Tail coverage extends your reporting window after a claims made policy ends. You need it when you stop carrying claims made coverage entirely: retirement, a sale, or a move where nobody picks up your prior acts. If you are simply changing carriers, ask for full prior acts instead. Who this is for: Consulting firms closing, selling, retiring, or being non-renewed.
The short version
- Tail is a one time purchase that lets you report claims after the policy ends.
- Expect 75 to 300 percent of your annual premium depending on the length.
- You do not need tail to change carriers if the new policy grants full prior acts.
- Negotiate a guaranteed right to buy tail with a capped cost when the policy is first placed.
- In a firm sale, who funds the tail belongs in the purchase agreement.
When you actually need it
- You are retiring or closing the consulting firm.
- You are selling the firm and the buyer is not assuming your liabilities.
- You are merging into another firm whose policy will not pick up your prior acts.
- You are moving to a job where someone else carries the coverage and you are dropping your own policy.
- A carrier non-renews you and no replacement will grant prior acts.
You do not need tail simply because you are switching carriers, as long as the new carrier grants full prior acts back to your original retroactive date. That is the cheaper path and it is available in most cases.
What it costs
| Tail length | Typical cost as a percentage of your expiring premium |
|---|---|
| 1 year | 75 to 100 percent |
| 2 years | 100 to 150 percent |
| 3 years | 125 to 200 percent |
| 5 years | 150 to 250 percent |
| Unlimited, where offered | 200 to 300 percent |
For a consulting firm paying $900 to $5,500 a year, a three year tail commonly lands in the $1,125 to $11,000 range as a one time premium. It is not refundable and it does not renew. You buy it once and the reporting window runs.
How long should the tail run?
Match it to the statute of limitations for professional negligence claims in the states where you work, which is commonly two to six years and sometimes longer where a discovery rule applies. For consulting firms, three years is the practical minimum and many firms buy longer where the exposure is long tailed.
Two details worth insisting on at purchase, years before you ever need the tail:
- The right to buy an extended reporting period should be guaranteed in the policy, not left to the carrier's discretion.
- The cost should be capped as a stated percentage in the policy, so the price is known before you are in a position where you must buy it.
Tail versus prior acts, in one sentence each
- Prior acts coverage picks up the past on a new policy, and normally costs nothing extra.
- Tail coverage extends the reporting window on an old policy after it ends, and costs a multiple of the annual premium.
The order matters: always ask about prior acts first, and treat tail as the fallback for when there is no new policy at all. Background reading on extended reporting periods.
What this looks like in practice
Illustrative example. Numbers are typical of claims we see and are not a promise of how any specific claim would be handled.
The setup: A consulting firm wound down operations and let the professional liability policy expire without buying an extended reporting period.
The claim: The matter started with a restructuring plan that assumed headcount reductions the client could not legally make. The client claimed $240,000 in severance and legal exposure it had been told to expect at half that.
The cost: $41,000 in defense costs and $120,000 in settlement, $161,000 in total, paid inside the policy limit after the retention.
The lesson: The claim arrived eight months after expiry, based on work done while the firm was fully insured, and there was no policy to report it to. A three year tail bought at wind down would have answered it.
Frequently asked questions
Q: What is tail coverage?
An extended reporting period on a claims made policy. It lets you report claims after the policy ends, as long as the work was done during the policy period and after your retroactive date.
Q: How much does tail coverage cost?
Typically 75 to 300 percent of your last annual premium as a one time charge, depending on the length. A three year tail is commonly around 125 to 200 percent.
Q: Do I need tail if I am just changing carriers?
Usually not. If the new carrier grants full prior acts back to your original retroactive date, your past work stays covered and you do not need to buy tail.
Q: How long should my tail run?
Long enough to cover the statute of limitations for professional claims where you work, commonly three years or more. Longer tails cost more but close the gap that matters.
Q: Who pays for tail when a firm is sold?
It is negotiable and it belongs in the purchase agreement. Buyers often want the seller to fund a tail so past liabilities do not travel with the deal. Decide it during diligence, not after closing.
Q: Can a carrier refuse to sell me tail?
It can if the policy does not guarantee the right. Look for a guaranteed extended reporting period with a stated cost cap when the policy is placed, not when you need it.
How Morrow helps consulting firms
Morrow is a licensed independent commercial insurance brokerage that specializes in management & business consultants. Deciding between tail coverage and prior acts is exactly the kind of question we answer every week, and because we place this coverage every day we know which carriers write it well, which forms are broad, and which contract language actually needs an endorsement behind it.
- We read the contract clause and tell you what your current policy already does and does not do.
- We market your account to carriers that have real appetite for consulting firms rather than whoever answers first.
- We issue certificates the same day a client asks, with the endorsements listed correctly.
- We stay on the file at renewal so limits, retroactive dates, and contract requirements do not quietly drift.
Get in touch and we will see how we can help. Tell us what you do, send over any contract that is driving the requirement, and send us the question and we will tell you where you stand. Start at morrowinsure.com or reach the team through the contact options on that page.
One more thing. This article is general information for consulting firms and is not legal advice, tax advice, or a statement of coverage. Policy wording controls in every case, and forms vary by carrier and by state. Have a licensed advisor review your own policy and your own contract before you rely on any of it.
Last updated: Reviewed by the Morrow commercial lines team. Last updated August 2026.