What is nose coverage and how does it differ from tail coverage?

Nose and tail coverage are two solutions to the same problem: ensuring continuous claims-made coverage when switching carriers or ending a policy. Understanding the difference is crucial when changing malpractice carriers.

Tail coverage, formally called an Extended Reporting Period (ERP), is an endorsement purchased from your departing carrier. It extends the period during which you can report claims on the expired policy. A tail policy does not provide new coverage — it simply keeps the reporting window open for claims arising from work performed during the policy period. Tail coverage typically costs 150% to 225% of your last annual premium for an unlimited reporting period.

Nose coverage, also called prior acts coverage, is the opposite approach. Instead of extending reporting on your old policy, you ask your new carrier to provide retroactive coverage for work performed before the new policy's inception date. This is accomplished by setting a retroactive date on your new policy that matches or predates the retroactive date on your old policy.

The practical difference is who pays the claim. With tail coverage, your old carrier handles claims from pre-switch work. With nose coverage, your new carrier takes on that responsibility. Most new carriers will provide prior acts coverage with a matching retroactive date as a standard practice when you switch to them, essentially offering nose coverage at no additional cost.

The risk with nose coverage is that your new carrier is accepting liability for work they did not underwrite. If they later discover adverse information about your prior claims history, they may attempt to rescind the prior acts coverage. Tail coverage from your original carrier is generally considered more secure because that carrier already underwrote and accepted the risk.

When switching carriers, your broker should compare the cost and terms of purchasing tail from your old carrier versus securing prior acts (nose) coverage from your new carrier. In most transitions, nose coverage from the new carrier is the more cost-effective approach, but the decision should account for the relative financial stability of both carriers and the specific policy terms.