Traditional underwriting rejects viable merchants. The shift to complexity-aware underwriting creates a competitive advantage for payment processors that can evaluate business models, not just risk codes. ISOs and investors should watch approval rates and vertical expertise.
The underwriting playbook that worked for the last decade is becoming a liability. Payment providers that still rely on rigid merchant classification and fixed risk frameworks are systematically rejecting businesses that generate real revenue. The shift toward complexity-aware underwriting is not a soft trend. It is a structural change in how payment processors, independent sales organizations (ISOs), and their investors should evaluate portfolio risk and opportunity.
Barry Prentice, vice president of risk and underwriting at Maverick Payments, told PYMNTS that the old model focused on limiting exposure rather than understanding it. Modern businesses are more diverse, and the frameworks built for a simpler marketplace now create a bottleneck. The consequence is that viable merchants get declined before their operating model is fully evaluated.
For traders and investors tracking payment processors, this is not a background story. It is a risk event that changes the competitive landscape. The providers that can underwrite complexity will capture a growing share of merchant volume. Those that cannot will lose market share to more flexible competitors.
The event is not a single earnings miss or regulatory filing. It is the accumulation of merchant business models that no longer fit standard industry codes. Subscription services, multi-channel retailers, money services businesses, and online pharmacies all operate in regulatory gray zones. Traditional underwriting treats these as high-risk by default. Modern underwriting treats them as opportunities that require deeper evaluation.
Prentice noted that many of the challenges in sectors like money services and online pharmacies stem from regulatory complexity, not elevated financial risk. Understanding the rules governing those businesses is more important than relying on broad assumptions. That distinction matters because it shifts the underwriting function from a gatekeeping role to a value-creation role.
Traditional underwriting uses a checklist: merchant category code, chargeback history, processing volume, and credit score. If a merchant falls outside predefined thresholds, the application is declined. The process is fast. It is also blunt.
Modern underwriting adds a second layer: business model analysis. The underwriter examines how revenue is generated, how regulatory obligations are managed, and what operational controls exist. This layer takes more time and requires vertical expertise. It reduces false negatives. A merchant that would have been rejected under the old model can be approved with appropriate monitoring.
For ISOs, the difference is direct. An ISO that works with a flexible underwriting partner can accept merchants that competitors cannot. That expands the addressable market without increasing actual loss rates.
ISOs operate on thin margins. Their revenue depends on processing volume and the spread between wholesale and retail rates. Every declined merchant is lost recurring revenue. When underwriting is too conservative, ISOs leave money on the table. When it is too loose, they absorb chargebacks and regulatory fines.
The shift toward complexity-aware underwriting changes the risk-reward calculation. ISOs that partner with providers capable of evaluating high-complexity merchants can pursue a wider range of opportunities without taking on excessive risk. The key is that the underwriting provider must have experience across multiple risk categories and consistent processes across departments.
Prentice emphasized that managing portfolios containing high-risk, moderate-risk, and low-risk merchants requires both expertise and infrastructure. Experienced underwriting teams are better positioned to distinguish between genuinely problematic businesses and those that simply require additional review.
Historically, ISOs maintained separate relationships for different merchant categories. High-risk merchants went to one processor, low-risk to another. That created operational friction and inconsistent pricing.
A single underwriting model that can evaluate the full spectrum of risk levels simplifies the ISO's workflow. Prentice called this a huge benefit: the ability to submit all merchants to one full-service payment provider. For the ISO, it means fewer vendor relationships, faster onboarding, and more predictable approval outcomes.
The shift is already underway. Its impact on public payment processors will become visible over the next two to four quarters. The catalyst is merchant demand. As more businesses adopt subscription models, multi-channel sales, or regulated verticals, the volume of merchants that do not fit standard categories will grow. Processors that cannot underwrite them will see their addressable market shrink.
Publicly traded payment processors are the primary affected group. Companies like Fiserv (FI), Global Payments (GPN), Fidelity National Information Services (FIS), and Square (SQ) all have ISO distribution channels. Their underwriting philosophy directly affects their ability to retain and grow merchant volume.
Maverick Payments is private. Its approach signals where the market is heading. If Maverick gains ISO market share, public processors will face pressure to adapt. That pressure could lead to acquisitions of underwriting technology firms or partnerships with specialized risk assessment providers.
The thesis is that complexity-aware underwriting creates a competitive advantage that translates into market share gains and lower loss rates. Confirming signals include:
The thesis fails if complexity-aware underwriting leads to higher losses or if the market does not reward it. Breaking signals include:
Underwriting is not a back-office function. It is a competitive weapon. The providers that learn to love merchant complexity will capture the next wave of payment volume. The ones that cling to rigid frameworks will watch their addressable market shrink.
For ISOs, the decision is simpler: partner with a provider that can handle the full spectrum, or maintain multiple relationships and accept the friction. The smart money is already consolidating toward the single-operating-model approach.
Prentice summed it up: the opportunity to submit a full spectrum of risk levels to one full-service payment provider is a huge benefit. That benefit will compound as merchant complexity increases. The question is which public processors will be able to deliver it.
Prepared with AlphaScala research tooling and grounded in primary market data: live prices, fundamentals, SEC filings, hedge-fund holdings, and insider activity. Each story is checked against AlphaScala publishing rules before release. Educational coverage, not personalized advice.