A letter of indemnity is a written contract in which one party promises to compensate another for specific losses, damages, or liabilities tied to a defined transaction or event. It shifts financial risk from the party being asked to act to the party asking for the action, and it shows up most often in shipping, mergers and acquisitions, replacement of lost financial documents, and construction. A well-drafted one names the parties, describes the triggering event, and puts limits on how much is owed and for how long. A poorly drafted one can leave the signer exposed without ceiling.
How a Letter of Indemnity Works
Two parties do the work. The indemnitor is the one promising to cover losses. The indemnitee is the one receiving that protection. On higher-stakes deals a third party, usually a bank or insurer, co-signs so the indemnitee has someone solvent to collect from if the indemnitor cannot pay.
The exchange is simple. The indemnitee agrees to do something it would otherwise refuse. In return, the indemnitor agrees to absorb any financial fallout. A shipping line releasing cargo without seeing the original bill of lading is the textbook case: the carrier takes a real risk, and the LOI from the receiver says, in effect, deliver now and we will cover any claim that surfaces later.
An LOI is not a guarantee. A guarantee is a secondary obligation, meaning the guarantor pays only after the primary debtor defaults. An LOI creates a direct, primary obligation. The indemnitor owes as soon as a covered loss occurs, independent of what any other party does.
Where Letters of Indemnity Are Used
Shipping and Cargo Release
This is the most common setting, and the one where LOIs carry the sharpest risk. When cargo arrives before the original bill of lading, the consignee provides an LOI asking the carrier to release the goods anyway and promising to indemnify against later claims.1Maersk. Letter of Indemnity Release of Cargo Without Presentation of the Original Bill of Lading Carriers accept these routinely, but the original bill of lading can still be traded after release. If the goods go to the wrong party, the legitimate holder can sue the carrier, and the carrier’s own insurance may not respond.2West of England P&I Club. Bills of Lading 2 – Letters of Indemnity Standard-form LOIs published by the International Group of P&I Clubs are widely used because carriers and their insurers recognize the format.
Lost Stock Certificates and Negotiable Instruments
When a stock certificate, bond, or similar document is lost, stolen, or destroyed, the issuer faces a problem: if it reissues, the original might still surface in someone else’s hands. An LOI from the holder resolves the risk. The SEC has published examples where the holder provides a lost stock affidavit together with an agreement to indemnify and hold harmless the company and any successor against losses arising from reliance on the holder’s representations.3U.S. Securities and Exchange Commission. Exhibit 16(a)(1)(iii) Lost Stock Affidavit
Construction
In construction, LOIs can protect the project owner against liens filed by subcontractors or suppliers who were not paid by the general contractor, with the general contractor promising to cover any lien-related costs. Similar LOIs appear around post-completion defect claims, where the contractor agrees to cover repair costs and related exposure.
Mergers and Acquisitions
Purchase agreements almost always contain indemnification provisions that operate like standalone LOIs. The seller typically indemnifies the buyer against losses from inaccurate representations, undisclosed liabilities, or breaches of the seller’s obligations. These are among the most heavily negotiated terms in any deal.
What a Letter of Indemnity Should Contain
Courts read these agreements strictly, and ambiguity narrows the indemnitor’s obligation rather than expanding it. A few elements decide whether the document actually does its job.
Parties and Scope
Identify the indemnitor, the indemnitee, and any third party by name and address. Describe the triggering event with real specificity. A shipping LOI should name the vessel, the bill of lading number, and the cargo being released. Define what categories of loss are covered and what is excluded.
Caps and Baskets
In higher-value deals, particularly M&A, indemnification obligations usually carry financial guardrails. A cap sets the maximum the indemnitor will pay, commonly around 10% of transaction value for general claims, though it can range from under 1% to the full purchase price depending on the deal. A basket works like a deductible: the indemnitee must absorb a threshold of losses before the indemnitor pays. A true deductible pays only losses above the threshold; a tipping basket pays from the first dollar once the threshold is crossed.
Certain categories, such as fraud or misrepresentation about fundamental facts like ownership and authority, are often carved out of the cap entirely. Sophisticated sellers push to cap even fraud claims, and buyers resist.
Duration
The LOI should say how long the obligation lasts. In M&A this is called the survival period and functions as a private statute of limitations. General representations often survive 12 to 18 months after closing. Fundamental representations often survive five to six years or track the applicable statute of limitations. Fraud claims almost always get an indefinite or significantly extended period. In shipping, the major P&I club standard forms deliberately avoid time limits to keep the carrier’s protection broad.
Governing Law and Signatures
Specify which jurisdiction’s law governs and whether disputes go to court or arbitration. This matters more than it looks. If the parties sit in different countries, a judgment in one may not be enforceable in the other without a treaty in place. The document needs original signatures from authorized representatives.
Duty to Defend vs. Duty to Indemnify
The two obligations sound alike and operate differently. A duty to indemnify means the indemnitor pays for losses once they are determined, at the back end of a dispute. A duty to defend means the indemnitor pays for the indemnitee’s legal defense as soon as a covered claim is filed, regardless of whether the claim ultimately succeeds.
One practical consequence catches people off guard. Standard language promising to cover “losses, damages, costs, and expenses arising from” a specific event does not automatically include the cost of enforcing the indemnity itself. If the indemnitor refuses to pay and the indemnitee has to sue to collect, recovering legal fees from that enforcement action requires separate, explicit language. Without it, under the American Rule, each side bears its own costs even if the indemnitee wins.
Risks Before You Sign
Uncapped Exposure
An LOI without a cap is an open-ended commitment. The standard P&I club forms used in shipping are deliberately uncapped because the carrier needs broad protection. On one of those, the indemnitor’s exposure is theoretically unlimited. Even in commercial deals where caps are the norm, carve-outs for fraud and fundamental representations can swallow the cap.
Conflicts With Your Own Insurance
Signing an LOI can undercut your existing coverage. Many commercial policies contain subrogation clauses giving the insurer the right to pursue third parties who caused a covered loss. If you sign an LOI holding a third party harmless for those same losses, you may be impairing your insurer’s subrogation rights. Some policies treat that as a violation that reduces or voids coverage. Check the subrogation provisions in your existing policies before you sign anything.
The Fraudulent Shipping LOI
An LOI used to obtain a “clean” bill of lading for cargo that is actually damaged or misdescribed is fraudulent. A carrier that knowingly issues a clean bill in exchange for that LOI has participated in deliberate misrepresentation. The LOI becomes unenforceable because it was procured in support of an illegal act, and the carrier’s P&I insurance for any resulting claims is likely forfeited. The document meant to provide protection becomes worthless at the moment it is needed.
When a Letter of Indemnity Won’t Hold Up
Coverage of Illegal Acts
An LOI that covers losses arising from conduct that is illegal or against public policy is void. You cannot contract around criminal liability. If the underlying action the LOI is meant to protect against is itself unlawful, the promise collapses.
Anti-Indemnity Statutes
Forty-three states have enacted some form of anti-indemnity legislation, most commonly in construction. These statutes limit or prohibit provisions that force one party to indemnify another for the other party’s own negligence. Roughly 28 states bar indemnification for another party’s sole or partial fault, and about 15 states only prohibit indemnification for another party’s sole fault. A provision that violates these statutes is void regardless of what the parties agreed to.
Broad-form indemnity clauses requiring you to cover losses even when the other side was entirely at fault will not survive challenge in most states. Limited-form clauses, requiring indemnification only to the extent of your own negligence, are enforceable in the vast majority of jurisdictions.
Vague or Ambiguous Language
Courts construe ambiguous indemnity provisions narrowly. If the LOI does not clearly describe the triggering event, the scope of covered losses, or the identity of the parties, the indemnitor’s obligation may end up far smaller than the indemnitee expected. Every material term should be specific enough that a stranger reading the document could determine exactly who owes what, when, and on what condition.
Bank Guarantees Backing an LOI
An LOI is only as strong as the indemnitor’s ability to pay. When the amounts are large, the indemnitee will often require a bank guarantee behind the LOI. The bank agrees to pay on the indemnitee’s first written demand if the indemnitor fails to perform, making the guarantee effectively unconditional.4Hapag-Lloyd. Letter of Indemnity (and Bank Guarantee, If Applicable)
Bank-backed LOIs are standard in international shipping for cargo releases without original bills of lading, especially when the indemnitor is small or based somewhere enforcing a judgment would be difficult. The bank’s involvement turns the LOI from a promise into something closer to a payment guarantee. Carriers and their insurers are far more willing to accept LOIs with bank backing, and in some cases they will not accept one without it. The cost to the indemnitor is real: banks charge fees for issuing these guarantees and typically require collateral or a credit facility.
Tax Treatment of Indemnity Payments
Payments have tax consequences on both sides, and the treatment depends on what the payment is replacing.
For the payer, an indemnity payment may qualify as a deductible business expense if it is directly related to the payer’s own trade or business. The IRS has made clear that a contractual obligation to pay does not by itself make the payment deductible. The expense must be “proximately and directly related” to the payer’s business, and a taxpayer generally cannot deduct the cost of someone else’s business expenses even when a contract requires the payment.5Internal Revenue Service. Deduction for Indemnification of Liability (IRS Memorandum 20132801F)
For the recipient, treatment depends on what the payment replaces. Payments reimbursing a deductible business loss are generally taxable income. Payments tied to physical injury or sickness may qualify for exclusion under IRC Section 104. Fixed-indemnity insurance benefits have their own treatment: the IRS has stated they are not taxable when premiums were paid with after-tax dollars, but are includible in income to the extent they exceed unreimbursed medical expenses when premiums were paid pre-tax.6Internal Revenue Service. IRS Memorandum 202323006 Because the treatment turns on the facts, anyone receiving a substantial indemnity payment should get tax advice before filing.