Contract Disputes
Learn what contract disputes are, the risks they pose, common examples in commercial setting, and how they are resolved in Australia.
Written by: Mark Lazarus, Commercial Lawyer, Director of Lazarus Legal
Published: 22 January 2026
Legal Disclaimer: The information on this page is general in nature and is not intended to constitute legal advice. It does not take into account your personal circumstances. Laws and legal processes can change, and their application varies between cases. You should seek independent legal advice before acting on any information on this page.
What Is A Contract Dispute?
A contract dispute arises when two or more parties to a legally binding agreement cannot agree on what the contract requires, whether obligations have been met, or how specific contract terms should be applied in practice.
Contract disputes are distinct from the outcomes they may lead to. A dispute itself is the disagreement. The outcome might be negotiation, mediation, arbitration, or court proceedings. Many commercial contract disputes are resolved without formal legal action.
These disagreements typically emerge during the performance of a contract when expectations, interpretations, or circumstances differ between the parties involved. They can range from minor misunderstandings to significant commercial conflicts affecting ongoing business relationships.
Common Causes Of Contract Disputes
Most contract disputes in commercial settings stem from a small number of recurring issues:
Unclear or ambiguous contract terms that allow multiple interpretations, including technical language, industry standards, or what was actually promised
Failure to perform obligations as outlined in the contract, whether partially or completely
Payment disputes including late payment, non-payment, disputed amounts, or disagreement over invoicing terms
Delays in delivery of goods, services, or milestones without adequate explanation or contractual protection
Changes in scope where one party believes additional work falls within the original agreement and the other disagrees
External factors such as supply chain disruptions, regulatory changes, or economic conditions that affect contract performance
Common Examples Of Contract Disputes in Commercial Settings
Contract disputes occur across all industries and businesses types. The following examples illustrate how disputes commonly arise in specific commercial contexts, though the underlying principles apply broadly across different sectors and contract types.
Building and Construction Contract Disputes
Construction contract disputes are among the most common commercial conflicts in Australia. They frequently involve:
- Payment claims under the Security of Payment legislation, including disputed progress claims or retention amounts
- Defective work where one party alleges the work does not meet the contract standard or building code requirements
- Variations and scope changes with disagreements over whether additional charges apply or whether work was within the original scope
- Project delays caused by weather, supply issues, or coordination problems, with disputes over extension of time claims
- Certifications and approvals where practical completion or final inspections are contested
Building contract disputes often escalate quickly due to cash flow pressures and the involvement of multiple subcontractors and parties.
Employment Agreement Disputes
In commercial employment settings, disputes commonly arise around:
- Restraint of trade clauses when senior employees or executives leave to join competitors or start similar businesses
- Confidentiality and intellectual property where ownership of work product or use of information is contested
- Termination terms including notice periods, redundancy payments, or the validity of termination for cause
- Performance expectations where KPIs, targets, or role scope are disputed
- Contractor versus employee classification affecting tax, superannuation, and entitlement obligations
These disputes typically involve key personnel where the financial and operational stakes are significant for the business.
Commercial Lease Disputes
Disputes in commercial leases between landlords and tenants frequently concern:
- Rent reviews and increases based on market reviews or CPI adjustments
- Make-good obligations at lease end, with disagreement over the required standard or scope of works
- Permitted use and alterations where tenants seek changes the landlord contests
- Repair and maintenance responsibilities particularly for structural issues or common areas
- Early termination rights and whether break clauses or breach provisions have been properly exercised
Commercial lease disputes can significantly impact business operations and cash flow for both parties.
Shareholder and Partnership Agreement Disputes
Internal business disputes under shareholder or partnership agreements often involve:
- Management decisions and voting rights where shareholders disagree on strategic direction or operational matters
- Dividend and profit distribution including timing, amounts, and priority
- Exit mechanisms and buy-sell provisions when a shareholder wants to leave or others want them removed
- Capital contributions and funding obligations during expansion or financial difficulty
- Breach of directors’ duties or fiduciary obligations within closely held companies
These disputes can threaten business continuity and require careful navigation to preserve working relationships where possible.
Contract Disputes VS Related Legal Concepts
The term “contract dispute” is often used interchangeably with breach, repudiation, or rescission, but these concepts have distinct legal meanings that affect how businesses should respond. Understanding the distinction can help businesses assess their position accurately.
Contract disputes refer to any disagreement about the contract itself, including interpretation, performance, or entitlements, and may or may not involve an actual breach.
Breach of contract occurs when a party fails to fulfil an obligation under the contract, which can trigger a dispute, though not all disputes involve a clear breach.
Repudiation is a serious form of breach where one party demonstrates they will not perform their fundamental obligations, potentially giving the other party a right to terminate.
Rescission involves unwinding a contract as though it never existed, making it distinct from disputes about contract performance.
Each concept can form the basis of a contract dispute, but they operate at different levels and carry different legal consequences.
How To Deal With A Contract Dispute
If You Are Raising the Dispute
- Review the contract thoroughly to confirm your understanding of the relevant terms and what was actually agreed
- Gather supporting documentation including emails, invoices, delivery records, meeting notes, and any correspondence about the issue
- Document the specific issue in writing, referencing the contract clauses you believe support your position
- Consider the commercial relationship and whether preservation of the business relationship is important
- Communicate clearly and professionally by sending a formal notice outlining the issue and your proposed resolution
- Allow reasonable time for response before escalating, unless urgent commercial circumstances require immediate action
- Explore resolution options including negotiation or mediation before committing to formal proceedings
If a Dispute Is Raised Against You
- Review the claim carefully against the actual contract terms rather than assumptions about what was agreed
- Assess the commercial and legal merit of the claim, including whether it identifies a genuine breach or interpretation issue
- Gather your own records to understand what was performed, communicated, and delivered
- Consider your risk exposure including potential damages, costs, and impact on business operations
- Respond in writing within any timeframes specified in the contract or reasonable commercial timeframes
- Seek to understand the other party's position and whether there is room for commercial compromise
- Evaluate resolution costs against litigation or arbitration costs and reputational impact
How Contract Disputes Are Commonly Resolved
Australian commercial contracts typically provide for disputes to be resolved through a hierarchy of processes before court proceedings.
Negotiation remains the most common and cost-effective method for resolving contract disputes. Parties communicate directly to reach a compromise or clarify misunderstandings without third-party involvement.
Mediation involves a neutral third party facilitating discussion between the disputing parties. The mediator does not make binding decisions but helps parties find common ground. Many commercial contracts require mediation before litigation.
Arbitration is a private process where an arbitrator hears evidence and makes a binding decision. It is common in construction, shipping, and international commercial contracts. Arbitration decisions are generally final with limited appeal rights.
Expert determination is used where technical or specialist knowledge is required. An independent expert in the relevant field makes a binding determination on specific issues like valuation, quality standards, or technical performance.
Court proceedings are the formal litigation process. They are typically the last resort due to cost, time, and public nature. However, some disputes require judicial determination, particularly where legal principles need clarification or injunctive relief is needed.
Many commercial contracts include dispute resolution clauses requiring parties to attempt alternative dispute resolution before commencing court proceedings. Resolving contract disputes efficiently often depends on following these contractual processes.
Why Seek Legal Help For Contract Disputes
Businesses commonly seek legal input when contract disputes involve significant commercial stakes, genuinely unclear interpretation of complex terms, or formal processes like adjudication or arbitration. Legal advice is also frequently sought when the other party has engaged lawyers or when direct negotiation attempts have not resolved the disagreement.
Legal input typically focuses on assessing the strength of positions, identifying risks and exposures, and evaluating resolution options. Early advice can sometimes prevent disputes from escalating or help businesses understand weaknesses in their position before committing to formal proceedings.
Summary
- Contract disputes arise from disagreements about rights, obligations, or interpretation under commercial agreements.
- Common causes include unclear terms, performance issues, payment disputes, delays, and communication breakdowns.
- Contract disputes differ from breach, repudiation, and rescission, though these concepts often overlap
- Businesses raising disputes should document issues clearly and explore resolution before escalating.
- Businesses facing disputes should assess merit honestly and respond appropriately to manage risk.
- Most disputes are resolved through negotiation, mediation, or other alternative dispute resolution before court.
- Legal input is commonly sought when stakes are high, interpretation is complex, or formal processes are required.
About Mark Lazarus – Director, Lazarus Legal
Admitted in both Australia and the UK, Mark brings more than two decades of global legal experience to Lazarus Legal. Having worked as a barrister, in private practice, and as in-house counsel for a major international consumer brand he combines courtroom-honed advocacy with commercial insight. Specialising in commercial law, intellectual property and dispute resolution, Mark advises startups, creative businesses, and established enterprises on transactions, trademarks, contract drafting, and litigation strategy. His cross-jurisdictional background and history as a former in-house legal director give clients confidence that their legal issues will be managed with both strategic foresight and commercial realism.