WM. MATTHEW BYRNE, Jr., District Judge:
This appeal involves two companion cases brought by an United Kingdom corporation and its United States subsidiary corporation, respectively, for injunctive and declaratory relief to prevent officials of the State of California from assessing additional income taxes against the subsidiary.
I
Appellant in the first action (No. 80-4113) , Capitol Industries-EMI, Inc. (“Capitol”), is a Delaware corporation, with its principal place of business in California. Capitol is in the business of recording phonograph records and tapes for sale through commercial channels. Capitol contends that its business is conducted almost exclusively in the United States.
Appellant in the second action (No. 80-4114) , EMI, Limited (“EMI”), is a United Kingdom corporation, which owns more than 70% of the stock of Capitol.1 EMI owns a group of subsidiaries, fourteen of which operate outside of the United Kingdom. EMI, through its subsidiaries other than Capitol, is engaged in the same business as Capitol, but primarily in markets other than in the United States. In addition, EMI and its foreign subsidiaries, other than Capitol, are engaged in diversified businesses unrelated to the recording industry.
In the seven years involved in this tax dispute, 1968-1974, Capitol has paid annual income taxes in California.2 Neither EMI nor its subsidiaries, other than Capitol, have filed any income tax returns with the United States or any state therein. However, EMI and its other subsidiaries have paid income taxes in their respective home countries.
The Franchise Tax Board, State of California (“FTB”), contends that California law requires a combined report of a taxpayer, including all commonly owned or controlled corporations that are engaged in a unitary business. The FTB has determined that Capitol, EMI and other EMI subsidiaries are engaged in a single business. Therefore, the FTB has proposed to assess against Capitol an additional tax liability for the seven years in question, based on the state’s “unitary method” of taxation.3 It is this proposed assessment that Capitol and EMI challenge.
Application of the unitary scheme under California law, as proposed by the FTB, involves the combining of the net incomes of Capitol, EMI, and all of EMI’s other subsidiaries, related to the music portion of [1111] their businesses, and the apportioning of that combined income between California and the rest of the world, based on a formula using the California ratio of property, payroll, and sales, to the world-wide figures for the same factors.4
In the course of the FTB’s investigation of Capitol, it has demanded that Capitol provide certain business records of EMI, and EMI’s other subsidiaries, under the threat that Capitol’s failure to comply would result in a penalty assessment. EMI informed Capitol that it would not provide some of the information demanded because, under the Official Secrets Act of the United Kingdom, some of the information (presumably information related to military contracts entered into by EMI and the British government) is not disclosable. EMI refused to provide other information on the grounds that it either lacked access to such information, or because it asserts that California lacks jurisdiction over EMI and its non-United States subsidiaries.
Capitol filed a protest with the FTB concerning the proposed assessment, which is still pending.5 In addition, Capitol has petitioned the FTB to authorize the use of a reporting scheme other than the unitary method, as applied to the proposed assessment.6 Subsequent to oral argument on appeal, the FTB denied that petition.7
Capitol filed its action in United States District Court against William Bennett, Kenneth Cory, Richard Silberman and Martin Huff (“Board Members”), individually and as members of the FTB.8 Capitol seeks injunctive and declaratory relief to prevent the proposed assessment. Essentially, Capitol argues that unitary treatment of its business and that of EMI and other EMI subsidiaries is inappropriate under Califor[1112] nia law and violates the Foreign Commerce Clause of the United States Constitution, Art. I, Sec. 8, Clause 3.9
EMI filed its action in federal court against the identical defendants and asserts essentially the same claims as Capitol.10 Additionally, EMI alleges that the proposed assessment on its subsidiary Capitol would negatively affect its stock holdings in Capitol. Both EMI and Capitol also seek relief from the FTB’s demand that Capitol provide certain records of EMI and its foreign subsidiaries.
The Board Members filed motions to dismiss both actions. Capitol and EMI then filed motions for summary judgment. The district court treated the Board Members’ motions as motions for summary judgment, pursuant to Federal Rule of Civil Procedure 56. The district court denied Capitol’s and EMI’s motions and granted the Board Members’ motions on the ground that the Anti-Injunction Act precluded subject matter jurisdiction because a “plain, speedy and efficient” state court remedy existed for the claims asserted by Capitol and EMI. 28 U.S.C. § 1341.11 Capitol and EMI appeal from that order.
II
Section 1341 provides that “district courts shall not enjoin, suspend or restrain the assessment, levy or 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. § 1341.12 This statute has its roots in equity practice, the principles of federalism, and in recognition of the need of a state to administer its own fiscal operations, Tully v. Griffin, Inc., 429 U.S. 68, 73, 97 S.Ct. 219, 222, 50 L.Ed.2d 227 (1976); Great Lakes Dredge & Dock Co. v. Huffman, 319 U.S. 293, 298, 63 S.Ct. 1070, 1073, 87 L.Ed. 1407 (1943) (“Great Lakes”). This Court has held that Section 1341 also generally bars actions for declaratory relief against the assessment or collection of state taxes. See [1113] Housing Authority of the City of Seattle v. State of Washington, 629 F.2d 1307, 1310 (9th Cir. 1980);13 see also Great Lakes, 319 U.S. at 300, 63 S.Ct. at 1074. The jurisdictional bar of Section 1341 is not avoided by challenging the constitutionality of the state statute that authorizes the subject assessment or collection. Mandel v. Hutchinson, 494 F.2d 364, 366 (9th Cir. 1974) citing Matthews v. Rodgers, 284 U.S. 521, 525-26, 52 S.Ct. 217, 219, 76 L.Ed. 447 (1932). The issue here is whether California affords Capitol and EMI a “plain, speedy and efficient” remedy.
Ill
A
We first address the state remedies available to Capitol. Under California law, a suit for an injunction, declaratory relief, or other equitable process to prevent or enjoin the assessment or collection of any taxes is forbidden. Section 32, Art. XIII, Calif. Const.; Cal.Rev. & Tax Code § 26101 (assessment or collection of corporate or bank taxes). California, however, does provide corporate taxpayers with administrative and judicial remedies for challenging assessments. The taxpayer may petition the FTB to seek authorization to use a method other than the unitary method of reporting. Cal.Rev. & Tax.Code § 25137.14 In addition, a taxpayer that believes it has been illegally or excessively assessed may file a protest with the FTB. Cal.Rev. & Tax. Code § 25664.15 If the protest is denied, the taxpayer may file an appeal with the California State Board of Equalization. Cal.Rev. & Tax.Code § 25667.16 Upon the disposition of such an appeal, and payment of the assessed tax, the taxpayer may bring an action in state court against the FTB for a refund. Cal.Rev. & Tax.Code § 26102.17
This Court has held that such administrative proceedings, followed, if necessary, by a trial de novo in state court, provide a taxpayer with an adequate remedy, for purposes of Section 1341. See Mandel, 494 F.2d at 367;18 Aronoff v. Franchise [1114] Tax Board of the State of California, 348 F.2d 9, 11 (9th Cir. 1965) (“it has consistently been held, without a single instance of deviation that the refund action provided by California Personal Income Tax law is a ‘plain, speedy and efficient remedy’ such as to invoke the restraints of [section] 1341”);19 see also Harsh California Corp. v. County of San Bernardino, 262 F.2d 626 (9th Cir. 1958); Adams County v. Northwestern Pacific Railway Co., 115 F.2d 768, 775 (9th Cir. 1940) (ordinarily, an injunction in federal court is unavailable where the exclusive remedy is an action for refund).20
Capitol argues, however, that the application of the doctrine of exhaustion of administrative remedies renders its state remedies far less “speedy and efficient” than a declaratory or injunctive action in federal court.
It is unclear to what extent a taxpayer must exhaust its administrative remedies [1115] before bringing a refund action in California state court. A taxpayer can expedite the state proceedings by paying the proposed tax, filing a claim for refund, and then, after six months, filing a suit for refund in state court. Cal.Rev. & Tax.Code §§ 26073-26076. Capitol argues, however, that the failure to exhaust administrative remedies may limit the issues and evidence that can be presented in a state court action.
The jurisdictional bar of Section 1341 is not avoided where a state prescribes resort to administrative remedies before state court review. See George F. Alger Co. v. Peck, 347 U.S. 984, 74 S.Ct. 605, 98 L.Ed. 1120 (1954). Thus, even assuming that Capitol must exhaust its state administrative remedies to be assured of an effective adjudication in state court, the imposition of such a requirement does not necessarily render the state remedies inadequate for purposes of the Anti-Injunction Act. Although exhaustion of administrative remedies may result in a less speedy adjudication, it is also possible that the taxpayer may emerge victorious without the necessity of judicial action or that certain issues may be resolved prior to judicial action.21 See, e.g., People v. West Publishing Co., 35 Cal.2d 80, 216 P.2d 441 (1950) (exhaustion of administrative remedies affords Board the opportunity to rectify mistake in tax collection); Barnes v. State Board of Equalization, 118 Cal.App.3d 994, 173 Cal.Rptr. 742 (1981). In any event, the rule is not one of comparative remedies: “For a state remedy to be ‘adequate’ under [section 1341] it need not necessarily be ‘the best available or even equal to or better than the remedy which might be available in the federal courts’ ”. Mandel, 494 F.2d at 367; quoting Bland v. McHann, 463 F.2d 21, 29 (5th Cir. 1972), cert. denied, 410 U.S. 966, 93 S.Ct. 1438, 35 L.Ed.2d 700 (1973).
Capitol further argues that the unavailability of certain EMI business records renders the available state remedies ineffective. Capitol contends that it cannot force its parent, EMI, to provide documents necessary for Capitol to carry its burden before the FTB, the State Board of Equalization, or the state court, of establishing that the proposed assessment is inaccurate or illegal.22 Capitol argues that the lower state court will be limited to the evidence that is submitted to the administrative agencies. Therefore, if such records become available later, Capitol argues that it would be unable to present them in the state court.
Even assuming that records that might become available subsequent to the administrative proceedings would be precluded in a de novo trial in state court, this would not render Capitol’s state remedies inadequate.23 It is unclear how much evi[1116] dence is unavailable to Capitol and how relevant it is to the issue of the correct amount of the subject assessment.24 Moreover, it is mere speculation that any additional EMI records will be made available during the pendency of state administrative and judicial proceedings. Most important, Capitol’s asserted problem is not unique in kind, though it may differ in degree, from that faced by many taxpayers in suits challenging a proposed assessment; it may not have available all of the information necessary to carry its burden of establishing that the proposed assessment is inappropriate. Even if Capitol were afforded an immediate trial in federal court, presumably, the same records would still be unavailable.25
Finally, Capitol argues that its remedy in state court is inadequate because it is uncertain whether the state courts can consider constitutional challenges to the proposed tax assessment. A state remedy is adequate only where it is certain that the taxpayer can raise constitutional claims in the state court. See fully, 429 U.S. at 73, 97 S.Ct. at 222 (federal district court is under equitable duty to refrain from interfering with a state’s collection except where “an asserted federal right might otherwise be lost”); cf. Atlantic Coast Line, 262 U.S. 413, 43 S.Ct. 620, 67 L.Ed. 1051 (state remedy inadequate where there was uncertainty as to state court’s limitations on such a remedy).
The California Constitution prevents a state administrative agency from passing on constitutional questions. Art. 3, Sec. 3.5.26 Capitol suggests that because constitutional questions cannot be determined by the FTB or State Board of Equalization, the state court will not pass on such questions in a subsequent court action.
Although there is little case law interpreting Section 3.5, it is clear that the section does not preclude a taxpayer from raising constitutional claims in subsequent judicial actions. See, e.g., Japan Lines, Ltd. v. County of Los Angeles, 441 U.S. 434, 99 S.Ct. 1813, 60 L.Ed.2d 336 (1979) (California Superior Court ruled on the constitutionality of ad valorem tax application in refund action); cf. Fenske v. Public Employment Retirement System (P.E.R.S.) Board of Ad[1117] ministration, 103 Cal.App.3d 590, 163 Cal.Rptr. 182 (1980) (Section 3.5 does not deprive superior court of its power to declare unconstitutional a statute governing administrative agencies); Radtke v. Alcoholic Beverage Control Approval Board, 491 F.Supp. 42 (C.D.Cal.1980) (Section 3.5 does not preclude state court from determining constitutional issues upon review of administrative discipline of liquor licensee).27 Rather, Section 3.5 merely restrains administrative agencies from refusing to enforce state statutes on constitutional grounds and from declaring state statutes unconstitutional. See Goldin v. Public Utilities Commission, 23 Cal.3d 638, 688 n.18, 153 Cal.Rptr. 802, 822 n.18, 592 P.2d 289, 309 n.18 (1979).28 Therefore, constitutional challenges to tax assessments may be raised in the California courts. However, as stated above, in order to obtain state court review of constitutional challenges, a taxpayer must first exhaust its administrative remedies. Capitol argues that, under California law, its inability to provide the Board with certain evidence controlled by EMI will constitute a failure to exhaust, thus precluding state court review of the constitutional issues raised in this case.
Capitol bases this argument on Barnes, 118 Cal.App.3d 994, 173 Cal.Rptr. 742. In Barnes, the plaintiff brought a declaratory action in Superior Court alleging that the Board had wrongfully denied his claim for a refund of a tax overpayment and challenging the constitutionality of certain tax statutes and regulations. The district court granted the Board’s motion for summary judgment on the ground that the plaintiff’s refusal to provide the Board with documentation for his claim of overpayment constituted a failure to exhaust his administrative remedies. The granting of summary judgment was affirmed on appeal.
Barnes is clearly distinguishable from the present case. In Barnes, the plaintiff refused to provide the Board with evidence admittedly in his possession. As the court in Barnes explained, “[t]he doctrine of exhaustion ... requires a party to use all available agency administrative procedures for relief and to proceed to a final decision on the merits by the agency before he may resort to the courts.” 118 Cal.App.3d at 1001, 173 Cal.Rptr. at 746. The purpose of the exhaustion doctrine is to give the Board “the opportunity to rectify any mistake in tax collection.” Id. As the Barnes court recognized, a taxpayer could frustrate this policy if he were allowed to withhold from the Board evidence in his possession and then seek state court review.
In contrast, Capitol asserts that it cannot produce certain evidence possessed by another corporation. The exhaustion doctrine, as applied in Barnes, requires that the taxpayer do all he can to prevail in the administrative proceedings; it does not require that he do the impossible. If Capitol has provided the Board with all evidence within its control — a factual issue, which, under the doctrine, the Board has the first opportunity to determine — it will have “use[d] all available agency administrative procedures for relief” and, upon a “final determination on the merits” by the Board, will have exhausted its administrative remedies.
The inability to produce certain evidence may cause the taxpayer to lose in the administrative proceedings because he may be unable to carry his burden of proof. It will not, however, unlike the refusal to produce evidence, preclude judicial review of the Board’s determination and of any constitu[1118] tional challenges raised by the taxpayer. If it is Capitol’s contention that its inability to produce evidence possessed by EMI renders the subject assessment unconstitutional, that challenge too may be raised in state court following an unfavorable ruling by the Board; however, a favorable ruling by the Board would moot that issue — which is precisely the reason that the administrative proceedings should be allowed to run their course.
Thus, contrary to Capitol’s contention, the doctrine of exhaustion under California law does not preclude the constitutional review it seeks. Therefore, Capitol has a “plain, speedy and efficient remedy” within the meaning of Section 1341.
B
The district court treated the Board Members renewed motions to dismiss as motions for summary judgment and granted the motion in Case No. 80-4113. This Court has held, however, that an order of dismissal, and not a Rule 56 motion for summary judgment, is the proper method for disposing of an action in which subject matter jurisdiction is lacking. See O’Donnell v. Wien Air Alaska, Inc., 551 F.2d 1141, 1145 n.4 (9th Cir. 1977); Jones v. Brush, 143 F.2d 733, 735 (9th Cir. 1944). The principle underlying the rule is that the tenor of Rule 56 suggests that summary judgment thereunder deals with the merits of an action and not with matters of abatement. O’Donnell at 1145 n.4, quoting 6 J. Moore, Moore’s Federal Practice ¶56.03, at 56-57 [footnote omitted] (2d ed. 1976). Lack of subject matter jurisdiction is properly a matter in abatement. Id. It is, therefore, error to rule on a summary judgment motion “or any other matter going to the merits” where a court determines that it lacks jurisdiction over the subject matter. Id., citing Moore, supra at 56-57 & n.8.29
The proper remedy is for this Court to vacate the judgment entered in Case No. 80-4113 and to remand with directions to enter judgment dismissing the action for lack of jurisdiction. See Martucci v. Mayer, 210 F.2d 259, 261 (3d Cir. 1954), cited with approval in O’Donnell, 551 F.2d at 1145 n.4; but see Jones, 143 F.2d at 735 (judgment reversed and case remanded with directions to enter judgment dismissing the action).
IV
We now turn to the question of whether EMI has an adequate state court remedy.
The administrative procedures and refund suit provided by California law are remedies available only to taxpayers. Capitol, and not EMI, is the only California taxpayer involved in this controversy. Therefore, California does not provide EMI with an administrative or judicial remedy to challenge tax assessments.
The district court, however, concluded that EMI’s interests in opposing the subject assessment is “identical or substantially identical to that of [Capitol], which does have access to the state administrative agencies and state courts.” Thus, the court found the appellants’ interests “being identical,” EMI has “in effect a plain, speedy and efficient state remedy as to the matters for which it complains.” The district court therefore also granted summary judgment in favor of the Board Members and against EMI.
The claims of Capitol and EMI are substantially the same. Both seek to have the Board Members enjoined from imposing the subject assessment and from demanding EMI’s business records. The interests of the two corporations, however, are not necessarily identical. Although EMI contends that the proposed assessment would, in effect, constitute a tax on its non-United [1119] States business income and that of its other foreign subsidiaries, it is Capitol that would directly have to pay the assessment. Thus, while the harm that Capitol seeks to avoid is the payment of an additional assessment, EMI seeks to avoid a more indirect harm: the diminished return on and value of its stockholdings in its subsidiary corporation, Capitol.30
No authority has been presented for the proposition that a nontaxpayer, without state administrative or judicial remedies, is precluded under Section 1341 from maintaining an action in federal court because it has substantially similar interests and claims as a taxpayer that has such state remedies. A nontaxpayer that has stated a claim with respect to an assessment or collection is entitled to a judicial remedy in which they can participate as a party. See Builders & Developers Corp. v. Manassas Iron & Steel Co., 208 F.Supp. 485 (D.C.Md.1962) (nontaxpayer could invoke federal jurisdiction where state remedy was available only to taxpayer); see also D. C. Transit System, Inc. v. Pearson, 149 F.Supp. 18 (D.D.C.1957) (nontaxpayer could invoke federal jurisdiction), rev’d, 250 F.2d 765 (D.C.Cir.) (reversed upon reassurances that local remedies would be provided to nontaxpayer); cf. Pool v. Walsh, 282 F. 620 (9th Cir. 1922) (nontaxpayer had standing to enjoin collection of federal taxes); Shelton v. Gill, 202 F.2d 503 (4th Cir. 1953) (same).31 Because California does not provide EMI with an effective state remedy for its claims, Section 1341 does not bar the district court from exercising subject matter jurisdiction over such claims.32
[1120] V
Appellees argue that if EMI’s action is not precluded by Section 1341, it is barred by the Eleventh Amendment of the United States Constitution.
The Eleventh Amendment bars federal courts from hearing suits “commenced or prosecuted against one of the United States. Appellees contend that EMI’s action can only be brought in federal court if the state has waived its Eleventh Amendment immunity to such an action. This argument, however, presupposes that the Eleventh Amendment would otherwise bar that action.
EMI filed its action against state officials, members of the FTB. The Eleventh Amendment does not bar federal court actions against state officials to enjoin them from enforcing unconstitutional statutes. Ex Parte Young, 209 U.S. 123, 28 S.Ct. 441, 52 L.Ed. 714 (1908) (injunctive action against state attorney general restraining him from enforcing state railroad rate and penalty statute). A suit against state officials is not considered a suit against the state in violation of the Eleventh Amendment where the challenged actions of the officials (1) are beyond the authority granted to them by a valid statute or (2) are performed pursuant to an unconstitutional statute. In both situations, relief can be granted without inter-pleading the state. See Larson v. Domestic & Foreign Commerce Corp., 337 U.S. 682, 689-90, 69 S.Ct. 1457, 93 L.Ed. 1628 (1949); see, e.g., United States Steel Corp. v. Multistate Tax Commission, 367 F.Supp. 107, 115 (S.D.N.Y.1973), aff’d, 434 U.S. 452, 98 S.Ct. 799, 54 L.Ed.2d 682 (1978).
The Board Members are charged with acting unconstitutionally by applying the unitary tax method to a domestic subsidiary and its foreign parent. This case falls squarely within the doctrine of Ex Parte Young. In such cases, the Eleventh Amendment does not preclude access to the federal courts.
The state, however, will be deemed the real party in interest, for Eleventh Amendment purposes, if a money judgment is sought against defendants, which will have to be paid out of the state treasury. See Edelman v. Jordan, 415 U.S. 651, 94 S.Ct. 1347, 39 L.Ed.2d 662 (1974); Hutchinson v. Lake Oswego School District No. 7, 519 F.2d 961, 966 (9th Cir. 1975), vacated on other grounds, 429 U.S. 1033, 97 S.Ct. 725, 50 L.Ed.2d 744 (1977). Thus, a suit seeking a refund of taxes paid to a state is barred by the Eleventh Amendment even when nominally against state officials. Ford Motor Co. v. Dept. of Treasury, 323 U.S. 459, 65 S.Ct. 347, 89 L.Ed. 389 (1945); Rutledge v. Arizona Board of Regents, 660 F.2d 1345 at 1349 slip op. 5591 at 5596 (9th Cir. 1981). Although the present action might result in California receiving less tax revenue, EMI seeks prospective injunctive and declaratory relief against state officials, and not a money judgment against the state. Therefore, the Eleventh Amendment is not a bar to EMI’s action in federal [1121] court.33 Cf. Great Northern Life Insurance Co. v., Read, 322 U.S. 47, 64 S.Ct. 873, 88 L.Ed. 1121 (1944) (action against state tax collectors to recover monies wrongfully collected, enforceable by personal judgment); United States Steel Corp., 367 F.Supp. 107 (action to enjoin application by state officials of tax law).34
VI
The order granting summary judgment in Case No. 80-4113 is vacated and the case is remanded with directions to enter an order of dismissal on grounds of lack of subject matter jurisdiction.
The order granting summary judgment in Case No. 80-4114 is reversed and remanded.35
A court should not pass upon a constitutional question although properly presented by the record, if there is also present a statutory ground upon which the case may be disposed of. See, generally, Wood v. Strickland, 420 U.S. 308, 95 S.Ct. 992, 43 L.Ed.2d 214 (1975). This principle has varied application, id., and presumably applies where two grounds are presented for defeating subject matter jurisdiction. See, generally, 1 Moore’s Federal Practice ¶ 0.60[3], at 620-21 (2d ed. 1980). Thus, this Court should first consider whether the district court could exercise jurisdiction notwithstanding the proscriptions of the Anti-Injunction Act. If the district court order is affirmed on this ground, this Court need not reach the constitutional question presented by the Eleventh Amendment.
The Congressional Record indicates two secondary reasons behind the enactment of Section 1341. First, Congress was concerned with the added expense of litigating in federal courts that might make it financially unsound for state or local taxing authorities to contest a wealthy corporation’s tax liability. See Aluminum Co. of America, 522 F.2d at 1124, citing 81 Cong.Rec. 1416-17 (1937). Second, Congress intended to relieve the congestion in the federal courts by letting state courts settle what were viewed as essentially state controversies. Id.
The holding in Tully neither mandates nor intimates that the Ninth Circuit must abandon its rule, which appears consistent with prior Supreme Court decisions, that a refund action in state court provides a taxpayer with an adequate remedy. See Great Lakes, 319 U.S. at 298, 63 S.Ct. at 1073 (federal courts in equity will deny relief to the taxpayer “especially where the state ... has set up its own adequate procedure for securing to the taxpayer the recovery of an illegally exacted tax”); Matthews v. Rodgers, 284 U.S. 521, 526, 52 S.Ct. 217, 220, 76 L.Ed. 447 (1932) (payment of tax under protest and suit for recovery saves taxpayer his federal rights and defeats the federal court’s jurisdiction to enjoin collection). The holding of Aronoff is also consistent with the express legislative intent of Section 1341, not to interfere with state assessment and collection of taxes, see pp. 1113-1115 and note 16 supra, and the law of other circuits. See Nonresident Taxpayers Ass. v. Municipality of Philadelphia, 478 F.2d 456, 458 (3d Cir. 1973) (Pennsylvania refund suit provided adequate remedy); Helmsley, 320 F.2d 476 (Michigan refund action); see also Houston, 347 F.2d at 199 (Texas implied action for refund may constitute an adequate remedy).
Capitol argues that postpayment actions are inherently less speedy than prepayment actions. Section 1341, however, does not mandate the “speediest” remedy in order to preclude subject matter jurisdiction in federal district court. To the extent that a postpayment action is less speedy than a prepayment action, a point not conceded by appellees, a taxpayer’s interest in having the speediest remedy possible is outweighed by the burden that prepayment actions might impose on a state’s administration of its taxation system.
It does not necessarily follow from West and Barnes that the California courts would prevent a taxpayer from presenting newly available evidence in a refund suit, where the correct amount of the subject assessment was raised before the FTB and the taxpayer provided the Board with the relevant documents within its control.
There is serious question whether EMI, as a non-taxpayer, has standing to challenge the proposed assessment against its subsidiary corporation, Capitol, or whether it has stated a claim upon which relief can be granted. These issues, however, were not the basis for the district court’s order granting summary judgment against EMI. Both issues, and any other grounds for dismissal or summary adjudication not raised on this appeal are appropriate for consideration in the first instance by the district court on remand.
The issue of standing, for example, was not raised expressly on this appeal. The issue of standing may involve factual determinations, which are appropriate for initial determination by the trial court. In addition, as a matter of judicial economy, deferring consideration of the standing issue, and any other potential grounds for dismissal of Case No. 80-4114, could be raised and determined at the same time.
Subsequent to oral argument on appeal, appellants moved for leave to file a supplemental memorandum concerning the issue of EMI’s standing. We hereby deny that motion.
In addition, the problem of circumvention of state procedures and of simultaneous litiga-tions can be minimized by the district court in many cases. For example, where appropriate, the district court has authority to stay a federal proceeding brought by an interested non-taxpayer, pending a determination of state administrative and judicial proceedings brought by the taxpayer. The district court also may dispose of actions brought by non-taxpayers, either before or after such a stay, where the non-taxpayer lacks standing, is not a real-party-in interest, or has failed to state a claim upon which relief can be granted. See note 31 supra.
We express no opinion as to whether a stay of Case No. 80 — 4114 is appropriate in the present circumstances. That determination is left for the Board Members to raise, if they desire, and the district court to consider in the first instance on remand. Among the factors the district court should consider in determining whether to stay such an action, is what imminent harm, if any, that EMI would suffer as a result of such a stay.
There is little doubt that the California courts will uphold the unitary tax scheme generally as authorized by state statute. See, e.g., Edison California Stores, Inc. v. McColgan, 30 Cal.2d 472, 183 P.2d 16 (1974). It is unclear, however, whether the California courts would uphold the application of the unitary method in the present case. Compare Chase Brass and Copper Co. v. Franchise Tax Board, 10 Cal.App.3d 496, 95 Cal.Rptr. 805 (1970) (application of unitary method to foreign operations overruled) with Firestone Tire & Rubber Co. v. Franchise Tax Board, Los Angeles Superior Court (No. 31243 1980) (application of unitary tax method to foreign operations upheld).
It may be desirable to allow the state courts to rule on the applicability of its unitary method in this case before the federal courts consider the constitutional issues presented. In view of this Court’s ruling that EMI does not have an adequate remedy in state court, however, it would be inappropriate to dismiss Case No. 80-4114 on abstention grounds. Nevertheless, the considerations relevant to the abstention argument may also be relevant to the issue of whether Case No. 80-4114 should be stayed pending a determination of Capitol’s claims in state court.