The negotiation between buyer and seller is rarely about price alone. It's about the layer cake — how much of the total consideration is cash at close, how much is earn-out, how much is seller note, how much is rollover equity. Two deals at the same headline number can produce dramatically different outcomes for the seller depending on how those layers stack. This Explainer covers the framework; the nested cluster Explainers go deeper on each dimension.
Four components, four risk profiles.
Total consideration in an agency M&A transaction typically combines four primary components, each with a different risk-and-timing signature:
- Cash at close. Wired the day of close. Zero counterparty risk, zero performance risk, zero timing risk. The seller's money is the seller's money the moment the closing wire clears.
- Earn-out. Contingent payment tied to post-close performance metrics — typically revenue, EBITDA, or retention over a defined period. Industry data consistently shows earn-outs collect at a fraction of their stated value; the seller's deal model should apply a meaningful discount.
- Seller note. The seller is financing part of the buyer's purchase. Promissory note documents the obligation, typically subordinated to senior bank debt. Carries timing risk (paid over years), credit risk (buyer's ability to service the note), and subordination risk (paid after senior lenders if things go wrong).
- Rollover equity. The seller retains a minority stake in the acquired platform. Pays at the eventual platform exit — the "second bite of the apple" — typically 3–7 years later. Carries timing, control, and counterparty risk; offers meaningful upside through multiple arbitrage.
Priority of payment matters.
When an agency acquisition closes, the buyer's capital stack typically includes senior bank debt, possibly mezzanine debt, the seller note, and equity. If post-close performance disappoints, the order in which each layer gets paid back is fixed by the subordination agreement — and the seller note sits below the senior debt, which means it gets paid only after the bank is current.
The seller who holds a seller note doesn't just hold a promise to pay — they hold a position in the capital stack. Reading where that position sits, and what payment-blockage protections apply when senior debt is in trouble, is the difference between a defensible note and a hope note.
The capital stack hierarchy in a typical PE-backed acquisition, top to bottom:
Bank loan.
- Paid first, always; commercial bank or SBA.
- UCC-1 on agency assets, often personal guarantee from buyer.
- If performance lags, blocks all junior payments.
- The structural ceiling everything below must accept.
Subordinated debt.
- Paid second; PIK interest common.
- Subordinated to senior; usually senior to seller note.
- Present mainly in larger or PE-platform deals.
- Compresses the gap between senior debt and seller paper.
Seller paper.
- Paid third; subordinated to senior and mezzanine.
- Stock pledge + UCC-1 are the seller's protection layer.
- Payment-blockage caps limit how long senior can block payment.
- Standstill-period negotiation matters here.
Buyer + rollover.
- Paid last; first-loss position.
- Rollover equity sits here alongside buyer equity.
- Upside on platform exit; downside on platform failure.
- Tag-along and put-option rights protect minority positions.
Certainty vs. lottery.
Every payment-structure negotiation is a tradeoff between certainty and lottery. Higher cash at close = lower headline multiple (the buyer pays more cash, expects to pay less total). Lower cash at close = higher headline multiple (the buyer offers more on paper, expects to pay less in practice).
The headline-vs-wire spread can range broadly depending on structure — generally 10–50% (structure-dependent), with deeper spreads in deals heavy on contingent or deferred components. The seller's job is to decide what spread is acceptable. For burnout sellers, the answer is "narrow spread, accept lower headline." For confident sellers willing to bet on the buyer's execution, the answer can be "wider spread, accept higher headline."
The discipline that holds up: build the deal model in present-value terms. Apply explicit discount rates to deferred consideration. Apply explicit probability factors to earn-outs. Compare offers in PV-equivalent terms, not headline-equivalent. The deal that wins on PV after appropriate discounts is the deal that wins for the seller in practice.
Foundations, forms, financing.
The 12 spokes cluster into three groups by function. Each addresses a different layer of the payment-structure question:
- Foundations & capital stack. Payment fundamentals, capital-stack hierarchy, the hybrid layer-cake, acquirer funding strategies, financing-mechanisms architecture. The framework layer.
- Forms of consideration. All-cash / clean break, rollover equity, payments over time / deferred consideration, as-earned / distressed structures. The "what gets paid" layer.
- Seller-financing instruments. Promissory note architecture, seller-note risk & subordination, stock pledge / UCC-1 perfection. The legal-document layer.
The Pillar — Deal Negotiation, Structuring & Closing — covers the broader framework across all four clusters. The other top-level Explainers in this cluster: Earnout Defense, Risk Allocation, and SBA & Individual Buyer.