Many businesses in today’s digital payments environment depend on third-party partners to handle payment processing and grow swiftly. By offering merchant accounts and associated services, an independent sales organization (ISO) serves as a go-between for companies and payment processors. This guide explains what an ISO is, where it came from, how it operates, business models and ISO types, the advantages and disadvantages of working with an ISO, and when it makes sense to partner with one. We conclude with advice on choosing the best partner and responses to commonly asked questions, and we also contrast ISOs with other sales models. What Is an Independent Sales Organization? A third-party company that sells goods or services on behalf of another company is known as an independent sales organization. In the payments sector, an ISO collaborates with a payment provider to offer merchant services, including point-of-sale (POS) systems, credit card processing, and other financial or security services, without being a part of the provider itself. In order to create a cross-selling advantage, ISOs frequently collaborate with integrated software vendors to integrate payments into business management platforms. They are paid by commissions or revenue-share agreements, run their own businesses, and are not the provider’s employees. Key characteristics include: Operates independently – ISOs are separate companies registered with major card networks; they market payment services but do not directly process funds. Not employees of the parent company – they contract with processors and acquiring banks but remain separate businesses. Paid through commissions or residual income – ISOs earn a percentage of transaction fees and often earn residuals as merchant volume grows. Often focus on specialized industries – some ISOs concentrate on high‑risk merchants, vertical markets or specific geographies. History and Evolution of Independent Sales Organizations When credit card payments and e-commerce gained popularity in the late 20th century, the ISO model was born. Acquiring banks were picky about who they allowed merchant accounts to in the early 2000s, particularly for high-risk and startup companies. By collaborating with acquiring banks and taking on some liability, independent sales organizations intervened to assist these merchants in obtaining accounts. About 80% of merchant accounts were opened by ISOs and merchant service providers by 2000, but there was little regulation of the sector, and some operators imposed exorbitant fees. As regulations and card networks became more stringent over time, ISOs were forced to register, secure bank sponsorship, and adhere to security standards. ISOs are still changing today. Many still offer traditional merchant services, but others work with software businesses to add payments to SaaS systems. The paradigm has grown beyond payments to include telecom, fintech, and B2B services. In these areas, independent resellers handle sales and onboarding while processors manage transaction processing. As payment technology has improved, several ISOs have created their own payment gateways or mobile solutions and offer other services like fraud prevention and analytics. Because of this change, there are now several different types of merchant services ISOs, SaaS-focused ISOs, and vertical-specific partners. How an Independent Sales Organization Works Independent sales groups have a set way of getting payment services to businesses. The steps below show how a normal ISO works. Contract Agreement With the Provider/Company An official agreement with a payment processor or acquiring bank is the first step in every ISO partnership. The ISO signs up with card networks, finds a sponsor bank, and agrees to follow the norms and security standards. In return, the provider lets the ISO sell merchant accounts and other services. The ISO also makes deals with merchants that spell out prices, service terms, and duties. To become a registered ISO, you have to fill out a lot of paperwork, do your homework, and pay annual fees. Product Training and Onboarding After contracts are signed, the ISO’s salespeople learn about the payment items they will be selling. They learn how to talk about processing fees, security features, and the many types of POS hardware and software. Card networks frequently require certification programs that involve compliance with the Payment Card Industry Data Security Standard (PCI DSS), fraud prevention, and risk management. Ongoing education helps ISOs keep up with new standards, trends, and technology changes. Lead Generation and Prospecting ISOs look for merchants who need help with payment processing. Clearly Payments says that one of the main jobs of an ISO is to get new merchants. They do this by marketing to potential merchants, explaining the features, prices, and benefits of their services, and customizing solutions to meet their needs. They employ ads, partnerships, and outbound sales to get leads and grow their merchant base. Sales Execution and Deal Closing After finding potential customers, ISOs help merchants fill out the application. They aid with paperwork, get financial information, and undertake basic underwriting to figure out how risky something is. Once the bank that is buying the business gives the green light, ISOs help merchants choose out hardware and software, negotiate rates, and sign contracts. ISOs work with a lot of different processors, so they can give businesses a wide range of payment alternatives and affordable prices. Ongoing Account Support (in Some Models) Many ISOs offer continuous support, which is different from processors that only handle transactions. Priority Commerce says that ISOs provide individualized and easy-to-reach customer service, help with problems, and make solutions that fit the merchant’s business. They might also offer tools to stop fraud, manage chargebacks, and other services like mobile payment solutions. Some ISOs even create their own gateways or mobile apps to keep up with the latest digital trends. Commission Payment and Reporting ISOs get paid according on how many transactions they process. Worldpay says that every time a merchant processes a card transaction, the ISO gets a cut of the transaction charge. As the volume of transactions grows, the ISO’s residual earnings also climb. A lot of ISOs also sell or rent payment terminals and charge more for premium services. To keep confidence and compliance, it’s important to report clearly to the sponsoring bank and merchant. ISO Business Model Explained ISOs make money by offering payment services again and taking a cut of the transaction fees. Their business plan has different ways to make money and pay people: Revenue Models Commission‑based – The ISO gets a set percentage of every transaction that its merchants handle. Worldpay says that ISOs usually make money through commissions that are depending on the number of transactions. Residual income model – The ISO gets payments on a regular basis during the life of a merchant account. This lets salespeople develop long-term earning streams. For a lot of agencies, residuals last as long as the merchant uses the ISO to process payments. Revenue sharing – Some ISOs work out revenue-sharing deals with software or processing partners, in which they divide fees or subscription income. Tiered incentive structures – Larger ISOs may have varied commission levels based on the number of transactions, the sorts of products sold, or the types of merchants, with the best performers getting greater payments. Compensation Structures Upfront commission – Salespeople could get a bonus for getting a merchant to sign up. This rewards the work that goes into setting up new accounts. Recurring residual payments – Payments that keep coming in are based on how many transactions are processed each month. The Cardconnect agent program says that residuals give merchants a monthly revenue for as long as they handle transactions. Performance bonuses – Merchants may get extra bonuses when they reach certain sales goals or sell more products to the same customer. Types of Independent Sales Organizations Not all ISOs work the same way. Here are several popular sorts of ISOs and how they are different. Merchant Services ISO The classic ISO concept is all about services for merchants. These companies work with payment processors and acquiring banks to offer credit card processing, point-of-sale (POS) equipment, payment gateways, and security solutions. Worldpay says that an ISO sells payment processing solutions, point-of-sale systems, and other financial services for a payments provider. Merchant services ISOs commonly work with small firms, shops, and online merchants who need payment solutions that are made just for them. ISO for SaaS Companies A lot of software companies include payments in their platforms. ISOs that focus on SaaS partnerships collaborate with integrated software vendors (ISVs) to add payment options to business management software. Worldpay said that ISOs are working more and more with ISVs to combine their sales skills with the benefits of built-in payments. These ISOs know how to integrate technology, set up subscription billing, and offer value-added services like fraud detection, analytics, and recurring payments. Channel Partner ISOs Channel partner ISOs operate through alliances with other resellers, VARs (value‑added resellers) or technology partners. They provide payment solutions as part of broader channel programs, allowing software or hardware companies to offer payments without building their own infrastructure. These ISOs handle merchant onboarding, compliance and revenue sharing, freeing the partner to focus on core products. Territory‑Based ISOs Some ISOs only work in certain locations, focusing on compliance with local laws and building partnerships with local businesses. ISOs that are based on territory may work with more than one processor, but they only work with merchants in certain states or countries. This lets them give support in the area and change to the rules and payment methods that are common in that area. Territory-based partners can help retailers get into new markets faster and with less danger of breaking the law Vertical‑Specific ISOs Vertical-specific ISOs make solutions that are specialized to industries like retail, hotel, healthcare, telecommunications, or B2B services. Priority Commerce says that ISOs offer retailers point-of-sale systems, secure payment gateways for online shopping, and mobile payment options for service providers. These ISOs know what each sector needs because they only work in one area. They can connect with specialist software and come up with unique marketing plans. Some examples are ISOs that work with high-risk businesses like cannabis or gaming, or those that focus on SaaS platforms. Benefits of Working with an Independent Sales Organization For companies Rapid market expansion – ISOs let companies get into new markets fast. They can set up merchant accounts faster than going to a bank because they already have links with several processors and acquirers. Reduced overhead costs – Companies don’t want to spend money on their own payment systems and compliance. ISOs take care of onboarding new merchants, providing continuing support, and updating technology, which lowers administrative costs. Access to industry‑specific expertise – ISOs know a lot about niche markets and can design payment solutions that fit those markets. Priority Commerce points out that ISOs provide personalized support and services that can be changed. Performance‑based cost model – With commission and residual arrangements, merchants only have to pay when they process transactions. Scalable growth – ISOs can develop with the business, adding new services or ways to pay as needed. Clearly Payments says that ISOs come in many sizes and shapes and work with organizations in many industries and places. For sales professionals Entrepreneurial opportunity – People can run their own payment business if they become registered ISOs. An ISO is different from a sales agent because an ISO signs contracts directly with banks and pays for registration, whereas an agent just sells for an ISO. Residual income potential – Agents and ISOs can make money over time by charging merchants transaction fees. Flexible business structure – ISOs have more freedom than employees because they may establish their own hours, pick their own niches, and control their own marketing. Control over territory and client relationships – Registered ISOs operate directly with merchants and sponsor banks. This lets them establish brands, determine prices, and take care of client interactions. Risks and Challenges Working with an ISO offers advantages, but there are risks to consider: Compliance and regulatory risks – Visa’s Third Party Agent Registration Program says that companies who want to open merchant accounts must follow Visa standards and PCI DSS. Acquiring banks must also check the agent’s business model, financial condition, and security status. Not meeting these criteria can result in fines or being let go. Brand control limitations – When merchants deal with an ISO, they may have less influence over prices and how customers feel about their experience. PaymentNerds says that employing an ISO can make processing more expensive and less controllable. Inconsistent sales messaging – ISOs are independent, thus their messages may not always match a brand’s tone or approach completely. Variable performance – The quality of ISOs differs greatly. Clearly Payments notes that non‑bank ISOs range from highly capable providers to those that do not represent the industry well; merchants must carefully evaluate potential partners. Contract complexity – There are long contracts, significant upfront fees, and yearly dues for registration and sponsorship agreements. Merchants need to read the agreements attentively to know what fees and duties they have. Legal and Compliance Considerations Before partnering with an ISO, companies must address several legal and compliance requirements: Registration requirements – Entities that solicit merchant accounts must register with card networks and obtain sponsorship from an acquiring bank. Registration involves due diligence, financial vetting and annual fees. Contractual obligations – ISOs sign agreements with both the sponsoring bank and merchants. These contracts outline responsibilities, liability, pricing and service levels. Visa’s program requires due diligence reviews of the agent’s business model, financial condition and security compliance. Compensation disclosure rules – Merchants should look for ISOs with transparent pricing and clear disclosure of fees. eFlow advises evaluating transparency in pricing and avoiding complex fee structures. Non‑compete agreements – ISO agreements may include non‑compete clauses that restrict the agent from representing competing processors. Businesses should review these clauses to ensure they align with growth plans. Territory protection clauses – Contracts often specify geographic territories to prevent channel conflict. Clear definitions help avoid disputes between an ISO and the provider or other partners. When Should a Company Use an Independent Sales Organization? Partnering with an ISO is advantageous in many situations: Entering new geographic markets – ISOs provide regional expertise and sponsor relationships, helping companies expand into new markets quickly. Expanding distribution quickly – For startups or companies launching new products, ISOs accelerate merchant onboarding and enable fast go‑to‑market. Limited internal sales infrastructure – Small businesses and startups often lack the resources to manage payment processing. ISOs handle onboarding, support and compliance. High customer acquisition costs – Using an ISO can reduce costs by leveraging their established sales networks and commission‑based model. Niche industry targeting – Industries with specialized needs, such as medical, telecom or e‑commerce, benefit from ISOs that understand sector‑specific requirements. When Should You Not Use an ISO? There are times when a direct relationship with a payment processor or an in-house team is better than using an ISO, even if ISOs have their advantages. Need full brand control – Companies that want full control over pricing and the customer experience may want to work directly with acquirers or create their own PayFac. Highly complex enterprise sales requiring internal oversight – Companies that sell large enterprise solutions may need sales, product, and support teams to work closely together. A direct in-house team can help with this. Long strategic sales cycles – A dedicated team that knows the product inside and out may be better than an ISO that focuses on getting new merchants set up when deals need months of consulting and customisation. Heavy product customization – If payment solutions need specialized integrations or special pricing models, it could be better to engage directly with a processor or establish an internal team. How to Choose the Right Independent Sales Organization Choosing an ISO is a very important choice. Use the following criteria to judge potential partners. Industry Expertise Find an ISO that has worked in your field before. They should know what the rules are, what kinds of transactions are popular, and what chargeback problems are common. Priority Commerce says that ISOs customize their services to meet the demands of merchants, e-commerce businesses, and service providers. A vertical spec Compliance Knowledge Pick a partner who puts compliance first. The ISO needs to be registered with the major card networks and follow PCI DSS rules. Visa’s Third Party Agent program demands agents to do their homework on their business models and security measures. Find information about their training programs and certifications. Proven Sales Track Record Look at the ISO’s portfolio. How many merchants have they signed up? How many of them stay? Clearly Payments says that non-bank ISOs have quite different skills, so it’s important to look at their reputation and read reviews from past clients. A history of getting merchants in your field is a good sign. Technology and Reporting Capabilities Many modern ISOs offer their own gateways, mobile apps, or analytics tools. Check to see if the ISO offers real-time reporting, fraud management, and the ability to work with your current applications. Dashboards that are clear assist keep track of the number of transactions and the fees. Cultural Alignment Cultural compatibility is important because an ISO will represent your brand to merchants. Find partners who care about good customer service, honest sales, and open communication. Having the same philosophy makes sure that the message and quality are always the same. Compensation Transparency Make sure that the fee structures, residual splits, and termination provisions are all easy to understand. eFlow says to pick an ISO that is open about its prices and doesn’t have any hidden fees. Before you sign a contract, read it carefully. Independent Sales Organization vs Other Sales Models ISO vs Sales Agent An ISO is a recognized business that works directly with acquiring banks, spends money on registration and compliance, and can use its own brand. A sales agent, on the other hand, is a third-party contractor who provides ISO services but can’t sign merchants directly. Agents pay very little in fees and make money through commissions, but they have to work with an ISO or MSP and can’t set prices or keep merchant connections. ISOs can make more money through residuals and have more power, but they also have to follow more rules. ISO vs Sales Outsourcing When you outsource your sales, you hire another company to do some or all of your sales work. Outsourced teams can handle lead generation, demos, closing, and account management for a wide range of products, not simply payments. ISOs focus on selling payment processing and merchant services, but companies that provide sales outsourcing, like Sales Focus Inc., develop dedicated sales teams for B2B clients in many industries to make money and get new customers. Sales outsourcing partners take care of hiring, training, and managing employees, while ISOs focus on setting up and processing payments. ISO vs Distributor A distributor buys goods from producers and sells them to retailers or clients. They also take care of storage, shipping, and delivery. ISOs, on the other hand, don’t handle actual items or inventory. Instead, they sell financial services and software and focus on getting and helping merchants. Distributors usually make money by selling goods at a discount, while ISOs make money by processing payments and getting commissions. ISO vs Affiliate Marketing Affiliate marketers advertise goods or services online and get paid when people click on their links or make a purchase. They don’t do onboarding, underwriting, or customer service. ISOs, on the other hand, take on additional responsibility by helping merchants fill out applications, teaching them on payment technology, and keeping in touch with them. Affiliates have very few rules to follow, whereas ISOs have to register with card networks and follow very severe security rules. Final Takeaways Independent sales organizations are very important to the payments environment. They came about to help firms, especially small or high-risk ones, get merchant accounts when banks were hesitant to do so. ISOs can sell payment processing services, add payments to SaaS platforms, and give merchants customized solutions and ongoing support. Companies profit from fast market growth, lower costs, professional advice, and pricing that is based on performance. At the same time, businesses need to think about the risks that come with things like having to follow rules and having less control over the brand experience. Sales Focus Inc. knows how important it is to find the appropriate partners to help your business grow. Our teams have been doing outsourced sales for more than 28 years. We have brought in more than $1.2 billion in revenue for clients, raised their income by an average of 37%, and employed and educated more than 12,500 sales agents. We can assist you figure out if you should create your own ISO, work with a reputable provider, or hire someone else to handle all of your sales. Get in touch with our team to talk about personalized sales methods that can help your business expand over time.
