Authors: Hilary Nichols, Musa Kacheche
Area Covered: Global
Date: June 2nd, 2026
Where SME Banking Strategies Break Down, and How to Strengthen the Foundation
The SME segment is one of the most discussed growth opportunities in emerging markets for commercial banking, and yet one of the most consistently underserved. The global financing gap for MSMEs roughly stands at USD 5.7 trillion globally according to the International Finance Corporation. At the same time, the commercial case for serving SMEs is well established. McKinsey estimates that the segment already generates close to USD 850 billion in annual banking revenue globally, highlighting both the scale of opportunity and cost of inaction. What is less well understood is why so many institutions that set out to capture this opportunity end up with strategies that stall or never reach scale. Working with banks across emerging markets in Africa, Latin America, and Asia, ConsumerCentriX has traced the breakdown to the foundational work that should happen before a bank launches a pilot.
Where Banks Actually Struggle
The breakdown often sits in the early-stage diagnostic phase where key activities such as assessing the market, sizing the opportunity and building a comprehensive business case get compressed or skipped. In most cases, this happens due to internal pressure to move quickly, board commitments to launch new propositions, and the assumption that the SME opportunity is self-evident, moving banks toward piloting before the foundational analysis is complete.
- Market assessments rely on incomplete or anecdotal data.
- Market sizing gets approximated rather than modelled.
- Business cases sit on assumptions that have never been stress-tested against the institution’s own cost base, risk appetite, or operating environment.
These shortcuts surface much later. Pilots launch without a clear view of which segments offer the strongest returns, and resource decisions are made without credible projections of break-even timelines. The internal alignment needed to sustain an SME strategy through difficult quarters fails to materialize, because the leadership team was never given the evidence base to commit with conviction.
Why the Diagnostic Phase Matters More Than It Appears
An effective SME banking strategy is an institutional shift – not a product launch. It touches credit policy, branch operations, sales incentives, technology investments, and often the bank’s broader risk culture. This kind of change requires the leadership team to be aligned around a shared understanding of the opportunity, the trade-offs, and the timeline. This is fundamentally a change management challenge, and change management runs on evidence.
The INVEST toolkit was built on that kind of evidence. After reviewing more than 20 TA-supported SME banking programs, we identified the common patterns that distinguished high-performing programs from those that struggled to scale. Those patterns became the basis for the INVEST process and the diagnostic tools that sit within it. The institutions that build durable SME franchises tend to share a particular starting posture, and the toolkit is designed to help others adopt it: treating the early diagnostic phase as the most important stage of the work, rather than the preliminary one.
Introducing the INVEST Toolkit
The INVEST toolkit, structured around the INVEST process, was developed by ConsumerCentriX, Dalberg, and GSG Impact with support from the Argidius Foundation to address this gap. It is a structured process supported by a set of practical tools, including a shared core that serves both financial institutions and the technical assistance funders, with additional tools tailored to each audience’s specific needs. The tools are used across the SME banking journey, from initial market assessment through pilot, refinement, and roll-out. The approach has already informed SME banking programs across Africa, Asia, and Latin America, mobilizing millions of dollars in SME finance.
The tools are plug-and-play, Excel-based diagnostics that practitioners inside a bank can apply directly. The full toolkit spans the entire SME banking process, but three of its tools are built specifically to strengthen the early diagnostic phase: the Market Assessment Tool, the Market Sizing Tool, and the Business Case Tool.
How the Toolkit Addresses the Early-Stage Gaps
Three questions sit at the heart of the diagnostic phase, and the toolkit provides a dedicated tool for each. The Market Assessment Tool gauges how supportive or ripe the market is. The Market Sizing Tool quantifies how large the SME market is. The Business Case Tool tests whether the institution can profitably capture the opportunity. Together they answer the questions that most often go under-examined when banks rush into piloting: what gaps need to be addressed in the greater environment, what is the overall opportunity for SME banking, and which SME segment is attractive from a scale and return on investment (ROI) perspective.
The diagnostic phase is the foundation. The remaining tools in the INVEST toolkit support what comes after: evaluating the bank’s own capabilities, segmenting SME clients to tailor the value proposition, and tracking performance through roll-out. Each of those steps depends on the work done at the start. A pilot launched without a clear view of the market, the segment, or the business case will struggle to find its footing later, and the rest of the toolkit will be working with a weaker foundation than it should.
Used in sequence, these three tools give a bank’s leadership team a shared, evidence-based view of the opportunity before any investment commitment is made. That shared view enables the internal alignment, leadership buy-in, and data-driven decision-making that SME banking transformations require.
Getting the Foundation Right
Banks that have built durable SME businesses did not get there because they had better products or better technology in the early years. They got there because they invested the time, at the outset, to understand the market they were entering, to size it with discipline, and to build a business case their own leadership could defend. Everything that came afterwards was easier because the foundation was solid. For institutions setting out to build or strengthen an SME proposition, the most useful question is never “what product should we launch?” It is “how well do we actually understand this market, and how confident are we in the case we are making to ourselves?” Where the answer is incomplete, the rest of the strategy rests on uncertain ground. Banks looking to strengthen the early-stage foundations of their SME strategy can explore the INVEST toolkit, available online. It includes the Market Assessment, Market Sizing, and Business Case tools alongside the broader set of diagnostics that support the full SME banking journey, and is designed to support the kind of structured, evidence-based decision-making that moves SME ambitions from intent into outcomes.
Visit: INVEST Process and Toolkit
