When buying a business in Australia, the deal will almost always be structured as either an asset purchase or a stock (share) purchase. An asset purchase lets you select the specific assets and liabilities you take on, while a stock purchase transfers ownership of the entire company, including everything it owns and everything it owes. The right choice depends on your risk tolerance, tax position, the size of the transaction, and the nature of the business you are acquiring.
Getting the structure of a business acquisition wrong is one of the most expensive mistakes a buyer can make. It affects your tax obligations, your exposure to hidden liabilities, the way employees transfer, how contracts are handled, and even whether certain licences and permits survive the transaction.
Yet many buyers focus almost entirely on the purchase price and leave the structure as an afterthought. That is a bit like negotiating the cost of a house without checking whether the title is freehold or leasehold. The structure is not a technicality. It is a fundamental part of what you are actually buying.
This guide breaks down the two main business acquisition structures used in Australia, explains the practical advantages and disadvantages of each, and walks you through the key factors that should drive your decision. If you are looking for lawyers in Perth WA to assist with your transaction, visit this website here.
Whether you are buying a café in Fremantle or acquiring a mining services company in the Pilbara, the principles are the same. Get the structure right and you set yourself up for a clean transition. Get it wrong and you could spend years untangling problems that were entirely avoidable.
Quick Reference: Asset Purchase vs. Stock Purchase at a Glance
| Factor | Asset Purchase | Stock Purchase |
|---|---|---|
| What transfers | Selected assets (equipment, stock, goodwill, IP, customer lists) | Shares in the company entity |
| Liabilities | Only those the buyer agrees to assume | All liabilities transfer with the company |
| Tax base of assets | Buyer gets a stepped-up tax base | Existing tax base carries over |
| Stamp duty | Duty on dutiable assets (varies by state) | Duty on share transfer (landholder rules may apply) |
| GST | May apply unless going concern exemption is met | Generally not subject to GST |
| Employee transfer | Transfer of business rules under Fair Work Act | Employment continues automatically |
| Contracts | Must be assigned or novated individually | Remain with the company |
| Licences and permits | May need to be reapplied for | Generally remain with the company |
| Complexity | Higher (each asset must be identified and transferred) | Lower (one transaction transfers the entity) |
| Buyer’s risk exposure | Lower (cherry-pick what you take on) | Higher (you inherit everything) |
The clearest takeaway from this table is that an asset purchase gives the buyer more control, while a stock purchase is simpler but carries more risk.
What Is an Asset Purchase?
An asset purchase is exactly what it sounds like. You buy specific assets from the business rather than buying the business entity itself. The seller remains the owner of the company or trust. You simply acquire the things that make the business run.
Those assets typically include:
- Plant, equipment, and machinery
- Trading stock and inventory
- Goodwill and customer relationships
- Intellectual property (trademarks, patents, domain names)
- Customer lists and databases
- Supplier contracts (where assignable)
- Leasehold interest in the premises
The critical advantage is selectivity. You choose what you want and leave behind what you do not. If the business has outstanding debts, pending lawsuits, or problematic contracts, those generally stay with the seller. You walk away with the productive parts of the business and leave the baggage behind.
How Assets Are Valued and Allocated
In an asset purchase, the total purchase price must be allocated across the individual assets being acquired. This allocation matters because different asset categories attract different tax treatment.
| Asset Category | Tax Treatment for Buyer | Tax Treatment for Seller |
|---|---|---|
| Trading stock | Deductible as cost of goods sold | Assessable income |
| Depreciable assets | Depreciated over effective life | Balancing adjustment (profit or loss) |
| Goodwill | Not deductible (but capital asset for CGT purposes) | Subject to capital gains tax |
| Intellectual property | May be depreciable over effective life | Subject to capital gains tax |
| Lease premiums | Spread over remaining lease term | Assessable income |
The buyer and seller often have competing interests when it comes to this allocation. Buyers generally prefer to allocate more of the price to depreciable or deductible assets, reducing future tax bills. Sellers may prefer a higher allocation to capital assets that attract the CGT discount. This is one of the areas where negotiation can have a significant financial impact on both parties.
The allocation must also be commercially realistic. The ATO can challenge an allocation that does not reflect the true market value of the individual assets.
What Is a Stock Purchase?
A stock purchase, known in Australia as a share purchase, involves buying the shares of the company that owns the business. You do not buy the individual assets. Instead, you become the new owner of the entity, and everything the entity owns, owes, and is obligated to do comes with it.
Think of it as buying the box rather than the items inside it. The box contains the good things (assets, contracts, licences, employees, revenue streams) and the not-so-good things (debts, contingent liabilities, pending disputes, compliance issues).
Key characteristics of a stock purchase:
- You acquire ownership of the company by purchasing its shares from the existing shareholders
- The company continues to exist as the same legal entity
- All assets and liabilities remain with the company
- Contracts, licences, and permits generally continue without interruption
- Employees remain employed by the same entity
- The company’s tax history, including any carry-forward losses, transfers with it
The main advantage is simplicity. There is one transaction. The company keeps ticking along with the same ABN, the same bank accounts, and the same contractual relationships. Customers and suppliers may not even notice the change.
The main risk is that you inherit everything, including problems you did not know about.
Tax Implications of Each Business Acquisition Structure
Tax is often the factor that tips the scales between an asset purchase and a stock purchase. Both structures have significant tax consequences for both the buyer and the seller, and these consequences frequently point in opposite directions.
For the Buyer
In an asset purchase, the buyer receives a stepped-up tax base in the acquired assets. This means the assets are recorded at their current market value for tax purposes, allowing the buyer to claim depreciation deductions on the full purchase price of depreciable assets. Over time, this can provide substantial tax savings.
In a stock purchase, the company’s existing tax base carries over. The assets remain on the company’s books at their historical cost (less depreciation already claimed). The buyer does not get the benefit of a stepped-up base. However, the company may have accumulated tax losses that can potentially be used to offset future profits, subject to the continuity of ownership test and the same business test under Division 165 and Division 166 of the Income Tax Assessment Act 1997.
For the Seller
Sellers often prefer a stock purchase because the proceeds are treated as a capital gain on the sale of shares. If the shares have been held for more than 12 months, the seller (if an individual) can access the 50% CGT discount. Small business sellers may also qualify for the small business CGT concessions under Division 152, which can significantly reduce or even eliminate the capital gains tax liability.
In an asset purchase, the tax treatment for the seller is more complex. Different assets attract different tax treatment. Trading stock is taxed as ordinary income. Depreciable assets may generate a balancing adjustment. Goodwill is a capital asset subject to CGT. The overall tax outcome depends on the allocation of the purchase price across the various asset categories.
Stamp Duty Considerations
Stamp duty varies by state and territory. In Western Australia, an asset purchase attracts transfer duty on dutiable property, which includes real property, certain business assets, and goodwill in some circumstances.
A share purchase may also attract duty, particularly if the company is a “landholder” under the relevant state legislation. In WA, the Duties Act 2008 imposes landholder duty when a person acquires a significant interest (generally 90% or more for a private company) in an entity that holds land or certain other dutiable property above a specified threshold.
| Duty Consideration | Asset Purchase | Stock Purchase |
|---|---|---|
| Dutiable property | Real property, certain business assets | Shares (may trigger landholder duty) |
| Rate | Varies by asset value and type | Varies by value of underlying landholdings |
| Planning opportunities | Exclude non-dutiable assets from the transfer | Structure shareholding to manage landholder thresholds |
This is one area where professional advice is essential. The difference in duty between the two structures can run into tens or hundreds of thousands of dollars on a large transaction.
How Employees Are Handled
Employee entitlements are one of the most misunderstood aspects of a business acquisition, and one of the most expensive to get wrong.
Asset Purchase
Under the Fair Work Act 2009, when a business is transferred as a going concern, the new owner is generally required to recognise the employees’ prior service for the purpose of accrued entitlements. This includes annual leave, personal leave, and long service leave.
The buyer does not legally acquire the seller’s employment contracts. Instead, the transfer of business provisions in Part 2-8 of the Fair Work Act apply. Transferring employees retain their existing terms and conditions, and the applicable modern award or enterprise agreement follows them to the new employer.
What the buyer should check:
- Total accrued leave liabilities for all transferring employees
- Whether an enterprise agreement applies and its remaining nominal expiry date
- Any pending unfair dismissal or general protections claims
- Workers’ compensation claims history
- Redundancy obligations if positions are not being carried over
Stock Purchase
In a stock purchase, nothing changes for the employees. They remain employed by the same entity. Their terms, conditions, and accrued entitlements continue uninterrupted.
This is simpler, but it also means the buyer takes on the full liability for those entitlements. If the business has 30 employees with years of accrued leave, that is a significant financial obligation that should be factored into the purchase price.
Contracts, Licences, and Permits
Asset Purchase
Most commercial contracts contain an assignment clause that governs whether and how the contract can be transferred to a new party. Some contracts prohibit assignment altogether. Others require the consent of the other party.
If a key customer contract cannot be assigned, the buyer risks losing that customer relationship. If a critical supplier agreement requires consent and the supplier refuses, the buyer may need to negotiate new terms.
Licences and permits present a similar challenge. Many regulatory licences are granted to a specific entity or individual. In an asset purchase, the buyer may need to apply for new licences, which can take time and may not be guaranteed. For industries like liquor licensing, building and construction, transport, and mining, this can be a significant hurdle.
Stock Purchase
Because the entity itself continues unchanged, contracts, licences, and permits generally remain in place. There is no assignment or transfer required. The company is still the party to the contract. Only the ownership of the company has changed.
However, some contracts include a “change of control” clause that is triggered when the ownership of the contracting entity changes hands. These clauses can give the other party the right to terminate or renegotiate the contract. It is essential to review all material contracts for change of control provisions before committing to a stock purchase.
Risk Allocation: The Buyer’s Perspective
This is where the two structures diverge most sharply.
In an asset purchase, the buyer has the ability to leave behind known liabilities and limit exposure to unknown ones. If due diligence reveals an environmental contamination issue, a pending lawsuit, or a tax dispute, the buyer can simply exclude those liabilities from the transaction.
In a stock purchase, there is no such luxury. The company’s liabilities, both known and unknown, transfer with the shares. The buyer’s protection comes from warranties and indemnities in the sale agreement, not from the structure of the deal itself.
Common hidden liabilities to watch for:
- Unpaid superannuation obligations
- Outstanding ATO assessments or audit activity
- Environmental contamination or remediation obligations
- Product liability claims that have not yet been filed
- Unfair dismissal or discrimination claims
- Breaches of contract that the seller has not disclosed
- Undisclosed related-party transactions
For this reason, stock purchases generally require more extensive due diligence than asset purchases. The buyer needs to be confident that the company’s entire history is clean, or at least that the risks are quantified and reflected in the price or covered by appropriate protections in the sale agreement.
For further reading on the general concept of mergers and acquisitions, including the distinction between asset and stock deals, refer to the Mergers and Acquisitions article on Wikipedia.
When to Choose an Asset Purchase
An asset purchase is generally the better option when:
- You want to limit your exposure to unknown liabilities
- The business has debts, disputes, or compliance issues you do not want to inherit
- You want a stepped-up tax base for depreciation purposes
- You are only interested in certain parts of the business (such as a specific division or product line)
- The business operates through a sole trader or partnership structure (where a share purchase is not possible)
- The business has no significant licences or contracts that would be difficult to transfer
When to Choose a Stock Purchase
A stock purchase is generally the better option when:
- The business holds licences, permits, or contracts that are difficult or impossible to transfer
- You want to preserve the company’s existing relationships and trading history
- The company has accumulated tax losses that may be usable
- The seller requires a share sale for CGT discount or small business concession purposes
- The business has a large number of employees and you want a seamless transfer
- Due diligence has not revealed any material hidden liabilities
Your Acquisition Structure Checklist
Before you settle on a structure, work through these questions:
- Have you identified all the assets you want to acquire and confirmed their ownership?
- Have you conducted a thorough search for hidden liabilities, including PPSR, ATO, and court searches?
- Have you reviewed all material contracts for assignment restrictions or change of control clauses?
- Have you identified all licences and permits and confirmed whether they can be transferred?
- Have you calculated the total accrued employee entitlements and factored them into the price?
- Have you obtained tax advice on the CGT, GST, and stamp duty implications of each structure?
- Have you discussed the structure with the seller to understand their tax position and preferences?
- Have you considered the impact of each structure on the ongoing operation of the business?
- Have you included appropriate warranties, indemnities, and conditions precedent in the sale agreement?
- Have you engaged a lawyer to review the transaction documents and advise on risk allocation?
Common Mistakes Buyers Make When Choosing a Structure
Letting the seller dictate the structure without understanding why. Sellers often have a strong preference for a stock purchase because of the CGT advantages. That is fair enough, but the buyer’s interests are different. Accepting a stock purchase without understanding the liability implications can leave you exposed to risks you did not anticipate.
Ignoring stamp duty until settlement. Stamp duty is a significant transaction cost that varies depending on the structure, the state, and the nature of the assets involved. Failing to account for it early in the process can blow out your acquisition budget.
Assuming an asset purchase eliminates all liability risk. While an asset purchase limits your exposure, it does not eliminate it entirely. Transfer of business provisions under the Fair Work Act can impose employee-related liabilities. Environmental liabilities can attach to the property regardless of who owns it. And if you trade under the same name, customers may have expectations that carry over.
Overlooking the practical difficulties of an asset purchase. An asset purchase requires every individual asset to be identified, valued, and transferred. Contracts must be assigned. Licences must be reapplied for. Bank accounts, utility accounts, and insurance policies must all be set up fresh. This takes time and costs money. For a large, complex business, the administrative burden can be substantial.
Failing to get independent tax advice. The tax consequences of each structure can differ by hundreds of thousands of dollars. Generic advice or assumptions based on what a friend’s accountant said about a different transaction are not good enough. Get advice that is specific to your situation, your entity structure, and the current tax legislation.
Frequently Asked Questions
What is the main difference between an asset purchase and a stock purchase?
In an asset purchase, you buy specific assets from the business, such as equipment, inventory, goodwill, and intellectual property. In a stock purchase, you buy the shares of the company that owns the business, which means the entire entity transfers to you, including all assets and all liabilities. The key practical difference is that an asset purchase lets you choose what you take on, while a stock purchase transfers everything.
Which structure is better for the buyer?
In most cases, an asset purchase is considered more favourable for the buyer because it limits exposure to hidden liabilities and provides a stepped-up tax base for depreciation purposes. However, a stock purchase may be preferable when the business holds valuable licences, contracts, or tax losses that would be lost or disrupted in an asset purchase. The best structure depends on the specific circumstances of the transaction.
Do employees automatically transfer in a business acquisition?
In an asset purchase, employees do not automatically transfer. However, under the transfer of business provisions in the Fair Work Act 2009, the new employer is generally required to recognise prior service for entitlement purposes if the employees are offered and accept employment. In a stock purchase, employees remain employed by the same entity, so nothing changes from their perspective.
Is GST payable on a business acquisition?
If the business is sold as a going concern and both parties are registered for GST, the supply may be GST-free under the A New Tax System (Goods and Services Tax) Act 1999. To qualify, the seller must supply everything necessary for the continued operation of the business, and both parties must agree in writing that the going concern exemption applies. A stock purchase (share sale) is generally not subject to GST, as the sale of shares is an input-taxed financial supply.
Can I negotiate the structure with the seller?
Yes, and you should. The structure is a fundamental term of the deal, not a formality. Both parties have legitimate interests that may point in different directions. The buyer may prefer an asset purchase for liability protection, while the seller may prefer a stock purchase for CGT concessions. Often, the final structure is a compromise that reflects the relative bargaining power of each party and the specific tax and commercial considerations of the transaction.
Final Word
Choosing between an asset purchase and a stock purchase is not a decision to make casually. It affects your tax position, your risk exposure, the continuity of the business, and the complexity of the entire transaction. There is no one-size-fits-all answer. The right structure depends on the nature of the business, the quality of its records, the transferability of its contracts and licences, and your own commercial objectives.
What matters is that you make the decision with full information, not based on assumptions, not based on what the seller prefers, and not based on a template you found online. Every business acquisition is different, and the structure should reflect the specific risks and opportunities of your deal.
At DFG Legal, we have been advising business buyers and sellers across Western Australia for over 35 years. We understand the legal, tax, and practical implications of both structures, and we can help you choose the one that best protects your interests.
This article provides general information only and does not constitute legal advice. Every transaction involves unique circumstances.
