Ask a contract lawyer what fills most of their week, and the answer is rarely courtroom drama. It’s agreements: quiet, practical documents that decide who does what, who pays whom and what happens if plans change. For businesses across Australia, from sole traders to growing companies, the same handful of agreements come up again and again. Knowing what they are makes it easier to spot when you need one, and what to ask for. This friendly guide walks through six common types, what each is for and what to think about before signing. It is general information, not legal advice, and the rules that apply to you can vary, so please treat it as a starting point.
Every business runs on promises, and agreements are how those promises get written down. The Australian Bureau of Statistics counted 2,814,778 actively trading businesses in Australia at 30 June 2026, and each one depends on some mix of contracts with owners, staff, customers and suppliers.
Here are six types that a contract lawyer is often asked to draft or review, starting with the ones that shape ownership.
1. Shareholder Agreements
When more than one person owns a company, a shareholder agreement sets the ground rules. It usually covers how decisions are made, what happens if someone wants to sell and how disagreements are handled. It matters most when things change, such as a new investor, a departing founder or a disagreement about direction. Without one, owners may have to rely on default rules that don’t suit their situation.
2. Partnership and Joint Venture Agreements
Partnerships and joint ventures bring two or more parties together, so clarity is essential. A good agreement spells out:
- Who contributes money, time or assets
- How profits and losses are shared
- Who makes day-to-day and major decisions
- How the arrangement ends, and what happens to shared assets
Writing these points down while everyone is on good terms is far easier than negotiating them later in a dispute.
3. Confidentiality (NDA) Agreements
Before sharing pricing, plans or customer details with a potential partner, supplier or investor, many businesses ask for a non-disclosure agreement. It states what counts as confidential, how it may be used and for how long it must be protected.
Owners who aren’t sure whether a document is balanced often ask a contract lawyer to read it first, since a clause that looks routine can be wider than expected. Check that the definition of confidential information is clear and that the duration is reasonable.
4. Service and Contractor Agreements
If you hire a contractor, consultant or supplier, a written agreement protects both sides. It should describe the work, the timeline, how payment works and who owns the finished result. Good ones also say what happens if the work is late or doesn’t meet the agreed standard. This is also where it helps to be careful about whether someone is genuinely a contractor or more like an employee, as the way the relationship really works can matter more than the label.
5. Commercial Lease Agreements
A commercial lease is often one of a business’s biggest commitments. Key points include the length of the term, rent reviews, who pays outgoings and repairs, options to renew and what must be restored when you leave. Reading these terms before signing, and asking questions about anything unclear, can prevent expensive surprises years later.
6. Business Sale Agreements
Buying or selling a business involves detailed terms: what is being sold, the price and how it is paid, what promises each side makes about the business, and what happens if something turns out to be wrong. Because the stakes are high, the details deserve slow, careful attention from both sides.
Where Specialist Support Fits In
Simple, low-risk agreements may only require a careful review, while larger or more complex arrangements can benefit from tailored legal drafting. Prosper Law, an Australian law firm, lists contract drafting, review, and negotiation among its services for businesses, covering agreements such as shareholder, partnership, joint venture, confidentiality, and business sale contracts. When seeking legal support, ask how the adviser will address your specific needs, how fees are calculated, and who will manage your matter before making a decision.
Preparing for a Drafting Conversation
Whichever agreement you need, you’ll get more from a lawyer, and spend less, if you arrive prepared. Bring:
- The names and structure of everyone involved
- The key commercial terms you’ve already agreed
- Any earlier emails, quotes or term sheets
- A list of your worries, such as late payment or leaving early
- Your timeline, including any hard deadlines
A clear brief helps a lawyer write something that fits your situation instead of a generic form.
When a Template Is Enough
Templates can work for routine matters with low stakes, as long as you read every clause and adjust it to your facts. They are riskier when the deal involves significant money, long terms, shared ownership or intellectual property. A useful test is to ask what would happen if the agreement went wrong. If the answer is unpleasant, spend time getting it right.
Conclusion
Business agreements aren’t about distrust. They are about making sure everyone shares the same expectations before money, time and relationships are on the line. Shareholder, partnership, confidentiality, service, lease and sale agreements cover most of what growing businesses need, and each is easier to handle when you prepare, ask questions and read the details. When the stakes are high or the terms unclear, a qualified lawyer can help you understand your options and protect your interests.
