Aon Client Treaty Expands to 35% Co-insurance for 2027

What happened

Aon renewed its Aon Client Treaty, raising co-insurance for eligible business placed through its Global Broking Centre and facultative reinsurance from 28.5% for 2026 to 35% from 1 January 2027. Where local law allows and eligibility rules are met, the 1.5% ACT Client Dividend will apply to the larger share.

Confirmed

Global impact / market context

The expanded share could let eligible clients place more of their risks through this facility, while the 1.5% dividend applies to a larger portion of each eligible placement. For Aon, greater capacity may support client retention and reinforce its risk-placement business, though the article gives no revenue or profit estimate.

Analyst inference

The treaty is led by QBE and backed by Lloyd’s syndicates, with support from market partners described as matching growing client demand for committed capacity. The higher co-insurance share signals an expanded arrangement for 2027, but the article does not quantify its financial effect on Aon or its partners.

Confirmed

What to watch

1. From 1 January 2027, check whether the 35% co-insurance applies as announced to eligible Global Broking Centre placements and Aon facultative reinsurance business. Confirmed
2. Check how local legal and regulatory limits, along with eligibility rules, shape which placements receive the 1.5% ACT Client Dividend on the larger share. Confirmed
3. Watch for any later disclosure of client uptake or financial results; these would show whether expanded capacity translates into stronger revenue or profit for Aon. Analyst inference

Evidence

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