Appellants, Coventry Sewage Associates (“Coventry”) and Woodland Manor Improvement Association (“Woodland”) brought a diversity action against appellees, Dworkin Realty Co. (“Dworkin”) and The Stop & Shop Supermarket Company (“Stop & Shop”). The United States District Court for the District of Rhode Island found that the amount-in-controversy requirement of 28 U.S.C. § 1332(a) was not met and dismissed the case, pursuant to appellees’ motion under Fed.R.Civ.P. 12(b)(1), for lack of subject matter jurisdiction. For the reasons stated below, and because of the unusual facts of this case, we reverse.
I.
FACTUAL BACKGROUND AND PRIOR PROCEEDINGS
Coventry and Woodland own and operate a private sewer line and sewage pumping station servicing, among others, a supermarket run by Stop & Shop, located on property owned by Dworkin, a wholly-owned subsidiary of Stop & Shop (hereinafter appellees will be referred to collectively as “Stop & *3 Shop”). 1 In June 1992, Coventry and Woodland (hereinafter, collectively “Coventry”) entered into a “Sewer Connection Agreement” with Stop & Shop, whereby Stop & Shop agreed to pay a service fee for sewer-main usage. The service fee was based, in part, upon the number of cubic feet of water consumed on the property. To determine the amount of water consumed, the parties’ contract relied on invoices from the Kent County Water Authority (“KCWA”). The KCWA sent these invoices to Stop & Shop, and Stop & Shop in turn forwarded them to Coventry.
Because of a dispute over the reasonableness of an increase in the service fee — an increase Coventry claimed was permitted by the contract — Stop & Shop refused to pay Coventry’s bills which accumulated beginning in early 1994. In October 1994, Coventry filed this action seeking recovery of $74,-953.00, the amount it claimed to be due based upon water-usage numbers obtained from the KCWA invoices and what Coventry claimed was the correct new service fee rate. Coventry also sought contractual attorneys’ fees. It is undisputed that, at the time Coventry commenced the action, it alleged the amount in controversy in the belief that it exceeded the jurisdictional minimum, and not as a ruse to invoke federal jurisdiction.
Shortly after the complaint was filed, but before Stop & Shop filed its answer, Stop & Shop contacted the KCWA about the invoices underlying Coventry’s fee calculations. The KCWA then sent an employee to the property who discovered that there had been a misreading of Stop & Shop’s water meters, essentially caused by the adding of an extra zero to the number of cubic meters actually consumed. By letter dated November 18, 1994, the KCWA notified Stop & Shop that it was correcting the billing error by changing the amounts of the invoices.
Based upon the KCWA’s corrected invoices, Coventry reduced the sum of its bills to Shop & Stop to only $18,667.88, an amount that included the disputed fee increase. Subsequently, Stop & Shop paid the undisputed portion of the fee, $10,182.48, initially withholding the disputed balance of $8,485.40. Stop & Shop ultimately paid this remaining sum as well, reserving the right to recoup the amount should it prevail in its challenge to the reasonableness of the service fee. Stop & Shop, presumably doubting the existence of diversity jurisdiction, asked Coventry to voluntarily dismiss the federal action; Coventry refused, however, apparently because of its intention to pursue in federal court its claim for contractual attorneys’ fees. 2
Stop & Shop moved to dismiss the action under Fed.R.Civ.P. 12(b)(1) for lack of subject matter jurisdiction. 3 The district court granted the motion, finding that, “to a legal certainty,” the amount in controversy did not exceed $50,000 as required by 28 U.S.C. § 1332(a). Notwithstanding the small amount actually in controversy, Coventry appeals the dismissal of the action. At oral argument before this court, counsel for Coventry stated that the reason for the insistence upon federal jurisdiction was that the ease would get to an earlier trial in federal court (including the appeal proceedings) than if the case were pursued in state court.
II.
DISCUSSION
A Standard of Review
We review
de novo
the district court’s dismissal for lack of subject matter jurisdiction under Fed.R.Civ.P. 12(b)(1).
Murphy v. United States,
B. Analysis
Coventry argues that at the time it filed the action, it claimed, in good faith, damages in excess of $50,000; thus, the subsequent reduction of the amount in controversy did not divest the district court of jurisdiction. Coventry contends that the KCWA’s post-filing discovery of the billing error and changing of the invoice amounts was a “subsequent event” that neither undermined its good faith in filing, nor disturbed the court’s jurisdiction once it attached. Shop & Stop argues that the billing error was a mere “subsequent revelation” that proved, to a legal certainty, that the amount in controversy had always been below the jurisdictional minimum and thus the court properly dismissed the ease for lack of subject matter jurisdiction.
This case illustrates the competing policies that operate when a court makes an amount-in-controversy determination. On the one hand, a federal court should rigorously enforce the jurisdictional limits that Congress chooses to set in diversity eases.
See Pratt Central Park Ltd. v. Dames & Moore, Inc.,
For the purpose of establishing diversity jurisdiction, the amount in controversy is determined by looking to the circumstances at the time the complaint is filed.
Thesleff v. Harvard Trust Co.,
[The plaintiffs] good faith in choosing the federal forum is open to challenge not only by resort to the face of the complaint, but by the facts disclosed at trial, and if from either source it is clear that his claim never could have amounted to the sum necessary to give jurisdiction, there is no injustice in dismissing the suit.
Id.
Coventry and Stop & Shop both cite passages from the seminal case of
St. Paul,
The Supreme Court reversed, noting that there was no evidence that, at the time the action was commenced, the plaintiff could have ascertained the actual sum of the damages, and that the later exhibit setting forth this sum did not undermine plaintiffs initial good faith.
In a portion of St. Paul crucial to the instant case, and from which the parties before us parse their favorite phrases, the Court wrote:
The intent of Congress drastically to restrict federal jurisdiction in controversies between citizens of different states has always been rigorously enforced by the courts. The rule governing dismissal for want of jurisdiction in cases brought in the federal court is that, unless the law gives a different rule, the sum claimed by the plaintiff controls if the claim is apparently made in good faith. It must appear to a legal certainty that the claim is really for less than the jurisdictional amount to justify dismissal. The inability of plaintiff to recover an amount adequate to give the court jurisdiction does not show his bad faith or oust the jurisdiction. Nor does the fact that the complaint discloses the existence of a valid defense to the claim. But if, from the face of the pleadings, it is apparent, to a legal certainty, that the plaintiff cannot recover the amount claimed or if, from the proofs, the court is satisfied to a like certainty that the plaintiff never was entitled to recover that amount, and that his claim was therefore colorable for the purpose of conferring jurisdiction, the suit will be dismissed. Events occurring subsequent to the institution of suit which reduce the amount recoverable below the statutory limit do not oust jurisdiction.
Id.
at 288-89,
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The rules gleaned from the foregoing passage may be summarized as follows. First, federal courts must diligently enforce the rules establishing and limiting diversity jurisdiction. Second, unless the law provides otherwise, the plaintiffs damages claim will control the amount in controversy for jurisdictional purposes if it is made “in good faith.” If the face of the complaint reveals, to a legal certainty, that the controversy cannot involve the requisite amount, jurisdiction will not attach.
Id.
at 289, 291,
A careful review of
St. Paul
evinces its primary concern for the plaintiffs “good faith” in alleging the amount in controversy. When discerning a plaintiffs good faith, a court may look to whether it “appear[s] to a legal certainty that the claim is really for less than the jurisdictional amount.”
St. Paul,
The parties in the instant ease spill much ink over the meaning of “good faith”: whether it includes an objective as well as subjective component, and if so, whether “objective” good faith includes “objective facts” as opposed to “actual facts,” etc. Stop & Shop argues that the “objective facts” were always the same: that it consumed much less water than originally shown on KCWA’s invoices, and that although the claimed amount in controversy was over $50,000 at the time of filing, the “actual” amount in controversy is, indisputably, less than the jurisdictional minimum. Coventry counters that not only did it file with subjective good faith, but, because a wholly independent third party’s actions were relied upon (indeed, it was Stop & Shop that forwarded KCWA’s invoices to Coventry), there is no reason that Coventry “should have known” about the “actual” amount in controversy and thus, it claimed the damages in “objective” good faith as well.
This court has found that “good faith” in the amount-in-controversy context includes an element of “objective” good faith. In
Jimenez Puig v. Avis Rent-A-Car Sys.,
This case fits well within the rule that once jurisdiction attaches, it is not ousted by a subsequent change of events.
See St. Paul,
In the instant case, Coventry filed the complaint because Stop & Shop refused to pay its bills totalling $74,953.00. The amount in controversy, at the time of filing, exceeded the statutory minimum regardless of the then-unknown “actual facts” of Stop & Shop’s water consumption. It was not until Coventry filed the action that Stop & Shop inquired about KCWA’s invoices and KCWA subsequently changed them to reflect accurately the amount of water usage. Presumably, had the billing error never been detected, the action would have proceeded on Coventry’s damages claim of $74,953.00. The fact that an independent third party’s error initially inflated the amount in controversy above the jurisdictional minimum does not lead to the inevitable result that the third party’s correction, subsequent to the filing of the complaint, affects the propriety of the jurisdiction once it attached.
Stop & Shop insists that, in this case, we should draw a distinction between “subsequent events” and “subsequent revelations.” Stop & Shop argues that the subsequent revelation that the actual amount of damages never met the jurisdictional minimum — as opposed to a subsequent event that reduces that amount — divests the court of jurisdiction, regardless of what the parties knew or should have known at the time of filing. At oral argument before this court, counsel for Stop & Shop acknowledged that the logical extension of this argument is that the court would have been without jurisdiction over the case even if KCWA’s error had not been discovered until trial.
To support this argument, Stop & Shop cites three cases that are factually distinguishable from the instant one, and that, in any event, are not controlling upon this court. First, in
American Mutual Liab. Ins. Co. v. Campbell Lumber Mfg. Corp.,
*8
Second, in
Jones v. Knox Exploration Corp.,
Third, in
Tongkook America, Inc. v. Shipton Sportswear Co.,
In the instant case, Coventry did not base its damages claim on a faulty estimation that required recalculation during discovery, as in
American Mutual;
rather, it alleged the amount in controversy based upon a third-party’s information that neither party had any reason to know was erroneous. Unlike the “mere revelation” in
Jones
that there was never the requisite amount in controversy, the reduction in the amount in controversy here occurred only after KCWA’s affirmative acts of checking the water meters and changing the invoice amounts. Finally, although portions of the
Tongkook
court’s reasoning are not entirely consistent with our decision here, we distinguish that ease narrowly on the facts; in
Tongkook,
the parties themselves made the error affecting the amount in controversy approximately one year prior to commencement of the suit.
*9 III.
CONCLUSION
For the foregoing reasons, we vacate the judgment of the district court, and remand for further proceedings consistent with this opinion. Each party shall bear its own costs.
Notes
. The existence of diversity of citizenship is undisputed.
. We note that although attorneys’ fees usually will not constitute a portion of the amount in controversy, there is an exception where, as here, the fees are contractual.
Department of Recreation v. World Boxing Ass'n,
.Although the KCWA notified Stop & Shop of the error in November 1994, Stop & Shop raised only a general, boilerplate amount-in-controversy defense in its December 1994 answer, and did not formally move to dismiss on the jurisdictional basis until February 1995.
. The Court also noted that the removal posture of the case additionally bolstered the finding of good faith in claiming damages.
St. Paul,
Despite the added weight the removal posture contributed to the good faith finding, the Court noted that dismissal of the case would not have been warranted had plaintiff originally brought the case in federal court.
Id.
at 290,
. We decline, at this time, to make any sort of legal distinction between "objective facts” and "actual facts” for purposes of determining amount in controversy.
. We note here a paradox. Under 28 U.S.C. § 1332(b), a plaintiff who files a claim in federal court based on diversity jurisdiction is subject to the court’s imposition of costs if the plaintiff "is finally adjudged to be entitled to recover less than the sum or value of $50,000.” 28 U.S.C. 1332(b). Assuming that Coventry will persist in pursuing the case in federal court, it seems odd that while it has technically met the requirements of § 1332(a), it may not avoid potential liability under § 1332(b)’s cost sanction.
Cf. Horton,
