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Solution · Insurance

One regulatory-change workflow for Solvency II and IFRS 17.

Updated July 19, 2026 7-minute read Product guide

Solvency II and IFRS 17 have different objectives and calculations, but they often depend on related actuarial, finance, risk and data processes. Connect both requirement sets without collapsing the differences that matter.

Solvency II and IFRS 17 have different objectives, calculations and reporting outputs, but they often depend on related actuarial, finance, risk and data processes. Sia RegAI helps insurers connect both requirement sets to shared policies, controls, owners and evidence—without replacing the systems that perform valuation, capital or accounting calculations.

Two regimes, one operating environment

Solvency II is a prudential regime. It addresses the financial resources, governance, risk management and supervisory reporting expected of EU insurers and reinsurers.

IFRS 17 is an accounting standard for insurance contracts. It governs recognition, measurement, presentation and disclosure in general-purpose financial statements.

The objectives are different. So are important concepts, methods and outputs. Yet the implementation burden frequently converges in the same operating environment:

  • Actuarial cash-flow data and assumptions.
  • Discount-rate governance.
  • Data lineage and quality controls.
  • Model change and validation.
  • Close and reporting calendars.
  • Reconciliations and management review.
  • Policies, methodologies and approval evidence.
  • Regulatory and accounting change assessment.

The opportunity is not to force the two regimes into one calculation. It is to manage their relationships deliberately, reuse appropriate controls and evidence, and preserve the differences that matter.

Where requirements overlap—and where they do not

Area Solvency II IFRS 17 Control opportunity
Primary purpose Prudential solvency, capital adequacy and policyholder protection Comparable accounting for insurance contracts Keep distinct interpretations and outputs while sharing governed source data where appropriate
Cash-flow estimates Used in the valuation of insurance obligations Used in fulfilment cash flows Align data lineage, ownership, reconciliations and assumption governance
Discount rates Defined by the prudential framework and related technical requirements Reflect timing, currency and liquidity characteristics under the accounting standard Preserve separate methodologies while sharing rate governance and change controls where justified
Risk adjustment / margin Includes the Solvency II risk margin Includes an explicit adjustment for non-financial risk Do not treat the measures as interchangeable; document separate methodology and approvals
Contractual service margin Not a Solvency II concept Represents unearned profit under relevant IFRS 17 measurement models Maintain IFRS 17-specific calculations, controls and disclosures
Capital requirements SCR and MCR form part of the prudential framework No equivalent prudential capital calculation Keep calculation and reporting systems separate from the requirements traceability layer
Governance and evidence System of governance, risk management, actuarial function and supervisory reporting Accounting policies, estimates, controls, close, disclosure and audit Connect shared owners, evidence and change impacts without collapsing distinct accountabilities

This table is an operating-model summary, not a substitute for the standards or firm-specific accounting and actuarial analysis.

The problem with two separate compliance inventories

When Solvency II and IFRS 17 are managed in separate spreadsheets or document repositories, the same source data, model, control or policy can be assessed repeatedly by different teams. Changes may be implemented on one side without a structured check of the other.

Typical symptoms include:

  • Duplicate requirement interpretation and control testing.
  • Unclear ownership between actuarial, finance, risk and regulatory reporting.
  • Reconciliations performed late in the close or reporting process.
  • Evidence stored separately from the requirement or decision it supports.
  • Model or assumption changes reviewed for one regime but not the other.
  • Difficulty explaining why a shared data element produces different results.
  • Manual reconstruction of impact analysis when a standard, delegated act or supervisory expectation changes.

Sia RegAI gives teams a shared requirements and impact layer without forcing them into a single calculation platform.

How Sia RegAI supports the combined workflow

Review regulatory and accounting changes

Use RegReview to identify, compare and assess changes in applicable Solvency II material and the organisation’s controlled IFRS 17 source set. Record the source, effective date, interpretation, applicability and review decision.

Identify affected obligations and processes

Break the change into actionable obligations. Connect each obligation to the entities, portfolios, products, processes, data elements, models, reports and disclosures potentially affected.

Match obligations to policies and controls

Use RegMatcher to connect the requirement to existing policies, controls, reconciliations, review steps and evidence. Highlight gaps, duplicate controls and mappings that require expert confirmation.

Route work to the right owner

Assign actions across actuarial, finance, risk, accounting policy, data, technology, compliance and internal audit. Preserve the review and approval trail rather than managing critical decisions in email.

Evidence the decision

Keep the interpretation, mapping, owner, approval, implementation evidence and effective date together. Auditors, regulators and internal reviewers can trace the outcome back to its source.

Example: assessing a change to an actuarial assumption process

  1. A relevant source or internal methodology changes.
  2. RegReview captures the change and the reviewer records its applicability.
  3. The affected Solvency II and IFRS 17 obligations are identified separately.
  4. RegMatcher surfaces shared data, model-governance and approval controls.
  5. Actuarial and finance owners confirm which controls can be reused and which must remain distinct.
  6. Actions are assigned for methodology, testing, disclosure, documentation or reporting changes.
  7. Evidence and approval are recorded before the change becomes effective.
  8. The final record shows both the shared operating impact and the different regime-specific outcomes.

A practical control model

Organise the combined inventory across six layers:

1. Source and requirement

Preserve the official source, paragraph or article, effective date, version and interpretation.

2. Applicability

Record affected entity, jurisdiction, product, portfolio and reporting basis.

3. Process and data

Map the requirement to source systems, data fields, models, transformations, calculations, reconciliations and reports.

4. Control and owner

Identify the control objective, control activity, frequency, accountable owner and reviewer.

5. Evidence and decision

Link policies, methodology papers, test results, approvals, committee minutes and reporting outputs.

6. Change and remediation

Track gaps, actions, dependencies, implementation status and residual risk.

A shared data model without shared calculations

Shared objectCommon identitySolvency II relationshipIFRS 17 relationship
Legal entityEntity identifier, jurisdiction, consolidation scopeSolo and group prudential scopeReporting-entity and consolidation scope
Product / portfolioControlled product, line-of-business and portfolio keysRisk, technical provision, capital and QRT viewsPortfolio, group and measurement-model views
Data elementSource system, field, owner, effective period and lineageInputs to valuation, capital and supervisory reportingInputs to fulfilment cash flows, CSM and disclosures
MethodologyVersion, approval, model owner and change recordPrudential assumptions and methodsAccounting policy, estimates and methods
ControlControl ID, objective, owner, frequency and evidenceGovernance, data, model and reporting assuranceFinancial-close, model, disclosure and audit assurance
OutputReport ID, period, producer, approver and retained evidenceQRT, SFCR, RSR and internal prudential reportingFinancial statements, notes, reconciliations and management reporting

The identifiers can be shared while calculations and accounting conclusions remain in their authorised systems. Every mapping should record whether the relationship is equivalent, convergent, supporting or regime-specific.

Reconciliation workflow

  1. Confirm the entity, product, portfolio, currency and reporting-period perimeter on both sides.
  2. Reconcile controlled source populations before comparing calculated outputs.
  3. Separate expected methodology differences from data defects, mapping errors and timing differences.
  4. Assign each break to actuarial, finance, data or reporting ownership and record the resolution rationale.
  5. Retest affected totals and disclosures after correction; do not clear an exception only because the net difference is small.
  6. Retain the approved reconciliation, unresolved items, materiality decision and downstream-report impact.

Implementation architecture

LayerSystem roleSia RegAI role
Official sourcesEUR-Lex, EIOPA and the organisation’s controlled IFRS source setCapture version, change, applicability and review decision
Actuarial and finance systemsCash flows, assumptions, valuation, capital, subledger, consolidation and accounting entriesReference system, field, model and output; do not replace calculation ownership
Data and reconciliationData platform, lineage, quality rules and reconciliation engineConnect requirements to data elements, controls, owners, issues and evidence
ReportingQRT/SFCR/RSR production and financial-statement reportingTrace output requirements to process, approvals and retained evidence
Governance and GRCPolicies, controls, actions, testing and auditProvide source-linked regulatory interpretation and mapping; define the system of record during implementation

Buyer and pilot checklist

Public product view

Sia RegAI regulatory review and mapping interface shown in the public product demo
Still image from the public Sia RegAI walkthrough. Validate the proposed insurance data model, workflow fields and integrations in a current demonstration. Watch the 54-second demo.

Designed to complement—not replace—your existing stack

Insurers already use specialised systems for actuarial modelling, finance, subledger processing, consolidation, capital calculation and regulatory reporting. Replacing those systems is rarely the fastest way to improve regulatory traceability.

Sia RegAI sits around that stack. It makes the relationship between source, obligation, process, control and evidence explicit, while calculation results remain in their designated system of record.

Outcomes to validate in a pilot

A focused pilot should demonstrate that the team can:

  • Trace a regulatory or accounting change to affected processes and controls.
  • Distinguish shared controls from regime-specific requirements.
  • Identify ownership and evidence gaps earlier.
  • Compare the current and previous interpretation or mapping.
  • Export an audit-ready record of review, action and approval.
  • Reduce duplicate review without creating false equivalence between the regimes.

Avoid promising a specific time or cost reduction until it has been measured in an approved customer case.

Frequently asked questions

Can one system calculate both Solvency II and IFRS 17?

Some actuarial and finance platforms support calculations or reporting for both regimes. Sia RegAI serves a different role: it manages requirements, impact, controls, ownership and evidence across the surrounding operating model.

Are Solvency II and IFRS 17 values interchangeable?

No. The frameworks have different purposes and important methodological differences. Shared source data or controls do not imply that the resulting measures are equivalent.

Does Sia RegAI produce IFRS 17 accounting entries?

No. Accounting engines, subledgers and finance systems remain responsible for accounting calculations and entries. Sia RegAI connects requirements and changes to the relevant process and evidence.

Does Sia RegAI calculate Solvency II capital requirements?

No. SCR, MCR, technical provisions and related actuarial calculations remain in the insurer’s authorised actuarial and capital systems.

Who should participate in implementation?

Typical stakeholders include actuarial, finance, accounting policy, risk, regulatory reporting, data, technology, compliance and internal audit. The exact governance depends on the insurer’s operating model.

Connect requirements to the way your insurer actually works

See how Sia RegAI can map Solvency II and IFRS 17 requirements to the processes, controls, owners and evidence already operating across your actuarial, finance and risk environment.

Primary sources

Connect requirements to the way your insurer works.

Map Solvency II and IFRS 17 requirements to the processes, controls, owners and evidence across actuarial, finance and risk.