Unpaid Construction Invoice NSW Under SOPA

An unpaid construction invoice can put immediate pressure on your cash flow. Whether you are a subcontractor, tradie, supplier, consultant, or small construction business in NSW, you may have options under the Building and Construction Industry Security of Payment Act.

Why unpaid construction invoices are different

Construction payments often involve progress claims, variations, retention amounts, back charges, and disputes about scope. That can make a simple unpaid invoice harder to chase. SOPA exists because delayed payment in construction can quickly affect everyone further down the chain.

What the Security of Payment Act can do

The Security of Payment Act gives eligible construction businesses a process for claiming payment. It can require the person receiving the claim to respond with a payment schedule by a deadline. If they do not respond properly, or if the amount remains disputed, the Act may allow you to take the matter to adjudication.

Option 1: Send a compliant payment claim

Your first option is often to issue a compliant payment claim. This is not just about sending another reminder email. A payment claim should clearly identify the work, goods, or services supplied, the amount claimed, and the basis for the claim. Getting this step right matters because later deadlines may depend on it.

Option 2: Watch for the payment schedule

After a payment claim is served, the respondent may need to provide a payment schedule. This document usually states how much they propose to pay and why. If they do not provide one in time, that can affect your next steps.

Option 3: Consider adjudication

Adjudication is a faster dispute process designed for payment claims under SOPA. It is not the same as going through a full court case. If the invoice is disputed or ignored, adjudication may help move the matter toward a decision about the amount payable.

What records should you keep?

• The invoice, quote, contract, purchase order, or work order.

• Emails, text messages, site instructions, and approval records.

• Photos, delivery dockets, timesheets, and proof the work or supply happened.

• A record of when the payment claim was sent and how it was served.

How SopaServe helps with unpaid invoices

SopaServe helps you organise unpaid invoice details and create a clearer SOPA-ready payment claim workflow. It is built for NSW construction businesses that want a more structured way to chase payment without drowning in admin.

Before you act

This article is general information only and is not legal advice. SOPA deadlines can be strict, and eligibility depends on the facts. If you are unsure, consider getting legal advice before serving a formal claim or starting adjudication.