Insurers must hold capital to survive bad scenarios, and the rules differ by place. The EU’s Solvency II requires capital at the 99.5% one-year Value-at-Risk of own funds. The US uses a factor-based system with action levels from 200% down to 70%. India requires a 150% solvency ratio. A separate standard, IFRS 17, governs when insurance profit is reported.
Why it matters: Capital rules decide how big a shock an insurer can absorb before the regulator steps in.
Summary: Solvency rules make insurers hold capital against adverse scenarios. The EU’s Solvency II sets a Solvency Capital Requirement at the 99.5% one-year Value-at-Risk of own funds, the US uses factor-based risk-based capital with action levels from 200% down to 70%, and India requires a 150% solvency ratio. IFRS 17 then governs when insurance profit is reported.
- Solvency II values liabilities as a best estimate plus a risk margin, discounted at risk-free rates, and adds the ORSA under Pillar 2.
- The MCR sits between 25% and 45% of the SCR; a breach of the SCR requires a recovery plan within two months.
- US RBC ratio = total adjusted capital ÷ Authorized Control Level RBC; below 200% the insurer must file a plan, below 70% the regulator must take control.
- IFRS 17’s contractual service margin releases profit over the coverage period and recognizes losses at once.
- Ratios of 250%, 150% and 150% in three regimes are not comparable: read each as distance from its own trigger.
Insurance regulators require insurers to hold sufficient capital to remain solvent even under adverse scenarios, using a risk-based framework directly analogous to Basel’s bank capital requirements (Volume I’s Part 3). The EU’s Solvency II framework is the most comprehensive global example: it requires insurers to calculate a Solvency Capital Requirement (SCR) — the capital needed to withstand a 1-in-200-year adverse event — and a lower Minimum Capital Requirement (MCR), below which regulatory intervention becomes severe and immediate.
How Solvency II builds the number. The framework has three pillars: quantitative requirements (valuation and capital), governance and risk management, and reporting and disclosure. Pillar 1 starts from a market-consistent balance sheet. Technical provisions, the insurance liabilities, equal a best estimate (the probability-weighted average of future cash flows, discounted with the risk-free interest rate term structure) plus a risk margin (the cost of holding capital against those liabilities until they run off). Own funds are what remains: the excess of assets over liabilities, plus qualifying subordinated debt. They are sorted into three tiers by how permanently available and how deeply subordinated they are, with Tier 1 (chiefly equity and retained earnings) the highest quality. The SCR is calibrated as the Value-at-Risk of basic own funds at a 99.5% confidence level over one year, the formal meaning of “1-in-200-year.” The MCR uses an 85% confidence level and is held within 25% to 45% of the SCR. Insurers compute the SCR with a standard formula or, with supervisory approval, their own internal model.
Pillar 2 adds the Own Risk and Solvency Assessment (ORSA): the insurer’s own view of its overall solvency needs given its risk profile, risk tolerances and business strategy, of whether it will keep meeting its capital requirements, and of how far its risk profile departs from the assumptions behind the SCR. The ORSA is where a board must look beyond the formula. If own funds fall below the SCR, the insurer must inform its supervisor immediately, submit a realistic recovery plan within two months, and restore coverage within six months (extendable by three). The EU’s amending Directive (EU) 2025/2 updates the framework, with its new provisions applying from January 30, 2027.
An insurer ($ millions) holds assets of 10,000. Its best estimate of liabilities is 8,600 and its risk margin 200, so technical provisions are 8,800. Other liabilities are 300 and subordinated debt 100. Excess of assets over liabilities = 10,000 − 8,800 − 300 − 100 = 800. Basic own funds = 800 + 100 of qualifying subordinated debt = 900. With an SCR of 600, the SCR coverage ratio = 900 ÷ 600 = 150%. The MCR must lie between 25% × 600 = 150 and 45% × 600 = 270.
Now let rates rise. Suppose assets fall 3%, to 9,700, while the longer-dated best estimate falls 5%, to 8,170 (holding the risk margin and the SCR unchanged for simplicity). Excess = 9,700 − 8,170 − 200 − 300 − 100 = 930; own funds = 1,030; coverage = 1,030 ÷ 600 = 172%. Because liabilities are discounted at market rates, a rate rise that cuts asset values can still raise solvency, the same mechanism as Part 1.6: The Insurance Balance Sheet — Float and Investment Income and Part 10.2: Case One — A Global Recession, Fully Traced.
The US approach: risk-based capital. In the US, insurance is regulated by the states, which use the NAIC’s risk-based capital (RBC) system, adopted for life insurers in 1992 and implemented in 1993, with property-casualty and health formulas following. RBC is a factor-based formula on statutory accounts, not a 1-in-200 market-value model: it charges capital for asset risk, insurance (underwriting) risk, interest-rate risk, business risk and affiliate risk, and produces the Authorized Control Level (ACL) RBC. The RBC ratio is total adjusted capital (essentially statutory capital and surplus) divided by ACL RBC, and the model law ties regulatory action to it:
| Total adjusted capital as a % of ACL RBC | Level | What happens |
|---|---|---|
| 200% and above | No action level | No intervention, though between 200% and 300% a trend test can trigger company action |
| 150% to 200% | Company Action Level | The insurer must file an RBC plan explaining the problem and the fix |
| 100% to 150% | Regulatory Action Level | The regulator examines the insurer and orders corrective action |
| 70% to 100% | Authorized Control Level | The regulator may take control of the insurer |
| Below 70% | Mandatory Control Level | The regulator must take control |
Capital rules decide whether an insurer can pay; accounting rules decide when it reports profit. IFRS 17, effective for annual periods beginning on or after January 1, 2023, measures each group of contracts as fulfillment cash flows (spelled “fulfilment” in the standard): the present value of future cash flows on current assumptions plus a risk adjustment for non-financial risk. To these it adds a contractual service margin (CSM), the unearned profit. The CSM is released to profit as coverage is provided, so a profitable 20-year policy reports its profit over 20 years rather than at sale; if a group of contracts is or becomes loss-making, the loss is recognized immediately. The standard also separates insurance revenue from insurance finance income and expense, so readers can see underwriting and investment results apart. US insurers report under US GAAP instead, and Indian insurers move to Ind AS (India’s IFRS-converged standards) under the timetable in the India Lens.
Read every solvency ratio against its own trigger, then against its own sensitivity. Under Solvency II, 100% SCR coverage is the legal line, and a board sets its own target above it as a buffer; under US RBC, 200% of ACL RBC is the first action line; under IRDAI, 150% is the control level. If a ratio sits within about 30 to 40 points of its trigger (for example an SCR ratio below roughly 140%), then ask for the published sensitivities to a fall in equities, a rise in credit spreads and a move in rates, and check whether one plausible shock would cross the line. These cushions are heuristics, not regulatory numbers. If the ratio is well above target but the ORSA or the sensitivities show a single dominant risk, then treat the headline as less reassuring than it looks.
Comparing solvency ratios across regimes, or across bases, as if they were the same number. A US insurer with total adjusted capital of $500 million and ACL RBC of $200 million has an RBC ratio of $500m ÷ $200m = 250%. Measured against the Company Action Level ($400 million, twice ACL), the same capital is $500m ÷ $400m = 125%. The same capital can be quoted as 250% or 125% depending on the denominator. Put next to a European insurer’s 150% SCR coverage or an Indian insurer’s 150% solvency ratio, the four numbers look comparable and are not: each divides a differently measured capital figure by a differently calibrated requirement. Ranked by headline, the US insurer at 250% looks strongest and the European and Indian insurers, both at 150%, look equal. Measured as distance from each trigger, the US insurer is 50 points above its 200% action level, the European insurer 50 points above its 100% SCR line, and the Indian insurer exactly at its 150% control level, with no cushion at all. Always restate each ratio as distance from its own regulatory action level, and read the definitions in the filing.
What is the Solvency Capital Requirement under Solvency II?
It is the capital an EU insurer must hold so that its own funds would survive the worst one-year loss expected once in 200 years, defined as the 99.5% Value-at-Risk of basic own funds over one year. It covers underwriting, market, credit and operational risk, calculated with a standard formula or an approved internal model. Falling below it requires a recovery plan within two months.
What is a good solvency ratio for an insurer?
One comfortably above its own regulatory trigger after realistic shocks. Under Solvency II the trigger is 100% SCR coverage; under US RBC, action starts below 200% of Authorized Control Level RBC; in India, the floor is 150%. A ratio’s meaning depends on how capital and the requirement are measured, so compare insurers only within one regime.
What is the RBC ratio?
It is a US insurer’s total adjusted capital divided by its Authorized Control Level risk-based capital, a requirement calculated from formula charges for asset, insurance, interest-rate and business risk. Below 200% the insurer must file a plan; below 70% the state regulator must take control.
What is the contractual service margin in IFRS 17?
The CSM is the unearned profit in a group of insurance contracts, held on the balance sheet at inception and released to income as coverage is provided. It prevents insurers from booking a policy’s lifetime profit on the day of sale. Loss-making groups have no CSM; their expected loss is recognized at once.
The 150% solvency ratio. India still uses a fixed-factor solvency regime rather than a risk-based one. The Insurance Regulatory and Development Authority of India (IRDAI) defines the solvency ratio as the available solvency margin (ASM, the excess of the value of an insurer’s assets over its insurance and other liabilities) divided by the required solvency margin (RSM), and every insurer must hold a control level of solvency of 150% at all times, under the IRDAI (Actuarial, Finance and Investment Functions of Insurers) Regulations, 2024. For general insurers, the RSM for each line of business is the higher of RSM-1, based on 20% of the higher of gross or net premiums, and RSM-2, based on 30% of the higher of gross or net incurred claims, each adjusted by prescribed factors. Because the formula keys off premium and claims volume rather than modeled risk, two insurers of equal size but very different catastrophe or investment risk can show the same requirement, which is the gap a move to risk-based capital is meant to close; IRDAI has run quantitative impact studies toward that transition, but its earlier target of the end of 2025 slipped, and as of August 2026 a parliamentary committee was still urging IRDAI to expedite it. As Part 1.8: Solvency Regulation — Solvency II and Risk-Based Capital warns, India’s 150% is a floor measured on its own basis, not a number to compare with a US RBC ratio or a Solvency II coverage ratio.
Accounting: Ind AS from April 1, 2026. IRDAI has amended its 2024 regulations so that insurers adopt Indian Accounting Standards (Ind AS, India’s IFRS-converged standards, whose insurance-contracts standard corresponds to IFRS 17) from April 1, 2026, with parallel reporting under the old format for two years. Insurers could apply by April 30, 2026, for a one-year forbearance with a board-approved plan, filing Ind AS pro forma statements to IRDAI meanwhile. The contractual service margin described in Part 1.8 therefore now matters for reading Indian insurers’ results too.
Term plans and ULIPs. A unit-linked insurance plan (ULIP) combines life coverage with investment in market-linked funds, India’s counterpart of US variable universal life (Part 1.2: Types of Insurance). IRDAI raised the ULIP lock-in period from three years to five, requires charges to be spread evenly over the lock-in rather than front-loaded, requires minimum mortality or health coverage on ULIPs other than pension and annuity products, and caps discontinuance charges. A pure term plan buys only the mortality risk, so for the same sum assured it costs far less; the ULIP’s lock-in and charges are the price of the bundled savings element.
The Part 1.3 premium example in rupees. 10,000 policyholders × 2% frequency × ₹1,50,000 average claim = ₹3 crore of expected claims, a pure premium of ₹3,00,00,000 ÷ 10,000 = ₹3,000. With expenses of 20% and a profit margin of 5% of premium, the grossed-up premium is ₹3,000 ÷ (1 − 0.25) = ₹4,000, not ₹3,000 × 1.25 = ₹3,750; at ₹3,750 the margin is used up by expenses of ₹750 and no profit remains.
Solvency II requires own funds covering a Solvency Capital Requirement set at the 99.5% one-year Value-at-Risk, with an MCR beneath it and an ORSA alongside; US states apply NAIC risk-based capital action levels from 200% down to 70% of Authorized Control Level; India requires a 150% solvency ratio. These ratios measure different things, and IFRS 17, through the contractual service margin, governs when insurance profit appears in the accounts.
Four questions on this chapter. Decide on your answer first, then click “Reveal Answer.”
1. An EU insurer has eligible own funds of 1,200 and a Solvency Capital Requirement of 800. What is its SCR coverage ratio?
- 133%
- 67%
- 200%
- 150%
Reveal Answer
Answer: D. Coverage = own funds ÷ SCR = 1,200 ÷ 800 = 150%.
2. With an SCR of 800, within what range must the Minimum Capital Requirement fall?
- 200 to 360
- 80 to 200
- 360 to 800
- 400 to 600
Reveal Answer
Answer: A. The MCR is held between 25% and 45% of the SCR: 25% × 800 = 200 and 45% × 800 = 360.
3. A US insurer has total adjusted capital of $340 million and Authorized Control Level RBC of $200 million. Which level applies?
- Mandatory Control Level: the regulator takes control
- No action level: no intervention applies
- Company Action Level: it must file an RBC plan
- Regulatory Action Level: the regulator orders action
Reveal Answer
Answer: C. RBC ratio = $340m ÷ $200m = 170%, inside the 150% to 200% Company Action Level band.
4. Under IFRS 17, how is the expected profit on a profitable group of 20-year contracts reported?
- Recognized in full on the day the contracts are sold
- Released over the coverage period through the CSM
- Recognized only when investment income is received
- Deferred until the last contract in the group expires
Reveal Answer
Answer: B. The CSM holds unearned profit and releases it as coverage is provided; only losses are recognized immediately.
- Directive 2009/138/EC (Solvency II), EUR-Lex — SCR, MCR, technical provisions, ORSA, own funds tiers, recovery plan
- NAIC, Risk-Based Capital for Insurers Model Act (#312) — RBC action levels
- NAIC, Risk-Based Capital
- EIOPA, Solvency II
- IFRS Foundation, IFRS 17 Insurance Contracts
- IRDAI circular IRDAI/IFRS/CIR/MISC/45/4/2026 on Ind AS (April 1, 2026)