What Is a Process Letter?
A process letter (also called a “bid procedures letter” or “sale process letter”) is the formal document that governs a competitive M&A auction. It is sent by the sell-side M&A advisor to shortlisted bidders — typically after management presentations and before the final round of due diligence — and sets out the specific requirements and timeline for submitting a binding offer.
The process letter is not a legally binding document in itself, but it establishes the framework within which binding offers are submitted and evaluated. Bidders who do not comply with its requirements (including timing, bid components, and exclusivity provisions) may be excluded from the process.
What a Process Letter Contains
A well-structured process letter typically includes:
| Section | Content |
|---|---|
| Background | Brief summary of the target and the sale process to date |
| Invitation to bid | Formal invitation to submit a binding offer |
| Data room access | Confirmation of data room access, VDR platform details, additional information process |
| Bid deadline | Date and time by which binding offers must be submitted |
| Required bid components | What must be included in the binding offer (see below) |
| Offer format | Form of offer letter (sometimes with a template attached) |
| Mark-up of transaction documents | Requirement to mark up the SPA and disclosure schedules |
| Financing | Confirmation of financing structure and evidence of funding capability |
| Conditions | Maximum permitted conditions; ideally clean (no financing condition) |
| Exclusivity | Whether the seller will grant exclusivity to the preferred bidder |
| Process timeline | Key dates from bid submission to signing |
| Advisor contacts | M&A advisor contact details for queries |
Required Bid Components
The process letter specifies exactly what a binding offer must include. Typical requirements:
- Enterprise value — The enterprise value offered (equity value to be derived based on a normalised net debt and working capital to be agreed)
- Equity value — Indicative equity bridge from enterprise value
- Earn-out structure — If proposed, full mechanics including KPIs, measurement period, and cap
- Conditions precedent — List of conditions the buyer requires before closing (regulatory approvals, material adverse change, financing)
- Warranty and indemnity insurance — Whether buyer proposes to use W&I insurance and on what basis
- Management retention — Whether the buyer requires management to remain post-closing and on what terms
- Exclusivity — Whether the buyer seeks exclusivity and for what period
- Signing timeline — Proposed time to signing following selection as preferred bidder
- SPA mark-up — A redlined version of the seller’s draft SPA with buyer’s proposed changes
- Financing confirmation — Committed financing letter, equity commitment letter, or equivalent evidence of funding certainty
First-Round vs Final-Round Process Letters
In a two-stage auction, there are typically two process letters:
Round 1 (Indicative Offer) Process Letter: Sent to a broader list of potential buyers (typically 30–60 parties). Sets out the requirement to submit a non-binding indicative offer by a specified date. Less detailed — focused on getting a price range and confirming buyer interest. Does not require SPA mark-up or financing evidence.
Round 2 (Binding Offer) Process Letter: Sent to the shortlist of 3–6 parties selected to proceed after management presentations. Requires a fully detailed binding offer, SPA mark-up, financing confirmation, and all other bid components listed above.
The Process Letter and Competitive Tension
The process letter is one of the tools through which an M&A advisor creates and maintains competitive tension in an auction. By:
- Setting a firm and non-negotiable bid deadline
- Requiring clean (minimal-condition) offers
- Not revealing the number of remaining bidders
- Setting high expectations for SPA mark-up quality and completeness
- Requiring financing confirmation to demonstrate deal certainty
…the advisor signals to each buyer that they must put forward their best offer — because there are other serious bidders in the process.
Sellers benefit from a well-drafted process letter that maximises competitive tension, minimises conditions, and protects the seller’s right to run a disciplined process without being pressured to grant premature exclusivity.
Responding to a Process Letter: Buyer’s Perspective
From the buyer’s perspective, responding to a process letter involves:
- Completing financial and commercial due diligence — All key open items from the data room must be resolved before the bid deadline
- Finalising financing — Senior debt, equity commitment, or shareholder funding must be confirmed and documented
- Marking up the SPA — A detailed legal review and mark-up of the seller’s draft agreement; areas of material disagreement with the seller will affect bid evaluation
- Determining the final price — Investment committee or board approval of the final enterprise value to be offered
- Structuring the offer — Deciding on earn-out use, rollover equity for management, escrow arrangements, and warranty and indemnity insurance parameters
A buyer who responds to a process letter with a clean bid (minimal conditions), committed financing, limited SPA mark-up, and a competitive price is in the strongest position to be selected as preferred bidder and enter exclusive negotiations.
Related Terms
GP-Led Secondary
A secondary market transaction initiated by a private equity fund's general partner — rather than a limited partner — typically involving the transfer of portfolio assets into a new vehicle such as a continuation fund, strip sale, or tender offer.
LOI (Letter of Intent)
A partially binding document submitted by a prospective buyer after due diligence, setting out the proposed purchase price, key transaction terms, and a request for exclusivity to negotiate a definitive agreement.
M&A Mandate
A formal engagement between an M&A advisor or investment bank and a client — typically a business owner, company board, or acquirer — authorising the advisor to run a transaction process on the client's behalf in exchange for an agreed fee structure.
Mandatory Offer
A regulatory requirement compelling an acquirer who crosses a specified ownership threshold to make a cash offer to all remaining shareholders at a minimum price.
NDA (Non-Disclosure Agreement)
A legally binding contract between parties in an M&A process that restricts the disclosure and use of confidential information shared during deal evaluation, due diligence, and negotiations.
Secondary Buyout
A transaction where one private equity firm sells a portfolio company to another private equity firm, representing a PE-to-PE transfer rather than a sale to a strategic buyer.