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NSW Homeowners Guide to
Security of Payment Law
Understand your rights and manage the risks when builders serve payment claims under SOPA.
You can be confident that you are getting the right legal advice.
Homeowners in NSW must understand the risks of the Building and Construction Industry Security of Payment Act 1999 (SOPA). This law grants builders the right to progress payments and provides a fast-track payment enforcement process. Without proper knowledge, homeowners can find themselves disadvantaged when disputes arise. This guide provides an overview of SOPA risks and practical tips to manage them effectively.
BOOK YOUR FREE FIRST CONSULTWhat Homeowners Should Do
Before Contracting
From 1 March 2021, home owner residential building contracts in NSW became subject to the Building and Construction Industry Security of Payment Act 1999 (NSW). This significant change means homeowners now face the same expedited payment enforcement regime that has long applied to commercial construction projects.
Standard Form Contracts and SOPA
Whilst the Master Builders Association (MBA), Housing Industry Association (HIA), and Office of Fair Trading (OFT) standard form contracts do not expressly make provision for the application of SOPA, the parties are bound by the legislation regardless. Owners are at risk of savvy builders using this expedited method for payment enforcement. Despite the contracts not expressly addressing SOPA, the SOPA terms are implied into the home building contract by operation of law.
Mandatory SOPA Information Requirements
Section 7 of the Home Building Act 1989 and relevant Regulation requires a contract for residential building work to include information in the approved form that explains the operation of SOPA. A copy of the current version of the form from February 2021 is available on the NSW Fair Trading website. Owners should ensure this form is included in their contract before signing. If your builder has not provided this information, this may indicate they are not fully compliant with their statutory obligations.
The Importance of Pre-Contract Legal Review
Before signing any home building contract, homeowners should have the contract reviewed by a construction lawyer. This review can identify special conditions that may reduce your rights, shortened timeframes for responding to payment claims, and unfavourable payment terms. Understanding your obligations under SOPA before construction begins is far more effective than trying to manage disputes after they arise.
Standard Form Contracts and SOPA
Whilst the Master Builders Association (MBA), Housing Industry Association (HIA), and Office of Fair Trading (OFT) standard form contracts do not expressly make provision for the application of SOPA, the parties are bound by the legislation regardless. Owners are at risk of savvy builders using this expedited method for payment enforcement.
Mandatory SOPA Information Requirements
Section 7 of the Home Building Act 1989 requires a contract for residential building work to include information explaining the operation of SOPA. Owners should ensure this form is included in their contract before signing.
The Importance of Pre-Contract Legal Review
Before signing any home building contract, homeowners should have the contract reviewed by a construction lawyer. This review can identify special conditions that may reduce your rights and unfavourable payment terms.
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Learn more about the 2021 changes to SOPA for owner-occupiers.
Understanding the Tight Timetable
Imposed by SOPA
One of the key risks associated with SOPA is the tight timetable imposed on parties to construction contracts. Missing deadlines under SOPA can result in serious consequences, including losing the right to dispute a payment claim or having the claimed amount become a statutory debt. To avoid loss of rights, it is extremely important that homeowners understand these critical timeframes.
Payment Schedule Timeframes
The owner must serve a payment schedule within the required period after receiving a payment claim. Under the standard form industry templates such as HIA, MBA, and OFT contracts, the time for owners to issue a payment schedule remains 10 business days despite shorter payment terms that may apply. Critically, the payment schedule must include all reasons for withholding payment. Any reason not included in the payment schedule cannot be relied upon later if the matter proceeds to adjudication.
What Constitutes a Valid Payment Schedule
The builder will assess whether any response received from the owner amounts to a valid payment schedule. The requirements for a payment schedule are relatively loose, which can work against homeowners who respond informally without realising they have created a payment schedule. Owners should expressly specify that their payment schedule is made under SOPA to mitigate risks associated with failing to issue a compliant payment schedule.
Watch for Modified Contract Terms
Savvy builders often include special conditions in their building contracts to make terms already favourable to the builder more unfavourable to the owner. Owners should carefully review their contracts to ensure that their builder has not reduced the number of days the owner has to issue a payment schedule. Some contracts may specify shorter response periods than the standard 10 business days, which can catch unprepared homeowners off guard.
Payment Schedule Timeframes
The owner must serve a payment schedule within 10 business days under standard form contracts. Critically, the payment schedule must include all reasons for withholding payment. Any reason not included cannot be relied upon later in adjudication.
What Constitutes a Valid Payment Schedule
The requirements for a payment schedule are relatively loose, which can work against homeowners who respond informally. Owners should expressly specify that their payment schedule is made under SOPA.
Watch for Modified Contract Terms
Savvy builders often include special conditions to make terms more unfavourable to the owner. Check that your builder has not reduced the number of days you have to issue a payment schedule.
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Understand the progress payment changes under SOPA.
The Payment Claim Process
Understanding how payment claims work under SOPA is essential for homeowners to protect their interests and respond appropriately within the required timeframes.
Reference Dates and Payment Claims
The builder's entitlement to make a claim under SOPA arises from a reference date. The reference date is specified in the contract. The parties can agree on the due date for progress payments, but Section 8 of SOPA provides that if the contract does not specify the reference date, then the default under SOPA will apply. Most home building contracts allow the builder to issue progress claims upon practical completion of each stage of works. Simply put, a reference date is when the stage of works is practically complete.
What Can Be a Payment Claim
On each reference date, the builder may issue a payment claim on the owner. A payment claim can be a relatively informal document. It may be in the form of a tax invoice, email, or letter. So long as the document satisfies the low threshold requirements of section 13 of SOPA, it will be valid. In particular, the works must be described, the amount of the claim must be specified, and the document must state that the claim is made under SOPA. The requirements of a payment claim have a low benchmark and are relatively easy to satisfy, which means homeowners should treat any request for payment seriously.
Responding with a Payment Schedule
The homeowner has 10 business days to serve a payment schedule on the builder under standard form contracts. The payment schedule should specify the amount that the owner intends to pay the builder. If the amount proposed is less than the amount claimed by the builder, then the owner must also include reasoning for withholding payment. Owners should provide detailed reasons for withholding and supporting evidence as part of the payment schedule. Failing to do so may prevent the owner from relying on that information if the matter escalates to adjudication.
When to Seek Legal Advice
Owners should urgently obtain advice from a construction lawyer whenever they receive a claim for payment and the owner does not agree with the amount, the due date, or anything included in the claim. The tight timeframes under SOPA mean that delays in seeking advice can result in lost opportunities to properly dispute a claim. Contact a Security of Payment lawyer immediately.
Reference Dates and Payment Claims
The builder's entitlement to make a claim under SOPA arises from a reference date specified in the contract. Most home building contracts allow the builder to issue progress claims upon practical completion of each stage of works.
What Can Be a Payment Claim
A payment claim can be a relatively informal document - a tax invoice, email, or letter. So long as it describes the works, specifies the amount, and states it's made under SOPA, it will be valid.
Responding with a Payment Schedule
The homeowner has 10 business days to serve a payment schedule. If proposing to pay less than claimed, you must include detailed reasons for withholding payment with supporting evidence.
When to Seek Legal Advice
Obtain advice from a construction lawyer urgently whenever you receive a payment claim you disagree with. The tight timeframes mean delays can result in lost opportunities to dispute a claim.
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The Contractor's Actions After
Receiving a Payment Schedule
Once a homeowner serves a payment schedule, the builder has several options depending on whether they accept or dispute the scheduled amount. Understanding these options helps homeowners anticipate what may happen next.
If the Builder Disputes the Payment Schedule
If the homeowner serves a payment schedule, but the builder disputes the scheduled amount, the due date for payment, or the reasons for withholding, then the builder has 10 business days from receipt of the payment schedule to lodge and serve an adjudication application with an authorised nominating authority.
If the Builder Accepts but Payment Is Not Made
If the homeowner serves a payment schedule and the builder accepts it, but the homeowner does not make the payments provided for in the payment schedule, the builder may suspend work on 2 business days' notice pursuant to section 27 of SOPA. The builder is given statutory protection in relation to any action taken by the homeowner under the contract regarding such suspension. Additionally, the builder has 20 business days from the due date for payment to prepare and serve an adjudication application, in which case the homeowner has five business days after receiving the application to prepare and serve an adjudication response.
If No Payment Schedule Is Served
If the homeowner does not satisfy the payment claim or serve a payment schedule within the required timeframe, the amount claimed becomes a statutory debt pursuant to section 14(4) of SOPA. The builder may then either issue a section 17(2) notice notifying the homeowner within 20 business days of the due date for payment that the builder intends to apply for adjudication (in which case the homeowner has 5 business days from receipt of the notice to serve a payment schedule and the builder has 10 business days from the conclusion of that 5 business day period to apply for adjudication), or alternatively, the builder may commence court proceedings, which ends the process under SOPA.
If the Builder Disputes the Payment Schedule
If the builder disputes the scheduled amount, due date, or reasons for withholding, they have 10 business days from receipt to lodge and serve an adjudication application with an authorised nominating authority.
If the Builder Accepts but Payment Is Not Made
If the homeowner doesn't make the payments provided for in the payment schedule, the builder may suspend work on 2 business days' notice. The builder has 20 business days to prepare and serve an adjudication application.
If No Payment Schedule Is Served
If the homeowner doesn't serve a payment schedule within the required timeframe, the amount claimed becomes a statutory debt. The builder may issue a section 17(2) notice or commence court proceedings.
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The Adjudication Process
Adjudication under SOPA is a rapid dispute resolution process designed to determine payment disputes quickly. Understanding this process is critical for homeowners who find themselves facing an adjudication application.
Timeframes for Adjudication
Once the builder has served an adjudication application, the owner has five business days to serve an adjudication response. The adjudicator will then have 10 business days from the date of acceptance of the application to make a determination. These timeframes are strictly enforced, and extensions are rarely granted.
The Adjudication Hearing
During the adjudication process, the builder and owner will have the opportunity to present evidence and arguments to the adjudicator. The process is conducted on the papers, meaning there is typically no oral hearing. The adjudicator will then make a decision on the progress payment claim, taking into account the evidence and arguments presented by both parties. Importantly, the adjudicator can only consider reasons for withholding payment that were included in the payment schedule.
Engaging a Construction Law Specialist
Homeowners should engage a construction law specialist to advise and prepare the owner's adjudication response to give them the best chance of defending the payment schedule. The complexity of SOPA and the short timeframes involved mean that professional legal assistance is highly advisable. An experienced construction lawyer can help identify jurisdictional issues, prepare comprehensive submissions, and ensure all relevant evidence is properly presented. Contact a Security of Payment lawyer in Sydney for expert assistance.
Timeframes for Adjudication
Once the builder has served an adjudication application, the owner has five business days to serve a response. The adjudicator has 10 business days to make a determination. These timeframes are strictly enforced.
The Adjudication Hearing
The process is conducted on the papers with no oral hearing. The adjudicator can only consider reasons for withholding payment that were included in the payment schedule.
Engaging a Construction Law Specialist
Homeowners should engage a construction law specialist to advise and prepare the adjudication response. Professional legal assistance is highly advisable given the complexity and short timeframes.
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Enforcing the Adjudicator's
Determination
If the adjudicator makes a determination in favour of the builder, the owner must act quickly to satisfy the determination or face serious enforcement consequences.
Payment Deadline After Determination
If the adjudicator has made a favourable determination in favour of the builder, the owner must satisfy the determination within five business days. This is a very short timeframe, and homeowners should be prepared to make payment promptly if unsuccessful in the adjudication.
Builder's Enforcement Options
If the owner fails to satisfy the determination within five business days, the builder may take the following actions: suspend performance of the work on 2 business days' notice, and/or enter judgment with the court for the amount of the adjudication certificate issued by the adjudicator and enforce that as a judgment of the court.
Court Enforcement Powers
Upon receipt of a court judgment, the builder may also apply for an enforcement order with the court under the Contractor's Debt Act, which will require the owner to pay the amount determined by the adjudicator. The court has the power to make any order it considers appropriate to enforce the determination, including issuing a garnishee order for the builder to take the debt from the owner's bank account or deduct payments owing to the owner from the owner's employer.
Payment Deadline After Determination
If the adjudicator makes a determination in favour of the builder, the owner must satisfy it within five business days. Be prepared to make payment promptly if unsuccessful.
Builder's Enforcement Options
If the owner fails to satisfy the determination within five business days, the builder may suspend work on 2 business days' notice and/or enter judgment with the court.
Court Enforcement Powers
The court can make any order to enforce the determination, including a garnishee order to take the debt from your bank account or deduct payments from your employer.
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Setting Aside an Adjudication
Determination
While adjudication determinations are designed to be final for cashflow purposes, there are limited circumstances in which a determination can be challenged in the Supreme Court.
Grounds for Setting Aside
The Supreme Court has the power to set aside an adjudicator's determination if it is satisfied that the adjudicator acted beyond their jurisdiction, the determination was made as a result of fraud or corruption, or there was a failure to comply with the rules of natural justice. These grounds are narrowly interpreted, and successful challenges are relatively rare.
Jurisdictional Errors
Jurisdictional errors may include situations where the payment claim was not validly served, the construction contract was not covered by SOPA, or the adjudicator failed to properly consider the payment schedule. However, mere errors of fact or law within jurisdiction are generally not sufficient grounds to set aside a determination.
Natural Justice Requirements
A failure to comply with natural justice may occur if the adjudicator did not give a party a fair opportunity to present their case, or if the adjudicator determined matters not raised by the parties without giving them an opportunity to respond. Homeowners who believe an adjudication was conducted unfairly should seek legal advice promptly about potential judicial review options.
Grounds for Setting Aside
The Supreme Court can set aside a determination if the adjudicator acted beyond jurisdiction, there was fraud or corruption, or a failure to comply with natural justice. These grounds are narrowly interpreted.
Jurisdictional Errors
Jurisdictional errors may include invalid service of payment claim, contract not covered by SOPA, or failure to properly consider the payment schedule. Mere errors of fact or law are generally insufficient.
Natural Justice Requirements
Natural justice failures may occur if a party wasn't given fair opportunity to present their case. Seek legal advice promptly about potential judicial review options.
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Risks and Implications
for Homeowners
Owners should be aware that a favourable determination for the builder exposes owners to several significant risks. Understanding these risks can help homeowners make informed decisions about how to respond to payment claims and whether to engage legal assistance early in the process.
Lender and Mortgage Issues
Owners who have a lender or mortgage for payments under the construction contract are exposed to the lender not releasing payment because the value of the works actually on site is less than the amounts paid or payable to the builder. This can create serious financing complications during your build.
Credit and Financial Record Impact
The owner's financial record may be exposed to disrepute or default with creditors. In worse cases, the builder may garnish the owner's employer, meaning your wages could be directly affected to satisfy the debt owed under the determination.
Work Suspension Rights
The builder may lawfully suspend works despite the contract terms not expressly permitting the builder to do so. Under SOPA, this statutory right to suspend cannot be contracted out of, leaving homeowners without recourse to compel work to continue until payment is made.
Lender and Mortgage Issues
Owners who have a lender or mortgage for payments under the construction contract are exposed to the lender not releasing payment because the value of the works actually on site is less than the amounts paid or payable to the builder.
Credit and Financial Record Impact
The owner's financial record may be exposed to disrepute or default with creditors. In worse cases, the builder may garnish the owner's employer, meaning your wages could be directly affected.
Work Suspension Rights
The builder may lawfully suspend works despite the contract terms not expressly permitting the builder to do so. Under SOPA, this statutory right to suspend cannot be contracted out of.
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Practical Tips for Homeowners
As a homeowner, it is important to be aware of the rights and obligations of both parties under SOPA and the potential risks of non-payment. Here are practical tips to manage these risks effectively and protect your interests throughout your building project.
Pre-Contract Legal Review
Get your contract reviewed by a construction lawyer prior to signing the contract and have a construction lawyer available for consultation for timely advice throughout your project. Prevention is far more cost-effective than dispute resolution.
Understand Payment Terms
Understand the payment schedule and due dates for progress payments outlined in the construction contract. Know your reference dates and when payment claims are likely to be issued so you can plan accordingly.
Document Everything
Ensure that all payment claims are properly documented and payments are recorded. Keep copies of all correspondence, invoices, and payment receipts. Good records are essential if a dispute arises.
Respond Within Timeframes
Respond to payment claims within the required timeframe and include all reasons for withholding payment in the payment schedule. Missing deadlines can result in the claimed amount becoming a statutory debt.
Maintain Legal Relationships
Maintain a relationship with a construction lawyer in case you need to seek legal advice if there is a dispute over a payment claim or if the builder is seeking to suspend work or enter judgment with the court.
Pre-Contract Legal Review
Get your contract reviewed by a construction lawyer prior to signing. Prevention is far more cost-effective than dispute resolution.
Understand Payment Terms
Understand the payment schedule and due dates for progress payments outlined in the construction contract.
Document Everything
Ensure that all payment claims are properly documented and payments are recorded. Good records are essential if a dispute arises.
Respond Within Timeframes
Respond to payment claims within the required timeframe and include all reasons for withholding payment.
Maintain Legal Relationships
Maintain a relationship with a construction lawyer in case you need to seek legal advice if there is a dispute.
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Navigating the Security of Payment Act can be complex, especially when you are dealing with payment disputes, adjudication deadlines, and strict legal compliance requirements. If you are facing a situation where you need specialist construction law advice—whether you have received a payment claim you want to dispute, or you are preparing to issue a payment schedule—John Dela Cruz can provide clarity on your rights and practical guidance on your next steps. With over 17 years focusing exclusively on construction law, John helps homeowners understand their obligations under SOPA and defend their interests effectively.
Why Choose Contracts Specialist
John Dela Cruz
Principal Lawyer, Contracts Specialist
When you work with Contracts Specialist, you receive legal advice directly from John Dela Cruz — Principal Lawyer with over 17 years of exclusive construction law experience.
John is an Australian Legal Practitioner and he services NSW, Queensland, Victoria, and Tasmania. He has dedicated his entire legal career to specialise in construction law. As a former Divisional President of the Master Builders Association NSW, he combines deep legal expertise with comprehensive industry knowledge. He maintains daily experience in building dispute tribunals (NCAT, VCAT, QCAT) and courts across multiple jurisdictions.
Unlike generalist lawyers who handle various legal matters, John specialises exclusively in construction law matters affecting homeowners, builders, contractors, and subcontractors. You receive focused expertise from a lawyer who understands both the legal framework and the practical realities of the building industry.
How to Get Started
1
Book Your Free Consultation
Book your free consultation through our online calendar - choose a time that suits you. No cost, no obligation. You will have direct access to our Principal Lawyer from your very first conversation.
2
Discuss Your Matter with Our Principal Lawyer
Speak directly with John Dela Cruz, Principal Lawyer, about your construction law matter. We may request additional documents such as your building contract, payment claims, or correspondence to fully understand your situation.
3
Receive Your Cost Disclosure & Proceed
Receive a detailed cost disclosure outlining the scope of work and fees. Review and agree to proceed when you are ready - no hidden costs. Our fixed-fee approach means you know exactly what you are paying for.
1
Book Your Free Consultation
Book your free consultation through our online calendar. No cost, no obligation. Direct access to our Principal Lawyer from your very first conversation.
2
Discuss Your Matter
Speak directly with John Dela Cruz about your construction law matter. We may request additional documents to fully understand your situation.
3
Receive Cost Disclosure & Proceed
Receive a detailed cost disclosure outlining scope and fees. No hidden costs. Our fixed-fee approach means you know exactly what you are paying for.
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Get Expert Advice on Security of Payment Matters
Whether you have received a payment claim you want to dispute, need help preparing a payment schedule, or are facing an adjudication application, our Principal Lawyer provides specialist guidance with transparent fees and direct access.
Book your free consultation today - understand your legal rights under SOPA with no cost and no obligation.
Frequently Asked Questions
Common questions about Security of Payment for NSW homeowners.
Does the Security of Payment Act apply to my home building contract?
Yes, from 1 March 2021, the Building and Construction Industry Security of Payment Act 1999 (NSW) applies to residential building contracts for homeowner-occupiers. This means builders can use the expedited payment enforcement process under SOPA for progress payment disputes on your home build.
How long do I have to respond to a payment claim from my builder?
Under standard form contracts (HIA, MBA, OFT), you have 10 business days to serve a payment schedule after receiving a payment claim. However, your contract may specify a shorter period, so it is important to check your contract terms. Missing this deadline can result in the claimed amount becoming a statutory debt.
What happens if I do not serve a payment schedule in time?
If you fail to serve a payment schedule within the required timeframe, the amount claimed by the builder becomes a statutory debt under section 14(4) of SOPA. The builder can then either issue a section 17(2) notice and proceed to adjudication, or commence court proceedings to recover the debt.
Can my builder suspend work if I dispute a payment claim?
Yes, if you serve a payment schedule but fail to make the payments provided for in it, the builder may suspend work on 2 business days notice under section 27 of SOPA. This right cannot be contracted out of, even if your building contract does not expressly permit suspension.
What should I include in my payment schedule?
Your payment schedule should specify the amount you intend to pay and, if this is less than the amount claimed, all your reasons for withholding payment. Include detailed reasons and supporting evidence because you cannot rely on reasons not stated in your payment schedule if the matter proceeds to adjudication.
Can I challenge an adjudication determination that goes against me?
Adjudication determinations can only be set aside by the Supreme Court in limited circumstances: if the adjudicator acted beyond their jurisdiction, the determination resulted from fraud or corruption, or there was a failure to comply with natural justice. These grounds are narrowly interpreted and successful challenges are relatively rare.
Does SOPA apply to my home building contract?
Yes, from 1 March 2021, SOPA applies to residential building contracts for homeowner-occupiers in NSW.
How long to respond to a payment claim?
Under standard form contracts (HIA, MBA, OFT), you have 10 business days to serve a payment schedule.
What if I miss the payment schedule deadline?
The amount claimed becomes a statutory debt. The builder can proceed to adjudication or commence court proceedings.
Can my builder suspend work?
Yes, if you fail to make payments provided in your payment schedule, the builder may suspend work on 2 business days notice.
What to include in my payment schedule?
Specify the amount you intend to pay and all reasons for withholding payment with supporting evidence.
Can I challenge an adjudication determination?
Only in limited circumstances: jurisdictional errors, fraud/corruption, or failure to comply with natural justice rules.
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Related Resources
Explore more resources about Security of Payment and protecting your rights as a homeowner.
Security of Payment Lawyer Sydney
Learn how our specialist Security of Payment services can help you navigate payment disputes and protect your interests.
Learn More →Owner-Occupier SOPA NSW 2021 Changes
Understand the significant 2021 amendments that extended SOPA protections to residential building contracts for owner-occupiers.
Learn More →Security of Payment Act Changes to Progress Payments
Explore how changes to the Security of Payment Act affect progress payment claims and enforcement in NSW.
Learn More →→ Swipe to see all resources