Significant Risk Transfer — the regulatory outcome

What SRT is — and is not

Under Article 245(1) CRR (in conjunction with Article 244(1) CRR for traditional securitisations), an originating institution may exclude the securitised exposures from the calculation of risk-weighted exposure amounts and expected loss amounts where the competent authority is satisfied that a commensurate amount of credit risk has been transferred to third parties, either through a true-sale structure or through a credit-protection agreement. The capital charge is then determined by reference to the securitisation positions the originator retains, instead of by reference to the underlying reference portfolio.

SRT is therefore a regulatory status, not a transaction type. The transactions that seek to achieve it include:

• Synthetic securitisations — today the dominant European CRE use-case, because the bank keeps the loan relationship and only transfers credit risk; and

• Traditional (“true sale”) securitisations — including CMBS and non-performing-exposure (NPE) securitisations, where the assets themselves are transferred to an SSPE.

Using “SRT” as a synonym for “synthetic securitisation” is common market shorthand but technically imprecise: a synthetic securitisation that fails the Article 245 CRR tests is still a synthetic securitisation, but it delivers no SRT and therefore no capital relief; and a traditional securitisation that meets the Article 244 CRR tests can achieve SRT notwithstanding the absence of any synthetic element. Both points matter for supervisory dialogue and for disclosure.

Legal basis — Articles 244–246 CRR

Article 244 CRR — SRT for traditional securitisations. Permits derecognition of the securitised exposures from the originator's RWA calculation where one of the two quantitative tests is met and the qualitative conditions in Article 244(4) and (5) are satisfied. The insolvency-proof transfer of the exposures to the SSPE must be confirmed by an external legal opinion.

Article 245 CRR — SRT for synthetic securitisations. Largely mirrors Article 244 on the tests and the qualitative conditions, adjusted for the fact that the exposures remain with the originator and risk transfers through a credit-protection agreement rather than through a sale.

Article 246 CRR — Additional operational requirements for securitisations of revolving exposures such as credit-card receivables, reflecting the possibility that the risk may revert to the originator (early-amortisation events).

Article 247 CRR — Treatment of re-securitisations (generally prohibited by Article 8 of the Securitisation Regulation, save for narrowly defined restructuring contexts).

Articles 248–249 CRR — Supporting operational requirements and treatment of implicit support. Implicit support outside the scope of the contractual obligation vitiates the SRT and triggers an originator-wide supervisory review.

The primary-law framework is supplemented by the EBA Guidelines on SRT assessment (final, 2024; effective 2025), which codify ECB SSM practice on the supervisory review of SRT transactions, together with RTS on the homogeneity of underlying exposures and the relevant ITS on transparency reporting.

The quantitative SRT tests

An originating institution may recognise SRT where at least one of the following two tests is met (Article 244(2) / 245(2) CRR):

Mezzanine test. The risk-weighted exposure amounts of the mezzanine securitisation positions held by the originator do not exceed 50% of the risk-weighted exposure amounts of all mezzanine securitisation positions in the securitisation.

First-loss test. The originator does not hold more than 20% of the exposure value of the first-loss tranche, provided that the first-loss tranche is of sufficient size and the securitisation contains no mezzanine tranche.

Both tests are bright-line gating metrics. Meeting one of them is a necessary but not a sufficient condition for SRT recognition: the transaction must also satisfy the qualitative requirements in paragraphs (4) and (5) of Article 244 / 245 CRR, and the supervisor must be satisfied that the commensurate-transfer test is met.

Qualitative requirements

Article 244(4) / 245(4) CRR sets out structural and documentation requirements whose purpose is to ensure that the risk transfer is real and durable. In summary:

• The transaction documentation reflects the economic substance of the transaction.

• The exposures (traditional) or the credit protection (synthetic) are beyond the reach of the originator and its creditors, including in the event of the originator's insolvency — confirmed by a qualified legal opinion.

• The originator has no obligation (and no intention) to re-purchase the exposures or the credit protection save for a clean-up call exercisable when the outstanding balance falls below 10% of the original amount.

• The securitisation includes no provision that would require the originator to improve the credit quality of the exposures or the securitisation positions (no implicit support).

• Payments to investors are not structurally subordinated to payments to the originator and depend solely on the performance of the underlying exposures.

• Early-termination rights are limited and commensurate.

Retention, derecognition and the capital floor

The SRT benefit interacts with two other hard constraints.

Minimum 5% risk retention — Article 6 Securitisation Regulation. The originator (or sponsor / original lender, or in NPE transactions the servicer) must retain a material net economic interest of at least 5% in the securitisation on an ongoing basis. Permitted retention forms include vertical retention of 5% of each tranche, horizontal retention of the first-loss tranche, random selection of at least 5% of the underlying exposures and, for NPE securitisations, retention calibrated by reference to the net (not nominal) value of the exposures. The retention cannot itself be hedged or collateralise another transaction.

No-worse-than capital floor. Article 252 CRR prevents a securitisation from producing a lower capital requirement for the originator than the capital requirement that would have applied to the underlying exposures absent the securitisation. SRT can neutralise the RWA impact of the securitised portfolio; it cannot produce a capital arbitrage relative to the pre-securitisation position.

Accounting derecognition. In traditional securitisations the accounting analysis (IFRS 9 for most European originators) must reach the same conclusion as the regulatory analysis: if the exposures are not derecognised under IFRS 9 (for example because the originator retains substantially all the risks and rewards), a positive regulatory SRT assessment will not translate into balance-sheet relief. In synthetic securitisations the exposures remain on balance sheet and the question is instead whether the credit-protection agreement achieves the expected profit-and-loss and capital-adequacy effects. Mis-alignments between the accounting and regulatory analyses are the classic source of execution risk.

Revolving exposures — Article 246 CRR

Where the underlying exposures are revolving (classically credit-card receivables or trade receivables in an ABCP structure), Article 246 CRR imposes additional operational requirements designed to address the risk that the exposures — and the associated credit risk — revert to the originator. These include specified early-amortisation triggers, caps on excess-spread capture and monitoring obligations. In European CRE the point is marginal (CRE loans are typically term rather than revolving), but it arises in warehouse structures with an SRT embedded in the warehouse itself — see Warehouses with embedded SRT.

Supervisory gates and ongoing monitoring

The ECB SSM and the PRA apply a consistent three-gate framework derived from the EBA Guidelines:

Gate 1 — Commensurate transfer. Is the credit risk genuinely transferred in an amount commensurate with the capital relief sought? The mezzanine and first-loss tests in Article 244(2) / 245(2) CRR are the starting point; supervisors look beyond them to the expected-loss distribution across tranches under a range of stress scenarios.

Gate 2 — Pricing and tranche sizing. Are the protection premium, the tranche attachment / detachment points and the replenishment mechanics economically rational on a standalone basis? Excessive protection premiums, artificial tranche sizing or replenishment mechanics that re-concentrate risk back onto the retained positions are classic red flags.

Gate 3 — Structural robustness. Do clean-up calls, amortisation rules, replenishment criteria, early-termination rights and step-up mechanics preserve the transfer in-life? A structure that qualifies at origination but contains mechanics that can unwind the transfer under stress does not pass this gate.

All three gates are tested at origination, and re-tested whenever deal parameters change — including where the reference pool is replenished, where valuations move, where an investor in a protection tranche itself becomes levered, or where a clean-up call is exercised. The originator's own ongoing monitoring obligation under Article 6a of the Securitisation Regulation is part of the framework.

CRE-specific issues

Granularity and the mezzanine test. The mezzanine test assumes a tranching that functions against a loss distribution. In a three-loan CRE reference pool the notion of a mezzanine tranche is strained; supervisors have pushed European CRE synthetic securitisation issuers towards pools of 30+ names with geographic and sector spread precisely to give the mezzanine test meaningful work to do.

Valuation volatility and the first-loss test. CRE valuations move. A first-loss tranche that was rationally sized at origination can be materially mis-sized mid-life once the reference-pool MtM has drifted. Documentation typically builds in LTV-driven early-termination triggers, MtM revaluation mechanics and provisional tranche re-sizing protocols, but none of these is costless.

Circularity with back leverage. Where SRT investors part-fund their position with back leverage extended by other banks, the net effect is that the risk that was transferred out of one bank may re-enter the banking system via another. The PRA, ECB and FSB have all published on this circularity; supervisory dialogue now routinely covers the funding profile of the protection-side investors.

Disclosure and in-life maintenance. The Article 7 Securitisation Regulation disclosure obligations, combined with the EBA Guidelines expectations on post-issuance notification to the competent authority where any of the SRT-sensitive parameters move, make ongoing compliance as important as day-one structuring. Budget for the in-life work accordingly.

Last reviewed: 20 April 2026. Based in part on T. Prüm, Die europäische Verbriefungsverordnung, WM 2024, 1739–1749. Primary sources: Resources. For the underlying product see Synthetic Securitisation; for short definitions see the Glossary.