Colonial Pipeline Company, a public utility doing business in Georgia, brought this action pursuant to 42 U.S.C. § 1983 (1988) challenging the recently amended Georgia ad valorem tax system. Ga.Code Ann. §§ 48-2-18; 48-5-1 to -545 (1982 & Supp. 1990). Colonial alleges that they and other similarly situated entities 1 have been denied equal protection and due process of law as a result of certain inequities resulting from this system. The gravamen of Colonial’s claim is that poor administration of the ad valorem tax system by the state and counties has lead to a pattern of proportionately higher assessments of the property of “centrally assessed” taxpayers relative to non-eentrally assessed taxpayers. In addition, Colonial contends that the review and appeal process specified in this tax scheme is so infected with cumbersome procedures and poor administration that it is impossible to obtain adequate review of its unequal tax assessment claim.
As relief, Colonial requested an injunction covering the following items:
1) prohibiting the state revenue commissioner from approving any county's tax digest from 1989 and onward until the digest is in complete compliance with Georgia constitutional and statutory requirements and the federal constitution;
2) ordering the abatement of accrued and accruing interest on the unpaid portion of Colonial’s proposed assessments from 1985 onward;
3) suspending the statute of limitations on the filing of refund claims in the counties and municipalities;
4) directing the state and county taxing authorities to hire adequate staffs;
5) directing the state and county taxing authorities to assess equally and uniformly all taxable property as mandated by the Georgia Constitution;
6) ordering the state Board of Equalization to hire hearing officers to expedite pending appeals before it;
7) ordering the state and county taxing authorities to compile statistically valid ratio studies for the tax years 1985 onward as to real and personal tangible property; and
8) appointment by the district court of a monitor to oversee compliance with any judgment in this case.
The district court dismissed the suit for lack of subject matter jurisdiction on the grounds that the Tax Injunction Act, 28 U.S.C. § 1341 (1988), barred Colonial’s claims. The court found that the requested relief would interfere with the administration of the state tax system and that the state already provided an adequate remedy within the meaning of section 1341. Because we find that Colonial has alleged sufficient facts to support its claim that the state ad valorem tax review and appeal remedy is inadequate, we REVERSE the judgment of the district court and REMAND for further proceedings to determine whether the state review system as it currently functions is in fact inadequate.
I. BACKGROUND
A. Centrally-Assessed Taxpayers Under Georgia’s Ad Valorem Tax System
All tangible property in Georgia must be returned for taxation at its fair market value and assessed at 40%, of that value. Ga.Code.Ann. §§ 48-5-6 to -7. The Georgia Constitution mandates equalization and uniformity of taxation on all real and personal property. Ga. Const, of 1983, art. VII, § 1, ¶ 3.
The administration of these basic rules, however, has created a substantial disparity between the assessments levied against “centrally assessed” taxpayers such as public utilities that must file with both the *1240 state and counties in which it owns property and all other taxpayers who file only with the counties. 2 See Ga.Code Ann. §§ 48-5-511, -519, -541. This disparity arises because the returns required to be filed by centrally assessed taxpayers give the state comprehensive, annually updated information on the fair market value of all property owned by such taxpayers. Colonial alleges that based on this information, the state Board of Equalization then routinely assesses centrally assessed taxpayers at the maximum legal rate of forty percent.
Other ad valorem taxpayers, however, are not required to file annual returns and the valuation and assessment of their properties is commonly carried forward from year to year without any increases by county tax officials because of the failure to hire sufficient staff to regularly review records, valuations, and assessments. See id. § 48-5-20. As a result, Colonial alleges that most counties have incomplete tax records that do not include large percentages of taxable property, and the records themselves have not been updated in ten to twenty years resulting in assessments of recorded property at far below market value. In Colonial’s view, this problem is exacerbated by the state revenue commissioner’s regular approval of these county records with full knowledge that they are incomplete and that listed properties are undervalued and underassessed. 3 As a result, centrally-assessed taxpayers are taxed on the basis of more complete and current valuations and assessments of their property relative to other ad valorem taxpayers which causes them to pay a proportionately greater amount of tax.
B. Review and Appeal Process
Colonial also claims that the review and appeal process incorporated in Georgia’s ad valorem tax system is plagued with similar problems that render it virtually useless for correcting unequal tax assessments. Before the 1988 amendments to Georgia’s ad valorem tax system, centrally-assessed taxpayers could appeal to the state Board of Equalization on issues of valuation and assessment. Id. § 48-2-18 (1982) (amended 1988). Colonial alleges, however, that only two part-time hearing officers are available to hear these appeals which has resulted in a backlog of more than 70 appeals filed by centrally assessed taxpayers for proposed assessments from tax years 1985 to 1988. Only one appeal has been heard and no decisions have ever been rendered by the Board. 4
The 1988 amendments introduced several significant changes to the treatment of centrally-assessed taxpayers by expanding the role of the counties in making assessment determinations and handling appeals. Under this new regime, the commissioner prepares and the state Board approves an initial assessment of the property of centrally-assessed taxpayers — referred to in the legislative history as the “proposed assessment” — which is then transmitted to the counties. 5 Id. § 48-2-18(c) (Supp.1990). After receipt of the “proposed assessment”, a county may, but is not required to, use these figures as the county’s own *1241 tax assessment. Whether the county accepts the state assessment as its own or issues a locally generated assessment, the county must issue within 30 days a “final assessment” to the taxpayer. Id. § 48-2-18(d).
The expanded role of the counties under this new regime was accompanied by the establishment of a two-part appeals process. First, the 1988 amendments eliminated a centrally-assessed taxpayer’s right to appeal directly to the state Board from a “proposed assessment”; rather, a taxpayer must now appeal to the Fulton County Superior Court within 30 days of the receipt of a “proposed assessment”. Id. § 48-2-18(c). Second, appeals from “final assessments” must be pursued at the county administrative level within 30 days from the date of notice of such assessments. 6 Id. §§ 48-2-18(d), -5-311(e).
Colonial alleges that this new appeals procedure is excessively burdensome because it creates circumstances where a centrally-assessed taxpayer must pursue simultaneous appeals in the Fulton County Superior Court for the “proposed assessment” and appeals in each county in which it owns property. Thus, Colonial contends that in any given year it could be required to litigate in each of the 37 counties in which it owns property and also pursue an appeal in the Fulton County Superior Court against the state Board’s “proposed assessment”. 7
In a recent interpretation of this new statutory scheme, the Georgia Supreme Court attempted to reconcile these two branches of appeals by eliminating some of their duplicitous elements.
See Telecom * USA, Inc. v. Collins,
In the latter case, the Georgia Supreme Court reasoned that a county’s modification of a “proposed assessment” must be based on more current or credible information than that used by the state Board and therefore an appeal from this decision would involve different issues than those presented at an appeal at the state level.
Id.,
II. DISCUSSION
In this case we are faced with the issue of whether the Tax Injunction Act bars a federal court from hearing a taxpayer’s claims that state and county taxing authorities should provide timely and efficient relief for its challenges to tax assessments against it.
A. Applicability of Tax Injunction Act
The Tax Injunction Act provides that “[t]he district courts shall not enjoin, suspend or restrain the assessment, levy or
*1242
collection of any tax under State law where a plain, speedy and efficient remedy may be had in the courts of such State.” 28 U.S.C. § 1341. The limitation imposed by the act is
jurisdictional;
it embodies the general principle that the jurisdiction of the federal courts to “interfere with so important a local concern as the collection of taxes” must be drastically limited.
Rose-well v. LaSalle Nat'l Bank,
Colonial, however, seeks to dodge the Act’s jurisdictional bar on the grounds that it “seek[s] no present interference with the assessment, levy or collection of taxes” or violation of “the integrity of the state treasury.” Rather, it contends that the net effect of its requested items of relief-viewed separately or as a whole — would be to “enhance” and “promote” the assessment and collection of taxes through improved administration, expedited appeals, and federal judicial implementation of federal and state constitutional norms. Because such relief would enlarge tax revenues by increasing the valuation and assessment of currently undervalued properties, Colonial asserts that the Tax Injunction Act’s jurisdictional bar is not applicable.
See, e.g., Appling County v. Municipal Elec. Auth.,
In making these overly literal and technical attempts to distinguish its claim from the scope of section 1341, Colonial ignores the basic fact that its requested relief, if granted, would require a massive federal judicial intervention into virtually all phases of Georgia’s ad valorem tax system. Such an intrusion would clearly conflict with the principle underlying the Tax Injunction Act that the federal courts should generally avoid interfering with the sensitive and peculiarly local concerns surrounding state taxation schemes.
See Rosewell,
In assessing whether a complainant’s claim runs afoul of the Tax Injunction Act, we must look not only at whether the literal terms of the statute are implicated, but also at whether the requested relief requires such an exercise of federal judicial power as to collide with the broad purposes of the Act. In holding that a federal court was barred from granting declarative relief by section 1341, for example, the Supreme Court noted that that “ ‘procedure may in every practical sense operate to suspend collection of the state taxes until the litigation has ended.’ ”
Id.
at 408,
Although it did not specifically base its decision on this ground, we also note that general principles of comity may require the district court to abstain from granting Colonial’s requested relief.
See Fair Assessment in Real Estate Ass’n v. McNary,
B. Adequacy of State Remedies
In assessing the propriety of a motion for dismissal under Fed.R.Civ.P. 12(b)(1), a district court is not limited to an inquiry into undisputed facts; it may hear conflicting evidence and decide for itself the factual issues that determine jurisdiction.
See Gould, Inc. v. Pechiney Ugine Kuhlmann,
In this case, the district court did not allow a full factual inquiry into the truthfulness of Colonial’s allegations concerning the adequacy of state remedies for its constitutional claims. Although Georgia’s ad valorem tax system is no stranger to the federal courts,
9
we conclude that the 1988 amendments have so significantly altered the assessment and appeals processes for centrally-assessed taxpayers that their adequacy within the meaning of section 1341 remains an open question.
See Telecom*USA, Inc.,
In essence, Colonial has made two general allegations that Georgia’s ad valorem tax review and appeals process is not an adequate remedy within the meaning of section 1341. First, Colonial argues that the basic elements of a functional tax system are missing in Georgia and, as a result, there can be no meaningful reform unless it has access to the injunctive powers of a federal court. Due to various perceived deficiencies, Colonial contends that the equitable relief afforded by Georgia state courts would be insufficient to address these systemic concerns. Second, Colonial argues that the multiplicitous number of suits it must pursue to appeal the valuation and assessment of its properties is not only inefficient and burdensome, but would also lead to disparate results among the different forums on the basic questions of valuation and equalization. 11
In order to constitute a “plain, speedy, and efficient remedy,” the Supreme Court has stated that the remedies provided in a state court must provide a taxpayer “with a full hearing and judicial determination at which she may raise any and all constitutional objections to the tax.”
Rosewell,
In assessing the adequacy of state court remedies, the Supreme Court, however, has instructed that the “plain, speedy, and efficient” exception to the Tax Injunction Act must be construed narrowly.
Grace Brethren Church,
On remand, the district court should apply these principles in determining whether Colonial’s state remedies afford it an opportunity for judicial determination of its constitutional claims against Georgia’s ad valorem tax system. Colonial, however, also contends that state remedies are not “plain, speedy, and efficient” because Georgia state courts will not entertain jurisdiction of a suit brought under 42 U.S.C. § 1983 “founded only on the claim that [ad valorem tax] assessments are unequal.”
See Backus v. Chilivis,
We believe that this contention misper-ceives the nature of a federal court’s inquiry into the adequacy of state remedies under the Tax Injunction Act. The mere fact of the availability or unavailability of a section 1983 suit in state courts is not the linchpin to such analysis.
Cf. Rosewell,
On remand, the district court must also seek to develop a fuller record on Colonial’s allegations that Georgia state court remedies are inefficient and fraught with delays. Despite its “ ‘procedural interpretation’ ” of the phrase a “ ‘plain, speedy, and efficient remedy,’ ”
Rosewell,
The Supreme Court has also suggested that state court relief may be delivered to a complainant with such delay as to render the underlying remedy inadequate.
See Rosewell,
We conclude that Colonial has alleged sufficient facts in support of its claim that Georgia does not provide an adequate remedy to survive a motion to dismiss for lack of subject matter jurisdiction. 15
*1247 For the foregoing reasons the judgment of the district court is REVERSED and the case REMANDED for further proceedings consistent with this opinion.
Notes
. In its complaint, Colonial alleges that it is entitled to bring this action as a class action, but the class has not yet been certified pursuant to Fed.R.Civ.P. 23(c).
. Failure by a public utility to file a return with the state results in forfeiture of the corporate charter or the taxpayer’s permit to do business in the state. Ga.Code Ann. § 48-5-513 (Supp. 1990).
. Colonial also alleges that the assessment-ratio study which is performed in Georgia on an annual basis to ensure equalization and uniformity in county assessments is flawed because of poor methodology and incorrect data.
. Colonial also contends that this backlog of cases is further complicated by the Georgia statute governing tax refunds. Id. § 48-5-380. This statute requires that a claim of refund must be filed with each county and municipality to which a centrally-assessed taxpayer pays taxes within three years of the time that the taxes are actually paid. Because Colonial pays taxes to 37 counties and 11 municipalities, 48 refund claims are generated each year. Through 1987, Colonial has filed 144 claims for refund. Under the literal terms of section 48-5-380, these refund claims could be decided by taxing authorities of each county and be ripe for appeal to the various county superior courts prior to a hearing by the state Board on the underlying valuation and assessment issues.
.The proposed assessment is also sent to centrally assessed taxpayers at the same time it is sent to the county. Id. § 48-2-18(c).
. However, if the taxpayer notifies the state revenue commissioner and the county within 20 days that it intends to dispute the "proposed assessment”, the county is permitted to include in the county digest only the undisputed amount of tax. Id. § 48-2-18(c).
. In addition, Colonial contends that other 1988 amendments to Georgia’s ad valorem tax laws have the effect of delaying indefinitely the requirement that a county brings its tax digest up to the standard mandated by Georgia’s statutory and constitutional requirements by adopting relaxed statistical measurements to be used in assessment-ratio studies. See id. §§ 48-5-340 to -349.5.
. Nor are we impressed by Colonial’s contention that the impact of its requested relief would act only to increase the valuation and assessment of currently undervalued property. Indeed, as it noted in its brief, implementation of its requested relief could also have the equally likely alternative of
reducing
the assessments on Colonial’s own property. In actuality, Colonial is assert
*1243
ing that the ad valorem tax burden in Georgia should be redistributed; that is, it should pay proportionately fewer taxes while non-centrally assessed taxpayers should pay proportionately more.
See In re Gillis,
Similarly,
Hargrave v. McKinney,
We find support for this view in the Supreme Court's recent decision in
Missouri v. Jenkins,
— U.S. —,
.
See, e.g., Georgia R.R. & Banking Co. v. Redwine,
. In addition, it should be noted that Colonial’s allegations of the inadequacy of state remedies also stem from the backlog of hearings before the State Board of Equalization under the review and appeals process in effect before the 1988 amendments. On remand, the district court should also direct its attention to developing a record on the adequacy of these portions of the superseded scheme that are still relevant.
. On a number of occasions, it has been held that Georgia provides a "plain, speedy, and effi-dent remedy" under which a complainant may bring a challenge to the operation of the state’s ad valorem tax system.
See Waldron,
These cases deal with a number of different aspects of the remedies available in Georgia state courts, including administrative avenues of appeal and state suits in equity. On remand, they remain binding only to the extent to which their underlying premises were left unchanged by the 1988 amendments to the ad valorem tax system and other relevant intervening events. In addition, as we note below, the district court must consider whether the litigation burdens imposed by these remedies are so onerous as to render such relief inadequate. The burdens are not merely statutorily imposed, but are influenced by conditions on the courts’ docket which may change from year-to-year. Thus, the district court on remand should be mindful of the fact that its inquiry will be influenced by relatively recent or contemporaneous factors.
. The Supreme Court has also established a corollary to this rule that the availability of a state remedy may be so uncertain, unclear, or speculative that it does not constitute a "plain” remedy within the meaning of section 1341.
See Franchise Tax Bd. v. Alcan Aluminium Ltd.,
— U.S. —,
. Although a suit under section 1983 provides certain unique advantages to a complainant over a state remedy, including the provision of attorney fees, see Note, Clarifying Comity: State Court Jurisdiction and Section 1983 State Tax Challenges, 103 Harv.L.Rev. 1888, 1899-1902 (1990), we do not believe that these items, stand *1246 ing alone, lift the jurisdictional bar of section 1341. Cf. Waldron, 788 F.2d at 738 (holding that absence of class motion mechanism in state court does not render state remedies inadequate). Rather, the nonavailability of such a cause of action is merely one factor to be considered along with a searching examination of purely state law remedies in determining whether Colonial has an adequate remedy in Georgia state courts.
. Although not presently before us, we note that this issue implicates fundamental, but unresolved questions of whether a state court is
obligated
to take jurisdiction of a section 1983 claim.
See Arkansas Writers' Project, Inc. v. Ragland,
. Appellant also challenged the district court’s refusal to allow it discovery to determine whether the state provides a plain, speedy and efficient remedy. Since we are remanding this case for further factual development, we find it unnecessary to consider appellant’s particular discovery requests. We note, however, that “the district court must give the plaintiff an opportunity for discovery and for a hearing that is appropriate to the nature of the motion to dismiss.”
Williamson v. Tucker,
