The Answer in 60 Seconds

Subrogation is the process by which an insurer, having indemnified the SME for a loss, steps into the SME's rights and pursues recovery against any third party legally responsible for the loss. The principle is codified for marine insurance in section 79 of the Marine Insurance Act 1906 and is implied by law into indemnity insurance contracts generally, including non-marine covers, subject to what the policy wording says. A Singapore High Court decision on subrogation is Sompo Insurance Singapore Pte Ltd v Royal & Sun Alliance Insurance plc [2021] SGHC 152, in which RSA, a cargo insurer that had paid its insured's loss, was held entitled by subrogation to call on a performance bond that Sompo had issued to the insured. The SME's role in subrogation is largely passive - cooperate with the insurer's recovery action, preserve relevant evidence, and avoid waiving rights against third parties that would prejudice the insurer's recovery. This article sets out how subrogation operates, the SME's obligations, and the practical implications for vendor and customer contracts where subrogation rights may have been waived.

The Sourced Detail

Subrogation is one of the structural pillars of insurance, ensuring that:

  • The SME is not under-indemnified (the SME recovers what was lost).
  • The SME is not over-indemnified (the SME does not recover twice - once from the insurer and once from the responsible third party).
  • The responsible third party is not let off (the loss falls on the party legally responsible).

The principle has a long common-law pedigree - foundational English cases like Castellain v Preston (1883) - and operates in Singapore as a rule of the general law for indemnity insurance, recognised for marine insurance by statute, alongside the policy's own wording.

The statutory route - Marine Insurance Act 1906

Section 79 of the Marine Insurance Act 1906 codifies subrogation for marine insurance: where the insurer pays for a total loss, the insurer is entitled to take over the interest of the insured in whatever may remain of the subject-matter so paid for; and the insurer is subrogated to all the rights and remedies of the insured in respect of the subject-matter from the time of the casualty causing the loss.

Section 79 is not the whole of the law: the same doctrine is implied by the common law into indemnity insurance contracts generally, including non-marine covers, and a policy can expressly exclude or limit it.

The policy-wording route

Standard Singapore non-life commercial policies include a subrogation clause that:

  • Vests in the insurer the right to take action in the SME's name to recover from any responsible third party.
  • Requires the SME to cooperate with the insurer's recovery action.
  • May restrict the SME from waiving rights against third parties; some standard subrogation conditions do not mention waivers, so check the wording.
  • May set how any recovery is shared between the insurer and the SME; where it does not, the general law sets the order.

A Singapore decision on subrogation

The Singapore High Court considered subrogation in Sompo Insurance Singapore Pte Ltd v Royal & Sun Alliance Insurance plc [2021] SGHC 152. RSA, a marine cargo insurer that had paid the Government's loss, called on a performance bond that Sompo had issued to the Government under the carrier's contract. The court held that an insurer's subrogation extends to the insured's rights on a contract that concerns the subject-matter of the insured loss, even one given by someone other than the person responsible for the loss, and dismissed Sompo's appeal.

Other Singapore authority on subrogation principles includes the older line of cases applying the common-law framework.

Where subrogation matters operationally

Three operational scenarios where subrogation engagement is critical.

Scenario 1: Fire caused by a contractor's negligence. A contractor working on the SME's premises causes a fire through negligent welding. The SME's property insurer pays the property loss. The insurer then exercises subrogation against the contractor (and the contractor's PL insurer). The SME's role is to preserve the evidence (the contractor's identity, the work-order documentation, the cause-of-fire investigation) for the insurer's recovery action.

Scenario 2: Customer injury caused by a supplier's defective product. A customer is injured by a product the SME supplied; the SME's product-liability cover pays the customer's claim; the insurer subrogates against the product manufacturer.

Scenario 3: Cyber loss caused by a vendor's breach. A vendor's data breach exposes the SME's customer data; the SME's cyber cover pays the response and notification costs; the cyber insurer subrogates against the vendor.

In each scenario, the SME's evidence preservation, contract documentation, and cooperation with the insurer's recovery action determine the success of the subrogation.

The "waiver of subrogation" issue

A standard commercial contract may include a "waiver of subrogation" clause - the SME agrees that, in the event of a loss caused by the counterparty, the SME's insurer waives its subrogation rights against the counterparty.

Waivers of subrogation can appear in:

  • Lease agreements: some require the tenant's insurance to include a waiver of subrogation against the landlord.
  • Construction contracts: some require insurance in the parties' joint names; the PSSCOC for public construction works requires the works to be insured in the joint names of the Employer and the Contractor (cl 28.1) but contains no express waiver of subrogation.
  • Customer contracts - sometimes negotiated by larger customers.
  • Vendor contracts - sometimes negotiated by larger vendors.

The insurer is subrogated to the SME's own rights, so a right the SME has given up is not there for the insurer to pursue, and an SME that prejudices the insurer's subrogation rights can be accountable to the insurer. Whether the policy allows a waiver agreed before a loss depends on its wording, so the insurer should be on notice of any material waiver.

Three practical implications:

  • Read the policy's position on waivers before signing any contract with a waiver clause.
  • Notify the insurer of material waivers (typically with the next renewal or sooner if material).
  • Maintain a register of contracts containing waivers, in the seven-folder structure.

The deductible question

Where the insurer recovers from a third party, the general law sets the order in which the recovery is shared between the insurer and the SME unless the policy wording varies it; under the English case Lord Napier and Ettrick v Hunter [1993] AC 713, the SME is treated as its own insurer for the deductible.

A subrogation recovery may not always include the SME's deductible. The policy wording can vary the order the general law sets, so check how it treats the deductible portion of any recovery.

The "made whole" principle

Castellain v Preston (1883) states that the insured is to be fully indemnified but never more than fully indemnified. How a recovery is shared where the insurer paid less than the SME's full loss because of a sub-limit or policy limit depends on the facts and the wording; for the deductible, the SME is treated as its own insurer (Lord Napier and Ettrick v Hunter [1993] AC 713).

The "made whole" principle interacts with the policy's subrogation clause; the general law sets a default allocation that the policy wording can vary.

The SME's obligations

The SME's obligations under a subrogation clause typically include:

  1. Cooperate fully with the insurer's recovery action - provide documents, witnesses, and statements.
  2. Preserve evidence of the loss and of the responsible third party's involvement.
  3. Not prejudice the insurer's recovery rights by waiving claims against third parties without consent.
  4. Account for any direct recovery from a responsible third party (the recovery may need to be paid over to the insurer).
  5. Continue any limitation-period preservation action (writs, demand letters) to prevent the claim against the third party from being time-barred.

When subrogation does not engage

Subrogation does not engage in three scenarios:

  • Loss caused entirely by the SME - no responsible third party.
  • Loss caused by a co-insured under the same policy - the insurer typically cannot pursue its own insured.
  • Loss subject to a waiver of subrogation that the insurer is bound by.

In each case, the insurer's payment is the SME's total recovery; the matter ends there.

Common Mistakes / What Goes Wrong

  1. Signing contracts with waivers of subrogation without checking the policy position.

  2. No notification to insurer of material waivers.

  3. Direct settlement with a responsible third party without insurer consent. May prejudice the insurer's position.

  4. Evidence not preserved for the insurer's recovery action.

  5. Not maintaining the limitation-period clock on the third-party claim.

  6. Misunderstanding the "made whole" principle. The SME's residual loss may be entitled to first claim on a recovery.

  7. No register of contracts with waivers. Unknown waivers may surface at claim time.

  8. Deductible recovery position not understood. The general law sets a default that the wording can vary.

  9. Subrogation declaration delayed to insurer.

  10. No coordination between the SME's solicitors and the insurer's in any direct litigation.

What This Means for Your Business

  1. Read every commercial contract for waiver-of-subrogation clauses before signing.

  2. Notify the insurer of any material waiver, ideally at policy renewal.

  3. Maintain a register of contracts containing waivers in the seven-folder structure.

  4. Preserve evidence of any loss and of the responsible third party's involvement.

  5. Cooperate fully with the insurer's recovery action.

  6. Do not settle directly with a responsible third party without insurer consent.

  7. Understand the "made whole" principle for your specific policy wording.

  8. Coordinate solicitor engagement between SME and insurer where the SME has direct counsel.

Questions to Ask Your Adviser

  1. For our current policies, what is the subrogation clause's position on waivers?
  2. What is the "made whole" position - if a recovery is obtained, how does it flow between us and the insurer?
  3. For our recent lease and supplier contracts, do they contain waivers of subrogation, and have they been notified?
  4. If we suffer a loss that may have a third-party cause, what is the insurer's recovery support model?
  5. For our deductible, does it form part of a subrogation recovery?

Related Information

Published 22 May 2026. Source verified 22 May 2026.