Payment gateway and card processing for affiliate networks with a US LLC

Our process begins with a review of your existing or planned checkout flow, target markets, and desired payment methods. For a US LLC-based affiliate network, this means understanding which advertisers you serve and how they pay you. We analyse your advertiser verticals, traffic sources, and the currencies you need to accept, typically starting with USD.

Based on this, we identify the appropriate gateway and acquiring partners. A US LLC can connect to US domestic acquirers, but for certain advertiser categories, international acquirers may be more suitable. We match you with providers whose risk appetite aligns with your business. We then define the integration scope, whether a simple hosted payment page or a more complex API integration, and specify the required 3-D Secure and fraud prevention tooling.

We compile a comprehensive onboarding file including your articles of organisation, EIN confirmation, operating agreement, and advertiser vetting policies. Finally, we manage the submission to the selected providers, coordinate the technical integration, and help plan payment routing to ensure resilience. This ensures that if one acquiring path fails, your ability to accept payments is not compromised.

Underwriters for payment gateways and acquirers focus on five key areas for a US LLC operating an affiliate network. First, they examine your technical integration and PCI DSS compliance scope. They need to understand how you handle card data, even if you use a hosted solution to minimise your compliance burden.

Second, they scrutinise your traffic sources and marketing methods. Compliance teams want to see that you are not driving traffic from illicit sources and that your marketing claims are verifiable. Third, your proposed billing descriptors are reviewed to ensure they clearly identify your company and reduce the risk of confused customers initiating chargebacks.

Fourth, your fraud controls and use of 3-D Secure are critical. Underwriters will assess the tools you have in place to filter fraudulent transactions. For affiliate networks, the primary risk is often related to the legitimacy of advertisers, so your advertiser vetting process is the fifth and most important area. They will review your policy for screening advertisers and may ask for a list of your top partners to assess the underlying verticals you are exposed to.

Using a US LLC offers flexibility but comes with specific underwriting considerations. The choice of state (e.g., Wyoming, Delaware) is less important to providers than the evidence of a legitimate business operation. While no local office is required, having a US business address, a US bank account, and clear operational substance significantly strengthens your application.

As a US entity, your primary processing currency will be USD. We can arrange for settlement in EUR and GBP, typically through accounts with UK or EEA-licensed EMIs that are partnered with the gateway. The Internal Revenue Service (IRS) requires an Employer Identification Number (EIN) for the LLC, and obtaining this can take several weeks for non-resident owners, which can affect the onboarding timeline.

Regulators like FinCEN are focused on money services businesses, but affiliate network payouts are generally not considered money transmission. However, your acquiring partners will still expect robust anti-money laundering (AML) controls for payee screening. For tax, foreign-owned single-member LLCs have specific reporting obligations, such as filing Form 5472, and while we do not provide tax advice, we ensure your corporate structure is presented clearly to providers.

Gateway applications for US LLC affiliate networks are often declined due to risks associated with advertiser verticals and traffic sources. If the application does not clearly explain what is being advertised and how traffic is generated, underwriters will assume the worst. A file that lacks a detailed advertiser vetting policy or evidence of its enforcement is a common reason for rejection. We prevent this by documenting your procedures for screening advertisers and ensuring you do not work with prohibited industries.

Another issue is a perceived lack of substance. An LLC with no clear connection to the US, a virtual office, and no evidence of real business activity can be seen as a shell company. We help you demonstrate the legitimacy of your operation, using your website, marketing materials, and corporate documents to build a stronger case.

Finally, technical weakness can lead to declines. A poor integration plan, failure to implement 3-D Secure, or inadequate fraud tools signal risk to the acquirer. Our process defines these technical requirements from the outset, ensuring the gateway and its connected acquirers are confident in your ability to manage transaction risk effectively. We also prepare you for questions about payee screening for your affiliate payouts, as this is a key area of partner concern.

For a US LLC affiliate network, securing a payment gateway can typically take one to four weeks once the underlying acquiring relationships are approved. The total timeline depends on the complexity of your business and the risk profile of your advertisers. If your LLC and EIN are already established, the process is faster. If not, obtaining an EIN as a non-resident can add two to six weeks to the timeline.

Onboarding begins with our file preparation, followed by submission to the chosen gateway and acquiring partners. After their compliance review, you will receive a technical integration package. We coordinate with your developers to ensure a smooth go-live. This includes configuring payment routing, setting up fraud tools, and testing the transaction flow.

To stay live, it is crucial to maintain the compliance standards presented in your application. This means consistently enforcing your advertiser vetting policy, monitoring transaction patterns for signs of fraud, and keeping chargeback rates low. We advise on best practices for ongoing monitoring and communication with your payment partners, helping you adapt to any changes in their rules or risk appetite, ensuring a stable and long-term processing relationship.