BSI Publishes New Net-Zero Transition Framework for Financial Institutions

SBTi introduces dedicated standard for financial institutions

The Science Based Targets initiative published its Financial Institutions Net-Zero Standard in July 2025. This framework gives banks, asset managers, insurers, and capital market firms a formal process for setting science-based targets aligned with a 2050 net-zero pathway. It marks the first time SBTi has released a standard designed specifically for financial institutions, covering their full range of portfolio and financing activities.

The standard applies to any institution earning 5% or more of revenue from lending, investing, underwriting, or capital market operations. Consequently, it captures most mainstream financial firms operating in the UK and across global markets. SBTi developed the framework through consultation with the sector, including a pilot programme involving 30 financial institutions. It sits alongside the existing Corporate Net-Zero Standard but addresses the unique challenges of measuring and managing financed emissions.

For financial institutions that publicly committed before publication, the submission deadline is July 2027. This gives firms 24 months to prepare targets and supporting documentation. Until then, institutions can continue using the earlier Near-Term Criteria or begin working under the new standard. The choice reflects SBTi’s recognition that many firms are already partway through existing target cycles.

Portfolio alignment and sector-based targeting options

The standard offers two main pathways for target setting. Financial institutions can choose portfolio climate alignment, which measures the temperature trajectory of their entire portfolio. Alternatively, they can set sector-based targets for high-emitting industries such as energy, transport, and heavy manufacturing. Both approaches require firms to demonstrate progress toward net zero across their financed activities, but the mechanics differ.

Portfolio alignment tracks whether the emissions profile of a firm’s lending and investment book is consistent with limiting global warming to 1.5°C. This approach suits institutions with diversified portfolios where sector-specific data may be incomplete. Sector targeting, meanwhile, focuses on reducing exposure to carbon-intensive industries through measurable thresholds. It works well for institutions with concentrated exposures or specialist lending practices.

Regardless of pathway, the standard requires both near-term and long-term targets. Near-term goals typically cover five to ten years. Long-term commitments must reach net zero by 2050 at the latest. This dual structure prevents institutions from making distant pledges without intermediate accountability. It also aligns with the Paris Agreement’s temperature goals and the UK’s own legislated net-zero timeline.

Immediate restrictions on oil and gas expansion

One of the standard’s most significant requirements concerns fossil fuel financing. SBTi mandates that financial institutions phase out new general-purpose financing or insurance for oil and gas expansion. This must happen immediately or by 2030 at the latest. The rule applies to upstream exploration, new field development, and infrastructure built to increase extraction capacity.

General-purpose financing refers to corporate loans, bonds, and underwriting that support a company’s overall operations rather than a specific project. In practice, this means banks cannot provide revolving credit facilities or general corporate bonds to companies actively expanding oil and gas production. The restriction does not apply to project finance for renewable energy or transition activities by fossil fuel companies, provided those activities align with net-zero pathways.

The 2030 deadline offers flexibility for institutions with existing commitments or complex syndicated loan arrangements. However, it sets a clear end date for new business that conflicts with the Paris goals. For UK banks and insurers with significant energy sector exposure, this requirement will demand careful review of client relationships and lending policies. It may also affect competitiveness if implemented unevenly across markets.

Deforestation risk disclosure and assessment requirements

The standard includes expectations around deforestation-related financial exposure. Institutions must assess and publicly disclose this exposure by 2030. The requirement reflects growing recognition that deforestation contributes significantly to global emissions, particularly in sectors such as agriculture, forestry, and land development. It also acknowledges that financial institutions indirectly enable deforestation through lending to high-risk industries.

Assessment involves identifying portfolio exposures to commodities and regions associated with deforestation risk. This includes soy, palm oil, cattle, timber, and cocoa supply chains. Institutions must then quantify the proportion of their lending or investment linked to these activities. Public disclosure ensures transparency and allows stakeholders to evaluate whether firms are managing nature-related risks effectively.

For UK financial institutions, this requirement connects with emerging regulatory expectations around nature and biodiversity. The Taskforce on Nature-related Financial Disclosures is developing similar frameworks. Therefore, institutions that begin assessing deforestation exposure now will be better prepared for future mandatory reporting. The 2030 deadline provides time to build data systems and engage with borrowers on land-use practices.

Buildings sector financing and retrofit priorities

The standard encourages increased financing for building retrofit and decarbonization projects. It also discourages new financial activity for buildings that are not zero-carbon ready. This reflects the fact that buildings account for a significant share of UK emissions, particularly through heating systems and poor insulation. Financial institutions play a key role in determining which building projects receive funding and on what terms.

Zero-carbon ready typically means buildings designed to operate without fossil fuel heating and with high energy efficiency standards. In the UK context, this aligns with the Future Homes Standard and similar policy initiatives. The SBTi framework pushes institutions to direct capital toward existing building stock improvements rather than new construction that locks in high emissions. Retrofit financing might include loans for heat pump installation, insulation upgrades, or commercial property energy efficiency programmes.

The practical effect is that mortgage lenders, commercial property investors, and construction finance teams will need to adjust underwriting criteria. Buildings with poor energy performance certificates may face higher borrowing costs or restricted access to finance. Conversely, retrofit projects could become more attractive as institutions seek to demonstrate progress under the standard. This shift has implications for property developers, landlords, and homeowners across the UK.

Portfolio assessment and progress reporting expectations

SBTi requires institutions to conduct regular portfolio assessments and report progress publicly. This means measuring financed emissions, tracking alignment with target pathways, and disclosing results in a standardized format. The assessment must cover the institution’s full scope of financial activities, including lending, equity and debt investments, underwriting, and capital market operations.

Financed emissions are calculated by attributing a portion of a borrower’s or investee’s emissions to the financial institution based on the size of its exposure. For example, if a bank provides 10% of a company’s total debt, it reports 10% of that company’s Scope 1 and Scope 2 emissions as financed emissions. The methodology follows the Partnership for Carbon Accounting Financials guidance, which is widely used across the sector.

Progress reporting must occur at regular intervals throughout the target period. Institutions cannot simply set a target and remain silent until the deadline. Instead, they must demonstrate year-on-year movement toward their goals. This transparency helps investors, regulators, and civil society monitor whether commitments translate into genuine emissions reductions. It also creates accountability that discourages greenwashing.

Target cycles and recalibration at expiry

The standard establishes a target cycle framework where institutions set goals for defined periods, then recalibrate at expiry. Near-term targets typically run for five to ten years. When they expire, institutions must set new targets that reflect updated climate science and their actual progress to date. This prevents firms from coasting after achieving initial goals or gaming the system by setting unambitious baselines.

Recalibration requires institutions to reassess their portfolio’s emissions profile and adjust targets accordingly. If an institution exceeded its initial target, the next cycle must be more ambitious. If it fell short, the new target must account for the shortfall and maintain alignment with the long-term net-zero pathway. SBTi validation ensures that revised targets remain science-based and credible.

This structure mirrors the Paris Agreement’s five-year review cycle for national climate commitments. It acknowledges that climate science evolves and that economic conditions change. For financial institutions, it means that sustainability and risk teams will need ongoing engagement with target setting rather than treating it as a one-time exercise. The administrative burden is higher, but the credibility gain is significant.

What UK financial institutions should consider

• The standard applies to any institution earning 5% or more of revenue from covered activities, capturing most mainstream banks, insurers, and asset managers operating in the UK.
• Financial institutions can choose between portfolio alignment and sector-based targeting, but both pathways require near-term and long-term goals aligned with net zero by 2050.
• New general-purpose financing or insurance for oil and gas expansion must be phased out immediately or by 2030 at the latest under the standard’s fossil fuel requirements.
• Institutions must assess and publicly disclose deforestation-related financial exposure by 2030, covering commodities and regions associated with forest loss.
• The framework encourages more financing for building retrofit projects and discourages support for new buildings that are not zero-carbon ready.
• Firms that publicly committed before July 2025 have until July 2027 to submit targets, while others can continue using the earlier Near-Term Criteria during this period.
• Regular portfolio assessment and progress reporting are mandatory, preventing institutions from setting targets without demonstrating measurable year-on-year movement.

Commercial and compliance implications for UK firms

The standard creates both compliance obligations and commercial opportunities. On the compliance side, institutions that commit to SBTi validation must meet detailed technical requirements around data collection, emissions accounting, and public disclosure. This demands investment in systems and expertise. Many firms will need to upgrade carbon accounting capabilities and strengthen sustainability reporting processes.

The fossil fuel financing restrictions will affect institutions with energy sector exposure. Banks that provide revolving credit facilities or underwriting services to oil and gas companies must review existing arrangements and adjust new business criteria. This could mean declining certain mandates or renegotiating terms to exclude expansion activities. The competitive impact depends on how consistently peers adopt the standard across markets.

Deforestation risk assessment requires institutions to map exposures across agriculture, forestry, and land-use sectors. For retail banks, this might involve reviewing mortgage lending in areas with development pressure. For corporate lenders, it means assessing supply chain risks in sectors such as food production and timber. The data requirements are substantial, particularly for institutions without existing ESG screening processes.

On the opportunity side, the shift toward retrofit financing opens new markets. Residential mortgage providers could develop green loan products tied to energy performance improvements. Commercial property lenders might create preferential rates for buildings meeting zero-carbon standards. Insurance firms could offer favorable terms for properties with lower climate risk profiles. These products align with the standard’s goals while meeting growing customer demand for sustainable finance options.

Supply chain implications also matter. The standard affects not just direct lending but also trade finance, supply chain finance, and corporate banking relationships. A manufacturer seeking working capital might face questions about its own suppliers’ deforestation risks or energy transition plans. This extends sustainability expectations deeper into the economy, potentially affecting SMEs that rely on bank finance for day-to-day operations.

For institutions already working toward carbon reporting compliance under PPN 06/21, the SBTi standard represents an additional layer of rigor. Public sector suppliers must demonstrate carbon reduction plans to qualify for certain contracts. Financial institutions supporting those suppliers will need to ensure their own climate commitments are credible and science-based. This creates alignment between procurement policy and financial sector regulation.

Context within broader sustainable finance developments

The SBTi standard arrives alongside other regulatory and market initiatives shaping sustainable finance. The UK government has consulted on mandatory transition plan disclosure for listed companies and financial institutions. The Financial Conduct Authority is developing sustainability disclosure requirements for asset managers. The Prudential Regulation Authority expects banks and insurers to integrate climate risk into their governance and strategy.

The Glasgow Financial Alliance for Net Zero has published guidance on credible transition plans for financial institutions. This guidance outlines key components such as governance, strategy, metrics, and targets. It emphasizes that transition plans must be time-bound, actionable, and subject to regular review. The SBTi standard provides a technical framework that operationalizes many of these principles.

CDP describes a credible climate transition plan as a time-bound action plan showing how an organization will pivot its assets, activities, and resources to deliver its strategy. This definition applies across sectors but is particularly relevant for financial institutions given the scale of their influence. Banks, insurers, and asset managers allocate capital across the economy. Therefore, their transition plans shape investment flows, pricing signals, and risk management practices throughout the real economy.

The shift from broad climate commitments to measurable implementation reflects growing stakeholder scrutiny. Investors want evidence that climate pledges translate into portfolio changes. Regulators are moving toward mandatory disclosure to prevent greenwashing. Civil society groups track which institutions finance fossil fuel expansion despite net-zero commitments. The SBTi standard responds to this environment by establishing clear, verifiable criteria for what counts as science-based.

For businesses seeking support with ESG compliance and carbon reporting services, understanding the financial sector’s own climate commitments provides useful context. As lenders and investors adopt stricter criteria, borrowers and investees will face higher expectations. SMEs that can demonstrate credible decarbonization plans may gain better access to finance. Those that cannot may face higher costs or restricted availability.

Where to find detailed technical guidance

The Science Based Targets initiative publishes the full Financial Institutions Net-Zero Standard on its website, including technical annexes and calculation methodologies. Institutions considering adoption should review the complete documentation before committing. The SBTi financial institutions page provides access to the standard, guidance documents, and submission processes.

The Partnership for Carbon Accounting Financials offers detailed guidance on financed emissions accounting. This includes sector-specific methodologies and data quality standards. UK institutions can access these resources through the PCAF website, which also hosts case studies and implementation tools.

The Glasgow Financial Alliance for Net Zero has published frameworks on transition plan expectations and portfolio alignment. These complement the SBTi standard by addressing governance, stakeholder engagement, and scenario analysis. Resources are available through the GFANZ website, including sector-specific working group outputs.

UK financial regulators provide climate-related guidance through their supervisory statements and discussion papers. The Prudential Regulation Authority’s supervisory statement on climate risk and the Financial Conduct Authority’s sustainability disclosure requirements offer regulatory context. These are available on the respective regulator websites alongside consultation responses and policy updates.

For broader context on sustainable finance policy, the UK government’s Green Finance Strategy outlines policy priorities and regulatory developments. The Department for Energy Security and Net Zero also publishes updates on transition planning expectations and net-zero implementation across sectors. These sources help institutions understand how the SBTi standard fits within the wider policy landscape affecting financial services and their clients.