For some banks, stress testing is simply an annual exercise that often follows this pattern: run a scenario, summarize the results for leadership and file the materials. I’ve personally seen stress testing decks that come out once a year, usually right before a meeting, and then disappear until the next cycle — untouched, unquestioned and slightly out of date. This pattern made sense when stress testing served primarily as documentation, but today, regulators expect answers to a specific management question: What should the bank do differently because of what the test revealed?

The OCC’s 2026 Comptroller’s Handbook states that “all banks can benefit from applying stress testing to their loans and portfolios.” It also emphasizes asking plausible “what if” questions and incorporating the results into broader risk management processes. Increasingly, examiners and auditors are looking for a clearer connection between portfolio-level results and what’s actually happening within the loan portfolio. They want insight into where losses originate, which segments are most sensitive to changing conditions and how risk migrates as the environment deteriorates.

As a result, when presentations of portfolio-level stress testing results start to sound a little too high level, you might see an examiner, auditor or even someone on the institution’s own risk team lean forward and ask, “Okay … but which loans actually move first?” The question is less about the numbers themselves and more about whether the institution truly understands how its portfolio behaves under stress.

CECL reinforces this need. Stress testing and allowance work are different, but both rely on forward-looking assumptions about credit loss. If scenarios, segmentation, economic drivers and credit migration logic bear little relationship to the allowance methodology, management may struggle to explain the difference. Aligned assumptions create a consistent way to discuss risk across credit, finance, capital planning and accounting.

Use Stress Testing To Challenge Growth Plans

Growth targets should be tested before they become budgets. When a bank plans expansion by product, market or borrower segment, stress testing should show how those new loans would perform under varying degrees of economic pressure, not simply applying an average loss rate to higher volume.

Stress testing analyses can show whether a target adds earnings without materially changing risk, or whether it introduces exposure that deteriorates quickly. It can also clarify the effect on provision expenses, risk-weighted assets, liquidity needs and capital ratios, helping directors and management decide whether a target is achievable, needs guardrails or should be redirected.

Translate Stress Results into Capital Decisions

Interagency guidance for banking organizations above $10 billion says stress-test results should be “clear, actionable, well supported and inform decision-making.” For decision-makers at institutions of all sizes, understanding the relationship between projected losses, earnings and balance sheet growth should be simplified through stress testing.

A severe-scenario capital ratio is useful, but it’s also essential to see how much pressure comes from credit losses or weaker earnings, and whether planned asset growth would consume capital faster than retained earnings can replenish it. Recent FDIC data show why growth and capital should be evaluated together: Loan and lease balances rose 6.8% year over year in Q2 2026, while the industry’s Tier 1 risk-based capital ratio declined 17 basis points from the prior quarter to 13.75%.

Thresholds established by stress testing may influence dividend decisions, growth limits, contingency actions or the capital the bank wants to maintain above minimum requirements. Capital planning decisions should account for a range of outcomes and retain appropriate margins for uncertainty.

Make Concentrations Visible Before They Become Losses

Risk can build quietly, and portfolio totals can hide important differences. A commercial real estate stress scenario may show higher losses overall, but the management discussion should quickly move to the drivers: office versus owner-occupied properties, construction versus stabilized assets or higher loan-to-value loans versus stronger collateral positions.

The same principle applies to industry, geography, loan structure, borrower type and other relevant characteristics. Segment-level results help management distinguish a large concentration from one that is especially vulnerable, which might inform limits, monitoring frequency, portfolio mix and relationship-level action. A concentration report shows where exposure exists; stress testing can show how it may behave.

Bring Stress Results into Underwriting

Underwriting and pricing conversations should reflect how loans behave under pressure. If certain loan characteristics show early deterioration, credit leaders can evaluate whether standards, pricing, covenants, structure or monitoring requirements match the risk.

A stressed segment may still offer worthwhile opportunities. The bank should be able to explain when it is willing to lend and what protections it expects in return. Stress results can support differentiated decisions: tighter terms for higher-risk structures, stronger repayment analysis for vulnerable industries or pricing that better reflects expected loss and capital usage.

The connection should work in both directions, turning stress testing into a learning tool. Underwriting changes should be reflected in future stress tests so management can evaluate whether the revised standards improve outcomes over time.

The Bottom Line: Make The Analysis Actionable

An effective stress testing program can be both straightforward and intentional. Run scenarios relevant to the portfolio, at multiple severity levels, and update when economic conditions or portfolio composition change. Results should show which segments are most sensitive and, when appropriate, trace those results to loan-level characteristics.

Most importantly, management should be able to state what changed as a result of the analysis. Did the bank adjust a growth target, capital buffer, concentration limit, underwriting standard or monitoring plan? If the answer is no, the next question should be whether the stress test is providing enough decision-useful information. Effective stress testing demonstrates that the bank understands how its portfolio may behave when conditions do not align with the plan.