OPINION ON REHEARING
On June 21, 2012, this court issued an opinion reversing the trial court’s judgment and remanding Appellants’ claims for declaratory judgment, for injunctive relief, and for a writ of mandamus asserted against all Appellees, to the trial court for further proceedings. Appellee City of Ale-do filed a motion for rehearing and motion for en banc reconsideration. After due consideration, we deny City of Aledo’s motion but withdraw our prior opinion and judgment dated June 21, 2012, and substitute the following in its place solely to correct a factual misstatement in our original opinion that both Cities
I. Introduction
The primary issue that we address in this appeal is whether the trial court erred by dismissing for want of jurisdiction Appellants’ claims against Appellees for declaratory judgment, for injunctive relief, and for mandamus. Because we hold that the trial court possesses jurisdiction over all of Appellants’ claims against all Appel-lees, we will reverse the trial court’s judgment sustaining Appellees’ pleas to the jurisdiction and remand Appellants’ claims to the trial court.
II. Factual and Procedural Background
Appellants own homes in Parker County, Texas. Appellants received tax bills from Parker County Appraisal District and paid the bills. At some point in the fall of 2008, Appellees realized that prior tax bills for the years 2003-2007 that were submitted by Parker County Appraisal District to Appellants — and paid by Appellants — had erroneously not included city taxes. Consequently, in October 2008, Parker County Appraisal District mailed Appellants a “notice” stating that “pursuant to the requirements of Property Tax Code section 25.21 [,]” Appellants’ properties had been “omitted” from the appraisal rolls for the past five years. The notices enclosed a tax bill for city taxes for the years 2003-2007, and the notices stated that the “total tax shown on the attached statement is due upon receipt.”
Appellants refused to pay the tax bills purportedly assessing back city taxes for the years 2003-2007, and City of Willow Park filed collection suits against Appellants. Appellants joined third-party defendants City of Aledo, Parker County Appraisal District, Parker County ARB, each of Parker County ARB’s members in their official capacity, and Larry Hammonds in his official capacity as Parker County Tax Assessor/Collector.
Appellees filed pleas to the jurisdiction, alleging that Appellants had not exhausted their administrative remedies and that, in any event, Appellees were entitled to governmental immunity. Following a hearing, the trial court granted Appellees’ pleas to the jurisdiction, ordering that all counterclaims and third-party claims asserted by Appellants were dismissed with prejudice.
Appellants perfected this appeal, raising one issue that contains three subissues. In subissues A and B, Appellants claim that their failure to pursue any protest procedures does not deprive the trial court of jurisdiction over their claims. In subis-sue C, Appellants claim that the doctrine of governmental immunity does not bar their claims.
III. Standard of Review
A plea to the jurisdiction challenges the trial court’s authority to determine the subject matter of the action. See Tex. Dep’t of Transp. v. Jones, 8 S.W.3d 636, 638 (Tex.1999). It is the plaintiffs burden to allege facts that affirmatively establish the trial court’s subject matter jurisdiction. See Tex. Ass’n of Bus. v. Tex. Air Control Bd.,
IV. The Trial Court’s Jurisdiction
Appellees’ pleas to the jurisdiction asserted two grounds for their contention that the trial court lacked jurisdiction over Appellants’ counterclaims and third-party claims for declaratory judgment, for in-junctive relief, and for mandamus: first, that Appellants failed to exhaust their administrative remedies under the tax code;
A. Exhaustion of Administrative Remedies
1. The Law
The statutory administrative review requirements of the tax code are mandatory and jurisdictional. See, e.g., Cameron Appraisal Dist. v. Rourk,
2. Application of the Law to the Present Facts
The October 3, 2008 “Notice of Omitted Property Determination” and the enclosed tax bill that Appellants received provided, in pertinent part:
This Notice is provided pursuant to the requirements of Texas Property Tax Code Sec. 25.21, which requires the chief appraiser, if he discovers that real property was omitted from an appraisal roll in any one of the five preceding years, to add the appraised value of the omitted property to the appraisal records as of January 1 of each year that it was omitted. Please be advised that the [City of Willow Park or City of Aledo] has informed me that the property described*917 above was located within its jurisdiction but was not included on its appraisal roll for the tax years described on the attached tax statement. Therefore, the property value must be supplemented to the City’s appraisal roll and [City of Willow Park or City of Aledo] taxes collected for each year that it was omitted.
You have the right to appeal this determination to the Parker County Appraisal Review Board (ARB)....
The total tax shown on the attached statement is due upon receipt and will be delinquent if not paid before February 1, 2010.
It is undisputed that the October 3, 2008 determination of omitted property was the only notice provided to Appellants, that tax bills were enclosed with the determination, and that Appellants did not file a protest.
The December 9, 2008 Parker County ARB order approving the supplemental appraisal records for 2008 provides:
ORDER APPROVING SUPPLEMENTAL
APPRAISAL RECORDS FOR 2008
On December 9, 2008, the Appraisal Review Board of Parker County, Texas, met to approve supplemental appraisal records for tax year 2008.
The board finds that the supplemental records, as corrected by the chief appraiser according to the orders of the board, should be approved and added to the appraisal roll for the district.
The board therefore APPROVES the supplemental records as corrected.
The chairman of Parker County ARB signed the order. Appellants did not file any type of protest from this order.
Appellees argue that séction 42.09, entitled “Remedies Exclusive,”
The notices sent to Appellants indicated that they were sent pursuant to section 25.21. That section provides:
§ 25.21. Omitted Property
(a) If the chief appraiser discovers that real property was omitted from an appraisal roll in any one of the five preceding years or that personal property was omitted from an appraisal roll in one of the two preceding years, he shall appraise the property as of January 1 of each year that it was omitted and enter the property and its appraised value in the appraisal records.
(b) The entry shall show that the appraisal is for property that was omitted from an appraisal roll in a prior year and shall indicate the year and the appraised value for each year.
Tex. Tax Code Ann. § 25.21 (West 2008) (emphasis added). This section addresses the situation in which property has been omitted from the appraisal district’s appraisal records. The remedy provided by this section is the entry of “the property and its appraised value in the appraisal records.” Id. (emphasis added).
The terms “property” and “taxing unit” are not interchangeable; the tax code defines the term “property” as “any matter or thing capable of private ownership” and defines the term “taxing unit” as including “an incorporated city or town (including a home-rule city).” Id. § 1.04(1), (12) (West 2008). When a statute defines a term, we
Here, Appellants’ properties were already properly appraised and entered in the appraisal records of Parker County for the years 2003-2007. Indeed, Appellants paid all property taxes assessed against their properties for the years 2003-2007. The problem here was that taxing units— specifically, the Cities — were not listed in the 2003-2007 Parker County appraisal records as taxing units in which Appellants’ properties were taxable. Thus, the taxes assessed against Appellants’ properties and paid by Appellants for the years 2003-2007 did not include city taxes. The remedy for omitted property set forth in section 25.21 — appraising the property as of January 1 of each year that it was omitted and entering the property and its appraised value in the appraisal records— accomplishes nothing here. Appellants’ properties were already properly appraised for the years 2003, 2004, 2005, 2006, and 2007 and were already properly entered in Parker County’s appraisal records for those years. No remedy is provided in section 25.21 for omitted taxing units.
Appellees also contend that' section 25.23(a)(1), entitled “Supplemental Appraisal Records,” authorized them to utilize section 25.21 to include the Cities as taxing units in supplemental 2008 appraisal records and that Parker County ARB’s December 9, 2008 order approved those supplemental appraisal records. Appel-lees then assert that Appellants should have protested the December 9, 2008 ARB order. Appellees’ argument fails for two reasons. First, section 25.23(1), like section 25.21, authorizes supplemental appraisal records that add omitted “property,” not omitted “taxing unit[s,]” and the
Appellees argue that supplemental appraisal records assessing back taxes are to be included in the current year’s appraisal records and cite Atascosa County v. Atascosa County Appraisal Dist.,
Appellees next contend that Atascosa County and section 11.43(i) support the proposition that the chief appraiser may utilize section 25.21 to add taxing units to the county’s appraisal records when those taxing units were omitted from the county’s appraisal records in prior years. Our review of Atascosa County and of section 11.43(i) reveals no such support. In Aias-cosa County, the county and the school district filed a challenge petition pursuant to tax code section 41.03 claiming that property owned by a previously not-for-profit hospital had been erroneously granted tax-exempt status after the hospital became a for-profit entity and sought back-appraisal for the previous five years.
Accordingly, in our de novo review of the trial court’s dismissal of Appellants’ claims for want of jurisdiction, we hold that based on the pleadings, the jurisdictional facts presented, and the relevant provisions of the tax code, Appellants’ failure to exhaust administrative remedies concerning the October 2008 section 25.21 notice and enclosed tax bill or concerning the December 9, 2008 Parker County ARB order approving supplemental appraisal records for 2008 falls within one of the doctrine’s exceptions — that being that Ap-pellees Parker County Appraisal District and Parker County ARB acted outside their statutorily authorized power by utilizing section 25.21 and/or section 25.23(a)(1) to assess back city taxes against Appellants based on the omission of taxing
B. Governmental Immunity Concerning Claims for Declaratory Judgment, Injunctive Relief, and Mandamus
1. Declaratory Judgments
a. The Law
The Declaratory Judgments Act (DJA) grants any litigant whose rights are affected by a statute the opportunity to obtain a declaration of those rights under the statute and requires that all relevant parties be joined in any declaratory judgment suit. Tex. Civ. Prac. & Rem. Code Ann. §§ 37.004, .006(a) (West 2008) (“When declaratory relief is sought, all persons who have or claim any interest that would be affected by the declaration must be made parties. A declaration does not prejudice the rights of a person not a party to the proceeding”); see also Tex. Lottery Comm’n,
A declaratory judgment action may also be brought by private parties seeking declaratory relief against state officials who allegedly act without legal or statutory authority; such suits are not suits against the State because “suits to compel state officers to act within their official capacity do not attempt to subject the State to liability.” IT-Davy,
b. Application of the Law to the Present Facts
Liberally construing Appellants’ pleadings, as we must, Appellants pleaded two declaratory judgment claims. See Miranda,
Our holdings above — that Appellants were not required to exhaust their administrative remedies because section 25.21 did not authorize Parker County. Appraisal District to add the Cities as taxing units of Appellants’ properties for the years 2003-2007, and that because neither section 25.21 nor section 25.23(a)(1) authorized Parker County ARB to supplement the Parker County Appraisal District’s appraisal records to add the Cities as taxing units of Appellants’ properties or to the extent section 25.23 did authorize the supplementation of the Cities’ appraisal rolls with Appellants’ properties, these Appel-lees failed to comply with the statutory requisites to do so — are dispositive of the pleas to the jurisdiction asserted by Larry Hammonds in his official capacity as tax assessor/collector and by the members of Parker County ARB in their official capacity concerning Appellants’ declaratory judgment claims.
The general rule in Texas is that courts do not interfere with the statutorily conferred duties and functions of an administrative agency. Westheimer ISD v. Brockette,
Appellants asserted a declaratory judgment action against Larry Hammonds in his official capacity as tax assessor/collector of Parker County Appraisal District and against each member of Parker County ARB in their official capacity, alleging in part that “immunity is waived or excepted by actions taken by government officials that are ultra vires of the scope of their- authority.” Construing Appellants’ pleadings liberally, as we must, we hold that the trial court erred by granting the plea to the jurisdiction of Appellee Ham-monds in his official capacity as Parker County’s Tax Assessor/Collector and the plea to the jurisdiction of Appellees who are the members of Parker County ARB sued in their official capacity on Appellants’ declaratory judgment action against them seeking a declaration that they acted outside their legal and statutory authority and that their actions were therefore void. Accord MHCB (USA) Leasing & Fin. Corp. v. Galveston Cent. Appraisal Dist. Review Bd.,
Appellants’ claim for a declaration of their rights under the tax code provisions likewise constitutes a proper declaratory judgment. See Tex. Lottery Comm’n,
Appellee City of Aledo concedes that the DJA provides a statutory waiver of governmental immunity in declaratory judgment actions for governmental entities that the Act requires to be joined. But Appellee City of Aledo nonetheless argues that it was not required to be joined to Appellants’ declaratory judgment action because Appellants do not seek construction of “any Aledo ordinance or franchise.” The Texas Supreme Court in Texas Lottery Commission rejected a similar contention, holding that “because the DJA permits statutory challenges and governmental entities may be bound by those challenges, the DJA contemplates entities must be joined in those suits.”
Finally, both City of Willow Park and City of Aledo claim that the DJA does not waive their immunity from suit because they claim Appellants are seeking to “recover damages.” Appellants do not seek “damages”; at most they seek a refund of the assessed back city taxes paid by some Appellants as a result of the allegedly void actions of Appellees or attributable to Appellees, Appellants pleaded that any Appellants “who made any full or partial payments of the illegal bills sent out by Larry Hammond did so under duress.” Thus, because Appellants pleaded that illegal taxes were paid under duress, governmental immunity does not bar Appellants’ claim for declaratory relief that also seeks the refund of illegally collected taxes. See, e.g., Tara Partners, Ltd.,
Reviewing de novo the trial court’s dismissal of Appellants’ declaratory judgment claims against all Appellees for want of jurisdiction, we hold that based on the pleadings and the jurisdictional facts presented, the trial court possesses jurisdiction over Appellants’ declaratory judgment actions against all Appellees.
2. Injunctive Relief
a. The Law
Although there is no implied private right of action- for damages against governmental entities for violations of the Texas constitution, suits for equitable remedies, like an injunction, for violation of constitutional rights are not prohibited. City of Beaumont v. Bouillion,
b. Application of the Law to the Present Facts
Appellants pleaded that Appellees had violated their due process and equal protection rights under the Texas constitution by voiding the tax bills issued to many landowners similarly situated to Appel
61. The Cities and Larry Hammonds are seeking to collect assessments from Counter-Plaintiffs and the class members11 for prior years, which assessments this lawsuit seeks to have declared void.
62. The Government Officials have committed various acts that are ultra vires of the scope of their authority under the Tax Code and that violate the due process and equal protection clauses of the Texas Constitution.
63. Specifically, the Tax Code limits the method and process by which the Government Entities and Government Officials may assess and collect taxes— that method and process constitutes due process for the taxpayers. By failing to operate within that method and process, the Government Entities and Government Officials have violated due process.
64. Additionally, the attempted collection of assessments from any Counter-Plaintiffs and class members who obtained their properties in the midst of the 2003-2007 period and the refusal to collect the taxes from the prior owners constitutes an equal protection violation.
65. Counter-Plaintiffs and the class members will suffer immediate and irreparable injury, loss, or damage if the collection of the assessments described above is not permanently enjoined because Counter-Plaintiffs could suffer the loss or diminution of their property via tax liens and significant penalties and interest through the imposition and collection of the assessments on their respective properties. Additionally, the loss of constitutional protection is irreparable harm.
66.Counter-Plaintiffs do not have an adequate remedy at law because money alone will not compensate for the imposition of illegal assessments on Counter-Plaintiffs’ properties or the failure of the Government Entities and Government Officials to comply with the law and the Texas Constitution.
Appellants sought an injunction enjoining Appellees from exceeding the scope of their authority and restraining them from collection of the “invalid assessments.”
Reviewing the trial court’s ruling on Ap-pellees’ pleas to the jurisdiction de novo and construing the pleadings liberally in favor of Appellants, we hold that the trial court erred when it determined that it lacked jurisdiction over Appellants’ claim for injunctive relief against all Appellees based on either Appellants’ failure to exhaust administrative remedies or Appel-lees’ alleged governmental immunity. See Lowell v. City of Baytown,
3. Mandamus
a. The Law
The Texas constitution empowers trial courts to issue writs of mandamus to compel public officials to perform minis
b. Application of the Law to the Present Facts
Appellants sought a writ of mandamus compelling the Government Officials (Larry Hammonds in his official capacity as Parker County Tax Assessor/Collector and each member of Parker County ARB acting in their official capacity) to void the assessments on Appellants’ properties by the Cities for the tax years 2003-2007 and to refund all ad valorem taxes paid to the Cities on Appellants’ properties for the tax years 2003-2007. Appellees argue that the trial court correctly granted their pleas to the jurisdiction on Appellants’ claim for a writ of mandamus because Appellants possess an adequate remedy at law.
Appellees’ adequate-remedy-at-law argument is not relevánt to whether or not the trial court possesses subject matter jurisdiction over Appellants’ pleaded claim seeking mandamus relief. The trial court possesses subject matter jurisdiction over Appellants’ claim for a writ of mandamus. See Tex. Const, art. V, § 8; In re Nolo Press/Folk Law, Inc.,
Accordingly, reviewing the trial court’s ruling on Appellees’ pleas to the jurisdiction de novo, and construing the pleadings liberally in favor of Appellants, we hold that the trial court erred when it determined that it lacked jurisdiction over Appellants’ claim for mandamus relief against all Appellees. See Tex. Const, art. V, § 8; In re Nolo Press/Folk Law, Inc.,
Having determined that the trial court possesses jurisdiction over all of Appel
V. Conclusion
Having determined that the trial court erred by granting Appellees’ pleas to the jurisdiction, we reverse the trial court’s judgment and remand Appellants’ claims for declaratory judgment, for injunctive relief, and for a writ of mandamus asserted against all Appellees, to the trial court for further proceedings consistent with this opinion.
Notes
. The term "Cities” as utilized herein refers to City of Willow Park and City of Aledo.
. The taxing entities in Parker County, including the Cities, contracted for Parker County Appraisal District to serve as their tax collector. See Tex. Tax Code Ann. § 6.24(a) (West 2008). Therefore, Hammonds, as the chief appraiser for Parker County Appraisal District, also serves as the Cities’ tax collector.
. Appellants also filed a plea to the jurisdiction. Appellants' plea alleged that the trial court lacked jurisdiction over the Cities’ claims against Appellants because the Cities had failed to exhaust their administrative remedies by failing to invoke the challenge petition procedure set forth in tax code section 41.03, entitled "Challenge by Taxing Unit” and authorizing a taxing unit to challenge before Parker County ARB the "failure to identify the taxing unit as one in which a particular property is taxable." Id. § 41.03(a)(5) (West 2008). The trial court did not rule on Appellants' plea to the jurisdiction; thus, the merits of Appellants’ plea to the jurisdiction are not before us in this appeal.
. All statutory citations herein are to the Texas Tax Code unless indicated otherwise.
. Section 42.09 provides, in part, that "procedures prescribed by this title for adjudication of the grounds of protest authorized by this title are exclusive.” Tex. Tax Code Ann. § 42.09(a) (West 2008).
. Appellants assert that the other exceptions to the exhaustion-of-administrative-remedies doctrine also apply here, but only a discussion of the acting-outside-statutory-powers exception is necessary to the disposition of this appeal. See Tex.R.App. P. 47.1 (requiring appellate court to address only issues necessary to final disposition of an appeal).
We note, however, that Appellants’ contention that the administrative-agency-cannot-grant-the-relief-requested exception to the exhaustion-of-administrative-remedies doctrine is also potentially dispositive because no protest procedures exist to contest an already-issued, statutorily unauthorized tax bill received from the tax assessor collector on already-appraised property. See Tex. Tax Code Ann. § 41.41(a)(9) (authorizing protest of actions of chief appraiser, appraisal district, or appraisal review board but not actions of tax assessor/collector); Dallas Cent. Appraisal Dist. v. 1420 Viceroy Ltd. P'ship,
. The cases relied upon by Appellees do not involve a challenge to the use of section 25.21 to add taxing units to a district’s appraisal records, as in this case, or allege that a government official or agency acted outside his or its statutory authority, as in this case; the cases relied upon by Appellees involve challenges to an appraisal. See Cameron Appraisal Dist.,
Likewise, City of Aledo’s contention that section 25.2 l's use of the phrase "omitted from an appraisal roll” could mean omitted from the city's appraisal roll fails because an appraisal district is not authorized to add a property to a city’s appraisal roll unless the city is first identified in the district’s records-as a taxing unit of the property. See Tex. Tax Code Ann. § 25.02(a)(ll) (West 2008) (indicating that district's appraisal records shall include an identification of each taxing unit in which the property is taxable), § 26.01(a) (West Supp.2012) (providing that the taxing unit's appraisal roll is that part of the district’s appraisal roll that lists the property taxable by the unit).
. That is, no supplemental appraisal record exists indicating that it is for any of the tax years 2003-2007 as required by section 25.23(b) and section 25.02(a)(10).
. Appellees argue that property owners are under a duty to pay taxes, even in the absence of a tax bill. See Tex. Tax Code Ann. § 31.01(g) (West Supp.2011); McPhail v. Tax Collector of Van Zandt Cnty.,
. Appellees’ pleas to the jurisdiction do not specifically address Appellants’ claim for in-junctive relief; the pleas generally assert failure to exhaust administrative remedies and governmental immunity as to all Appellants’ pleaded claims. Our review is limited to the grounds set forth in the pleas to the jurisdiction filed in the trial court. See City of Dallas v. First Trade Union Sav. Bank,
. Appellants filed a petition asserting a class action; this is their live pleading. However, the trial court granted Appellees' pleas to the jurisdiction prior to any class certification hearing or ruling.
