).
• Customer Due Diligence (CDD): You must understand the nature and purpose of the business relationship.
• Enhanced Due Diligence (EDD): For higher-risk customers (like politically exposed persons or those transacting large sums), you’ll need more rigorous checks.

Legal Reference: [FinCEN CDD Rule – 31 CFR §1010.230]

Monitor and Report Suspicious Activity

You’re required to monitor transactions for red flags such as:

• Large or rapid movement of funds
• Use of mixing services or privacy coins
• Structuring (breaking transactions into smaller pieces to avoid reporting thresholds)

If you detect suspicious activity, you must file a Suspicious Activity Report (SAR) with FinCEN.

Legal Reference: [31 CFR §1022.320]

Stay Up to Date

Crypto is evolving, and so are the rules. Regularly check FinCEN guidance and updates from the Office of Foreign Assets Control (OFAC), which enforces sanctions that your business must also comply with.

You can subscribe to FinCEN alerts and consult with experienced legal counsel in crypto regulations to ensure your AML program evolves in line with the law.

Final Thoughts

An effective AML compliance program is not just a legal obligation—it’s a business imperative. Building a system that can detect and deter financial crime helps your company build trust with customers, regulators, and partners.

At Hodder Law, we help crypto businesses navigate the regulatory landscape and build tailored compliance programs. Contact us to learn how we can support your compliance journey.

This post is intended for informational purposes only and does not constitute legal advice.