Dr Abhijit K.  Chattoraj

In my last article published in January under the caption  ‘The Legal and Technical Craft of Drafting a Letter of Subrogation’, I explained how the Constitution Bench of the Supreme Court classified subrogations under three broad categories: (i) subrogation by equitable assignment; (ii) subrogation by contract; and (iii) subrogation-cum- assignment. Interestingly, the  Subrogation-cum- Assignment allows the insurer to retain the entire amount recovered, even if it exceeds what it has paid to the insured.

Traditionally, the principle of subrogation has its roots in the principle of indemnity, which disallows a person from recovering the same amount of losses from more than two sources, thereby preventing a profit from the damage to their property. There are several reasons to invoke the principle of subrogation. The one mentioned above is the most important reason. The second reason is that the wrongdoer should not be allowed to go scot-free. He/she should recompense the losses of the aggrieved for his negligence, other than no-fault liability.  The third reason is that subrogation recoveries can smooth the rate-making process.

There are several corollaries of thepriciple of subrogation. One such corollary is that, by exercising its subrogation rights, the insurer can recover an amount equivalent to the amount it paid under the contract of insurance. Subrogation means the transfer of the insured’s rights and remedies to the insurer to recover losses from the wrongdoer to the extent of the claim paid.  In this context, the difference between the legal rights accruing to subrogation under section 79 and abandonment under section 63(1) of the Marine Insurance Act 1906 is interesting to note. The rights of subrogation arise from all contracts of indemnity, including contracts covering partial as well as total losses. However, it gives the right of recovery, not the proprietary (ownership) right.

On the other hand, abandonment gives the insurer the right to take over a proprietary interest in the subject matter upon payment of the total loss. Upon acceptance of abandonment and payment of the total loss, the insurer may realise on the property more than it has paid and retain the entire proceeds. Under subrogation, the insurer, upon payment of a loss, is entitled to sue the third party in the insured’s Name. As for recoveries, it cannot retain anything beyond the amount of the claim paid under the policy.

In a Subrogation by Equitable Assignment, the insurer can recover any amount that remains after the insured’s claim is fully settled.

Take a hypothetical example. A building was insured for Rs 8lac. A fire gutted the entire building. It was a case of total loss. During the claim assessment, it was observed that the building’s value was Rs 10 lac. There was a deductible of Rs 20,000/-. The insurer would pay 7.8 lac after applying the law of averages clause and deducting the deductible. The insurer received a subrogation letter from the insured and filed a case on the insured’s behalf against the architect responsible for the loss caused by faulty design. The court allowed Rs 6 lac. Rs 1 lac was spent on meeting legal expenses. How will this amount be shared between the insured and the insurer in the absence of any specific provision regarding the sharing?

Now the question arises: what actual loss did the insured suffer, and how much did he recover from the insurer? And how can the insurer recover any amount that remains after the insured’s claim is fully settled?

The insurer’s actual loss was Rs 10 lac/-; he received Rs 7.8 lac. If he gets 2.2 lac, he can recoup his entire loss. Kindly remember that had he insured his building for Rs 10 lac, he would have received the whole amount. It is because of the average clause that he gets 8 lac. Insurance is just one way of mitigating loss. The right to recover the loss actually vests in the insured, who transfers it after his claim is settled. The insured should not be allowed to make a profit; therefore, he should not be allowed to recover more than his losses.

The moot question is: Can the insured recover Rs 2.2 lac (Rs 2 lac loss on account of underinsurance and Rs .20 lac towards deductible or excess)?  and hand over Rs. 2.8 lac to the insurer (the insured was left with Rs. 5 lac after meeting the legal expenses)?

There was no clear answer to the above query until Napier v. Hunter (1993). The insured could have recovered both losses – the underinsurance loss and the excess loss. But the judgment in Napier v. Hunter (1993) clarified this position.

Facts of Lord Napier and Ettrick v Hunter [1993] AC 713

There were three parties involved. The appellants were a syndicate of “Names” at Lloyd’s of London (individual underwriters). The respondent was ‘The stop-loss insurers’  of those Names and syndicate managing agent, Outhwaite, a third party responsible for arranging reinsurance.

The Syndicate of Names underwrote certain insurance policies relating to asbestos claims in 1992. A significant number of substantial claims involving substantial sums of money were made under these policies. Outhwaite’s inadequate reinsurance cover for those risks magnified the losses.

As prudent underwriters, each Name safeguarded its underwriting loss by arranging stop-loss insurance. The stop-loss policies, as they worked, covered losses above a fixed excess and were subject to an overall policy limit. As per the arrangement, each Name brooked the first layer of loss (excess), stop-loss insurers indemnified for the middle layer, and the Name bore any loss above the limit itself.

Negligent Reinsurer paid – in a separate cause of action,  The Names prosecuted Outhwaite, alleging negligence in failing to secure proper reinsurance. Outhwaite paid £116 million to the Names.

Payment by stop-loss insurers and the dispute that followed – In addition to the recoveries from the erring reinsurer, the Names were also paid by the stop-loss insurers under the stop-loss policies.

The stop-loss insurers exercised their right of subrogation. The dispute was not whether subrogation existed, but how much the insurers were entitled to.

In the lead judgment, Lord Templeman explained the distribution of quantum with a hypothetical set of figures. He assumed in each case that each of the Names had suffered a net underwriting loss for the year of £160,000. He also assumed that they had stop-loss insurance for a total of £100,000, subject to an excess of £25,000.

It is therefore evident that each Name would have to pay out £25,000 of their own before the stop-loss insurance sets in. So, of the total loss, the first £25,000 is Name’s responsibility. The “next” £100,000 was covered by the stop-loss insurers. And the “last” £35,000 was again borne by Names, as by then the insurance cover had exhausted.

Lord Templeman also presumed that the hypothetical amount which each Name recovered from Outhwaite was £130,000. So the question was: how much of that £130,000 would the stop loss insurers be subrogated to?

Lord Templeman in his lead judgment. held that subrogation must be explained by reference to insurance layers, not by the insured’s overall net loss. Where the insured, by way of a contract, agrees to bear an excess, they become a co-insurer for that layer and are not allowed to use third-party recoveries to recoup it first.

Lord Templeman explained “ the best way to analyse the loss was to imagine three different policies of insurance covering the total amount of the loss: the first for up to £25,000; the second for anything above £25,000 up to £125,000; and the third for anything above £125,000 up to £160,000.” Thus, if an insured suffers a £160,000 loss with a £25,000 excess and £100,000 stop-loss cover, and later recovers £130,000 from the wrongdoer, the recovery is applied top-down: £35,000 goes to the insured (the uninsured upper layer), £95,000 goes to the insurer (the insured layer), and nothing is applied to the excess which the insured agreed to bear. It is clear here that the insured can’t recover the excess amount of  £25,000

Equitable lien

The House of Lords protected an insurer’s right of subrogation by an equitable lien over the proceeds of the insured’s claim against the third party. Concerns abound over whether insurers could recover under a stop-loss policy if the court did not impose an equitable lien. An equitable lien is a right recognised by equity or fairness that requires it to be shared fairly, without enriching anyone unfairly.

Equity, therefore, considers the recovery aligned to proprietary charge in favour of the insurer to the extent of its subrogated interest, preventing the insured from retaining or wasting that portion of the recovery, particularly in cases of insolvency. This decision firmly recognised that subrogation is an equitable principle, not merely a contractual inference, and that equity will intervene to prevent unjust enrichment and double recovery while respecting the contractual apportionment of risk between insurer and insured.

In the context of the case referred to above, the stop-loss insurer pays the insured (in this case, Lloyd’s Name) for part of a loss.  In a separate case, later, the insured recovers damages from a negligent third party- the reinsurer here. If left unattended, the insured could retain the full amount recovered, and the insurer might never recover its subrogated share, especially if the insured becomes insolvent.

Effect of the Lord Napier v Hunter judgement on an average clause or under-insurance

The above judgment didn’t directly address underinsurance or the average clause, but the underlying core principle establishes that subrogation follows the allocation of risk under the insurance contract. Any part of the loss that the insured has agreed to, or is deemed to, bear under a contractual obligation will be treated as self-insurance/co-insurance, and the insurer cannot be subrogated to that portion.

Author’s Insight –

The Napier V. Hunter judgment is cited in many decisions. But the House of Lords gave insurers a proprietary right (an equitable lien) even though the insurers had merely paid under a contract and had not bargained for any security. By granting proprietary rights, there is a strong chance that other unsecured creditors of the insured will receive less, disturbing the pari passu principle. Paying a claim is a contractual obligation; An excess is a deliberate risk retention, compensated by a premium discount. Underinsurance similarly penalises the insured through average. In neither case does recovery from the wrongdoer create enrichment or duplicate indemnity. The insured is not seeking payment from the insurer for these amounts, only restitution from the tortfeasor. Treating the insured as a “co-insurer” does not justify diverting such recoveries to the insurer.

Critically, subrogation operates only after the insured is fully indemnified for his actual loss. Policy limits, excess, and underinsurance restrict the insurer’s liability; they do not reduce the insured’s loss.

It may be noted here that the insurer must pay a legitimate claim even when the subrogation right is not protected. Insurance is just one way the insured can mitigate risk. He will definitely look into other resources to mitigate his losses. Subrogation is his legal right and remedy of recovery against the negligent wrongdoer to the extent of his actual loss. Any amount over and above his actual loss should be paid to the insurer, to the extent of the loss it has paid.

I leave it here, looking forward to your valued suggestions.

Authored by:

Dr Abhijit K. Chattoraj – Chartered Insurer

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This entry is part 3 of 24 in the series February 2026-Insurance Times