A lender perfects a security interest in accounts receivable by filing a UCC-1 financing statement in the state where the debtor is located, after making sure the interest has attached under a signed security agreement. That single filing, done correctly, is what stands between the lender and the loss of its collateral to a competing creditor or a bankruptcy trustee. Everything else in Article 9 either supports that filing or explains how it can be undone.
The steps below assume the typical case: a business borrower, a lender or factor taking accounts as collateral, and a filing under Revised Article 9 of the UCC.
Attach the Interest First
Perfection is meaningless if the security interest hasn’t attached, because attachment is what makes the interest enforceable against the debtor in the first place. Three things must all be true at the same time:1Legal Information Institute. UCC 9-203 – Attachment and Enforceability of Security Interest
- The lender has given value, typically a cash advance or an established credit line.
- The debtor has rights in the accounts, meaning it actually owns them or has authority to transfer them.
- The debtor has authenticated a security agreement that describes the collateral.
Authentication doesn’t require ink. An electronic signature or a click-through acceptance works, as long as it shows the debtor intended to adopt the record. The collateral description in the security agreement should say what it covers — “all accounts” is enough for accounts receivable — and should state whether it reaches accounts the debtor generates in the future. After-acquired property clauses are permitted, and for a revolving receivables facility they are essential.
One boundary worth flagging: Article 9 applies to outright sales of accounts as well as to accounts pledged as collateral.2Cornell Law School. UCC 9-109 – Scope A factor who buys invoices outright still has to file. Assuming a true sale sits outside the UCC is a common and costly mistake.
What Goes on the Financing Statement
A UCC-1 needs three pieces of information to be effective: the debtor’s name, the secured party’s name, and a description of the collateral.3Legal Information Institute. UCC 9-502 – Contents of Financing Statement Two of those are easy. The debtor’s name is where filings go wrong.
Debtor Name
For a corporation, LLC, or limited partnership, the financing statement must use the exact legal name shown on the entity’s organizational documents filed with the state. Not the trade name. Not the DBA. If the articles of incorporation say “Greenfield Industries, Inc.,” a filing under “Greenfield” or “Greenfield Industries” can be worthless.
Revised Article 9 does provide a safe harbor: a name error is not fatal if a search under the debtor’s correct name, using the filing office’s standard search logic, would still turn up the financing statement.4Legal Information Institute. UCC 9-506 – Effect of Errors or Omissions Search algorithms differ from state to state, so relying on the safe harbor is a bet. Verify the name against the state’s records and file exactly what appears there.
Collateral Description
The description on the financing statement can be broader than the one in the security agreement. “All accounts” or “all accounts receivable” is acceptable and gives comprehensive coverage. Many lenders use “all assets” on the UCC-1 to sweep in future collateral categories, though the security agreement itself must still describe specific types of property.
Where to File
The correct filing office is determined by where the debtor is located, not where the accounts were generated or where the account debtors sit.5Legal Information Institute. UCC 9-307 – Location of Debtor
A registered business entity is located in its state of organization. A Delaware LLC with offices in Texas and customers across the country needs a Delaware filing. Filing in Texas because that’s where the receivables are billed does nothing. For entities organized under federal law, the location is the state designated by the applicable federal statute, or the District of Columbia if none is designated.
Within the correct state, receivables filings go to the central office, typically the Secretary of State, not to a county recorder.6Legal Information Institute. UCC 9-501 – Filing Office County filing is reserved for collateral tied to real property, such as fixtures.
File, Get the Timestamp, Track the Five-Year Clock
Most Secretary of State offices accept online submissions that produce an instant timestamp and cost less than paper filings. Fees generally range from around $10 to over $100 depending on the state and method. Paper filing is still available and slower.
The moment the filing office accepts the financing statement, the interest is perfected. That timestamp fixes the lender’s place in the priority line. Get a date-stamped acknowledgment and keep it — it’s the evidence that decides disputes later. Many lenders file the UCC-1 before advancing funds, because priority dates from the earlier of filing or perfection, and an early file locks in an early date.
A financing statement lasts five years. To keep perfection in place beyond that, the lender must file a continuation statement in the six-month window before the expiration date.7Legal Information Institute. UCC 9-515 – Duration and Effectiveness of Financing Statement File too early and it doesn’t count. Miss the window entirely and the filing lapses as if it never existed. Docket the date the day the UCC-1 is filed.
Events That Can Undo Perfection
Filing correctly on day one is not the end of the job. Two events after filing can quietly break perfection.
Debtor Name Change
If the debtor changes its legal name and the original filing becomes seriously misleading under the filing office’s search logic, the lender has four months to file an amendment.8Legal Information Institute. UCC 9-507 – Effect of Certain Events on Effectiveness of Financing Statement During those four months, the original filing still covers collateral the debtor acquires. Collateral acquired after the four-month window is not covered unless the amendment has been filed. For a revolving line secured by future receivables, every invoice generated after month four would be uncovered.
Debtor Relocation
When the debtor moves to a different jurisdiction — a company reincorporates in another state, for example — the existing perfection lasts four months.9Legal Information Institute. UCC 9-316 – Effect of Change in Governing Law Filing a new financing statement in the new state within that window continues perfection without interruption. Miss it and the interest is treated as unperfected against anyone who bought the collateral for value, retroactive to the move. The retroactive part is the worst of it. Priority disappears backward, not just forward.
Priority Among Competing Creditors
Once perfected, the interest still has to survive a fight with other claimants. Among competing perfected interests in the same collateral, the first to file or perfect wins.10Legal Information Institute. UCC 9-322 – Priorities Among Conflicting Security Interests Priority runs from the earlier of the filing date or the perfection date, which is why filing before closing is a common practice.
An unperfected interest loses to everyone with a real claim: perfected secured creditors, judicial lien creditors, and bankruptcy trustees.
The PMSI Question
A supplier who finances inventory can hold a purchase money security interest that outranks an earlier blanket lien on that inventory. Its reach into receivables is limited, though. A purchase money interest in inventory extends to identifiable cash proceeds only if those proceeds are received before or when the inventory is delivered.11Legal Information Institute. UCC 9-324 – Priority of Purchase-Money Security Interests Receivables generated from later payments on inventory sales generally fall outside PMSI protection. A receivables lender with a properly perfected interest typically keeps priority in those receivables against an inventory supplier’s PMSI.
Federal Tax Liens
A federal tax lien is one of the few claims that can jump ahead of a perfected security interest, and the rules come from the Internal Revenue Code, not the UCC. Under IRC 6323, a federal tax lien is not valid against the holder of a security interest until the IRS files a Notice of Federal Tax Lien.12Office of the Law Revision Counsel. 26 USC 6323 – Validity and Priority Against Certain Persons To qualify, the security interest must be perfected under local law and the lender must have parted with money or money’s worth.
Even after the IRS files, a lender can keep priority for advances made under a pre-existing written agreement, but only for 45 days after the notice is filed, or until the lender learns of the notice, whichever comes first.13eCFR. 26 CFR 301.6323(d)-1 – 45-Day Period for Making Disbursements After that, new advances fall behind the tax lien. Any lender running a revolving facility on receivables needs a system to monitor tax lien filings against its borrowers, or it can keep funding while quietly sliding behind the IRS.
Account Debtors and Anti-Assignment Clauses
The customers who owe on the assigned invoices — account debtors in UCC terms — don’t automatically know about the assignment. Until they receive proper notice, payments to the original company discharge their obligation in full.14Legal Information Institute. UCC 9-406 – Discharge of Account Debtor Once an account debtor receives an authenticated notice identifying the assignment and giving payment instructions, it has to pay the assignee. Paying the assignor after receiving proper notice does not count, and the account debtor may end up paying twice.
In many arrangements the assignor keeps collecting as usual and remits to the lender, with notification held back unless the assignor defaults. After default, the secured party can collect directly and deduct reasonable expenses, including attorney’s fees, from what it collects.15Legal Information Institute. UCC 9-607 – Collection and Enforcement by Secured Party
Contract clauses that prohibit assignment without consent are largely a paper tiger where receivables are concerned. The UCC overrides contract terms that restrict the assignment of accounts or the creation of a security interest in them.14Legal Information Institute. UCC 9-406 – Discharge of Account Debtor A clause treating assignment as a default is equally ineffective. Restrictions imposed by parties other than the account debtor — such as by co-owners — may still be enforceable, but the typical anti-assignment clause in a customer contract will not stop a receivables financing.
Bankruptcy: What the Filing Buys, What It Doesn’t
Bankruptcy is where perfection either pays off or fails. A trustee has strong-arm powers to step into the position of a hypothetical lien creditor as of the filing date.16Office of the Law Revision Counsel. 11 USC 544 – Trustee as Lien Creditor and as Successor to Certain Creditors and Purchasers An interest that is unperfected on that date can be avoided, and the receivables become part of the estate. The trustee’s power does not depend on whether the trustee knew about the interest.
One dangerous assumption: that the automatic stay pauses the five-year clock. It does not. The 2001 UCC amendments removed the earlier tolling provision. A UCC-1 filed five years ago will lapse on schedule whether or not the debtor is in bankruptcy. The Bankruptcy Code specifically permits acts to maintain or continue perfection, so a continuation statement can and must be filed during a bankruptcy without violating the stay.17Office of the Law Revision Counsel. 11 USC 362 – Automatic Stay Waiting for the bankruptcy to sort itself out before touching the UCC file is how secured lenders become unsecured lenders.
Adding Control Over the Deposit Account
A UCC-1 is the standard method for perfecting an interest in accounts receivable, but proceeds of those receivables usually land in a bank account, and a security interest in a deposit account can only be perfected by control, not by filing. Control exists in one of three situations: the secured party is the bank where the account is held, the debtor and the bank sign a control agreement giving the secured party authority to direct the funds, or the secured party becomes the bank’s customer on the account.18Legal Information Institute. UCC 9-104 – Control of Deposit Account The debtor can keep using the account day-to-day; control does not require freezing the funds.
A lender who has both a filed UCC-1 on the receivables and a control agreement over the deposit account where those receivables are collected holds a stronger position than one relying on the filing alone. Cash that has cleared into the bank account is proceeds, and control is the only way to lock it down.