Solvency Ratio: The Capital Test an Insurer Is Read On

An insurer's solvency ratio is the margin it has available divided by the margin it is required to hold. Both halves are computed rather than read off a published statement, and the required half depends on the business the insurer has written rather than on any single recorded number. The level it has to reach is set by the Insurance Regulatory and Development Authority of India (IRDAI) at irdai.gov.in.

Start with what makes an insurer awkward to measure. A lender knows what it owes a depositor to the last rupee, and it knows the day. An insurer does not. The insurer has promised to pay an amount that depends on events which have not happened, under contracts that may still be running in forty years, and the size of that promise is an estimate until the very end. The largest number an insurer owes has not happened yet, and every capital test on an insurer is an answer to that one problem.

The capital an insurer needs therefore cannot be a share of anything already recorded. A share of assets, a share of premium, a share of net worth: each of those is a number that already exists, and none of them knows what has been promised. SolvencyThe plain state of being able to meet what is owed as it falls due. It is an everyday word about obligations, not a formula. here means the capacity to pay obligations that are still arriving, so the test has to be built from the promises rather than from the balances.

What is an insurer's solvency ratio, stated completely enough to use?

The measure is a fraction and both of its halves have names. The top is the margin available, the amount the insurer has to meet the requirement with. The bottom is the margin required, the amount it is obliged to hold. A ratio above one means the available margin exceeds the required one, and a ratio below one means it does not.

Now the part that separates this from every other ratio in these notes. The denominator is not a chosen quantity and not a quantity printed anywhere: it is the output of a computation whose method is set by an authority. A cost to income ratio leaves the base open to choice and to argument. A solvency ratio does not. The base is a requirement rather than a recorded amount, and exactly one method counts.

The level this fraction has to reach belongs to IRDAI at irdai.gov.in, and it shifts. A shifting level is the first thing to know about the measure. A level typed into these notes would not grow stale gently. The printed level would stop matching the rule on the day the rule changed, and nothing on the line would carry a mark showing which side of that day the reading fell on.

The routing rows further down are therefore where the live values are found. Each row names what to ask for and who to ask. The values come from the site named inside the row, on the morning they are actually needed.

Why is the margin available not simply the net worth on the statement?

Substituting net worth for the margin available is what almost everybody does on first contact, and the substitution is worth being slow about. Net worth is what the statement reports as the insurer's own. The margin available is something else, arrived at by three moves in order.

First, what the insurer holds is valued on a stated valuation basisThe stated method by which a thing is measured. Two people using different methods on the same holding get two different amounts, which is why the method has to be named before the number means anything.. Second, what it owes policyholders is valued on a stated basis and taken off. Third, items that are not admissibleAn admissible item is one that counts towards the total under the valuation being used. Something can be perfectly real, and perfectly owned, and still not count. are removed, because something can sit on the statement, be entirely real, and still not count towards this particular total.

All three of those valuations belong to IRDAI at irdai.gov.in, and all three shift. The shape of the calculation is stable, and its rules live somewhere specific. The rules themselves are a visit, not a memory.

The consequence is the whole point of the block: the margin available is a computed figure and not the net worth on the face of the statement, so a reader who substitutes one for the other has quietly changed the measure. Nothing warns them. The substituted number still divides, still produces a decimal, and still looks like a solvency ratio.

Why is the required margin the half that decides everything?

Most readers skip the denominator, and the denominator is where the measure lives. The margin required is not a fixed sum, not a share of assets and not a share of anything visible on a statement. The required margin is computed from the business the insurer has actually written, and so it moves when the book moves, in both directions, without a single line on the balance sheet changing.

Here is the everyday version. Two shopkeepers each keep the same amount of cash in the drawer at the close of the day. One of them has taken deposits for goods to be delivered next week; the other has taken deposits for goods to be delivered over the next thirty years, at prices already agreed. The cash in the drawer is identical. The amount each of them needs to be carrying is not remotely identical, and nothing about the drawer distinguishes one from the other.

Two insurers have promised different things to different people for different lengths of time, so two insurers with identical net worth can have completely different required margins. If one sentence from these notes is worth carrying out of the room, it is that one. The requirement is therefore computed by an actuaryA professional who puts numbers on future events that have not happened yet, using the statistics of large groups. Whose sign-off is required, and on what, is a matter for the authority named below. against a stated method rather than looked up.

Two things follow immediately. A solvency ratio is not comparable with a capital measure on a lender, and since its denominator was never a figure the reader had, it cannot be reconstructed from published figures. A lender's capital measure rests on quantities of an entirely different kind, and setting the two side by side produces a comparison of two decimals that describe nothing in common.

Why is no solvency ratio computed here at all?

Chandrika Life Insurance Limited, a life insurer built for teaching, reports policyholder funds of Rs 72,000 crore and a net worth of Rs 7,200 crore for one stated year. Nowhere in that record is there a margin available or a margin required, and neither can be derived from the two figures that do exist.

So there are two honest routes and one dishonest one. The honest routes are to find the two quantities or to say plainly that they are not here. The dishonest route is to build the ratio from whatever is to hand, and it is dishonest in a specific and dangerous way. An invented denominator produces a ratio that looks exactly like a real one, and a ratio of that kind is the worst sort of wrong number. Nothing about it announces itself to anybody reading it later.

A wrong number with an obvious tell gets caught. A number carrying a decimal point, a sensible magnitude and a familiar name gets copied into the next document. The reason therefore stands where the ratio would have been.

The lesson is worth more than the ratio would have been: where both quantities cannot be found in a disclosureWhat an institution is required to publish about its own position, and how often. What has to appear, and at what interval, is a matter for the authority named below rather than for the institution., this ratio cannot be computed either, and the right move is to go and find them rather than to build something that resembles them.

What can be worked from what the insurer actually publishes?

Refusing the ratio does not mean refusing to work. Chandrika Life Insurance Limited holds policyholder funds of Rs 72,000 crore against a net worth of Rs 7,200 crore for one stated year, and those two figures divide.

The per hundred version is what sticks, so do the division slowly. Divide Rs 72,000 crore by Rs 7,200 crore and the answer is exactly 10.0 times. Now turn it round. For every Rs 100.00/- of policyholder money the insurer is holding, Rs 10.00/- of its own capital sits behind it, and the other Rs 90.00/- in that hundred is a claim somebody else holds on the future rather than anything of the insurer's own.

Now name the measure honestly. The 10.0 times is a plain cover measure: two recorded figures divided, with the base printed in the same sentence. The cover measure is not the solvency ratio and it is not a stand-in for one. The division takes no view whatever on how long the obligations run, how uncertain the amounts are, or how much has been passed to a reinsurer as ceded riskThe part of what has been promised that another insurer has agreed to carry. Passing it on creates a claim on that other insurer; it does not delete the promise to the policyholder., and those three things are precisely what a required margin exists to capture.

Why does the length of the obligation decide the answer more than the size?

Hold the two insurers from that question in view. Identical policyholder funds, identical capital, so the cover measure reads the same at both and a reader working from published figures alone sees one number twice. Then look at what each of them has promised.

The first owes an amount that may fall due in forty years, under a contract whose price was fixed when it was written and cannot be reset. Forty years of investment returns, forty years of costs, forty years of anything at all, and the premium was agreed at the start. Such a promise is a long-tail obligationAn amount that may fall due many years after the premium for it was taken. The tail is the stretch of time between the money coming in and the money going out., and the insurer carries every one of those forty years.

The second owes an amount falling due inside the year, under cover that is priced again at the end of it. If the estimate was wrong, the estimate gets corrected in twelve months and the correction is charged. The first insurer has no such door.

The two insurers are not in the same position, and a plain cover measure cannot tell them apart. A measure struck on a computed requirement exists for exactly that reason. The sequence has been building to this sentence: the obligation outlives the premium, and a capital test that ignores how far it outlives it is measuring the wrong thing. The simple version will not do, and the reason above is the whole of the answer.

What does a falling solvency ratio actually indicate?

A ratio can fall from the top or from the bottom, and here the two mean opposite things while producing the same arithmetic. Take them one at a time. Reading the direction and stopping is the most common way to be wrong about an insurer without saying anything factually incorrect.

The margin available falls when what the insurer holds is worth less, or when what it owes policyholders is valued at more. Either of those pulls the numerator down and the ratio with it. A fall of that kind is what most readers assume they are looking at.

The requirement is computed from the book, so the margin required rises when the insurer writes more business and the book gets bigger. A falling ratio at an insurer writing a great deal of new business and a falling ratio at an insurer in run-offThe state of a book that has stopped being sold but is still paying claims on what was already written. Nothing new comes in; the old obligations run down over time. are different events with the same arithmetic. One is growth pressing on capital; the other is not growth at all.

The consequence if the margin available falls towards the margin required, and the party who acts on it, belong to IRDAI at irdai.gov.in, named in the rows below and filled in in none of them. The reading discipline is the part that transfers: separate the limbs before interpreting the direction, and where they cannot be separated from what has been published, record that they could not be.

Who sets the requirement, who computes it and who acts on it?

Three parties, and keeping them apart is most of what a reader needs. The authority sets the method and the level. The insurer computes its own position against that method, with professional sign-off. The authority acts on what it sees. Nobody in that sequence is choosing a base or arguing about a denominator, and the absence of choice is precisely why the measure is worth having and why it cannot be reconstructed from outside.

A capital test carries more empty rows than any other measure in this sequence for one reason: a capital test is nothing but requirements. Every one of them is set by an authority and every one of them shifts, so a value written out here would stop matching the rule the moment the rule moved. The International Association of Insurance Supervisors at iaisweb.org is the origin of an international framework for measuring insurer capital, and what applies in India is IRDAI's own.