This appeal involves a determination of the respective priority between a federal tax lien on a taxpayer's accounts receivable and a private individual's security interest in the same accounts receivable. The district court granted summary judgment in favor of the government finding that the federal tax lien was entitled to priority in all of the taxpayer's accounts receivable arising more than 45 days after the Internal Revenue Service first filed notice of its tax lien. We affirm.

On June 20, 1977, the Director of the Illinois Department of Public Aid certified the taxpayer, Eventide Homes, Inc., to participate in the Title XIX Medicaid Program as a skilled and intermediate nursing care facility.1 Eventide Homes' initial certification for participation in the Medicaid Program was effective from March 1977 through March 1978, and was later extended through 1980. Under the certification agreement between Eventide Homes and the Illinois Department of Public Aid, Eventide Homes was under no obligation to provide medical and health care services to public aid recipients of the State of Illinois, but if they decided to provide such care, the Department agreed to reimburse Eventide Homes.

On May 10, 1979, Eventide Homes gave a $75,000 promissory note for value to Mervin Beil and executed a security agreement granting Beil a security interest in the taxpayer's "accounts receivable, and all goods, equipment, fixtures or inventory now or hereafter existing" to secure payment of the promissory note. Beil perfected his security interest pursuant to Ill.Rev.Stat. ch. 26, § 9-401(1)(c) by filing a financing statement with the Illinois Secretary of State's office on May 17, 1979. Beil later sold his security interest in Eventide Homes' accounts to the plaintiff J.D. Court. The assignment of that security interest was recorded with the Illinois Secretary of State on December 21, 1979.2

During 1979 and 1980, the taxpayer Eventide Homes provided medical and health care services to Illinois public aid recipients entitling Eventide Homes to receive approximately $33,000 from the Illinois Department of Public Aid. Of this amount, $907.38 was for services rendered to Illinois public aid recipients by Eventide Homes prior to December 1, 1979, with the remainder representing amounts due for the services rendered after December 1, 1979.3

Because of Eventide Homes' failure to pay its federal income taxes, the Internal Revenue Service assessed delinquent taxes against Eventide Homes and imposed a federal tax lien on Eventide Homes' property sometime prior to September 1979.4 On September 17, 1979, the Internal Revenue Service filed in the Kankakee County, Illinois Recorder's Office the first of four notices of tax liens against Eventide Homes' property, in the amount of $3,802.00. The three other notices of tax liens against Eventide Homes were filed in the Kankakee Recorder's Office on the following dates and for the following amounts: (1) October 10, 1979 for $11,084; (2) October 16, 1979 for $10,484; and (3) January 30, 1980 for $43,555.

On January 23, 1980, the Internal Revenue Service levied5 on the funds then due and owing to Eventide Homes from the Illinois Department of Public Aid for services rendered to public aid recipients. Approximately two weeks later, on February 15, 1980, Eventide Homes (the taxpayer) was placed in receivership. The plaintiff J.D. Court filed this action to enjoin the government from levying on the funds of the Illinois Department of Public Aid owed to Eventide Homes alleging that it is entitled to priority to all of the levied funds by virtue of its position as assignee of the security interest in Eventide Homes' "accounts receivable." The levied funds are presently being held in escrow pending resolution of this lawsuit.

In its summary judgment order, the trial court found that the plaintiff J.D. Court's security interest took priority in the taxpayer's accounts receivable which came into existence within forty-five days of the IRS's first filing of a notice of tax lien. The court further determined that the government had priority in the accounts receivable that came into existence after the forty-five days had expired from the filing of the first tax lien pursuant to 26 U.S.C. § 6323(c). The plaintiff J.D. Court appeals from the decision of the district court.

Since one of the parties in this case is the United States holding a lien for unpaid taxes, federal law governs the priority of the conflicting liens on Eventide Homes' accounts receivable. United States v. Pioneer American Insurance Co., 374 U.S. 84, 83 S. Ct. 1651, 10 L. Ed. 2d 770 (1963). Specifically, the Federal Tax Lien Act of 1966, 26 U.S.C. §§ 6321-6326 sets forth the rights of private creditors with respect to a federal tax lien.

The Tax Lien Act follows the general rule that a "lien first in time is first in right." In general, a federal tax lien arises (i.e., "attaches")6 "at the time the [tax] assessment is made," 26 U.S.C. § 6322, and therefore a tax lien normally takes priority over other liens arising subsequent to assessment of the delinquent tax.7 Section 6323(a)8 of the Act creates an exception to § 6322's rule that a federal tax lien generally attaches at the time the delinquent tax is assessed; under § 6323(a), when the "holder of a security interest" also claims an interest in property subject to a federal tax lien, the federal tax lien is deemed to have attached when the IRS files a notice of tax lien, rather than when the delinquent tax was first assessed. Thus, the holder of a security interest in a taxpayer's property will prevail against a government tax lien on the same property if the security interest "attaches" and is perfected before the government files its notice of tax lien, see Coogan, The Effect of the Federal Tax Lien Act of 1966 Upon Security Interests Created Under the Uniform Commercial Code, 81 Harv.L.Rev. 1369 (1968).

Therefore, to determine the priority between a federal tax lien and a security interest in the same property, it is necessary to determine (1) when the federal tax lien "attaches"; and (2) when the state law security interest "attaches." As we have noted above, § 6323(a) provides that a federal tax lien "attaches" in these circumstances when the notice of tax lien is filed in the appropriate place. However, the Act fails to expressly state when the competing state law security interest is deemed to have "attached." In answering this question, courts have long relied on the judicially created "choateness doctrine." Under the "choateness doctrine," where a security interest arising under state law (such as the plaintiff's) comes into conflict with a federal tax lien, the state law security interest "attaches" only when it becomes "choate." A state law security interest is deemed to be "choate" when all three of the following elements are satisfied: "the identity of the lienor, the property subject to the lien, and the amount of the lien are established." Pioneer American Insurance Co., 374 U.S. at 89, 83 S.Ct. at 1655, quoting United States v. New Britain, 347 U.S. 81, 84, 74 S. Ct. 367, 369, 98 L. Ed. 520; W. Plumb, Federal Tax Liens 149-50 (3d Ed.1972 and Supp.1974). If this three-part "choateness" test is satisfied at the time the IRS files its notice of tax lien, or within 45 days thereafter, the state law security interest takes priority over the competing tax lien. 26 U.S.C. § 6323(c).9

In the instant case, the district court applied the foregoing rules, including the "choateness doctrine," to determine the respective rights of the plaintiff and the United States in Eventide Homes' accounts receivable. The court found that the plaintiff's security interest in the Eventide Homes' accounts receivable did not satisfy the three-part "choateness" test until the property subject to the security interest (i.e., the accounts receivable) actually came into existence--namely, at the moment in time when the Illinois Department of Public Aid became indebted to Eventide Homes for the provision of health and medical services to Illinois public aid recipients. Applying this reasoning, the district court determined that the plaintiff's security interest was "choate" only with regard to the $907.38 of accounts receivable coming into existence within 45 days of the government's filing its first notice of tax lien and thus was only entitled to priority over the competing tax lien to that extent. The court further found that the IRS's tax liens were entitled to priority with regard to any accounts receivable coming into existence thereafter, totalling $31,965.34, since the plaintiff's security interest in those accounts receivable did not become "choate" until more than 45 days after the government filed notice of its tax liens.

In this appeal, the plaintiff first challenges the district court's reliance on the "choateness doctrine." The plaintiff states that the "choateness doctrine" was developed by the federal courts prior to enactment of the Tax Lien Act of 1966 and that the "choateness doctrine" is solely a tax lien concept not embodied in the Uniform Commercial Code. Since the Tax Lien Act was intended to "conform the lien provisions of the internal revenue laws to concepts developed in [the] Uniform Commercial Code," H.R.Rep. No. 1884, 89th Cong., 2d Sess., 35 (1966), the plaintiff concludes that the "choateness doctrine" was abrogated by the Tax Lien Act of 1966.

We disagree with the plaintiff's contention that the Tax Lien Act of 1966 abrogated the "choateness doctrine" since this court, as recently as 1979, recognized the continued viability of the "choateness doctrine" under the Tax Lien Act of 1966. In Sgro v. United States, 609 F.2d 1259 (7th Cir.1979) this court held that a government tax lien took priority over a state law security interest in a taxpayer's accounts receivable, and discussed the "choateness doctrine" as follows:

"Notwithstanding the attachment of a tax lien upon assessment, [§ 6323(a)] provides that ... holders of security interests, ... will prevail if their interest attaches before the Government files appropriate notice. Attachment occurs at the moment the interest becomes choate, which is a question of federal law.... If 'the identity of the lienor, the property subject to the lien, and the amount of the lien are established' before the Government files notice, those falling within the statutory class will prevail over a prior tax lien."

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"[A] common way to secure a line of credit is to use one's accounts receivable as collateral. Such a loan may be secured by the outstanding balances in the debtor's accounts receivable at the time the loan is made and by further balances as they become due.... Since a subsequently arising balance is not in existence at the time the loan is made, the resulting lien remains inchoate until the underlying debt becomes due.... [T]he resulting lien remains unprotected by [§ 6323(a)] until it becomes choate and therefore would be subject to a tax lien filed in the interim."

Id. at 1261 (emphasis added) (citations omitted). Similarly, in an earlier case, this court stated:

"[B]efore determining that a state lien has priority over a federal tax lien under the first in time, first in right rule of § 6323, two questions must be answered in the affirmative: whether a valid lien existed under state law when the federal lien was recorded; and, if so, whether that lien is 'choate' under federal law."

Asher v. United States, 570 F.2d 682, 683 (7th Cir.1978) (emphasis added). The Sgro and Asher cases clearly establish that, in determining priority between state law liens and federal tax liens under the Tax Lien Act of 1966, the "choateness doctrine" is recognized in this circuit as a valid legal principle, not abrogated by the Tax Lien Act.10

Our conclusion that the "choateness doctrine" has continued validity under the Tax Lien Act is buttressed by the Supreme Court's opinion in United States v. Kimbell Foods, Inc., 440 U.S. 715, 99 S. Ct. 1448, 59 L. Ed. 2d 711 (1979). In Kimbell Foods, the Court held that the "choateness doctrine" did not apply in determining priority between the government's contractual liens arising from federal loan programs and private liens. Although the holding of Kimbell Foods does not directly affect our resolution of this case, the Court emphasized the critical distinction between a contractual lien arising from a government loan program and a government tax lien:

"That collection of taxes is vital to the functioning, indeed existence, of government cannot be denied.... Congress recognized as much over 100 years ago when it authorized creation of federal tax liens.... The importance of securing adequate revenues to discharge national obligations justifies the extraordinary priority accorded federal tax liens through the choateness and first-in-time doctrines."

Id. at 734, 99 S.Ct. at 1461 (emphasis added) (citations omitted).

We conclude that the "choateness doctrine" is a valid legal principle in determining the priority between the government's tax lien in Eventide Homes' accounts receivable and the plaintiff's security interest in the same accounts receivable. Having reached this conclusion, we consider only briefly the plaintiff's additional arguments. The plaintiff argues that its security interest in Eventide Homes' accounts receivable was in fact "choate" prior to September 17, 1979 when the government filed its first notice of tax lien. However, as we indicated in Sgro, a security interest in accounts receivable does not become "choate" until the accounts receivable actually come into existence, that is, at the time the services giving rise to the accounts receivable are performed. 609 F.2d at 1261. Thus, the district court correctly determined that the plaintiff had priority only to those accounts receivable arising prior to the government's filing of its notice of tax lien, or within 45 days thereafter. Section 6323(c)(2).11

In conclusion, we hold that the district court correctly applied the "choateness doctrine" in determining the respective rights of the parties under the Tax Lien Act of 1966. The judgment of the district court is AFFIRMED.