OPINION
This is an ad valorem tax case. The questions presented are 1) whether the cessation of agricultural use constitutes a change in the use of land which triggers the assessment of the “additional tax” provided under section 23.55(a) of the Property Tax Code (hereinafter referred to as “the rollback tax”), and 2) if so, whether the Tarrant County Appraisal District (“the District”) is barred from imposing the rollback tax on land owned by the Resolution Trust Corporation (“RTC”) on the basis of sovereign immunity. We hold that a cessation of agricultural use does trigger the rollback tax, but that assessment of the tax against the RTC is barred by the doctrine of sovereign immunity. The judgment of the trial court is reversed and rendered.
Prior to tax year 1992, the subject property owned by the RTC had been used for agricultural purposes and, therefore, qualified for appraisal as open-space land pursuant to Tex. Const. Art. VIII, § 1-d-l (1978, amended 1995) and Tex. Tax Code Ann. §§ 23.51-.57 (Vernon 1992 & Supp.1996) (“the Property Tax Code”). As а result, the property had been taxed on the basis of its production value as allowed under section 23.41(a) of the Property Tax Code. See Tex. Tax Code Ann. § 23.41 (Vernon 1992) (agricultural land “is appraised at its value based on the land’s capacity to produce agricultural products”).
According to the parties’ stipulation, the property ceased being used for agricultural purposes in tax year 1992. Consequently, the District changed the basis of its appraisal of the property from production value to market value pursuant to section 23.01(a) of the Property Tax Code.
See
Tex. Tax Code
Upon exhausting the administrative procedures necessary to challenge the District’s determination, the RTC filed suit in the 352nd District Court of Tarrant County, Texas. The case was tried to the court on stipulated facts. The trial court ruled that a change of use had occurred and that the District properly imposed the rollback tax against the properly. The rollback tax amounts to approximately $180,000 in additional tax against the property.
The first issue presented to this court is whether the cessation of agricultural use of the subject property is a “change of use” of the land under section 23.55(a) of the Property Tax Code requiring the assessment of the rollback tax. Our resolution of this issue must begin with an analysis of the statute itself.
See Cail v. Service Motors, Inc.,
Section 23.55(a) of the Property Tax Code provides, in pertinent part:
If the use of land ... changes, an additional tax is imposed on the land equal to the difference between the taxes imposed on the land for each of the five years preceding the year in which the change of use occurs that the land was appraised as provided by this subchapter and the tax that would have been imposed had the land been taxed on the basis of market value in each of those years....
Tex. Tax Code Ann. § 23.55(a) (Vernon 1992) (emphasis supplied). The statute was passed pursuant to an amendment to the Texas Constitution, Tex. Const. Art. VIII, § 1-d-1, for the purpose of promoting “the preservation of open-space land by authorizing the legislature to tax open-space land devoted to farm or ranch purposes on the basis of its productive capacity.”
Moore,
Pursuant to the authority granted to it under section 23.52(d) of the Property Tax Code, the State Property Tax Board 1 promulgated rules that reiterate the original intent of Article VIII, section 1-d-l of the Texas Constitution. These rules are contained in the Manual FOR the AppRaisal of AGRICULTURAL LaND (1990) (the “1990 Ag Manual”). They indicate that the rollback tax is assessed when the landowner stops using the land for agriculturаl purposes in order to recapture the taxes the owner would have paid had the property been taxed at market value for each year covered by the rollback. The pertinent rules are as follows:
The law imposes a “rollback” tax on 1-d-1 land when the owner stops using it for agriculture_ Under 1-d-l, the rollback tax is a penalty for taking the land out of agricultural production.
This penalty is commonly called a rollback because it recaptures the taxes the owner would have paid had his property been taxed at market value for each year covered by the rollback....
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... The rollback tax equals the difference between the taxes the owner actuallypaid in the five years preceding the change in use and the taxes the owner would have paid on his property’s market value.
Technically, the tax is a new, additional tax imposed by law on the date the cessation or change of use occurs. It has its own delinquency date, and it does not exist until the event that triggers the rollback occurs.
The property owner can trigger the rollback by ending agricultural operations or diverting the property to a non-agricultural use. Selling the property doesn’t trigger the 1-d-l rollback. If the property owner diverts only part of a property to a non-agricultural use, the rollback tax only applies to the changed portion.
The chief appraiser determines if and when the change of usе occurs and must send the owner written notice of the determination. If the owner does not protest the determination or the appraisal review board decides the use has changed, the tax assessor will calculate the amount of additional tax due, add the appropriate amount of interest, and send a rollback tax bill.
WHAT QUALIFIES AS A CHANGE OF USE?
A change of use is a physical change. The owner must stop using the land for agricultural purposes.
1990 Ag Manual, supra at 31.
When we give section 23.55(a) its plаin and ordinary meaning, we find that it simply means what it says: the rollback tax is imposed when “the use of land ... changes [from an agricultural to a nonagricultural use].” This interpretation is derived substantially from, and is consistent with, the State Property Tax Board’s construction of the statute. Accordingly, we hold that a triggering event for imposing the rollback tax of section 23.55(a) is the cessation of agricultural use of the property. Since that is precisely what occurred in this case, we find that thе trial court was correct in declaring that the RTC’s cessation of agricultural use constituted a change of use for rollback tax purposes.
During oral argument and in a post-submission letter brief, the RTC asserted for the first time that the trial court was without jurisdiction to adjudge the RTC liable for the rollback tax under the federal doctrine of sovereign immunity. The District contends that sovereign immunity does not bar the tax and that, even if it did, the defense of sovereign immunity has been waived becausе it was not raised in the trial court. In determining whether sovereign immunity may be asserted against the District, we find that the specific construction and application of federal substantive defenses involve questions of federal law.
2
See Larsen v. FDIC/Manager Fund,
Sovereign immunity is a jurisdictional bar to those claims that are “prosecuted against the United States.”
Cohens v. Virginia,
19 U.S. (6 Wheat) 264, 412,
“A waiver of sovereign immunity ‘cannot be implied but must be unequivocally expressed.’ ”
United States v. Mitchell,
The specific question of whether federal sovereign immunity may be raised for the first time on appeal, when, as in this case, the government agency claiming immunity consented to the trial court’s jurisdictiоn, was addressed in
United States v. U.S.F. & G.,
In another suit in Oklahoma brought by the United States for the Nations against the surety on a bond given by U.S.F. & G., U.S.F. & G. pleaded the former judgment as res judicata and asked for а determination of the accounts. In reply, the United States pleaded that the Missouri judgment was void because the court was “without jurisdiction to render the judgment” against the United States or the Nations. The district court concluded that the Missouri judgment barred the claim against U.S.F. & G., and the Tenth Circuit Court of Appeals affirmed.
The U.S. Supreme Court reversed and remanded. In doing so, it held that the Missouri judgment was void because the Missouri court did not have jurisdiction to adjudicate a claim against the United States or its dependent sovereignties, the Nations, without the consent of Congress. The Court expressly rejected the contention that the immunity defense was waived because the United States invoked the jurisdiction of the Missouri district court by filing a claim against U.S.F. & G. and by failing to object to the district court’s jurisdiction.
In holding that the sovereign immunity defense could not be waived by the mere consent of the government agency, the Court said:
It is a corollary to immunity from suit on the part of the United States and the Indian Nations in tutelage that [sоvereign ] immunity cannot be waived by officials. If the contrary were true, it would subject the government to suit in any court in the discretion of its responsible officers. This is not permissible.
The reasons for the conclusion that this immunity may not be waived govern likewise the question of res judicata. As no appeal was taken from this Missouri judgment, it is subject to collateral attack only if void. It has heretofore been shown that the suability of the United States ... whether directly or by cross-action, depends upon affirmative statutory authority. Consent [of Congress ] alone gives jurisdiction to adjudge against a sovereign. Absent that consent, the attempted exercise of judicial power is void. The failure of officials to seek review cannot give force to this exercise of judicial power. Public policy forbids the suit unless consent is given, as clearly as public policy makes jurisdietion exclusive by declaration of the legislative body.
Id.
at 513-14,
We deem the holding and rationale of
U.S.F. & G.
to be controlling here. The District does not dispute that the RTC is an agency of the United States that is entitled to rely on the sovereign immunity defense.
See
Financial Institutions Reform, Recovery, and Enforcement Act of 1989 (“FIRREA”), 12 U.S.C.S. § 1441a(b)(l)(A) (Law. Co-op. 1992) (RTC is an “instrumentality of the United States”). Therefore, applying the rule of
U.S.F. & G.,
we hold that the RTC may assert federal sovereign immunity for the first time on appeal even though its officials consented to the jurisdiction of the trial court by filing suit.
4
See United States v. Associated Air Transport, Inc.,
Having determined that the RTC may assert sovereign immunity for the first time on appeal, we must now determine whether there is any exрress congressional authority waiving the immunity for rollback taxes. The doctrine of sovereign immunity exempts agencies of the United States from liability for punitive fines or assessments, absent express congressional authorization.
Missouri Pac. R.R. v. Ault,
(g) Exemption from State and local taxation. The [RTC] and the Thrift Depositor Protection Oversight Board, the capital, reserves, surpluses, and assets of the Corporation and the Thrift Depositor Protection Oversight Board, and the income derived from such capital, reserves, surpluses, or assets shall be exempt from State, municipal, and local taxation except taxes on real estate held by the Corporation, according to its value as other similar property held by other persons is taxed.
12 U.S.C.S. § 1441a(g) (emphasis supplied).
In determining whether the exemption found in section 1441a(g) includes taxes in the nature of penalties or fines, we must construe it strictly in favor of immunity
In support of its argument that the rollback tax is a penalty for taking land out of agricultural production, the RTC primarily relies on the use of the word “sanction” in the statute to define the tax, see Tex. Tax Code Ann. § 23.55(f), (g), (j), and the authority granted the legislature in the Texas Constitution to “impose sanctions in furtherance of’ the open-space land policy. See Tex. Const. Art. VIII, § l-d-l(a) (emphasis supplied). The RTC also directs us to passages in the 1990 Ag Manual where the rollback tax is specifically defined as a “penalty for taking the land out of agricultural production.” 1990 Ag Manual, supra at 31 (emphasis supplied).
The District, on the other hand, relies on the express language of the statute and the 1990 Ag Manual that defines the rollback as an “additional tax.” Tex. Tax Code Ann. § 23.55(a); 1990 Ag Manual, supra at 31. According to the District’s analysis, the rollback tax is merely another tax on the property that is intended to recapture the taxes the owner would have paid had the property been taxed at market value for each of the five years preceding the change of use.
The pertinent parts of section 23.55 read as follows:
§ 23.55. Change of Use of Land
(a)If the use of land ... changes, an additional tax is imposed on the land ... plus interest at an annual rate of seven percent calculated from the dates on which the differences would have become due.
(b) A tax lien attaches to the land on the date the change of use occurs to secure payment of the additional tax and interest imposed by this section and any penalties incurred. The lien exists in favor of all taxing units for which the additional tax is imposed.
(c) The additional tax imposed by this section does not apply to a year for which the tax has already been imposed.
(d) If the change of use applies to only part of a parcel that has been appraised as provided by this subehapter, the additional tax applies only to that part of the parcel....
(e) ... The chief appraiser shall deliver a notice of the [change of use] determination to the owner of the land.... If the owner does not file a timely protest or if the final determination of the protest is that the additional taxes are due, the assessor for each taxing unit shall prepаre and deliver a bill for the additional taxes plus interest as soon as practicable....
(f) The sanctions provided by Subsection (a) of this section do not apply if the change of use occurs as a result of a sale for right-of-way or a condemnation.
(g) If the use of the land changes to a use that qualifies under Subehapter E of this chapter, the sanctions provided by Subsection (a) of this section do not apply.
(h) Additional taxes, if any, for a year in which land was designated for agricultural use as provided by Subchapter C of this chapter (or Article VIII, Section 1-d, of the constitution) are determined as provided by that subchapter, and the additional taxes imposed by this section do not apply for that year.
⅜ ⅜ ⅜ ⅜ ⅜ ⅜
(j) The sanctions provided by Subsection (a) do not apply to a change in the use of land if: [the land consists of a cemetery],
Tex. Tax Code Ann. § 23.55 (Vernon 1992 & Supp.1996) (emphasis supplied).
Under 1-d-l, the rollback tax is a penalty for taking the land out of agricultural production.
This penalty is commonly called a rollback because it recaptures the taxes the owner would have paid had his property been taxed at market value for each year covered by the rollback.
* * * * * *
Technically, the tax is a new, additional tax imposed by law on the date the cessation or change of use occurs. It has its own delinquency date, and it does not exist until the event that triggers the rollback occurs.
⅜ ⅜ ⅜: ⅜ ⅝ ⅝
... Rollback is a serious economic penalty that should not be imposed when circumstances beyond a property owner’s control cause an abnormally long but temporary suspension of agriculture.
1990 Ag Manual, supra at 31-82 (emphasis supplied).
The language of section 23.55 plainly characterizes the rollback tax as both an “additional tax” and as a “sanction.” This dual definition is carried forward in the 1990 Ag Manual where the rollback tax is not only described as an “additional tax,” but also as a “penalty” for taking land out of agricultural production. Therefore, we find that both the statute and the 1990 Ag Manual define the rollback as a tax in the nature of a penalty.
In giving the statute this construction, we have given serious consideration to the guidelines and procedures governing the rollback tax in the 1990 Ag Manual. “Construction of a statute by the administrative agency charged with its enforcement is entitled to serious consideration, so long as the construction is reasonable and does not contradict the plain language of the statute.”
Moore,
Contrary to the District’s reasoning, the rollback tax may have a penalty purpose, even though it is imposed on the market value of the property, has its own interеst calculation and delinquency date, and raises revenue for the taxing district. Our federal courts have recognized that taxes often have regulatory purposes in addition to raising revenue, but these purposes do not invalidate their status as taxes. In
United States v. Sanchez,
It is beyond serious question that a tax does not cease to be valid merely because it regulates, discourages, or even definitely deters the activities taxed. The principle applies even though the revenue obtained is obviously negligible, or the revenue purpose of the tax may be secondary....
Id.
at 44,
A tax on intoxicating liquor does not cease to be such because the sovereign has declared that none shall be manufactured, and because the main purpose in retaining the tax is to make law-breaking less profitable.
United States v. One Ford Coupe Auto.,
In
United States v. Ross,
The test of validity is whether on its face the tax operates as a revenue generating measure and the attendant rеgulations are in aid of a revenue purpose. The motives that move Congress to impose a tax are no concern of the courts. Furthermore, that an act accomplishes another purpose than raising revenue does not invalidate it.
Id. at 1145 (citations omitted).
Thus, the fact that the rollback tax is imposed on the value of the property to recapture taxes that would have been paid based on a market value appraisal, as the District correctly points out, does not preclude it from having the purpose of penalizing property owners for the act of ceasing to use their property for agricultural purposes.
Cf. Jackson v. Sharp,
Upon review of all relevant provisions of the Property Tax Code as well as the 1990 Ag Manual, we find that section 23.55(a) is capable of only one interpretation: it provides for the imposition of an additional revenue-raising tax as a penalty for changing the use of real estate that had been previously taxed as open-space land. Because the rollback tax is a penalty, and not merely a tax on real estate, the RTC is not liable for the tax under section 1441a(g) of FIRREA because there is no express congressional waiver for such a penalty.
Accordingly, the trial court’s judgment is reversed, and judgment is rendered that the District take nothing against the RTC.
Notes
. In 1991, the State Property Tax Board was abolished, and its duties and responsibilities were transferred to the Office of the State Comptroller.
. In arguing that the RTC has waived its immunity, the District relies exclusively on state decisional law.
See Davis v. City of San Antonio,
. In contrast, other types of federal defenses may be waived if not timely asserted in the trial court, where there is an opportunity to do so.
See
. However, we do not in any way condone the RTC’s tactic of filing suit against the District and then asserting on appeal that the trial court lacked jurisdiction. Rules 3.01, 3.02, and 3.03 of the Texas Disciplinary Rules of Professional Conduct collectively prohibit a lawyer from abusing the legal process by the filing of frivolous lawsuits, taking actions that unreasonably inсrease the cost or other burdens of litigation, and failing to disclose to the court a material fact or legal argument. Tex. Disciplinary R. Prof. Conduct 3.01, 3.02, 3.03 (1990), reprinted in Tex. Gov't Code Ann. tit. 2, subtit. G app. (Vernon Supp.1996) (State Bar Rules art. X, § 9). In this case, the RTC failed to raise the issue of sovereign immunity until the parties and the courts were burdened with months of litigation. At a minimum, the RTC’s conduct falls within the broad range of "abusive tactics,” which the Supreme Court of Texas sought to eliminate through its promulgation and adoрtion of "The Texas Lawyer’s Creed — A Mandate for Professionalism.”
. The RTC also argues that it is exempted from the tax under section 1825(b)(3) of FIRREA, which expressly exempts the Federal Deposit Insurance Corporation ("FDIC”) from “amounts in the nature of penalties or fines.” FIRREA, 12 U.S.C.S. § 1825(b)(3) (Law.Co-op.Supp.1996). The RTC asserts that it has the benefit of section 1825(b)(3) because it is entitled to the same powers and immunities as the FDIC under the law of agency.
See
FIRREA, 12 U.S.C.S. § 1441a(b)(1)(B). The District urges that the RTC is not entitled to the immunity afforded to thе FDIC under section 1825(b)(3) and that the RTC has its own immunity provision that does not exempt the RTC from rollback taxes. Since the RTC is immune from liability for any amounts in the nature of penalties or fines absent an express waiver of Congress under the doctrine of sovereign immunity,
see Olney Sav. & Loan Ass'n,
