A Business Purchase Agreement (also known as a Sale of Business Agreement) is a comprehensive, legally binding contract between a vendor (seller) and a purchaser (buyer) for the acquisition of a business as a going concern in Australia. It is one of the most significant commercial documents in Australian business law, as it governs the transfer of ownership of an entire business including all its assets, operations, and relationships.

Under a Business Purchase Agreement, the vendor agrees to sell and the purchaser agrees to buy the business as a going concern — meaning the business is transferred as a fully operational entity with all assets, goodwill, contracts, licences, stock, and other elements necessary for it to continue operating. This is the standard structure for most business sales in Australia, as distinct from a share sale (where the buyer acquires shares in the company that owns the business) or an asset sale (where only specific assets are transferred).

One of the most important tax considerations in any Australian business sale is whether the transaction qualifies as a GST-free supply of a going concern under section 38-325 of the A New Tax System (Goods and Services Tax) Act 1999 (Cth). Where both the vendor and purchaser are registered for GST, the vendor continues to carry on the business until completion, and the supply includes all things necessary for the continued operation of the business, no GST is payable on the purchase price — saving the purchaser 10% of what can be a very significant sum.

Goodwill is usually the most valuable component of a business sale in Australia. It represents the value of the business's customer relationships, brand reputation, trading history, supplier networks, and ongoing business connections. Because goodwill is intangible, a Business Purchase Agreement must contain strong provisions protecting the purchaser's investment in goodwill — including robust restraint of trade obligations on the vendor preventing them from competing with the sold business after completion.

This template is governed by Australian federal and state law and is suitable for use in all Australian states and territories including New South Wales, Victoria, Queensland, Western Australia, South Australia, Tasmania, the Australian Capital Territory, and the Northern Territory.

A Business Purchase Agreement is required whenever a buyer wishes to acquire an entire business as a going concern in Australia. It is the appropriate document for any transaction involving the transfer of a business's goodwill, operations, trading relationships, and assets from one entity to another.

You need a Business Purchase Agreement when you are: buying or selling a retail business, café, restaurant, professional practice, trade business, service business, or online business; acquiring a franchise business or a licensed premises; purchasing a business from a retiring owner; acquiring a business from an estate or executor following the death of the owner; completing an arm's length commercial acquisition of an SME (small to medium enterprise) in any industry.

A Business Purchase Agreement is particularly important — and legally essential — where the transaction involves: the transfer of employees under the Fair Work Act 2009 (Cth); the assignment of commercial leases requiring landlord consent; the novation or assignment of material supplier or customer contracts; the transfer of regulatory licences and permits (such as liquor licences, food business registrations, or trade licences) requiring regulatory approval; or a claim for GST-free going concern treatment under section 38-325 of the GST Act.

A Business Purchase Agreement is also the appropriate vehicle for addressing a due diligence period — a period during which the purchaser investigates the financial performance, contractual obligations, regulatory compliance, and overall health of the business before committing to completing the transaction. A properly drafted due diligence clause gives the purchaser the right to withdraw if due diligence reveals material issues, while giving the vendor certainty about the process and timeline.

Both the vendor and the purchaser should seek independent legal advice from a solicitor experienced in commercial transactions, and independent accounting and tax advice from a registered tax agent, before signing any Business Purchase Agreement. The CGT, stamp duty, and GST implications of a business sale can be substantial, and both parties need professional guidance to structure the transaction appropriately.

A comprehensive Australian Business Purchase Agreement should include several essential provisions to adequately protect both the vendor and the purchaser throughout the transaction.

The sale of business clause defines precisely what is being sold and purchased as a going concern. This includes an itemised description of all assets included in the sale (goodwill, stock, plant and equipment, intellectual property, leases, licences, contracts, and customer records) and a clear statement of any excluded assets. Schedules should be attached listing all significant assets in detail.

The purchase price and allocation clause sets out the total consideration payable by the purchaser and how it is allocated across different asset classes. The allocation is critical for CGT purposes — particularly for the vendor's ability to access CGT small business concessions under Division 152 of the Income Tax Assessment Act 1997 (Cth) — and for the purchaser's depreciation and future CGT cost base calculations. Both parties should obtain independent tax advice regarding the allocation before signing.

The GST going concern clause addresses whether the sale qualifies as a GST-free supply of a going concern under section 38-325 of the A New Tax System (Goods and Services Tax) Act 1999 (Cth). This clause is essential in every Australian business sale and must clearly state the parties' intentions regarding GST and the consequences if the ATO determines that the GST-free concession does not apply.

The due diligence clause gives the purchaser a reasonable period to investigate the business before committing to completion. The clause should specify the duration of the due diligence period, the information and access the vendor must provide, and the purchaser's right to withdraw if due diligence reveals unacceptable issues.

The employee transfer clause addresses the requirements of Part 2-8 of the Fair Work Act 2009 (Cth) regarding the treatment of employees in a transfer of business, including the recognition of accrued leave entitlements and the continuation of transferable industrial instruments.

The vendor warranties are representations given by the vendor to the purchaser about the accuracy of financial information, the vendor's title to the business assets, the absence of undisclosed liabilities, the current status of licences and permits, and the ongoing compliance of the business with applicable laws. The restraint of trade clause prevents the vendor from competing with the purchaser's newly acquired business, protecting the value of the goodwill purchased.