FoundationsApplied

Subrogation

Q: When can an insurer normally begin a subrogation action against a third party?

Only after it has indemnified its own insured for the loss — Subrogation is a right acquired by payment — the insurer steps into the insured's legal shoes only once it has made the insured whole.

Q: If a reinsurer paid 60% of a claim, what share of a later subrogation recovery would it normally expect?

60%, matching its share of the original loss — Recoveries are shared in the same proportion as the original loss was shared, so a reinsurer that paid 60% of the loss gets 60% of what is recovered back.

Stepping into the insured's shoes

The insurer's right, once it pays a claim, to step into the insured's shoes and recover from whoever actually caused the loss.

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Definition

Subrogation is the legal right an insurer — and by extension its reinsurers — acquires to pursue a third party responsible for a loss, once it has indemnified its own insured for that loss. It prevents the insured from recovering twice, once from its own policy and again from the at-fault party, and lets the carrier that ultimately paid recoup some or all of the loss from wherever fault actually lies. Reinsurers normally share in a subrogation recovery in the same proportion as they shared in the original loss.

The insurer can only subrogate after it has paid the claim — it steps into the insured's legal position, no more and no less.
A subrogation recovery reduces the net loss retroactively, and any reinsurers that paid a share of the original claim normally get their proportional share of the recovery back.
A policy can waive subrogation rights against a specific party, which removes a recovery source reinsurers might otherwise expect.

Worked example

A commercial property insurer pays a $4M fire claim after a contractor's faulty wiring caused the blaze. The insurer then subrogates against the contractor's own liability insurer and recovers $2.5M, which flows back through the reinsurance programme in the same shares the original loss was ceded.

Scenario · figures in USD

A subrogation recovery flows back through the tower

Cascade Mutual pays a $6M claim after a delivery-truck collision destroys a client's warehouse. Cascade's excess-of-loss layer responded above its retention. Cascade then subrogates against the trucking company's insurer.

Original gross loss paid to the insured	$6M
Cascade's retention	$2M
Reinsurance recovery on the original loss	$4M
Subrogation recovery from the trucking company's insurer	$3.6M
Reinsurer's two-thirds share of the recovery	$2.4M
Cascade's one-third share of the recovery	$1.2M

So whatSubrogation recoveries are shared in the same ratio as the original loss — the reinsurer that paid two-thirds of the claim gets two-thirds of the money back.

Check your understanding

When can an insurer normally begin a subrogation action against a third party?

Only after it has indemnified its own insured for the loss. Subrogation is a right acquired by payment — the insurer steps into the insured's legal shoes only once it has made the insured whole.

If a reinsurer paid 60% of a claim, what share of a later subrogation recovery would it normally expect?

60%, matching its share of the original loss. Recoveries are shared in the same proportion as the original loss was shared, so a reinsurer that paid 60% of the loss gets 60% of what is recovered back.

Word problem

An insurer pays a $10M claim, of which its reinsurers funded $7M through a layer above the insurer's $3M retention. A subrogation action against the party at fault later recovers $5M. How much of that $5M goes back to the reinsurers, and how much stays with the insurer?

Show a hint

Split the recovery in the same ratio the original $10M loss was split between retention and reinsurance.

Reveal the worked answer

The original loss was split $3M retained / $7M reinsured — a 30% / 70% ratio.
The $5M subrogation recovery is shared in that same ratio.
Insurer's share: 30% of $5M = $1.5M.
Reinsurers' share: 70% of $5M = $3.5M.

The reinsurers receive $3.5M and the insurer keeps $1.5M — the recovery is split in the same 30/70 ratio as the original loss, not in whatever proportion either party might prefer after the fact.