The commercial umbrella, when primary, is subject to a deductible known as:

The terminology "self-insured retention" refers to the portion of a loss that the insured must pay before the umbrella policy provides coverage. In the context of a commercial umbrella insurance policy, when it is considered the primary layer of coverage, this deductible is the amount that the policyholder must cover on their own before the insurer steps in to pay for additional costs that exceed this amount.

It's important to understand that this self-insured retention functions similarly to a deductible in a standard insurance policy, but specifically refers to the retained risk that the policyholder must manage. This means that the insured is essentially "self-insuring" for this designated amount, which could lead to significant out-of-pocket costs if a claim arises that falls within this retention limit.

In this case, other terms like "loss retention" or "deductible retention" are not standard industry terminology and may lead to confusion. "Umbrella retention" might be understood in a similar vein but lacks the specificity and widely accepted understanding that "self-insured retention" conveys in the context of insurance coverage. Thus, using the precise term clarifies the nature of the deductible that applies when the commercial umbrella is the primary coverage layer.