Payment gateway and card processing for crypto exchanges with a US LLC

We arrange payment gateway and card processing for US LLC crypto exchanges by matching your specific operational needs to acquirers and gateway providers that understand the digital asset space. We begin by reviewing your existing checkout flow, target markets, and desired payment methods, focusing on fiat-to-crypto on-ramps which typically use the 6051 (quasi-cash) MCC. This informs our selection of a technical gateway that can integrate with the specialist acquirers your profile can access.

Our process involves defining the integration scope, ensuring correct 3-D Secure implementation to mitigate fraud, and specifying your fraud tooling requirements. We then compile a comprehensive onboarding file, highlighting your VASP registration, AML policies, and transaction monitoring capabilities. This file is submitted to suitable providers in our network, including both specialist US acquirers and international institutions comfortable with the crypto industry. We also plan payment routing and cascading logic, so that if one acquirer declines a transaction, it can be seamlessly routed to another, protecting your revenue and authorisation rates.

Underwriters for crypto exchanges registered as US LLCs focus on compliance, fraud, and sanctions risk. Your VASP (Virtual Asset Service Provider) or CASP (Crypto-Asset Service Provider) registration is the first item they will verify, as it is a prerequisite for regulated activity. They will scrutinise your AML/CFT policy, seeking evidence of a robust framework for KYC/KYB, transaction monitoring, and suspicious activity reporting. The contract with your blockchain analytics provider will be reviewed to ensure you can comply with the Travel Rule and screen wallets for sanctions exposure.

Underwriters will also assess your practical defences against fiat on-ramp fraud. They will examine your integration method, PCI DSS compliance scope, and mandatory use of 3-D Secure on all card transactions. Marketing materials and traffic sources are checked to ensure you are not making misleading claims or targeting prohibited jurisdictions. Finally, they will review your proposed transaction descriptors to ensure they are clear and reduce the likelihood of customer confusion leading to chargebacks. They need to see a professional operation, not just a registered LLC.

Using a US LLC for a crypto exchange presents specific opportunities and challenges for payment processing. The LLC structure, commonly from states like Wyoming or Delaware, is straightforward to establish, but obtaining an Employer Identification Number (EIN) from the IRS can take several weeks for non-resident owners, which is a critical step for onboarding. While the US offers a large domestic market, most mainstream US acquirers are hesitant to work with crypto-related businesses, especially those with non-resident UBOs.

Consequently, access to USD processing often requires specialist domestic acquirers or international providers who are open to the 6051 MCC. We leverage these relationships to place US LLCs. For EUR and GBP on-ramps, we typically turn to EEA-licensed EMIs and payment institutions. Underwriters will expect to see evidence of genuine operations and management in the US, even if a physical office is not required. For tax, foreign-owned single-member LLCs have specific reporting obligations, such as filing Form 5472, and while we do not provide tax advice, demonstrating a clear corporate structure is vital for compliance-focused providers.

Payment gateways for US LLC crypto exchanges are often declined or later terminated due to failures in compliance and risk management. A common reason for rejection is an incomplete or missing VASP registration where one is required. Providers will not engage with unlicensed exchanges. Another major factor is a weak AML/CFT framework. If your policies are generic, you cannot demonstrate effective KYC, or you lack sophisticated blockchain analytics for wallet screening, underwriters will assume high sanctions and illicit finance risk and decline the file.

Accounts may be closed post-approval due to high chargeback rates stemming from on-ramp fraud. Card networks monitor dispute ratios closely, and acquirers will terminate merchants that exceed thresholds. This often happens when an exchange has poor fraud controls or does not enforce 3-D Secure. Finally, any evidence of sanctionable activity, such as processing payments for users in sanctioned jurisdictions or failing to screen high-risk wallets, can lead to immediate termination. Our file preparation process mitigates these risks by documenting your controls and ensuring your business model is presented transparently from the outset.

For a US LLC crypto exchange, securing a payment gateway typically takes one to four weeks once the underlying card acquiring facility is approved. The acquiring relationship is the most time-consuming part of the process. Once an acquirer has issued a merchant ID (MID), the technical gateway integration can proceed quickly.

Onboarding begins with our team preparing a detailed file for submission to our network of acquiring partners. After a provider is selected and approved, we coordinate the technical go-live. This involves connecting your platform to the gateway via API, testing the integration, and ensuring that fraud tools and 3-D Secure are active. We also help configure routing to enable cascading authorisations if you have multiple MIDs.

To keep your gateway and acquiring accounts in good standing, you must actively manage fraud and chargebacks, adhere strictly to your stated AML/CFT policies, and respond promptly to any compliance requests from the acquirer. We advise on best practices for maintaining a low-risk profile, ensuring you can continue processing fiat payments smoothly as your exchange grows.