A business can appear profitable on paper while carrying a lease that cannot be assigned, overdue tax liabilities, key customers ready to leave, or a contract that makes the advertised earnings unrealistic. Business purchase due diligence is the process of checking those issues before you commit to buying. It is not a box-ticking exercise. It is how you establish what you are actually purchasing, what risks come with it, and whether the price still makes commercial sense.
For buyers in Sydney and across NSW, the work should begin well before signing a binding contract or paying a substantial deposit. A careful review can uncover issues that support a price reduction, require a contractual protection, or justify walking away from the transaction altogether.
What does business purchase due diligence involve?
Due diligence is a structured investigation of a target business. The scope depends on the type of business, its size, the purchase price and whether you are buying the assets, shares or units in an entity.
An asset purchase usually means you acquire specified business assets, such as plant and equipment, stock, intellectual property, goodwill and customer information. The seller generally retains the legal entity and its historic liabilities, subject to the contract. A share purchase is different. You acquire ownership of the company itself, which continues to hold its assets, contracts, staff and liabilities. That makes a wider investigation particularly important.
The aim is not to eliminate every risk. Most businesses have some. The aim is to identify material risks early, understand their likely cost, and decide who should carry them after completion.
The key areas of business purchase due diligence
Financial performance and tax position
Financial records tell you whether the business has generated the earnings claimed by the seller and whether those earnings are likely to continue. Your accountant will usually examine profit and loss statements, balance sheets, BAS records, tax returns, bank statements, aged debtors and creditors, stock records, payroll information and forecasts.
Look beyond headline revenue. A business may have strong sales but thin margins, slow-paying customers or a reliance on one client. You should also ask whether expenses have been understated, whether the owner has performed work that will need to be replaced by paid staff, and whether stock is saleable at its recorded value.
Tax requires particular attention. Unpaid GST, PAYG withholding, payroll tax or income tax can create significant exposure, especially in a share sale. Your advisers should also consider the GST treatment of the transaction. A sale may be treated as the sale of a going concern where the legal requirements are met, but this should never be assumed.
Company, ownership and security interests
You need confirmation that the seller owns the assets being sold and has authority to sell them. For a company purchase, this includes reviewing the company constitution, ASIC records, share ownership, shareholder agreements, director resolutions and any options or rights held by others.
A search of the Personal Property Securities Register can reveal security interests over business assets. If a financier, supplier or another party has registered an interest, the asset may not be transferred free of that claim unless appropriate releases are obtained at settlement. This is a practical issue that can affect vehicles, equipment, stock and other assets central to the business.
It is also worth checking whether there are loans from directors, related-party arrangements or guarantees that need to be repaid, released or dealt with before completion.
Contracts, customers and suppliers
The business may rely on contracts that cannot simply be handed over to a buyer. Customer agreements, supplier arrangements, distribution rights, franchise documents, finance agreements and software licences can contain assignment restrictions, change-of-control clauses or termination rights.
If a major contract needs consent, make that consent a condition of completion rather than an informal expectation. The same applies where a key supplier is prepared to deal with the current owner but has not agreed to continue on the same terms with you.
Consider concentration risk as well. If one customer provides 40 per cent of turnover, a change in that relationship can materially alter the value of the acquisition. A sensible due diligence process asks not just what contracts exist, but whether the commercial relationships behind them are stable.
Premises, leases and property issues
For many businesses, the premises are fundamental. A cafe without a viable lease, a warehouse with poor access, or a retail shop facing a major rent increase can quickly become an expensive acquisition.
Review the lease term, options, rent review provisions, outgoings, incentives, make-good obligations, permitted use and any existing breaches. In NSW, retail leases have specific requirements under the Retail Leases Act 1994 (NSW), although not every commercial lease falls within that regime. The landlord’s consent may be required to assign the lease, and the landlord may require financial information or a personal guarantee from the buyer.
Where the purchase includes commercial property, the legal review should extend to title, zoning, easements, planning controls, council approvals, development consents and environmental matters. A business may operate from a site today without having every approval needed for its current use or planned expansion.
Employees and workplace obligations
Employees are often the most valuable part of a business and one of its most complex obligations. Due diligence should cover employment contracts, award coverage, pay rates, leave balances, superannuation, workers compensation, workplace policies, disciplinary issues and any current or threatened claims.
The Fair Work Act 2009 (Cth) can impose obligations on a purchaser where there is a transfer of business. Depending on the circumstances, employee service may carry across and existing industrial instruments may continue to apply. The treatment of annual leave, long service leave and other entitlements should be clearly allocated in the sale contract.
Do not rely on a seller’s assurance that staff will remain after settlement. Speak carefully and at the right time, consistent with confidentiality obligations, about who is essential to the operation and what retention arrangements may be needed.
Licences, compliance and disputes
A business may require licences, registrations, accreditations or approvals to operate lawfully. Examples include liquor licences, food business registrations, trade licences, planning approvals, transport permits and industry-specific authorisations. Some can be transferred, some require a new application, and some may be affected by a change in ownership or management.
You should also investigate complaints, regulatory notices, litigation, insurance claims, debts, product recalls and privacy or data security incidents. These matters may not always appear in financial statements, yet they can create direct cost, reputational damage and operational disruption.
Turning findings into contract protection
Due diligence only adds value when its findings are reflected in your decision and the sale documentation. If an issue is capable of being fixed, the contract can require the seller to fix it before completion. If an issue cannot be resolved, you may negotiate a lower price, a retention amount, an indemnity or a right to terminate.
Warranties are also important. They are contractual promises by the seller about matters such as ownership, accounts, compliance, contracts and disputes. However, a warranty is only as useful as the seller’s ability to meet a claim after completion. For larger or higher-risk transactions, buyers may seek specific indemnities, security arrangements or part of the purchase price held back for an agreed period.
Disclosure needs to be managed carefully. Sellers commonly provide documents through a data room and may seek to qualify their warranties by what has been disclosed. The legal effect of those disclosures should be reviewed, not accepted as standard wording.
When should you start?
Start as soon as the opportunity is serious enough to justify professional advice. Ideally, a preliminary review occurs before a letter of intent, heads of agreement or offer becomes binding. If you need to sign an initial document, ensure it clearly states which provisions are binding and gives you adequate time and access to conduct due diligence.
The right timeframe depends on the business. A small local business with straightforward assets may be reviewed relatively quickly. A company with multiple sites, employees, regulated activities or property interests requires more time. Rushing because settlement dates are tight can leave you negotiating from a weak position.
A commercial lawyer can coordinate the legal review, identify the documents that matter, advise on the transaction structure and negotiate protections that match the risks found. Your accountant, finance broker and industry advisers may also play an important role. Clear communication between advisers prevents gaps and keeps the process focused on practical outcomes.
Buying a business is a major commitment, but the right questions asked early can save far more than they cost. Before you sign, make sure the business you are buying is the business you expect to own.
