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Basics

Letter of intent (LOI)

Also known as: LOI, term sheet, MOU, heads of terms, indication of interest

Definition

A letter of intent is a short document in which a buyer and seller record the principal terms of a proposed transaction, such as price, structure and timing. It precedes due diligence and the definitive purchase agreement.

Updated November 2026

Letter of intent, explained simply

Most of an LOI is not legally binding. A few provisions usually are, most importantly exclusivity (the no-shop), which prevents the seller negotiating with other buyers for a fixed period, together with confidentiality and governing law.

The LOI sets the terms that financial due diligence must then test. If the price is expressed as cash-free, debt-free with a normal level of working capital, the diligence team must define and measure each of those.

How the LOI price is paid

Illustrative

Alder Creek, headline price $40.0 million, $ millions

The headline price is a combination of cash at closing, deferred consideration and contingent consideration.

Typical contents

TermWhat it records
PriceHeadline value and the earnings basis on which it was calculated
Price basisUsually cash-free, debt-free with a normal level of working capital
Form of paymentCash at closing, seller note, earn-out, rollover equity
StructureAsset purchase or stock purchase
DiligenceScope and timetable
ExclusivityNo-shop period, commonly 30 to 90 days
ConditionsFinancing, key employee agreements, approvals

Worked example

A buyer offers $40.0 million for Alder Creek, based on EBITDA of $5.0 million, cash-free and debt-free with a normal level of working capital. Consideration is $32.0 million cash at closing, a $4.0 million seller note and up to $4.0 million of earn-out, with 60 days of exclusivity.

Diligence later supports adjusted EBITDA of $4.6 million. Because the LOI tied the price to $5.0 million of EBITDA, the buyer has a clear basis to renegotiate.

Alder Creek Manufacturing, Inc. is a fictional company. All figures are illustrative.

Why it matters in a deal

The LOI frames the negotiation. Vague wording on working capital or debt, or an unstated EBITDA basis, is a common source of later disputes.

Red flags

  • No stated EBITDA basis for the price
  • Undefined “normal” working capital
  • Exclusivity too short for proper diligence

Frequently asked questions

What is letter of intent (LOI) in M&A?
A letter of intent is a short document in which a buyer and seller record the principal terms of a proposed transaction, such as price, structure and timing. It precedes due diligence and the definitive purchase agreement.
Is an LOI legally binding?
Mostly not, except for provisions such as exclusivity and confidentiality.
How does an IOI differ from an LOI?
An indication of interest comes earlier and usually gives a price range. An LOI is more detailed and normally grants exclusivity.

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