M&A advisers reviewing transaction documents representing professional indemnity insurance for merger and acquisition advisory work

M&A Advisor Professional Indemnity Insurance

PI for M&A advisers and merger and acquisition consultants - covering due diligence, valuations, financial modelling and information memorandum risk, at the deal-size limits transactions demand.

M&A Advisory

Our Focus

$5M-$20M

Deal Limits

Specialist

Markets

Recognition

Industry Awards

THE SHORT ANSWER

What does M&A advisor PI insurance do?

M&A advisor Professional Indemnity responds when a buyer, seller or other party alleges your transaction advice - origination, valuation, modelling, due diligence or the information memorandum - was negligent and caused a financial loss. It is cover for the adviser's work, not the deal's warranties, and the limits are usually set by the size of the transaction.

Most M&A advisers come to us when a mandate or counterparty sets a limit their current cover cannot meet, or when a generalist insurer excludes the M&A activity.

For
M&A / merger advisers
Limits
Often $5M-$20M
Placed via
Specialist PI markets
M&A advisory team at a transaction table representing the difference between advisor PI and warranty and indemnity insurance

W&I VS ADVISOR PI

Two different covers on the same deal

Searches for 'M&A insurance' often mean warranty and indemnity cover, which sits on the transaction. M&A advisor PI sits on you. On most deals both can be in play, but they respond to very different things.

Your Professional Indemnity

Advisor PI

Responds to allegations that your professional work as the adviser - the valuation, model, due diligence or information memorandum - was negligent and caused a client a financial loss. This is the cover this page is about.

VS

Warranty & Indemnity (W&I)

Transaction Liability

Sits on the deal and responds to a breach of the representations and warranties the seller gives the buyer. It is a transaction risk product, arranged for the parties to the deal - not cover for the adviser's professional work.

POLICY SCOPE

What M&A Advisor PI Insurance Covers

Professional Indemnity for M&A advisers covers claims arising from your advisory work on a transaction. This is insurance for advisers - not financial or legal advice from Tank.

M&A advisers reviewing a transaction representing M&A advisor PI coverage
M&A advisers reviewing a transaction representing M&A advisor PI coverage

Usually Covered

Negligent advice on origination, structuring or deal execution
Errors in valuations or financial models relied on by the parties
Alleged misstatements or omissions in an information memorandum
Mistakes in due diligence support or transaction documentation
Breach of professional duty in your advisory work
Defence costs for investigations and disputes, including unproven claims

Not Typically Covered

Intentional wrongdoing or fraud
The commercial outcome or success of the deal itself
Breach of the seller's warranties (W&I cover responds to this)
Known claims or circumstances not disclosed to the insurer
Fines or penalties
Liabilities of other advisers engaged on the transaction

This is a general guide only. What is and isn't covered depends on the terms, conditions, limits and exclusions of your specific policy.

WHERE THE EXPOSURE SITS

What an M&A adviser actually gets sued over

When a transaction underperforms, the parties look back at the advice. The allegation is rarely about the outcome itself - it is about whether the work behind it was done with reasonable care. These are the exposures underwriters focus on.

Common Allegations

The work behind the deal

  • An error in a valuation or financial model relied on by a buyer or seller
  • An alleged misstatement or omission in an information memorandum
  • A gap in due diligence that a party says it relied on
  • Advice on structuring or terms said to have caused a loss

What Underwriters Weigh

How the risk is assessed

  • The size of the transactions you advise on, not your fee income
  • The mix of advisory work and how reliance is documented
  • Your engagement terms, scope and liability caps
  • Your experience, process and claims history

The deal sets the limit. See high-limit and contract-required PI for how we size and place it.

REAL PLACEMENTS

M&A advisory PI we've placed

Anonymised examples from our book - M&A and corporate advisory risks that generalist insurers stepped back from, placed through specialist markets. Premiums are rounded and indicative.

Premiums and outcomes described are specific to each client and indicative only. Your own terms will depend on your circumstances and the insurer.

QUESTIONS

M&A Advisor PI - Frequently Asked Questions

M&A advisor Professional Indemnity insurance covers the advice and work an M&A or merger and acquisition adviser provides on a transaction - origination, valuations, financial modelling, due diligence support, the information memorandum and deal execution. It responds when a buyer, seller or other party alleges your professional work was negligent and caused them a financial loss, and it funds the legal cost of defending that allegation, including claims that are ultimately unproven.
No, and the distinction matters. 'M&A insurance' usually means warranty and indemnity (W&I) or transaction liability cover, which sits on the deal and responds to a breach of the representations and warranties the seller gives the buyer. Professional Indemnity sits on you, the adviser, and responds to allegations that your advice or work was negligent. This page is about the adviser's PI. See our corporate advisor PI hub for the full comparison.
The limit is driven by the size of the transactions you advise on, not your fee income. A single error on a deal can flow into a loss many times your engagement fee, so M&A advisory PI limits sit high - commonly $5M, $10M or $20M. Counterparties, lenders and engagement mandates often specify the exact limit you must hold to act. See our guide to high-limit and contract-required PI.
PI responds to negligence in your professional work. It does not insure the commercial outcome of the deal itself, it does not respond to fraud or intentional wrongdoing, and it does not pick up the warranties given by a seller (that is what W&I cover is for). Known claims or circumstances you have not disclosed to the insurer are also excluded. We review your scope so the wording responds to the work you actually do on a transaction.
Often, yes. M&A and corporate advisory work sits outside the appetite of most generalist PI insurers, so generalist markets frequently step back or exclude the M&A activity. That reflects one market's appetite, not the whole market. We map the specialist financial-lines underwriters who actively write this class and present the submission the way they need to see it. See declined and hard-to-place PI.
Typically your advisory activities and the split between them, your fee income, the size of the largest transaction you advise on, your claims and circumstances history, your current insurer and limit, the retroactive date you need to preserve, any AFSL or authorised-representative status, and the limit your mandate or counterparty requires. Having this ready lets us approach the specialist market quickly when a deadline is close.

PI Insurance for M&A Advisers

From a single mandate to ongoing advisory work, we arrange Professional Indemnity that matches your scope and the deal-size limits your transactions and counterparties require.

Last updated: 20/06/2026

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