Seller Retaining Equity When Buying a Business in Australia: How the Structure Works
Seller retained equity — sometimes called seller rollover equity or a seller rollover — is when the previous owner keeps a minority stake in the business after settlement. The buyer acquires majority control; the seller stays on as a minority shareholder. It's a real deal structure used in Australian business sales, and it's not the same as vendor finance, an earn-out, or having the seller stick around as a consultant. Understanding the distinction matters because each structure carries different rights, risks, and tax outcomes.
This is Module 6 territory — deal structure and financing — and it's one of the more nuanced arrangements you'll encounter when buying a business in Australia, particularly in the $500K to $5 million range where sellers often have a mix of financial and emotional reasons for not selling 100%.
What seller retained equity actually means
In a standard acquisition, the buyer purchases 100% of the business — either the assets or the shares — and the seller exits cleanly. The seller gets their money; the buyer gets the keys.
In a seller retained equity arrangement, the seller takes payment for, say, 70% or 80% of the business and keeps a 20% to 30% shareholding. The buyer takes control — makes decisions, runs operations, sets strategy — but the seller retains an economic interest and, depending on how the shareholder agreement is structured, some governance rights.
The seller still gets a large cash payment at settlement. They're not deferring the whole price. They're taking most of their money off the table and keeping a slice — usually because they believe the business will grow under new ownership and want to participate in that upside.
Three things make this different from other deal structures:
- It's not vendor finance. In a vendor finance arrangement, the seller lends you money to buy their business. You owe them a debt; they hold security over the business assets. In retained equity, there's no loan. The seller isn't your creditor — they're your co-investor.
- It's not an earn-out. An earn-out agreement pays the seller more money in the future if the business hits certain performance targets. The earn-out amount is tied to results. Retained equity pays the seller based on their shareholding — through dividends, a future buyout, or a sale of the whole business.
- It's not the seller staying on as an employee or consultant. The seller might also agree to stay involved operationally, but that's a separate arrangement — a services agreement, not an equity position.
Why sellers retain equity: the motivations
It sounds counterintuitive. The seller is exiting the business they built — why would they want to keep a stake? There are a few reasons, and understanding them helps you negotiate the right terms.
Tax planning. Under Australian tax law, timing matters. If the seller has significant capital gain, retaining equity might allow them to defer part of the taxable event. A tax adviser who works in business sales will often recommend a partial retention as part of a structured exit over two or three years. The seller isn't generously backing your vision — they're managing their tax bill (which is more than fine; it just means you understand their incentive).
Upside participation. The seller built this business over 15 years and genuinely believes it's undervalued at the agreed price. They think you'll double revenue in three years. Keeping 20% lets them participate in the growth they helped create. This is most common in businesses with strong systems, recurring revenue, or a clear growth path that the current owner hasn't pursued due to capacity or appetite.
Alignment and transition. Some buyers, particularly those with private equity backgrounds or investors behind them, actively want the seller to retain equity because it aligns incentives during the transition period. A seller with 20% skin in the game is more motivated to support the handover, introduce you to key clients, and not undermine the business after sale.
They can't find a full-price buyer. I've seen deals where the seller retained equity not because they wanted to, but because the business had an issue — concentration risk, a key person problem, a large upcoming capital expenditure — that made a 100% buyer nervous. Retaining equity was the compromise that got the deal done. Worth understanding which category you're in.
How the structure is documented
Seller retained equity requires more documentation than a straight asset sale. At minimum, you need:
A shareholders' agreement. This is the critical document. It governs the rights of each shareholder — voting rights, dividend policy, transfer restrictions, drag-along and tag-along rights, buyout mechanisms, and what happens if one party wants to exit. Without a properly drafted shareholders' agreement, you're co-owners with no agreed rules. That ends badly.
A buyout mechanism. Most buyer-friendly structures include a predetermined path to full ownership. Either the buyer has a call option — the right to buy the seller's remaining stake at an agreed formula price after a set period — or there's a put option that allows the seller to force the buyer to purchase their shares after a certain date. Sometimes both. The formula is usually an EBITDA multiple applied to the business's earnings at the time of exercise. Negotiate this upfront. If it's left vague, you'll spend money on lawyers when you want to buy out the seller three years later.
The sale and purchase agreement. The main sale and purchase agreement needs to reflect the retained equity structure — what percentage each party holds, what warranties apply to the seller's shareholding, and how future capital raises or transfers are handled.
When seller retained equity makes sense for buyers
From a buyer's perspective, this isn't always the right structure — but it can be genuinely useful in specific situations.
You're buying a business that's heavily dependent on the seller's relationships. If half the revenue comes from clients who call the seller's mobile directly, having the seller stay on as a minority shareholder — with skin in the game and a clear financial interest in those relationships surviving the transition — is better than hoping they cooperate out of goodwill for six months post-settlement.
You need to bridge a valuation gap. The seller thinks the business is worth $3 million; your due diligence says $2.4 million. One way to bridge that gap without arguing over the numbers is to pay $2.4 million for 80% and have the seller retain 20%. If the business performs to the seller's expectations, they participate. If it doesn't, they've absorbed part of the risk. This is a genuinely useful tool when you've done your checking the financials thoroughly but still have different views on future performance.
You're conserving working capital. Buying 80% instead of 100% means a lower upfront price. In a business where working capital is tight — or where you have plans for capital expenditure in the first year — keeping more cash in the business by paying for a smaller initial stake can make operational sense.
A broker told me last month about a deal in the HVAC sector where the buyer actively structured a 25% seller retention because the business had four large commercial maintenance contracts that were personally signed with the seller over a decade. The seller retained equity for 18 months, introductions happened properly, contracts were novated, and the buyer exercised a call option at a pre-agreed formula. The seller netted more than a clean sale would have given them; the buyer got genuinely helpful transition support. It works when both parties go in with clear eyes.
Risks for buyers
Seller retained equity is not inherently buyer-friendly. There are real risks that need to be managed through the documentation.
Loss of full control is real, not theoretical. Even a 20% minority stake can carry blocking rights on major decisions — taking on debt, changing the capital structure, selling the business, dismissing key staff — if the shareholders' agreement is poorly negotiated. Read every provision in that document carefully. A minority shareholder with blocking rights on anything significant is not a silent investor; they're a co-decision-maker.
Valuation disputes on buyout. If the buyout formula isn't precisely defined, you'll have a disagreement when you exercise the call option. "EBITDA multiple" isn't enough — you need to agree what counts as an add-back, whether the multiple adjusts for size, and who does the calculation. I've seen these disputes get ugly (and expensive) when neither party thought to nail down the details three years earlier.
Tax complexity. CGT applies differently to share transfers than asset sales. The seller's retained equity position creates its own tax treatment — and yours is affected by the structure too. You need a tax adviser who specifically works in business M&A, not a generalist accountant, to model the tax outcomes for both parties before you agree to the structure.
Misaligned incentives post-sale. The best scenario is a seller who's actively helpful during the transition and happy to exit cleanly later. The worst is a seller who second-guesses your every decision because they still have an economic stake in the outcome. Before agreeing to seller retained equity, spend time understanding the seller's actual personality and motivations. Some sellers are genuinely good minority partners; others are emotionally unable to let go of control. The equity structure doesn't determine which type you have — but the wrong type with retained equity is significantly worse than the wrong type without it.
Want the full framework for comparing deal structures? The deal structure comparison framework walks through vendor finance, earn-outs, retained equity, and full-price acquisitions side-by-side — with a decision tool for which structure fits your situation. Grab it free.
What to negotiate before you sign
If seller retained equity is on the table, the negotiation items that matter most:
The buyout timeline and formula. Push for a call option you can exercise within 24 to 36 months. The formula should be based on a verifiable earnings figure (EBITDA or SDE, defined precisely) multiplied by an agreed multiple — typically at or below the original acquisition multiple. Agree in writing what costs are excluded from the EBITDA calculation, because this is where disputes happen.
Dividend rights and cash distributions. During the retention period, who receives dividends? At what rate? The seller's 20% entitlement to distributions can materially affect the business's ability to retain cash for reinvestment. Some buyers structure no dividends during the retention period in exchange for a slightly higher buyout multiple later.
Governance and voting rights. The seller should have information rights — they're entitled to see the accounts and understand how their investment is performing. They should not have veto rights over day-to-day operational decisions. Anything that gives a minority seller blocking rights on hiring, pricing, or operational matters is worth pushing back on hard.
Non-compete obligations. Even as a minority shareholder, the seller should be bound by a restraint of trade. The fact that they still own part of the business doesn't mean they should be free to compete with it. Make sure the sale and purchase agreement includes appropriate restraints that survive the equity retention period.
This is covered in depth in Module 6 of the Playbook, alongside the full framework for structuring vendor finance, earn-outs, and bank-financed deals.
FAQ
Is seller retained equity common in Australian business sales?
It's more common in the $1 million to $10 million range than in smaller deals. Below $500K, most sellers want a clean exit and most buyers don't want the governance complexity. Above $1 million, particularly where the business has strong growth prospects or key-person dependency, it's a recognised structure.
Does the seller still get taxed on their initial payment?
Yes. The portion they sell at settlement triggers a capital gains event in the income year of settlement. The retained equity position is valued as part of the overall transaction but CGT on the retained portion is deferred until they sell those shares — which is why some sellers find this attractive.
Can I use bank finance to buy a majority stake while the seller retains the rest?
Yes, and this is common. The bank lends against the majority stake you're acquiring. The retained equity doesn't affect the security position as long as the lending is structured against the business assets or cash flow rather than the shareholding itself. Different lenders have different appetites for this — worth discussing with a commercial lending broker before you commit to the structure.
What happens if the seller refuses to sell their retained stake when I want to buy them out?
If you have a properly drafted call option, they can't refuse — you exercise the option, the formula determines the price, and the transfer happens. Without a call option, you can't force the sale. This is the single most important reason to have a properly drafted shareholders' agreement from the start.
For the broader picture on deal structure and financing when negotiating a business purchase, or if you want to compare seller retained equity with vendor finance and earn-out agreements, those articles cover each structure in detail.
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