Aon warns 2027 will bring steep rise in employer health premiums, highlighting data gaps for public-sector plans

Aon’s chief actuary warned that 2026 data points to a harsh 2027 for employer-sponsored health insurance premiums, with costs expected to rise sharply.

The firm said employers will need better data and deeper insights to pinpoint where expenses are increasing, a call that comes as Aon has faced criticism for limiting data access to its clients.

The warning especially affects public-sector health plans, which traditionally rely on stable benefits, and could pressure government employers and unions as they negotiate coverage in the coming years.