Author
Domenic CalabrettaChief Executive Officer & ASIC Registered Liquidator
Many business owners use credit, leasing, or supplier terms every day, but are unsure how a PMSI actually works. That is more common than you think. Plenty of directors run profitable businesses for years without touching the term, until the day a customer goes under and unpaid stock is suddenly someone else's problem.
A PMSI, or purchase money security interest, is a type of security interest that gives certain creditors a stronger position over personal property if a customer cannot pay.
The Personal Property Securities Act 2009, known as the PPSA, sets the rules for these interests across Australia. And now, big reforms are on the way that affect how you register and protect a PMSI. This guide walks you through what’s changing and what you should do next.
What is a Purchase Money Security Interest (PMSI)?
A purchase money security interest, under the PPSA, is a security interest that secures repayment of the purchase price of specific collateral.
Under section 14 of the act, a PMSI arises in two common ways:
- A seller PMSI applies when you supply goods and keep an interest in them until you are paid, often through retention of title arrangements.
- A lender PMSI applies when a lender funds the purchase of an asset and takes security in that same asset.
In simple terms, you are the secured party, which means the person or business with the security interest. Your customer is the grantor, which means the party who grants that interest. The goods or assets are the collateral, which is the personal property you can claim if repayment is not made.
So why does this matter in 2026? The PPSA is being modernised, and while the PMSI concept is not new, the way it is interpreted, registered, and enforced is evolving. If your business supplies goods, finances equipment, or enters a PPS lease, this is something to understand now, not later.
How a PMSI works in real business situations
A PMSI is created through a security agreement that ties the debt to specific personal property. You will usually see this in everyday transactions.
The most common scenarios include:
- You supply goods on credit using retention of title terms.
- A lender finances equipment, a motor vehicle, or other business assets.
- You enter into leasing or hire arrangements, including a PPS lease.
For instance, you supply inventory to a customer on credit with a retention of title clause. The moment the goods are delivered, the PMSI attaches to that inventory. If the customer does not pay, you have rights over that collateral.
This applies across many industries, from stock supplied to retailers, to commercial consignment arrangements, to equipment leased to small businesses. If your business relies on deferred payment, a PMSI is already part of your risk position.
What is super priority, and how does it protect you?
A PMSI can achieve super priority, which means it can rank ahead of other secured creditors even if they registered earlier.
Under the PPSA, the general rule is first in time, meaning the first perfected security interests on the personal property securities register take priority. A perfected PMSI can override that rule if it is registered correctly and within the required timeframe.
Say, a bank holds a general security agreement over all present and after-acquired property of a borrower. That bank is a secured party with broad coverage. Later, you supply inventory to that same borrower and register a PMSI over that inventory.
If the borrower becomes insolvent, your perfected PMSI over that specific collateral can put you first in line for recovery of that inventory. The bank remains a secured creditor, but your PMSI priority applies to the goods you supplied.
The 2026 PPSA amendments and what it means for PMSIs
The PPSA is being modernised under the Personal Properties Securities Amendment Framework Reform Bill, following the Whittaker Review. Here’s what changed:
- Simplified definitions and concepts
The amendments streamline key PPSA concepts and reduce complexity in how different types of security are described. For you, that means fewer technical barriers when identifying whether you have a PMSI and how it should be registered. - Changes to registration requirements
The personal property securities register is being updated to improve clarity and reduce errors. This includes refinements to how financing statements are completed and how collateral classes are described, especially for serial-numbered assets like a motor vehicle. - Clearer priority rules
The reforms aim to make the PMSI priority easier to apply in practice. While super priority remains, the legislation clarifies how it interacts with other perfected security interests and reduces ambiguity in disputes. - Removal of unnecessary technical traps
Some older provisions that caused technical defects in registration are being removed or simplified. This reduces the risk of losing priority due to minor errors, but accuracy still matters. - Greater alignment with commercial practice
The PPSA is being aligned more closely with how secured transactions operate in real business. This includes clearer treatment of commercial consignment and leasing arrangements.
Getting your registration right under the new rules
To secure a PMSI, you need to register it properly on the PPSR. The process is straightforward:
- Enter into a valid security agreement that clearly identifies the collateral and repayment terms.
- Identify the correct grantor details and asset classification.
- Prepare a financing statement that reflects the correct type of security interest.
- Register the interest on the personal property securities register.
- Ensure the registration is completed within the required timeframe.
- Monitor the registration to maintain accuracy and currency.
An incorrect registration may still create a security interest, but it may not be perfected. Without perfected security interests, you lose priority protection and may fall behind other secured creditors.
The timing rules you cannot afford to miss
Timing is critical for a PMSI.
For inventory, you must register before you take possession of the inventory or before the grantor takes possession of the collateral.
For non-inventory assets, you must register within 15 business days of the grantor taking possession of the collateral.
If you miss these deadlines, your PMSI still exists. However, it will not qualify for super priority. That means you revert to the standard first-in-time rule and may lose your position against earlier secured parties.
How to get your business ready for the new PPSA rules
The reforms are practical, not scary. Here are some practical steps you can take to strengthen your position:
- Review your supplier and credit agreements: Make sure each one creates a security interest you can rely on.
- Audit your existing PPSR registrations: Confirm they're current, correctly classified, and tied to live customers.
- Update your internal processes for timing and accuracy: Build registration into your sales and credit workflow, not after the fact.
- Get advice early on bigger or unusual transactions: Specialist law firms and legal services can help with security agreement drafting and complex secured transactions.
Stay in control as the rules evolve
PMSIs are still one of the strongest tools you have to protect what your business is owed. The PPSA changes don't take that away. If anything, the reforms make the system easier to use, provided you keep your registrations clean and your timing tight.
The rules can feel complex, but the core idea is simple. Get the security agreement right. Get the registration right. Hit the deadlines. Do those three things, and you put your business in a stronger position than most of your competitors.
If you're a director, supplier, or lender unsure about how the new rules apply to your situation, our team is here to help. We work with small businesses across Australia to protect their position before insolvency hits and to recover what they're owed when it does.
Speak to our team today for a free, confidential conversation about where your business stands.
FAQs
What happens to your PMSI if a customer becomes insolvent?
A PMSI continues to operate in insolvency, provided it is properly registered and perfected. If you hold a perfected PMSI, you may be able to repossess goods, claim proceeds from their sale, or rank ahead of other secured creditors for that collateral.
Is a retention of title clause the same as a PMSI?
No. A retention of title clause can create a PMSI, but only if it is supported by a valid security agreement and registered on the PPSR.
Does a PMSI cover the proceeds when the goods are sold?
Yes. A PMSI can extend to proceeds, which means you may have rights to sale proceeds if the original collateral is disposed of.
Can you have a PMSI without registering it?
Yes, but it will not be perfected. Without a perfected PMSI, you will not receive super priority and may rank behind other secured creditors.
Does a PMSI apply to services or only goods?
A PMSI generally applies to goods and certain types of personal property. It does not usually apply to pure services.
What happens if two PMSIs exist over the same goods?
Specific rules apply. Generally, a seller's PMSI for unpaid purchase price takes priority over a lender's PMSI for the same goods. Get advice if you're in this situation, as the order matters.
Get in touch
Speak to one of our experts now for a free consultation. Enter your details below or call 1300 750 599.