A contract of sale is the document that records the legal agreement between the buyer and seller. It sets out the property, price, deposit, settlement date and conditions that both sides agree to follow.

It can be tempting to think of the contract as paperwork that simply confirms the deal. In practice, it is the document that controls what happens if finance is delayed, an inclusion is missing, a search reveals an issue, a tenant is still in place or one party is not ready to settle.

For buyers, the contract is where expectations become obligations. If a term is missing, unclear or unfavourable, it may be difficult to fix after signing. That is why a contract review before signing is not just a formality. It is a risk check.

A contract of sale tells you what you are buying, what you are paying, when settlement happens, what is included, what conditions apply and what can happen if something goes wrong.

What is a contract of sale?

A contract of sale is the main legal document used when a property is sold. It records the agreement between the seller and the buyer and usually includes both standard terms and property-specific details.

The contract identifies the parties, the property, the purchase price, the deposit, the settlement date and the terms that govern the transaction. It may also include disclosure material, title documents, plans, certificates, searches, strata records, leases or special conditions depending on the property and the state or territory.

The contract matters because it is the reference point if there is a dispute. If the buyer expects an appliance to stay, the contract should make that clear. If the buyer needs finance approval, the contract should deal with that risk properly. If the seller needs to provide vacant possession, the contract should say so.

What a contract usually includes

Every contract is different, but most residential property contracts contain a similar set of core components. The language and required documents vary between states and territories, but buyers should expect to see a mix of transaction details, title information, standard conditions and special conditions.

• Front page or contract scheduleThe summary details usually include the buyer, seller, property address, price, deposit, settlement period, selling agent and legal representatives.
• Standard termsThese are the default legal conditions that govern settlement, risk, adjustments, default, notices and other process issues.
• Special conditionsThese are additional or amended terms that can change the normal position. They deserve careful attention because they may shift risk toward the buyer.
• Title documentsThese identify the land being sold and may disclose easements, covenants, restrictions, caveats, mortgages or other registered interests.
• Plans and certificatesThese may include deposited plans, strata plans, planning certificates, zoning information, drainage diagrams or other prescribed disclosure documents.
• Property-specific documentsDepending on the property, the contract may include leases, by-laws, strata material, off-the-plan documents, building information or other annexures.

The terms buyers should check first

The most obvious terms are the price and settlement date, but they are not the only important terms. Buyers should review the contract as a practical ownership document, not just a price document.

Property description

Check that the property being sold is the property you think you are buying. This includes the title reference, lot number, plan number, car space, storage cage, garage, courtyard, balcony rights and any other area you expect to own or use.

This is especially important for apartments, townhouses, duplexes, strata properties and properties with parking or storage. Do not assume a car space is included just because it was shown during the inspection.

Purchase price and deposit

The contract should state the price and the deposit amount. Buyers should understand when the deposit is due, how it must be paid and what happens if the buyer cannot complete.

A deposit is not just a reservation fee. Once the contract is binding, default can have serious consequences. If you need a deposit bond, bank guarantee or reduced deposit, that should be agreed before signing.

Settlement date

The settlement date is when the transaction is completed and ownership transfers. Buyers should check whether the settlement period gives enough time for finance approval, loan documents, first home buyer concessions, settlement preparation and funds to be ready.

A short settlement can be useful if everyone is ready. It can be risky if the lender is still processing approval or mortgage documents. Lender delays can become the buyer’s problem under the contract.

Cooling-off position

Cooling-off rules vary by state and territory. In some private treaty purchases, a buyer may have a limited period to withdraw after signing, usually with a cost. In other cases, there may be no cooling-off period, or it may be waived.

Auction contracts are usually unconditional. If you are buying at auction, contract review and due diligence should happen before auction day.

Finance wording

If the purchase depends on loan approval, the finance wording matters. A vague understanding with the agent is not the same as a properly drafted finance condition in the contract.

Buyers should confirm the finance approval deadline, what must happen by that date, how notice must be given, and what happens if finance is not approved. Pre-approval does not always protect you. Formal approval for the specific property is what matters.

Inclusions and exclusions

The contract should identify what stays with the property and what does not. Common inclusions include fixed floor coverings, blinds, curtains, light fittings, dishwashers, ovens, air-conditioning units, remote controls, pool equipment and built-in appliances.

If something matters, make it explicit. Do not rely on verbal statements or assumptions from an open home. If the seller is removing an item, that should also be clear.

Vacant possession or subject to lease

A property may be sold with vacant possession, meaning the buyer expects the property to be empty at settlement. Alternatively, it may be sold subject to an existing lease, meaning the buyer takes the property with the tenant in place.

This term is critical for both owner-occupiers and investors. An owner-occupier planning to move in needs to know whether a tenant has a right to stay. An investor needs to understand the lease terms, rent, bond, arrears, notice periods and property management transition.

Adjustments

Settlement adjustments divide costs such as council rates, water charges, strata levies, land tax or other outgoings between buyer and seller. The contract will usually set out how those amounts are handled.

Adjustments can affect the final amount the buyer needs to contribute at settlement. Buyers should ask for an estimate and keep a cash buffer because final figures may not be known until close to settlement.

Why special conditions matter

Special conditions can override, add to or change the standard terms. This is where risk often hides. A special condition may shorten timeframes, limit claims, change adjustment rules, make certain items the buyer’s responsibility or require settlement even if a particular issue exists.

Not every special condition is bad. Some are routine or necessary for the transaction. The issue is that buyers need to understand what each condition does before signing.

Gotcha:

The words “standard contract” do not mean “standard risk”. A contract can look ordinary on the front page but contain special conditions that materially change the buyer’s position.

Why wording matters

Small wording differences can have a real effect. A contract might say the property is sold with vacant possession, or it might be sold subject to an existing lease. It might allow a standard settlement period, or it might require completion sooner than your lender can manage.

The contract might clearly include appliances you expect to stay, or it might leave them unclear. It might include a finance condition with workable dates, or it might make the purchase unconditional. It might disclose an easement or restriction that affects future plans.

The practical problem is simple: buyers often discover wording issues too late. Once a contract is exchanged, amendments usually require agreement from the seller. The seller does not have to change the contract just because the buyer later realises a term is unfavourable.

Contract issues that can affect first home buyers

First home buyers should pay close attention to timing and eligibility. The contract may affect finance approval, first home buyer grants, duty concessions, insurance obligations and when the buyer can move in.

If a grant or concession applies, there may be forms, deadlines, eligibility rules and occupancy requirements. If finance is still conditional, the settlement date and finance wording become critical. If the buyer plans to move in immediately after settlement, vacant possession and final inspection become practical priorities.

First home buyers should also be careful with pressure. Being told “someone else is interested” does not make the contract safer. If the property is worth buying, it is worth understanding before signing.

Contract issues that can affect investors

For investors, the contract can affect rental timing, land tax adjustments, strata obligations, tenancy transition, settlement planning and cash flow. If the property is tenanted, review the lease and rental details carefully.

Investors should check whether rent is paid up to date, whether there are arrears, what bond is held, whether the tenant is on a fixed-term or periodic lease, and whether any notices or disputes exist. A property advertised with a rental figure should still be tested against the documents.

For strata or body corporate properties, investors should also check levies, special levies, by-laws, maintenance issues and restrictions that could affect tenant appeal or short-term letting.

Searches and disclosure documents

Contracts often include searches and disclosure documents, but buyers should not assume everything relevant is already attached. Depending on the state or territory and the property type, further searches may be recommended.

Searches may reveal title interests, planning controls, zoning, drainage information, council matters, water charges, land tax, road proposals, contaminated land issues, heritage matters, strata information or other risks.

The right searches depend on the property. A vacant block, freestanding house, apartment, townhouse, rural property and off-the-plan purchase can each raise different issues.

Off-the-plan contracts need extra care

Off-the-plan contracts are usually more complex than established property contracts. The buyer is committing before the property is complete, so the contract may include plans, draft by-laws, sunset dates, developer rights, variation clauses and disclosure statements.

Buyers should understand what can change before completion, when settlement may occur, what happens if construction is delayed and what rights exist if the final property differs from what was expected.

This does not mean off-the-plan is always risky. It means the contract needs a more careful review because the buyer is relying on future delivery, not just an existing property inspection.

Before you sign

Before signing, buyers should know what they are buying, what is included, when settlement occurs, what conditions apply, what searches are attached, what is missing and what risks still need to be checked.

A contract review is not about making the document complicated. It is about making it understandable. The aim is to identify the terms that matter before they become binding obligations.

• Know the property: Confirm the land, lot, car space, storage, fixtures, title details and any rights or restrictions.
• Know the timing: Check settlement, cooling-off, finance dates, report dates and any deadline for notices.
• Know the money: Understand deposit, duty, adjustments, fees, lender costs and funds to complete.
• Know the conditions: Confirm whether the contract is conditional or unconditional, and what each condition requires.
• Know the risks: Identify missing reports, unusual clauses, title issues, tenant issues, strata issues or finance uncertainty.

Questions to ask before committing

1. Has my conveyancer or solicitor reviewed the contract?
2. Is the property being sold with vacant possession or subject to a lease?
3. Are all inclusions I expect clearly listed?
4. Is the settlement date realistic for my lender?
5. Do I have a cooling-off period, and has it been waived?
6. If I need finance, is the contract properly conditional on finance?
7. Are there any special conditions that shift risk to me?
8. Are there title restrictions, easements, covenants or other interests?
9. Are further searches, inspections or reports needed?
10. What happens if I cannot settle on time?

When to slow down

Slow down if the contract has not been reviewed, the settlement period is short, finance is not confirmed, the contract is unconditional, special conditions are unclear, reports are missing, the property is tenanted and you want to move in, or the agent is pushing for a fast signature.

Also slow down if the property is off-the-plan, affected by strata issues, subject to unusual title interests or being purchased with grant, concession or SMSF requirements. These situations can be manageable, but they need proper sequencing.

The contract is not just an administrative step. It is the rulebook for the purchase. If something is unclear, ask before signing.

Final takeaway

A contract of sale sets out the legal and practical framework for the purchase. It tells the buyer what is being bought, what is included, when settlement happens, what conditions apply and what obligations each side must meet.

Good contract review gives buyers clarity. It can help identify risks, confirm timing, protect finance planning, clarify inclusions, expose title issues and reduce settlement surprises.

Once the contract is exchanged, changes usually require agreement from the seller and may not be available. The safest time to understand the contract is before you sign it.

This article is general information only and is not legal, financial, tax or property advice. Contract requirements, cooling-off rights, disclosure obligations and settlement rules vary by state and territory. Buyers should obtain advice on the specific contract before signing or committing to a property purchase.