Why smart SMB credit underwriting matters for financial institution growth

Outdated small and medium business (SMB) credit underwriting workflows are constraining portfolio growth at a critical moment for the SMB segment: financial institutions reject SMB applications 5x more than enterprise applications.¹

Many financial institutions may want to consider developing new ways to serve this segment with more precision. SMB relationships can generate 5–10x more revenue than consumer banking relationships, and credit is often the anchor product that drives deeper engagement, higher lifetime value and broader adoption across payments, treasury and value-added services.²

Looking at SMB credit underwriting as primarily a risk management function can miss the critical impact it may offer as a strategic growth lever.

SMB expectations are also changing. Many business owners increasingly value speed, flexibility and practical guidance when seeking credit, and they may be more willing to consider non-traditional providers when traditional lending experiences feel slow or difficult to navigate.

At the same time, modern SMB underwriting is also undergoing a structural shift. Traditional approaches built around collateral, historical financial statements and static credit scores are increasingly being complemented by cash flow-led assessments, continuous monitoring and multi-signal risk models that provide a more dynamic view of business health. For many lenders, the opportunity is not simply to automate existing processes, but to make more informed decisions using a broader set of performance indicators throughout the customer lifecycle.

Acting on this opportunity may not require issuers and fintechs to relax their credit policies or take on more risk. The likely goal for many financial institutions is to improve how they identify potentially viable businesses, right-size credit lines and reduce manual friction for internal teams and SMB leaders — so they can approve more of the right applicants and grow SMB portfolios while maintaining strong risk discipline.

Legacy credit underwriting workflows can limit SMB portfolio growth

Traditional SMB underwriting still depends heavily on static or backward-looking proxies: personal credit scores, credit bureau data, tax returns, financial statements, collateral and time in business.

These inputs remain useful, but they often do not provide enough context to evaluate how modern SMBs operate or assess near real-time business health. Static financial snapshots may miss important indicators such as cash-flow volatility, transaction trends, seasonal revenue patterns, peer benchmarking insights and changing customer demand that can materially influence risk outcomes.

A thin-file SMB is not automatically a weak SMB.

A seasonal business is not necessarily distressed. A digital seller may have strong transaction activity without a long conventional borrowing history. A newer business may lack traditional documentation but show healthy payment flows, consistent demand and improving cash behavior.

Many traditional underwriting models — often designed to evaluate larger, more established corporate entities — may not adequately distinguish those patterns. As a result, lenders can underestimate otherwise viable businesses, assign conservative credit limits or introduce unnecessary manual review steps.

Lenders may see the symptoms in their own portfolio metrics today:

• Strong application demand but conservative approval rates
• Low credit limits
• High utilization, signaling unmet credit need
• Slow, manual application workflows that reduce conversion
• Active-card growth that lags broader customer demand

SMBs face a significant financing gap globally, with shortfalls in regions like East Asia & Pacific ($2.4T, 10% of GDP), LAC ($650B, 7% of GDP) and Sub-Saharan Africa ($330B, 13% of GDP).³ Among surveyed SMBs in the U.S., 41% had credit limits below $50K, 21% used more than 75% of their available credit line and 29% paid credit balances multiple times per month.⁴

For many lenders, these patterns likely suggest a mismatch between perceived risk, assigned credit capacity and actual business demand.

The opportunity for financial institutions is clear: use better and broader signals, continuous lifecycle-based assessment and dynamic adjustments to close the gap between perceived risk, approved credit capacity and actual SMB demand.

What to look for in an SMB credit underwriting partner

Financial institutions may want to consider prioritizing SMB credit underwriting partners that can strengthen their existing underwriting workflows, rather than forcing a full replacement.

Potentially valuable partners may be able to offer some or all of the following capabilities:

• Augment existing scorecards and decision frameworks
• Incorporate traditional and alternative data sources
• Benchmark applicants against local and segment-level peers
• Support probability-of-default and confidence scoring
• Help evaluate previously declined applicants that may warrant additional review
• Support lifecycle-based assessment and ongoing portfolio monitoring
• Help identify approved accounts with credit lines that may not reflect observed business activity
• Improve automated decisioning and manual review efficiency
• Support dynamic line management informed by observed cashflow, transaction and repayment behavior insights
• Support embedded finance and virtual card use cases, including platform-based credit signals
• Provide explainable outputs, validation and governance support
• Adapt to regional data availability and regulatory expectations

The right partner can help lenders move faster without losing control.

Why Visa

Visa is deeply committed to supporting the long-term growth and resilience of small and medium-sized businesses globally — and the financial institutions that serve them.

Visa can help financial institutions strategize, plan and execute across their SMB journeys. Sitting at the intersection of payments, data, issuers, fintechs and SMB commerce, Visa is well-positioned to serve as a trusted facilitator for partnerships.
Visa can help financial institutions connect to relevant, vetted partners that can provide capabilities designed to support richer data signals and modern underwriting workflows in practical, governed ways. Through our position within the payments ecosystem, Visa can help financial institutions explore how transaction-based insights, sales trends, peer benchmarking and other business-performance signals may provide additional context for SMB credit strategies.

Visa offers scale, a deep understanding of SMB transaction behavior and powerful analytics capabilities that can help institutions better understand commercial activity patterns, portfolio trends and benchmarking insights across SMB segments. These insights can help support partner-enabled underwriting strategies, including more informed credit-line assignment, portfolio monitoring and lifecycle-based risk assessment, while maintaining lender ownership of underwriting decisions and risk policies.

For growth leaders, that combination of ecosystem perspective, partner access and implementation support can help create a clearer path toward more informed SMB credit strategies, deeper SMB relationships and stronger portfolio resilience.

Sharper insights, stronger growth

The financial institutions that best position themselves to win in SMB credit may not be the ones taking the most risk, but rather those that understand SMB credit risk more clearly.

Strong, data-rich underwriting workflows can help issuers and fintechs improve how they assess SMB risk — helping portfolio teams approve more of the right SMBs, assign appropriate credit limits, reduce manual friction and strengthen relationships across payments and financial services.