If you've been told you need to prepare an information memorandum before selling your business, you might be wondering exactly what that involves — and whether it's really necessary.
This post explains what an information memorandum is, what it typically contains, how it differs from a public listing, when it's worth preparing, and what to be careful about.
The Short Answer
An information memorandum — often called an IM or confidential information memorandum (CIM) — is a detailed document prepared for serious buyers after initial screening, usually following the signing of an NDA.
It's more detailed than a public business-for-sale listing. A listing is designed to attract enquiries. An IM is designed to help qualified buyers understand the business well enough to make a serious offer.
An IM typically includes financial performance, adjusted EBITDA, products and services, customers, staff, operations, assets, growth opportunities, market position, reason for sale and the transaction process. It should be factual, evidence-backed and carefully controlled.
It should not be shared publicly. It often contains sensitive commercial information that could cause real damage in the wrong hands.
Why Sellers Use an Information Memorandum
The IM plays a specific role in the sale process. Once a buyer has expressed initial interest and signed an NDA, they need enough detail to decide whether to make a formal offer. The IM provides that detail in a structured, professional way.
A well-prepared IM can:
Present the business professionally and consistently to multiple buyers
Reduce repeated questions from different buyers
Explain the valuation story with supporting evidence
Show financial trends clearly
Highlight genuine growth opportunities
Summarise operations without requiring management to spend hours briefing every interested party
Build buyer confidence
Support comparison across competing offers
Control the flow of information during the sale process
Support a structured, competitive sale process
An IM is particularly useful when the business is larger, the sale is confidential, multiple buyers are being approached simultaneously, buyer interest includes trade acquirers, the business has several revenue streams or complex financials, or the seller wants to create competitive tension among bidders.
IM vs Business-for-Sale Listing: The Key Differences
Audience - General market - Qualified, serious buyers only
Access - Public - Controlled — usually after NDA
Detail level - High-level - Detailed
Primary purpose - Generate enquiries - Support serious offers
Financials - Summary - More detailed
Customer data - Usually anonymised - More detailed but still controlled
Confidentiality - Public-safe - Sensitive
Length - Short to medium - Longer and more comprehensive
Typical use - Marketplace or broker marketing - M&A and adviser-led processes
The practical difference: a listing says "this business may be worth enquiring about." An IM says "here is the business case for making a serious offer."
What an IM Usually Includes
Executive Summary
The executive summary gives buyers the essential picture at a glance — business overview, location, sector, key strengths, reason for sale and transaction summary. It should be compelling but accurate.
Business History
This section covers how the business was founded, its ownership history, key milestones, how it has grown, and where it sits in its market. Buyers want to understand the journey and why the business is where it is today.
Products and Services
A clear explanation of what the business sells, its revenue streams, pricing model, what differentiates it from competitors, and the margins it achieves. Buyers need to understand the commercial model.
Market and Customers
This covers the types of customers the business serves, sector trends, customer concentration (how dependent the business is on its largest customers), recurring revenue and contract length, retention rates, and the sales channels used.
Financial Performance
This is often the heart of the IM. It should include:
Revenue over three or more years
Gross profit and gross margin
EBITDA
Adjusted EBITDA with a clear add-back schedule
Revenue broken down by service, product or division
Margin trends
Working capital analysis
Forecasts for the coming period
Financial figures in the IM must be consistent with the actual accounts. Discrepancies found in due diligence damage trust and can kill deals.
Operations
A summary of how the business actually runs — staffing, systems, premises, suppliers, assets, processes, operational capacity and technology. Buyers need confidence that the business can continue operating after the seller leaves.
Growth Opportunities
A realistic view of where the business could grow under new ownership. This might include new markets, expanded sales channels, pricing opportunities, operational improvements, cross-selling, product or service expansion, geographic growth or digital marketing. Growth opportunities should be plausible, not speculative.
Transaction Process
This section tells buyers what happens next — how the process works, what the timetable is, how they submit an offer, who to contact, and what's expected at each stage.
What Not to Include Too Early
Even in an IM shared after an NDA, some information should still be held back for later-stage due diligence.
Be careful with:
Full customer lists with names and contact details
Individual staff names (particularly below senior management)
Individual payroll data
Supplier pricing terms
Trade secrets and technical formulas
Source code
Passwords and system access details
Full contracts
Bank statements
Tax reference numbers and correspondence
Details of sensitive complaints or disputes
Regulator correspondence
Personal data on any individuals
Highly detailed pipeline or sales funnel data
The principle is staged disclosure. The IM should help buyers understand the business well enough to make a serious offer — not hand them everything they'd need to run it.
How to Make an IM More Credible
A strong information memorandum is factual, specific and evidence-backed. It is consistent with the accounts. It's honest about risks rather than glossing over them. And it's clear in how it defines its financial figures.
Specifically, a credible IM:
States clearly what is and isn't included in the adjusted EBITDA
Evidences add-backs rather than just listing them
Is transparent about the owner's role and what replaces it
Is honest about customer concentration
Presents growth opportunities that are plausible, not just aspirational
Is consistent with the documents that will appear in the data room
Explains any anomalies in the financials rather than hoping buyers won't notice
What to avoid:
Hype and unsupported marketing claims
Phrases like "huge potential" without evidence
"Guaranteed growth" or vague pipeline figures
Inflated or poorly evidenced add-backs
Misleading charts (e.g., cherry-picked time periods)
Hidden or downplayed risks
A credible IM builds buyer trust. A salesy IM creates suspicion. And suspicious buyers either walk away or renegotiate heavily once they find the gaps in due diligence.
When an IM Is Worth Preparing
An IM is most valuable when:
The asking price is significant
The business is complex enough that a simple listing won't give buyers enough to go on
There are several buyer types — each of whom needs a consistent, professional introduction
The seller wants to generate competitive offers from multiple parties
Buyer outreach is targeted (approaching specific companies or funds, not just waiting for listings to generate interest)
Strategic buyers or private equity may be interested
The business has several divisions or revenue streams
The financials need explanation or context
Confidentiality must be controlled tightly
For very small, straightforward businesses, a full IM may be unnecessary. A shorter seller pack or confidential summary — combined with the usual listing — may be sufficient. The investment of time and cost in a full IM is usually justified by deal size and complexity.
Who Prepares the IM?
An IM can be prepared by:
The seller themselves
A business broker
An M&A or corporate finance adviser
The seller's accountant
An internal finance team
A specialist copywriter working under adviser review
For larger deals, a corporate finance adviser typically prepares or coordinates the IM, drawing on information provided by the seller and their accountant.
Whatever the process, the seller must review and confirm the accuracy of every material statement in the IM. If the document contains misleading information — even unintentionally — it can damage trust with buyers and create disputes post-completion. Buyers may have legal remedies if they can show they relied on information in the IM that later turned out to be wrong.
Confidentiality and Data Protection
The IM should only be shared with buyers who have been properly screened and who have signed an NDA. Before releasing an IM, consider:
Has the buyer's identity been confirmed?
Do they appear to have genuine interest and the financial capacity to complete?
Has an NDA been signed and stored?
Has an adviser reviewed the buyer's credibility where appropriate?
If the IM includes any personal data — for example, information about staff or directors — data protection obligations apply. The ICO's guidance is clear that data sharing must be considered carefully during due diligence in mergers and acquisitions. Where a transfer of personal data is involved, the nature of that transfer and how it is protected matters.
Use anonymised or aggregated data where possible. Avoid including names of individual staff members below senior management, personal contact details or salary data for named individuals in the initial IM.
Information Memorandum Checklist
Before releasing an IM, check:
Buyer access is controlled and NDA is in place
Executive summary is clear and accurate
Business history and ownership are explained
Products and services are described clearly
Financial figures are consistent with statutory accounts
Adjusted EBITDA is clearly explained with evidenced add-backs
Customer concentration is summarised honestly
Staff and management overview is included
Operations and assets are described accurately
Growth opportunities are realistic, not speculative
Risks are addressed, not hidden
Sensitive personal or commercial data has been appropriately excluded or anonymised
The seller and any advisers have checked accuracy
FAQs
Is an IM the same as a sales brochure?No. An IM is considerably more detailed and is treated as confidential. A sales brochure or listing is a public-facing document designed to attract initial interest. An IM is shared only with qualified, screened buyers after an NDA.
Do all business sales need an IM?No. Smaller or simpler sales may only need a listing, a seller pack and the usual due diligence documents. An IM becomes more valuable as deal size and complexity increase.
Should an IM include full financials?Usually yes, but the level of detail should match the buyer's stage in the process and the confidentiality controls in place. More sensitive financial data can be held in the data room for later-stage buyers.
Can I send an IM before the NDA?Generally no. Use buyer screening and an NDA first. The IM contains sensitive information that shouldn't be released without appropriate protection in place.
Who writes the IM?The seller, broker, accountant or M&A adviser may prepare it. For larger deals, corporate finance support is usually involved. The seller must check and confirm accuracy regardless of who drafts it.
Key Takeaways
An information memorandum is a detailed, confidential document that helps serious buyers understand a business well enough to make a formal offer. It's more detailed than a public listing, restricted to qualified buyers, and designed to support a structured sale process.
It should be factual, specific, evidence-backed and consistent with the accounts. It should be honest about risks. It should not disclose everything — staged disclosure matters, particularly for personal or commercially sensitive data.
Not every business sale needs one. But for larger, complex or competitive sales — particularly those involving strategic buyers or private equity — a well-prepared IM is one of the most valuable documents in the process.
*Buy a Business Ltd is a marketplace, not a broker, corporate finance adviser, M&A adviser, law firm, tax adviser or accountant. This post is for general guidance only and does not constitute professional advice. Always seek independent professional advice before selling your business.*