APRA APS 180 Counterparty Credit Risk explained

What APS 180 requires at a glance

APS 180 is the Australian Prudential Regulation Authority (APRA) prudential standard that sets out how an authorised deposit-taking institution (ADI) must measure, hold capital against, and manage counterparty credit risk — the risk that the counterparty to a derivative or financing transaction defaults before the final settlement of the transaction's cash flows. In short, "APS 180" tells banks how to size the capital they must hold for OTC and exchange-traded derivatives, securities financing transactions and long settlement transactions.

The standard is *Prudential Standard APS 180 Capital Adequacy: Counterparty Credit Risk*, made by APRA under the *Banking Act 1959*. It is a supporting standard within APRA's capital framework, feeding the overall capital adequacy requirements set by APS 110. The current version commenced 1 January 2024, aligning Australia with the relevant Basel III counterparty credit risk reforms.

The primary source is APRA. You can read the standard on the APRA Prudential Handbook and the broader capital framework on apra.gov.au. This is a financial-services obligation; see the financial services topic hub for related material.

Who APS 180 applies to

APS 180 applies to ADIs operating in Australia and to authorised non-operating holding companies (authorised NOHCs) to the extent set out in the standard. It does not apply to:

• foreign ADIs (branches of overseas banks operating in Australia);
• purchased payment facility (PPF) providers; and
• entities classified as non-significant financial institutions (non-SFIs), which sit outside parts of the framework.

In practice, the substantive capital-measurement obligations bite hardest on locally incorporated ADIs that hold derivative and securities-financing books — most relevantly the major banks and other larger institutions with active treasury and markets operations.

A key distinction within the standard is between IRB ADIs (those accredited to use the internal ratings-based approach to credit risk) and standardised ADIs. The two groups are required to use different methods to measure counterparty exposure, as set out below.

Transactions and exposures in scope

APS 180 governs counterparty credit risk arising from a defined set of transaction types, in both the banking book and the trading book:

• OTC derivative transactions (over-the-counter derivatives such as interest rate swaps, FX forwards and credit default swaps);
• exchange-traded derivative transactions;
• securities financing transactions (SFTs) — repos, reverse repos, securities lending and borrowing, and margin lending; and
• long settlement transactions, where settlement occurs well beyond standard market practice.

The common thread is that the institution faces potential loss if a counterparty fails before settlement is complete. The standard also addresses exposures to central counterparties (CCPs), distinguishing between qualifying CCPs (QCCPs) and non-qualifying CCPs, because cleared exposures attract different capital treatment from bilateral ones.

Measuring exposure: SA-CCR and the adjusted CEM

The heart of APS 180 is how an ADI calculates the exposure amount for each in-scope transaction before applying risk weights for capital purposes. The method depends on the ADI's accreditation:

SA-CCR is the more risk-sensitive, internationally harmonised methodology. It builds an exposure measure from a replacement-cost component plus a potential-future-exposure (PFE) add-on, recognising netting and collateral within prescribed limits. It replaced older approaches to better capture the risk of derivative portfolios under stress.

The adjusted CEM is a simpler, more conservative method retained for standardised ADIs, calculating exposure as current mark-to-market value plus an add-on for potential future movements.

Once the exposure amount is determined, the ADI applies the relevant risk weights (under the credit risk standards, APS 112 for standardised and APS 113 for IRB) to derive risk-weighted assets that flow into the capital adequacy calculation under APS 110. Confirm the specific factors and formulas against the current text of the standard, as these are detailed and periodically updated.

CVA risk and default fund capital charges

Beyond default risk on the exposure itself, APS 180 requires two additional capital charges where applicable:

• Credit valuation adjustment (CVA) risk capital charge — capital held against the risk of loss from changes in the CVA, that is, mark-to-market losses arising from deterioration in a counterparty's credit quality on bilateral OTC derivatives. This is a distinct charge layered on top of the default-risk capital.
• Default fund capital charge — capital held against an ADI's contributions to the default fund of a qualifying central counterparty (QCCP). Clearing through a QCCP attracts preferential treatment compared with bilateral exposures, but default-fund contributions are not risk-free and must be capitalised.

These charges reflect the Basel framework's recognition that counterparty risk is not only about outright default but also about valuation volatility and mutualised loss arrangements at CCPs.

Risk management expectations

APS 180 is not purely a capital-calculation rule. It also requires ADIs to adopt sound risk management practices for both bilateral and centrally cleared counterparty credit risk exposures. In substance, an ADI is expected to:

• have a board-approved framework and policies governing counterparty credit risk;
• monitor and limit exposures at the counterparty and portfolio level;
• manage collateral, netting agreements and margining arrangements robustly;
• apply appropriate stress testing and wrong-way risk identification; and
• maintain systems capable of producing the exposure and capital figures the standard requires.

APRA's expectations on these qualitative matters are elaborated in associated prudential practice guidance, which should be read alongside the standard itself.

How to comply and common pitfalls

Compliance is an exercise in correctly classifying transactions, applying the right method, and capitalising every relevant component. Practical steps:

1. Confirm your ADI category (IRB vs standardised; SFI vs non-SFI) — this determines which exposure method applies.
2. Inventory in-scope transactions across OTC and exchange-traded derivatives, SFTs and long settlement transactions, in both banking and trading books.
3. Implement the correct exposure method (SA-CCR or adjusted CEM), including netting and collateral recognition within the standard's limits.
4. Calculate the CVA and default fund charges where applicable, and confirm QCCP status for cleared exposures.
5. Reconcile outputs into APS 110 capital adequacy and APRA reporting.

Common pitfalls include: misclassifying a non-qualifying CCP as qualifying; over-recognising netting or collateral beyond what the standard permits; omitting the CVA charge on bilateral OTC books; treating long settlement transactions as ordinary settlements; and failing to keep systems aligned when APRA updates the methodology. Because the detailed factors change over time, always work from the current version of the standard on the APRA Prudential Handbook rather than from memory.