Jonas Mohamed Osman Abdelghafour, known as Yonas Osman
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Insurance and Capital

IFRS 17 and Solvency II: Reconciling Two Views of the Same Balance Sheet

European insurers run two current-value measurement frameworks over the same portfolio. Solvency II answers a solvency question; IFRS 17 answers a performance question. They share a discounted, risk-adjusted foundation and then diverge on contract boundaries, risk pricing and the treatment of unearned profit. A clean bridge between them is one of the strongest signals of a well-run actuarial function.

By Jonas Mohamed Osman Abdelghafour, known as Yonas Osman · Published · Reviewed · 3 min read

Actuarial reserving triangle and claims development curve used in insurance capital analysis — IFRS 17 and Solvency II: Reconciling Two Views of the Same Balance Sheet, analysis by Jonas Mohamed Osman Abdelghafour, known as Yonas Osman
Figure 1. Schematic view of the actuarial reserving and capital measurement chain referenced in this analysis.

Executive summary

  • Both frameworks discount current best-estimate cash flows and add an explicit allowance for risk, so the starting points are close.
  • Contract boundaries differ, which changes which cash flows are recognised at all.
  • Solvency II uses a prescribed cost-of-capital risk margin; IFRS 17 uses an entity-specific risk adjustment with a disclosed confidence level.
  • IFRS 17 defers unearned profit in the CSM; Solvency II recognises expected profit in own funds immediately.
  • A documented, repeatable bridge between own funds and IFRS equity turns duplicate reporting into a single coherent view.

The common ground

Both regimes reject historic-cost measurement and both require probability-weighted cash-flow projections discounted with a curve appropriate to the liabilities. Both require an explicit allowance for risk that cannot be diversified away by the holder. That shared foundation means the underlying actuarial models, data and assumption governance can and should be common.

The four structural divergences

DimensionSolvency IIIFRS 17
Contract boundaryEnds where the insurer can unilaterally reprice to fully reflect risk of the portfolioEnds where the entity can reprice the specific contract or portfolio to reflect its risk
Discount rateEIOPA-prescribed risk-free curve with volatility or matching adjustment where approvedEntity-determined curve reflecting liability characteristics and liquidity
Risk allowanceCost-of-capital risk margin at a prescribed rateEntity-specific risk adjustment, method free, confidence level disclosed
Unearned profitRecognised immediately in own fundsDeferred in the CSM and released with service
Key differences between the two frameworks

The profit recognition difference is the largest driver of the gap. A profitable book of long-term business shows substantial value in Solvency II own funds while carrying a CSM liability under IFRS 17. The two are describing the same economics with different timing conventions, and the bridge should say so explicitly.

Building the bridge

A workable reconciliation starts from Solvency II excess of assets over liabilities and walks to IFRS equity through a fixed set of steps. The discipline is that every step must be attributable to a named methodological difference — never to an unexplained residual.

  1. Start: Solvency II own funds (excess of assets over liabilities, before tiering adjustments).
  2. Adjust for asset valuation differences where IFRS carries assets at amortised cost.
  3. Adjust for contract boundary differences in the projected cash flows.
  4. Replace the Solvency II risk margin with the IFRS 17 risk adjustment.
  5. Deduct the contractual service margin, being profit not yet earned under IFRS.
  6. Adjust for deferred tax, intangibles and other presentational differences.
  7. Arrive at: IFRS 17 shareholders' equity.

One actuarial engine, two reporting layers

The most efficient operating model runs a single cash-flow projection engine with a common assumption library, then applies framework-specific overlays for boundaries, discounting and risk allowance. Firms that build parallel models end up defending differences that originate in process rather than in economics, at every reporting cycle and every audit.

Practical example

A life insurer reports Solvency II own funds of 1,450. Asset measurement differences reduce this by 60, contract boundary differences add 25, replacing a risk margin of 140 with a risk adjustment of 95 adds 45, and the CSM of 380 is deducted. Deferred tax and presentational items add back 30, giving IFRS equity of approximately 1,110.

Presented this way, the analyst question shifts from why do the two numbers differ to how quickly will the 380 of deferred profit be released — which is a business question the management team should be able to answer from its coverage unit run-off.

Limitations and caveats

  • The bridge is sensitive to the granularity at which it is built; group-level reconciliations can conceal offsetting entity-level differences.
  • Volatility and matching adjustments have no IFRS 17 equivalent, so the discount rate step often carries judgement.
  • Transition measurement choices under IFRS 17 mean the CSM step is not fully comparable across insurers.
  • Non-EU groups reconciling to local solvency regimes face different, sometimes larger, structural differences.

Conclusion

IFRS 17 and Solvency II are not competing truths. One states whether the insurer can meet obligations under stress; the other states how performance emerges over time.

The organisations that get value from both run one set of models, one set of assumptions and one governance process, and treat the reconciliation as a control rather than a reporting deliverable.

References

Author bio

Jonas Mohamed Osman Abdelghafour, known as Yonas Osman, actuary and financial risk professional

Jonas Mohamed Osman Abdelghafour, known as Yonas Osman is an actuary, FRM and financial risk professional specialising in banking, insurance, model risk, capital modelling and quantitative risk management.