By This Hour Finance Desk
The European Central Bank has set 30 November 2026 as the intended start date for revised rules governing how the Eurosystem implements monetary policy, bringing into force a package that changes the credit-rating approach for many private-sector collateral assets and updates elements of its haircut schedule.
The amendments matter to banks and other counterparties that use eligible assets to secure credit operations with the Eurosystem. The rules do not announce a change in the stance of monetary policy. Instead, they alter parts of the operational framework through which monetary policy credit is conducted, including the assessment and valuation treatment of collateral.
In a 29 September announcement, the ECB described the package as the result of a regular review. It said the amendments are set out in Guidelines ECB/2026/26 and ECB/2026/27. Those texts amend the Eurosystem’s general monetary-policy framework guideline and its guideline on valuation haircuts, respectively.
The most conspicuous adjustment is the planned use of the second-best external credit rating for private-sector assets offered as collateral. That approach will be used both in deciding whether the relevant assets are eligible and in determining the haircuts applied to them. For euro-area public-sector assets, by contrast, the existing first-best-rating approach will continue.
A different ratings rule for private-sector collateral
Collateral is central to the Eurosystem’s credit operations because it is the asset pledged against those operations. Eligibility determines whether an asset can be used within the framework. A haircut is the valuation reduction applied for collateral purposes. Together, those two decisions affect how an asset is treated when it is brought into a Eurosystem operation.
The ECB said the second-best-rating rule will cover private-sector assets including unsecured bank bonds, covered bank bonds, assets issued by non-financial corporations and assets issued by public-sector entities outside the euro area. The rule relies on ratings issued by external credit assessment institutions. The announcement does not provide a numerical comparison of the prior and revised treatment for any individual security, issuer or counterparty.
Nor does the published summary specify how often multiple external ratings are available for each type of asset, or identify particular instruments whose eligibility or haircut will change once the rule applies. The practical effect will therefore depend on the ratings associated with assets presented under the collateral framework and on the applicable schedule for their individual characteristics.
The distinction between private-sector assets and euro-area public-sector assets is explicit. The ECB said euro-area public-sector collateral will retain use of the first-best rating. That preserves a separate ratings convention for that part of the asset universe while the new second-best standard is introduced for the stated private-sector categories.
The rating change was not first introduced in the September publication. The ECB said it had been announced on 21 February 2025. The new guidelines place that earlier decision into the amended legal and operational documentation scheduled to take effect in late November 2026. The announcement presented the guidelines as the vehicle for implementation rather than as a fresh decision on the underlying ratings policy.
Haircut schedule will be refined
The second major strand of the package is an update to the haircut schedule for assets used as collateral. The ECB linked this work to a review of its risk-control framework for monetary-policy credit operations, announced on 17 November 2025. It described the aims of that review as maintaining adequate risk protection, improving consistency and enhancing the risk equivalence of assets while ensuring collateral remains available.
The scheduled revisions include more detailed treatment for own-used or retained assets. They also increase the granularity of haircuts applied to individual credit claims by taking account of the type of amortisation attached to each claim. A credit claim can therefore be treated with greater reference to its amortisation type under the revised schedule, rather than only through a less differentiated treatment.
The ECB did not provide in its announcement a complete new table of haircut levels, nor did it quantify the aggregate effect of the revisions on collateral availability. It also did not state that the changes would necessarily raise or lower haircuts across the entire range of assets. The disclosed point is narrower: the schedule will be updated, including the two specified refinements.
That limitation is important in reading the announcement. A framework adjustment can be operationally meaningful without establishing a single directional outcome for every class of collateral. The published material identifies the areas of refinement and the policy rationale cited for the wider risk-control review, but it does not offer asset-by-asset outcomes in the summary.
The revised treatment of financial subsidiaries within non-financial corporate issuer groups is another part of the effort to align classifications. Subject to stated conditions, those subsidiaries will move into the same haircut category as their non-financial corporate parents. They will be placed in haircut category III, may be used as credit-claim debtors and will be subject to the Eurosystem collateral framework’s climate factor.
The ECB said this alignment is intended to match the treatment of the subsidiaries with that of their parent non-financial corporations. The decision had previously been announced on 24 July 2026, according to the ECB. The September guidelines incorporate it into the amended implementation framework. The conditions referred to by the ECB matter, but the source summary does not set out those conditions in detail.
A temporary COVID-era route is due to close
The package also sets an end point for a temporary eligibility arrangement involving certain credit claims with COVID-19-related public-sector guarantees. Claims that do not satisfy all of the general collateral framework’s requirements, but benefit from such a guarantee under the temporary framework, will remain eligible only through the end of 2026.
This is a time-limited provision rather than an open-ended revision. The date means that the affected claims retain eligibility for a defined remaining period under the temporary route, after which the exception described by the ECB no longer applies. The announcement does not quantify the number, value or geographic distribution of claims that may use that route.
The ECB linked this measure to a 25 June 2026 announcement concerning the integration of non-financial credit-claim portfolios into the general collateral framework and the phase-out of temporary measures. That chronology places the year-end deadline within a broader move away from the specified temporary COVID-related treatment, while leaving the general framework as the relevant standard for credit claims.
For counterparties, the distinction between the general framework and the temporary guarantee-based route is consequential in operational terms. Yet the announcement does not identify affected institutions or provide estimates of how the change will alter their collateral positions. It is therefore not possible from the disclosed material to calculate institution-level effects or infer market-wide consequences.
Guidelines formalise decisions announced over time
The ECB’s account presents the September publication as a consolidation of measures announced at different points. The ratings decision dates to February 2025; the risk-control review was announced in November 2025; the phase-out of the COVID-related temporary eligibility route was announced in June 2026; and the subsidiary reclassification was announced in July 2026.
Guidelines ECB/2026/26 and ECB/2026/27 amend two earlier legal instruments: the General Documentation Guideline governing implementation of the Eurosystem monetary-policy framework, and the guideline on valuation haircuts used in that implementation. The ECB said the new guidelines are available in English and will be published in all 24 official languages of the European Union in the Official Journal of the European Union.
The primary documentation identified by the ECB is therefore the two new guidelines themselves, rather than an earnings release, market estimate or trading statement. No current asset prices, currency-market figures, equity prices or market-reaction data were supplied with the announcement. The ECB also did not make forecasts about funding costs, bank earnings, credit growth or investment returns, and none can be drawn from the announcement alone.
What is known is the planned application date, the altered ratings methodology for the named private-sector collateral categories, the continued first-best approach for euro-area public-sector assets, the haircut-schedule refinements, the subsidiary classification change and the year-end expiry for the defined temporary COVID-related arrangement. What is not established in the available material is the precise effect on any specific asset, issuer, bank or operation.
The report is based on the ECB’s own announcement and has not been independently corroborated. The underlying guidelines are the primary documents cited by the central bank, but the supplied material does not include their full text or enough detail to assess every operational consequence of the revisions before their scheduled 30 November application.
For further context on this subject, see ECB says 9.96 million joined survey on future euro banknotes.
Reporting notes
What is confirmed: Private-sector collateral will use the second-best external rating; euro-area public-sector assets retain the first-best approach.
Why this matters: The rules govern eligibility and valuation haircuts for collateral used in Eurosystem monetary-policy credit operations.
What remains unclear: The announcement does not quantify effects on specific assets, counterparties, collateral availability or markets. This report is based on one source and has not been independently corroborated.
