Solution Overview

AxiomSL enables financial firms to automate the process of calculating and reporting their capital requirements, as part of Capital Requirements Directive IV (CRD IV). Its transparent solution gives users full access to its interpretation of the European Banking Authority’s (EBA’s) standard rules. AxiomSL’s ‘one platform’ model means the same system can be used for all other regulatory reporting and calculation requirements, greatly reducing the cost and complexity of compliance.

AxiomSL’s solution automates the process of calculating and reporting conservative and countercyclical capital buffers. When users upload their data to the AxiomSL platform, it is enriched and validated, and users are given the ability to make manual adjustments. The data is then used to run all of the necessary CRD IV capital and risk-weighted asset (RWA) calculations, including credit risk, market risk, operational risk, credit valuation adjustments, default fund contribution and leverage ratio.

Users can drill down into the calculations that are run by AxiomSL’s solution and can see how the EBA’s standard rules have been applied. Each of the standard rules implemented in the AxiomSL platform includes a reference to the corresponding article in CRD IV. This makes it easy for users to understand how AxiomSL has interpreted every article of the directive. It allows them to verify the numbers that are being produced by the solution and it facilitates auditing of the process.

When the capital calculations have been completed, users can review the results and check whether they are as expected, based on trend analysis and thresholds. If necessary, they can adjust the input data. Once they are satisfied with the numbers produced, users can sign off on them. The numbers will then be automatically converted into the EBA’s XBRL taxonomy and submitted to their local regulator.

Users also have the option to use the results of the capital calculations to create a client results cube, which can be enriched with additional, client-specific data. This cube gives users management information (MI) about their capital calculations, including data about individual organizational and product hierarchies. In addition, AxiomSL’s solution can calculate how much each level in a bank’s organizational structure (e.g. each line of business or each desk) must contribute towards its capital requirements.

AxiomSL continually monitors changes to the CRD IV requirements and makes the necessary upgrades to its solution. It gives users ongoing access to earlier iterations of the EBA’s standard rules and XBRL taxonomy. These are important when rerunning or resubmitting reports.

The CRD IV capital calculations solution is built on the same platform as all of AxiomSL’s other offerings. This ‘one platform’ approach ensures consistency across reports submitted for different regulations. It also reduces cost and complexity because clients do not need to maintain separate systems to comply with different regulations.

  • A single platform that can be used not only for CRD IV capital calculations, but also for all other reporting requirements globally
  • Automates the calculation and reporting of conservative and countercyclical capital buffers
  • Enriches and validates data
  • Enables manual adjustments
  • Drilldown into calculations
  • Sign-off functionality
  • XBRL reporting
  • MI report creation
  • Updated as requirements change

CRD IV is the implementation in Europe of Basel III. It introduces new requirements in relation to the way banks, building societies and investment firms calculate and report on their capital.

Financial firms across Europe must implement new capital buffers. These include the conservative capital buffer, which applies to all firms, and the countercyclical buffer, which is being implemented at the discretion of local regulators.

In order to calculate their capital buffers, firms must determine their exposure to a wide variety of risk types, using methods outlined by the EBA in its Single Rulebook. The calculations involve enormous quantities of data from multiple sources, which must be enriched and validated before it is used.

When they have calculated their capital buffers, firms must report them to their regulator using the EBA’s XBRL taxonomy.

  • Exposure value exposure classes
  • Risk-weighted exposure amounts
  • Risk weight codes
  • Mark to market
  • Volatility adjustments
  • Scaling up of Volatility adjustment
  • Conditions for applying of 0% volatility adjustment
  • Financial collateral comprehensive method
  • Maturity mismatch (guarantees)
  • Valuation of protection
  • Master netting agreement
  • Unfunded credit protection
  • Alpha to calculate exposure value (IMM)
  • Effects of recognition of netting as risk-reducing
  • Application of scalar based on margin period of risk
  • Treatment of exposures to CCP
  • Own funds requirements for pre-funded contributions to the default fund of a CCP
  • Own funds requirements for pre-funded contribution to the defaults fund of a QCCP
  • Maturity (for CVA calculations)
  • CVA standardized method
  • Settlement/delivery risk
  • Free deliveries
  • Basic indicator approach
  • Standardized approach


  • Delta
  • Delta plus non-continuous
  • Delta plus continuous
  • Scenario approach

Interest Rate

  • Underwriting
  • Netting
  • Interest rate risk on derivatives instruments – full offsetting
  • Net position in debt instruments
  • Allowance for hedges by credit derivatives
  • Maturity-based calculation of general risk
  • Duration-based calculation of general risk
  • Own funds requirement for non-securitization debt instruments
  • Own funds requirements for securitization instruments


  • Underwriting
  • Net positions in equity instruments
  • General risk of equity instruments
  • Specific risk of equity instruments
  • Stock indices


  • Calculation of the overall net foreign exchange position
  • Closely correlated currencies
  • De minimis and weighting for foreign exchange risk


  • Positions in commodities
  • Particular instruments
  • Maturity ladder approach
  • Extended maturity ladder approach


  • Basic Method
  • Calculation of exposure value
  • Large exposure identification
  • Large exposure reporting requirements
  • Limits to large exposures
  • Additional own funds requirements for large exposures in trading book
  • Large exposure exemptions
  • Exposures arising from mortgage lending

CRD IV: Capital Calculations Solution Diagram


Resource Center

American G-SIB chooses AxiomSL for CRD IV reporting in Germany, France…

AxiomSL announced today that an American global systemically important bank (G-SIB) has decided to extend its deployment of the AxiomSL platform to support regulatory reporting in Germany, France…

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Major Swedish bank selects AxiomSL for multijurisdictional…

AxiomSL announced today that a large Swedish bank has chosen to use AxiomSL’s platform to centralize its regulatory calculations and reporting in Sweden, Germany, Norway, Finland, Poland…

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SA-CCR: Are you getting the most out of your impact analysis?

Implementing the Basel Committee on Banking Supervision’s (BCBS) standardized approach for measuring counterparty credit risk (SA-CCR) is a major undertaking for banks. Unfortunately…

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PRA clarifies interaction between its buffer and the CRD IV combined buffer

The Prudential Regulation Authority (PRA) has published a statement clarifying its approach to adjustments to firms’ PRA buffers as the Capital Requirements Directive IV (CRD IV) combined buffer…

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