The European Banking Authority (EBA) has released the draft methodology and templates for the 2027 EU-wide banking stress test. This marks a significant change in financial supervision by adding climate risk assessment to the exercise for the first time. This change reflects the growing regulatory focus on the financial effects of climate change and how it could impact the stability of the European banking sector. Climate risk, EU banking stress test, EBA, sustainable finance, and ESG risks are becoming important factors in banking oversight across the European Union.

While climate-related risks will be included through a dedicated assessment module, the EBA made it clear that the results from this module will not affect the main outcomes of the 2027 stress test. Still, the regulator sees this as an important step in integrating climate considerations into banking supervision and improving the sector’s readiness for environmental and economic shocks.

Strengthening Financial System Resilience

The EBA coordinates EU-wide stress tests to see how banks would perform in tough economic and market conditions. This exercise gives regulators, financial institutions, and market participants a common framework to evaluate the resilience of banks across the European Union and to compare their ability to withstand severe shocks.

Stress tests are a key supervisory tool that checks whether banks have enough capital to absorb losses during financial instability. By bringing climate-related risks into the assessment framework, the EBA aims to enhance understanding of how environmental factors could impact banks’ balance sheets and overall financial stability.

This development follows broader efforts by European financial regulators to include environmental, social, and governance considerations in their supervisory practices. Recently, the EBA and other European supervisory authorities issued guidelines on incorporating ESG factors, particularly those related to climate and environmental risks, into stress testing for banks and insurance companies.

Dedicated Climate Module Introduced

In the proposed framework, participating institutions must assess the impact of selected climate-related transition and physical risks over a three-year horizon. Banks will use climate scenarios alongside the adverse macro-financial scenario already applied in the EU-wide stress test.

The climate module is designed to capture transition risks from policy and economic changes related to decarbonization efforts, as well as physical risks tied to extreme weather events. The assessment aims to give regulators insights into potential weaknesses within the banking system while helping institutions improve their risk management practices.

According to the EBA, this dedicated module takes a gradual approach to integrating climate risk into supervisory exercises. By initially separating climate assessments from the main stress test results, supervisors can gain experience and refine their methods before looking at deeper integration in future tests.

Transition Risk Scenarios Focus on Policy Shocks

A key part of the new climate module is the assessment of transition risks. These risks arise from changes in climate policies, technological advancements, and market behaviors as economies move towards lower-carbon models.

The EBA's transition risk scenario assumes an abrupt and strict tightening of climate policies. Such a shift could lead to rapid capital reallocation among industries, major changes in energy markets, and wider economic disruptions. The scenario aims to evaluate how banks' exposures might be impacted by these conditions.

Several specific shocks will be included in the analysis, such as higher carbon prices, changes in greenhouse gas emissions pathways, and rising energy prices due to stricter climate policies. The framework will also assess gross value added (GVA) shocks to reflect the economic impact on individual sectors that could face higher costs or drop in competitiveness during the transition to a low-carbon economy.

These measures aim to help regulators understand how sudden policy changes could influence borrowers, industries, and ultimately the financial institutions that support them.

Flood Risk Scenario Targets Physical Climate Threats

Alongside transition risks, the climate module also introduces a physical risk assessment focused on river flooding events. The EBA's scenario explores the potential financial and economic impacts of simultaneous riverine floods occurring across member states in the European Economic Area (EEA).

Flooding is one of the most serious climate-related threats facing Europe, with growing worries about the frequency and intensity of extreme weather events. This scenario seeks to estimate how widespread flood damage could affect businesses, households, and property values, which may lead to higher credit losses for banks.

By modeling a major flood event, regulators aim to assess the banking sector’s exposure to climate-related physical risks and identify where resilience measures may need to be strengthened.

Focus on Corporate and Real Estate Exposures

The climate module will mainly evaluate banks’ exposures to non-financial corporations and real estate assets. The EBA noted that these areas were chosen because they are key channels through which both transition and physical climate risks can impact the financial sector.

Corporate borrowers in carbon-heavy industries may experience rising operating costs or lower profits under stricter climate policies, while real estate assets could be at risk of physical damage from flooding and other climate-related events.

This focused approach aims to direct supervisory efforts to areas where climate risks are most significant and where potential impacts on bank balance sheets could be large.

Simplified Reporting Requirements

Along with the introduction of climate assessments, the EBA proposed considerable simplifications to the overall stress testing process. The new methodology includes a 55% reduction in data points required from participating institutions. This aims to lessen the reporting burden while keeping the exercise effective.

The regulator has started a consultation on the proposed methodology and templates before finalizing the framework. The 2027 EU-wide stress test is expected to include 63 banks, which represent about 75% of the European Union’s banking sector.

Including climate risks in the stress testing framework emphasizes the growing recognition among regulators that environmental challenges can create real financial risks. Although the climate module will initially stay separate from the main stress test results, its introduction indicates a broader shift towards incorporating climate considerations into the core framework of financial supervision across Europe.