MAS Guidelines on Transition Planning for financial institutions (effective September 2027)

The date that matters

Issued: 5 March 2026. Effective: September 2027, after an 18-month transition period.

That effective date is the single most actionable fact here. Financial institutions have until September 2027 to build a transition planning process, and given that the process needs data, systems, governance and customer engagement, the runway is not generous.

A related circular for insurers, Circular ID 04/26, was also published on 5 March 2026.

What "transition planning" means here, and what it does not

This is framed as risk management, not a net-zero commitment. MAS is not requiring institutions to pledge net zero, nor to divest from particular sectors. It is requiring them to understand and manage two kinds of risk:

• Physical risk - damage from floods, heat, storms and sea-level rise affecting the institution, its customers and its assets
• Transition risk - losses from the shift to a lower-carbon economy: carbon pricing, regulation, technology change, shifting demand

MAS's Deputy Managing Director (Financial Supervision), Ms Ho Hern Shin, framed the guidelines as supporting institutions in building risk management capability against both, noting that engaging customers and investee companies in a risk-proportionate way builds resilience and supports broader financial stability.

The engagement principle

The most consequential expectation is that institutions should engage customers and investee companies to understand the climate risks they face and how they are managing them, so as to avoid indiscriminate withdrawal of credit, insurance coverage or investment.

The reasoning is worth spelling out, because it runs against intuition. If every bank in Singapore simply cut off high-emitting customers, three things would follow: the emissions would move to less scrupulous lenders rather than disappear; the transition would be disorderly, because the companies that most need capital to decarbonise are precisely the high-emitting ones; and the affected workers and communities would bear the cost. MAS's phrase for the alternative is a "just and orderly transition".

For a company on the receiving end, this is genuinely useful to know. Your bank is expected to ask you about your climate risk and your plans - and it is expected not to walk away because the answer is imperfect. Having a credible answer is therefore worth preparing.

Scope and structure

Three separate addenda, for banks, for insurers and for asset managers, reflecting their different business models. Each supplements the December 2020 Environmental Risk Management Guidelines rather than replacing them. MAS published separate responses to consultation feedback for each of the three sectors.

What the guidelines cover

• Governance and strategy
• Customer engagement (for banks)
• Portfolio management
• Forward-looking risk assessment tools, including scenario analysis
• Data, metrics and targets
• Implementation strategies
• Engagement and stewardship (for asset managers and insurers)

Risk-proportionate, not one-size-fits-all

Institutions should establish a transition planning process in a risk-proportionate manner, taking into account the risk profile of their business models and the local circumstances of their operations. A small fund manager with a domestic equity mandate is not expected to do what a global bank does.

MAS also expects institutions to keep pace as knowledge and capability improve - an acknowledgement that climate risk measurement methods are still developing, and that a plan built on 2026 methods will need revisiting.

What to do between now and September 2027

1. Map where climate risk actually enters your balance sheet - which portfolios, which customers, which geographies.
2. Decide what proportionate looks like for your institution and document that reasoning; MAS's expectation is explicitly scaled.
3. Start the customer conversations early. Engagement is the expectation that takes longest to build, because it depends on counterparties having answers.

Note on the consultation history

These guidelines followed a public consultation and industry engagement. A consultation launch date of 18 October 2023 is widely cited but could not be confirmed against a primary source during research, so it is not asserted here.