Projected employer benefit costs are a stark contrast to the expected premium increases and out-of-pocket costs on the Obamacare exchanges next year. Employer-sponsored premium increases are expected to be about half of what has been proposed on individual exchanges for next year. Net deductibles are expected to be, on average, about one-third of those on exchange plans.

The difference could be explained in part by the relative age of the different marketplaces. While insurers are still adjusting to the relatively new Obamacare exchanges, the employer-based marketplace has many more years of experience to help keep costs stable. The employer market also likely has a better mix of sick and healthy people, helping keep costs down, on average.

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