A purchase money security interest secures seller credit or financing used to acquire specified goods, with special priority when statutory conditions are met.
A purchase money security interest (PMSI) is a security interest that secures an obligation incurred as part of the price of specified collateral or financing that enabled the debtor to acquire rights in that collateral, to the extent the value was actually used for that purpose. A qualifying and properly perfected PMSI can receive special priority over an earlier security interest in the same goods.
PMSI priority is conditional, not automatic in every transaction. Consumer goods, equipment, inventory, livestock, software, fixtures, and titled property can follow different rules.
| Structure | Purchase-money obligation | Example |
|---|---|---|
| Seller financing | Unpaid part of the collateral’s price | Equipment vendor allows installments and retains security |
| Enabling loan | New value used to acquire rights in collateral | Bank funds purchase of a specific machine and takes security in it |
Tracing matters. If a lender advances unrestricted working capital and the borrower happens to buy equipment, the lender should not assume the entire obligation has PMSI status.
A company already has a revolving lender with a perfected blanket interest in equipment. On June 1, an equipment financier advances $120,000 that the company uses to acquire a new printing press, and the company receives possession that day. The financier has an authenticated security agreement covering the press and files an effective financing statement on June 15.
| Event | Date | PMSI relevance |
|---|---|---|
| Financier enables press acquisition | June 1 | Establishes purchase-money purpose if funds are used as required |
| Debtor receives press | June 1 | Starts the model 20-day timing period for non-inventory goods |
| Effective financing statement filed | June 15 | Within 20 days of possession |
Assuming all other requirements are satisfied and no special rule changes the result, UCC Section 9-324(a) can give the perfected PMSI priority in the press over a conflicting earlier blanket interest. The priority concerns the specific purchase-money collateral and qualifying proceeds, not every asset of the company.
| Requirement | Goods other than inventory or livestock | Inventory |
|---|---|---|
| Perfection timing | When debtor receives possession or within 20 days | When debtor receives possession |
| Prior-lender notice | Generally not part of Section 9-324(a) rule | Authenticated notice to specified earlier filers generally required |
| Notice timing | Not applicable under general equipment rule | Prior holder must receive notice before debtor receives inventory, within statutory framework |
| Practical use | Machinery, vehicles, business equipment | Goods held for sale or lease |
Classification depends on how the debtor uses the goods. A printer can be equipment for a print shop but inventory for a dealer selling printers.
UCC Section 9-309 generally provides automatic perfection for a PMSI in consumer goods upon attachment. Important exceptions and overlays include property subject to certificate-of-title statutes, fixture rules, federal law, and consumer-specific provisions.
A financed automobile should not be treated like an automatically perfected household appliance without checking the title statute. Consumer-goods rules can also vary by state and transaction.
PMSI status applies only to the qualifying extent. In non-consumer-goods transactions, Section 9-103 addresses payment allocation, cross-collateralization, refinancing, consolidation, and the burden of proving purchase-money status.
The creditor should maintain evidence showing:
| Feature | PMSI | Ordinary security interest |
|---|---|---|
| Credit purpose | Acquires specified collateral | Can secure general or existing obligations |
| Priority | Can receive special priority if conditions are met | Usually follows general priority rules |
| Timing sensitivity | Often strict and collateral-specific | Filing can occur before or after attachment, with priority consequences |
| Scope | Purchase-money collateral and qualifying related rights | Collateral within the grant and applicable law |
An interest can be a valid, perfected security interest yet fail to receive PMSI priority because a timing or notice condition was missed.
A missed deadline, ineffective filing, absent notice, wrong classification, or weak tracing record can eliminate special priority. Even a priority PMSI can be undersecured if goods depreciate or disposition costs are high. Buyers, accessions, fixtures, proceeds, and insolvency rules can complicate recovery.
State Article 9 enactments and non-UCC law vary. This page is educational and is not legal, bankruptcy, consumer-credit, lending, or personalized financial advice.