Solar v. Ador , 246 Ariz. 146 ( 2019 )


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  •                                 IN THE
    ARIZONA COURT OF APPEALS
    DIVISION ONE
    SIETE SOLAR, LLC, et al., Plaintiffs/Appellants,
    v.
    ARIZONA DEPARTMENT OF REVENUE, et al., Defendants/Appellees.
    No. 1 CA-TX 18-0002
    FILED 1-29-2019
    Appeal from the Arizona Tax Court
    No. TX2014-000212
    The Honorable Christopher T. Whitten, Judge
    AFFIRMED
    COUNSEL
    Mooney Wright & Moore, PLLC, Mesa
    By Paul J. Mooney (argued) and Bart S. Wilhoit
    Counsel for Plaintiffs/Appellants
    Arizona Attorney General’s Office, Phoenix
    By Macaen F. Mahoney and Lisa Neuville (argued)
    Counsel for Defendants/Appellees
    OPINION
    Acting Presiding Judge Paul J. McMurdie delivered the opinion of the
    Court, in which Judge Kent E. Cattani and Judge Lawrence F. Winthrop
    joined.
    SIETE SOLAR, et al. v. ADOR, et al.
    Opinion of the Court
    M c M U R D I E, Judge:
    ¶1            Appellants Siete Solar, LLC (“Siete”), Mesquite Solar, LLC
    (“Mesquite”), and Perrin Ranch Wind, LLC (“Perrin”) appeal from the tax
    court’s dismissal of their complaint, and Arlington Valley Solar Energy II,
    LLC (“Arlington”) appeals the court’s grant of summary judgment for the
    Arizona Department of Revenue (the “Department”). We affirm the tax
    court’s    application    of   Arizona    Revised    Statutes    (“A.R.S.”)
    section 42-14153(C) and hold that a statutory amendment enacted after the
    valuation date that changes the method of valuation requires retroactive
    application to apply to the corresponding tax year.
    FACTS AND PROCEDURAL BACKGROUND
    ¶2            The parties do not dispute the facts in this case. Siete,
    Mesquite, Perrin, and Arlington (collectively “Taxpayers”), operate electric
    generation facilities that use renewable energy equipment. As part of the
    American Recovery and Reinvestment Act of 2009, Taxpayers received
    either an investment tax credit or a cash grant in lieu of the credit (either
    referred to as “tax incentive”) for a portion of the costs to build their
    respective facilities.
    ¶3            In February of each year, the Department provides a form to
    facility owners requesting information necessary for the valuation of
    property. A.R.S. § 42-14152(A). The Department then calculates the value of
    renewable energy equipment pursuant to A.R.S. § 42-14155 and A.R.S.
    § 42-14156 (collectively the “valuation method”). Before an amendment in
    2014, A.R.S. § 42-14155(B) directed the Department to value renewable
    energy equipment at “twenty per cent of the depreciated cost of the
    equipment,” but provided no definition of “cost.”
    ¶4            In 2013, Siete, Mesquite, and Perrin (the “2014 Appellants”)
    each submitted an annual report to the Department for the 2014 tax year
    reporting the cost of their facilities. The 2014 Appellants’ respective reports
    calculated their cost of the energy equipment by subtracting the amount
    received in tax incentives from the actual cost. However, the Department
    disallowed the deducted tax-incentive amounts before applying the
    valuation method to determine the properties’ full cash value (the “final
    valuation”). The Department’s refusal to deduct the tax-incentive amounts
    from the actual cost increased the 2014 Appellants’ tax liability. The 2014
    Appellants appealed to the State Board of Equalization, which upheld the
    Department’s final valuation. The 2014 Appellants appealed the Board’s
    decision.
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    SIETE SOLAR, et al. v. ADOR, et al.
    Opinion of the Court
    ¶5              While the 2014 Appellants’ appeal was pending in the
    superior court, the legislature enacted an amendment to A.R.S. § 42-14155
    (the “2014 Amendment”). The 2014 Amendment altered the valuation
    method by specifically allowing taxpayers to deduct tax incentives from the
    cost of renewable energy equipment. See A.R.S. § 42-14155(C)(4) (2014).
    Because the 2014 Amendment did not contain an emergency provision or a
    retroactivity clause, it became effective on July 24, 2014, the general effective
    date for legislation enacted during the 2014 session. See Ariz. Const. art. 4,
    pt. 1, § 1(3). Eventually, the 2014 tax year dispute resulted in an appeal to
    this court. See Siete Solar, LLC v. Ariz. Dep’t of Revenue (Siete I), 1 CA-CV
    15-0126, 
    2015 WL 8620672
    (Ariz. App. Dec. 10, 2015) (mem. decision). On
    appeal, the 2014 Appellants argued the 2014 Amendment should apply to
    their tax appeal because it became effective before the taxes in question
    were assessed. 
    Id. at *3,
    ¶ 12.
    ¶6            In August 2014, while the dispute over the 2014 tax year
    valuations continued, the Department issued the final valuations for the
    2015 tax year. Taxpayers had again reported their cost as the actual cost
    minus the tax incentives. The Department, applying the pre-amended
    version of A.R.S. § 42-14155, again disallowed the tax incentive amounts to
    be deducted from the actual costs before computing the Taxpayers’ final
    valuations. Taxpayers timely appealed the 2015 final determination directly
    to the tax court pursuant to A.R.S. § 42-16204. Taxpayers moved for
    summary judgment, asserting the Department was obligated to use the
    valuation method prescribed in the 2014 Amendment for their final
    valuations. Because the 2014 Appellants’ appeal was still pending, the tax
    court stayed the 2015 tax-year proceedings pending a decision in the prior
    case.
    ¶7            In Siete I, we concluded that the 2014 Amendment was not
    retroactive—nor was it a clarification of the law—and thus, it did not apply
    to the 2014 tax year. 
    2015 WL 8620672
    , at *4, ¶ 18. After the decision, the
    Department moved to dismiss the 2014 Appellants’ complaint for the 2015
    tax year based on issue preclusion and for summary judgment on
    Arlington’s claims. The tax court denied Taxpayers’ motion for summary
    judgment and granted the Department’s motions. Taxpayers timely
    appealed, and we have jurisdiction pursuant to A.R.S. § 12-2101(A)(1).
    DISCUSSION
    ¶8           Taxpayers argue on appeal that the tax court erred by: (1)
    granting the Department’s motion to dismiss the 2014 Appellants’ claims
    based on issue preclusion and granting the Department’s summary
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    SIETE SOLAR, et al. v. ADOR, et al.
    Opinion of the Court
    judgment motion against Arlington based on the decision in Siete I; and (2)
    not applying the 2014 Amendment to the 2015 tax year, resulting in the
    improper denial of Taxpayers’ motion for summary judgment on all claims.
    ¶9             We review the tax court’s dismissal of a complaint for failure
    to state a claim, Zubia v. Shapiro, 
    243 Ariz. 412
    , 414, ¶ 13 (2018), and grant of
    summary judgment, Sw. Airlines Co. v. Ariz. Dep’t of Revenue, 
    217 Ariz. 451
    ,
    452, ¶ 6 (App. 2008), de novo. Although Taxpayers’ appeal presents several
    procedural issues regarding the dismissal of the claims, we confine
    ourselves to the one substantive issue that is dispositive—whether the
    Department was required to calculate the 2015 tax year final valuations in
    accordance with the 2014 Amendment, which was enacted after the
    valuation date but prior to the date when the Department must determine
    the final valuation. Statutory interpretation raises questions of law and is
    reviewed de novo. Calpine Constr. Fin. Co. v. Ariz. Dep’t of Revenue, 
    221 Ariz. 244
    , 247, ¶ 12 (App. 2009).
    ¶10            Taxpayers contend the tax court misapplied the law because:
    (1) the legislature intended for the 2014 Amendment to apply to the 2015
    tax year; and (2) principles of retroactivity need not apply because the 2014
    Amendment was enacted before the Department set the final valuations for
    the 2015 tax year. Taxpayers assert the Department was not required to
    apply the law as it existed on the valuation date. Instead, they contend,
    A.R.S. § 42-14153(C) “merely fixes the date the parties must use to
    determine full cash value.” We understand the Taxpayers’ argument to be
    that the legislature may change the valuation method at any time during
    the valuation year and the application of the new valuation method to
    property—as it existed on the valuation date—is not a retroactive
    application of the law.
    A.     Unless the Legislature States Otherwise, the Law Governing the
    Valuation Method and Classification of Property is the Law in
    Effect on the Valuation Date.
    ¶11           The Department is charged with determining a property’s full
    cash value in accordance with A.R.S. Title 42, Chapter 14. The applicable
    statutes read as follows:
    On or before August 31 of each year the department shall find
    the full cash value of the property of each [electric generation
    facility] that operates in this state.
    A.R.S. § 42-14153(A).
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    SIETE SOLAR, et al. v. ADOR, et al.
    Opinion of the Court
    [T]he department shall determine the full cash value of
    taxable renewable energy equipment in the manner
    prescribed by this section.
    A.R.S. § 42-14155(A).
    The valuations required by this section are the values
    determined as of January 1 of the valuation year.
    A.R.S. § 42-14153(C).
    “Valuation year” means . . . the calendar year preceding the
    year in which the taxes are levied.
    A.R.S. § 42-11001(19)(a).
    Under these provisions, on or before August 31 of each year, the
    Department must determine the final valuation of taxable renewable
    energy equipment as it existed on January 1 of the same year, the valuation
    date. 1 The final valuation is then used to assess the tax for the upcoming
    year—the tax year.
    ¶12            Taxpayers make several arguments to support their
    contention that the valuation date does not “set” the law in effect on that
    date, it is merely a point in time to base the valuation. We disagree for the
    following reasons.
    1.    The Final Valuation May be Altered Only Pursuant to
    Statute.
    ¶13            Taxpayers argue that because the final valuation may be
    altered after the valuation date, A.R.S. § 42-14153(C) does not require the
    Department to use the law that is in effect on that date. As support, they
    cite A.R.S. § 42-14004 and A.R.S. § 42-15105(1). But these statutes do not
    support Taxpayers’ contentions. Although the legislature instructs the
    Department on the manner and method of valuation, it allows county
    assessors some discretion. Compare A.R.S. § 42-14155(A) (“[T]he department
    1      Although A.R.S. § 42-14153(C) refers to January 1 of the “valuation
    year,” A.R.S. § 42-11001(18) defines “valuation date” as “January 1 of the
    year preceding the year in which taxes are levied.” We refer to January 1 of
    the valuation year as the “valuation date” for brevity and because there is
    no distinction between the two dates.
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    SIETE SOLAR, et al. v. ADOR, et al.
    Opinion of the Court
    shall determine the full cash value of taxable renewable energy equipment
    in the manner prescribed by this section.”), with A.R.S. § 42-13051(B)(2) (an
    assessor must determine the full cash value “using the manuals furnished
    and procedures prescribed by the department”), and Berge Ford, Inc. v.
    Maricopa County, 
    172 Ariz. 483
    , 485 (Tax Ct. 1992) (“The criteria which the
    assessor applies are derived from applicable statutes, guidelines of the
    Department of Revenue, and policy from the assessor’s own office. The
    statutory framework which provides for the assessment of property
    contemplates that the assessor will exercise much discretion in deciding
    classification and valuation.”).
    ¶14            The Department values renewable energy equipment
    pursuant to statute. The legislature left no room for the Department to
    exercise its discretion when it determines the valuation of renewable energy
    equipment. Although Taxpayers’ cited statutes do allow for an alteration of
    the final valuation, the legislature has only authorized specific tax officers
    to revalue property under certain circumstances. See A.R.S. § 42-14004 (the
    Department may only change the valuation to properly reflect the
    property’s full cash value); A.R.S. § 42-15105(1) (the county assessor may
    change a property’s classification and value if the nature of the property
    has changed). Taxpayers have not pointed to—nor have we found—a
    statute that authorizes the Department to revalue property to account for a
    change in the valuation method after the valuation date. 2
    2.    The Valuations Determined Pursuant to A.R.S.
    § 42-14153(C) Require the Department to Apply the Law in
    Effect on the Valuation Date.
    ¶15          Next, Taxpayers assert that the language “as of” in A.R.S.
    § 42-14153(C) permits the Department to apply a valuation method that
    came into existence after the valuation date. They attempt to separate the
    valuation method from the valuation characteristics of the property, which
    are used to classify and appropriately value the property under the
    applicable valuation method. See Aileen H. Char Life Interest v. Maricopa
    County, 
    208 Ariz. 286
    , 291, ¶ 8 (2004) (“Four general elements comprise the
    2      Taxpayers argue in their reply brief and at oral argument that the
    Department selectively implemented portions of the 2014 Amendment by
    adopting depreciation tables. We decline to consider the argument as it was
    not raised in the opening brief. See ARCAP 13(a)(7); Stafford v. Burns, 
    241 Ariz. 474
    , 483, ¶ 34 (App. 2017) (the failure to develop an argument in a
    meaningful way constitutes waiver).
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    SIETE SOLAR, et al. v. ADOR, et al.
    Opinion of the Court
    formula by which Arizona measures a property tax: classification,
    valuation, assessment ratio, and tax rate.”). Taxpayers contend that A.R.S.
    § 42-14153(C) does not fix the law as it exists on the valuation date but fixes
    the characteristics of the property (e.g., the age of the property) as they exist
    on that date.
    ¶16           “We construe related statutes in the context of the statutory
    scheme and strive to achieve consistency among them. We also strive to
    avoid an absurd result, which is defined as one ‘so irrational, unnatural, or
    inconvenient that it cannot be supposed to have been within the intention
    of persons with ordinary intelligence and discretion.’” Ariz. Dep’t of Revenue
    v. S. Point Energy Ctr., LLC, 
    228 Ariz. 436
    , 439, ¶ 12 (App. 2011) (citation
    omitted) (quoting Perini Land & Dev. Co. v. Pima County, 
    170 Ariz. 380
    , 383
    (1992)). Absent statutory definitions, courts apply common meanings to
    words and phrases used in a statute. S. Point 
    Energy, 228 Ariz. at 440
    , ¶ 15.
    ¶17            A.R.S. § 42-14153(C) states that the valuations required are the
    “values determined as of” the valuation date. Taxpayers argue that if the
    legislature intended to bind the parties to the law “as if it was” on January
    1, it would have stated “on.” However, “as of” generally means at or on a
    specific time or date. See United States v. Munro-Van Helms Co., 
    243 F.2d 10
    ,
    13 (5th Cir. 1957) (“’As of’ means ‘as if it were.’”). Moreover, substituting
    the word “on” in the statute would alter its meaning. To read the statute as
    Taxpayers suggest would require the Department to determine all property
    valuations on the date of January 1, which is not the case. The Department
    starts the valuation process on January 1, the final valuations must be
    completed by August 31.
    ¶18             Additionally, the “valuation” is the result of applying the
    valuation method for the property as classified. See A.R.S. § 42-11001(6),
    (17) (valuation means the value determined as prescribed by statute).
    Accordingly, the “values determined as of [the valuation date]” necessarily
    include not only the application of the legal classification criteria as if it
    were the valuation date, see e.g., Phxaz Ltd. P’ship v. Maricopa County, 
    192 Ariz. 490
    , 492, ¶ 6 (App. 1998) (“For tax year 1995, the Maricopa County
    Assessor took the position that as of the valuation date of January 1, 1995,
    the 213-acre golf course parcel did not constitute a ‘golf course’ for the
    purposes of A.R.S. section 42-146(G).” (emphasis added)); SMP II Ltd. P’ship
    v. Ariz. Dep’t of Revenue, 
    188 Ariz. 320
    , 324 (App. 1996) (“Taxpayer responds
    by acknowledging the rule that a valuation decision must be based solely
    on evidence in existence as of the assessment date.” (emphasis added)), but
    also the law as if it were the valuation date, see A.R.S. § 42-16257.
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    SIETE SOLAR, et al. v. ADOR, et al.
    Opinion of the Court
    ¶19           Likewise, to interpret “as of” to mean anything other than “as
    if it were” would lead to an absurd result. Taxpayers take the position that
    because the legislature did not expressly direct the Department to
    determine property valuation by the valuation method ”in effect on the
    valuation date,” as it did in A.R.S. § 42-16257, the valuation date was not
    intended to set the law applicable to the valuation method. However, A.R.S.
    § 42-16257 only bolsters the Department’s interpretation. A.R.S. § 42-16257,
    which governs property valuation in the case of a correction, requires the
    Department to “use the valuation and legal classification criteria that were
    in effect on the valuation date for the tax year of the correction.” If
    Taxpayers are correct that the Department must apply the 2014
    Amendment to their final valuations—but when correcting an error for a
    similarly situated taxpayer, the Department is limited to the law in effect
    on the valuation date—it would yield an “absurd result” as it would violate
    our constitution. See Ariz. Const. art. 9, § 1 (“[A]ll taxes shall be uniform
    upon the same class of property . . . .”).
    B.     We Decline to Examine the Legislative Intent Because A.R.S.
    § 42-14153(C) Is Not Ambiguous.
    ¶20            Taxpayers additionally argue that as the primary goal in
    statutory interpretation is to give effect to the Legislature’s intent, the
    legislature showed its intent for the 2014 Amendment to apply to the 2015
    tax year by “expressly stat[ing] that the new law would be effective on the
    ‘general effective date,’” (which was July 24, 2014) in the HB2403 Fact Sheet.
    And because the “primary intent of the amendment to § 42-14155 was to
    resolve the issue of how to handle cash grants and investment tax credits in
    the context of statutory valuation,” Taxpayers maintain it would not be
    reasonable for the legislature to enact a statute to fix a problem, and “hold
    the statute in abeyance for over a year after it expressly decreed it would go
    into effect.”
    ¶21            We decline to create ambiguity in order to allow us to
    examine the legislature’s intent. “When the plain text of a statute is clear
    and unambiguous there is no need to resort to other methods of statutory
    interpretation to determine the legislature’s intent because its intent is
    readily discernable from the face of the statute.” State v. Christian, 
    205 Ariz. 64
    , 66, ¶ 6 (2003); see also U.S. W. Commc’ns, Inc. v. Ariz. Dep’t of Revenue, 
    193 Ariz. 319
    , 322, ¶ 12 (App. 1998). Taxpayers fail to identify any language
    within the statute that shows retroactive intent. See A.R.S. § 1-244 (“No
    statute is retroactive unless expressly declared therein.”); see also Aranda v.
    Indus. Comm’n of Ariz., 
    198 Ariz. 467
    , 470, ¶ 10 (2000) (“Statutes must contain
    an express statement of retroactive intent before retroactive application
    8
    SIETE SOLAR, et al. v. ADOR, et al.
    Opinion of the Court
    may occur.”); see also 2003 Ariz. Sess. Laws, ch. 37, § 4 (1st Reg. Sess.)
    (amending the definition of “renewable energy equipment” in A.R.S.
    § 42-14155(C) for valuation purposes); 
    id. at §
    8 (“This act is effective
    retroactively to from and after December 31, 2002.”); see also San Carlos
    Apache Tribe v. Superior Court ex rel. County of Maricopa, 
    193 Ariz. 195
    , 204–05,
    ¶ 14 (1999) (“Declarations of intent may be helpful in interpretation, but the
    text of a measure must be considered first and foremost.”).
    C.     The Legislature May Change the Law Governing the Valuation
    Method After the Valuation Date, but for the Department to Apply
    the New Valuation Method to the Final Valuation for the
    Corresponding Tax Year, the Statute Must be Denoted as
    Retroactive.
    ¶22          Taxpayers assert that retroactive application of the 2014
    Amendment is not necessary because applying a newly enacted valuation
    method is not a retroactive application of the law, so long as the law is
    enacted before the start of the tax year.
    ¶23            Previously, the 2014 Appellants argued that “the 2014
    amendment applie[d] to their tax appeals because the amendment became
    effective before the taxes in question were assessed.” Siete I, 
    2015 WL 8620672
    , at *3, ¶ 12; see also A.R.S. § 42-15051 (“[P]roperty is assessed for
    taxes levied under this title when its valuation is determined and lawfully
    placed on the roll.”). In this appeal, Taxpayers maintain that because the
    2014 Amendment was enacted before the subject tax year—rather than the
    date of assessment—retroactivity is unnecessary, and “[Siete I] does not,
    and could not, overrule or disapprove of” “the breadth of authority
    establishing that changes in valuation methods occurring during the
    valuation year are applied to the corresponding tax year without being
    retroactive.” The one tax case Taxpayers cite for the “breadth of authority”
    is Waddell v. 38th St. P’ship, 
    173 Ariz. 137
    (Tax Ct. 1992).
    ¶24            But, as before, “Taxpayers’ reliance on Waddell . . . is
    misplaced.” Siete I, 
    2015 WL 8620672
    , at *3, ¶ 12. In Waddell, several
    taxpayers prevailed in appealing their final valuations for the 1991 tax year
    after this court announced the standard the Department was to use to
    classify certain 
    property. 173 Ariz. at 138
    –39; see also Hayden Partners Ltd.
    P’ship v. Maricopa County, 
    166 Ariz. 121
    , 123 (App. 1990). Shortly thereafter,
    the legislature passed an amendment clarifying the standard. The
    amendment included an emergency provision and expressly provided for
    the statute to be retroactive to the 1986 tax year. 
    Waddell, 173 Ariz. at 139
    .
    The Department then sued the taxpayers who had succeeded in obtaining
    9
    SIETE SOLAR, et al. v. ADOR, et al.
    Opinion of the Court
    a different final valuation amount under the Hayden Partners standard for
    the 1991 tax year. 
    Id. The taxpayers
    appealed, arguing the retroactive
    application violated their due-process rights. 
    Id. at 140.
    The tax court held
    that “[t]he legislature has the power to make changes in classification
    standards at any time. It may make such changes retrospective, so long as,
    in doing so, it does not impair a vested right.” 
    Id. at 141.
    ¶25             Waddell does not support the Taxpayers’ position that a
    change in the law enacted after the valuation date must apply to the
    corresponding tax year even without a retroactivity clause. Although the
    amendment in Waddell included a retroactivity clause, Taxpayers claim that
    the retroactive statement was not necessary. They argue that unlike in
    Waddell, where the legislature enacted the amendment during the subject
    tax year, here the legislature knew that it was enacting the statute before
    the Department set the 2015 (the subject tax year) final valuations.
    However, given our statutory scheme’s prospective valuation process, for
    an amendment altering the valuation method enacted after the statutory
    valuation date to apply to the upcoming tax year, the amendment must be
    applied retroactively. See Daou v. Harris, 
    139 Ariz. 353
    , 357 (1984) (“[W]e
    presume that the legislature, when it passes a statute, knows the existing
    laws.”); see also Siete I, 
    2015 WL 8620672
    , at *4, n.4 (“Indeed, the legislature
    is aware of its power to make tax statutes retroactive, and has done so on
    many occasions when amending laws regarding the valuation of property.
    See, e.g., 2009 Ariz. Sess. Laws, ch. 169, §§ 1–2 (amending A.R.S. § 42-14403;
    relating to the valuation of telecommunications property, retroactively
    effective to December 31, 2008); 2002 Ariz. Sess. Laws, ch. 234, § 3
    (amendments relating to valuation of electric generation property and
    retroactively effective to January 1, 2002); 1994 Ariz. Sess. Laws, ch. 271,
    §§ 2–3 (amendments relating to valuation of telecommunications property
    and retroactively effective to January 1, 1994).”).
    ¶26            Alternatively, Taxpayers argue we should “adopt the same
    position that [the Department]” did in Waddell, that “application of the
    statutory amendment is not a retroactive application at all.” The
    Department’s position in Waddell was that the amendment was a
    clarification of the law, not a change in the law. However, Taxpayers
    conceded in addressing the procedural issues in this case that the 2014
    Amendment was a change in the law. Waddell represents a limitation on the
    legislature’s power to enact a statute retroactively when it affects a vested
    substantive right. It does not, however, suggest that a statute that does not
    affect a vested substantive right is presumptively applied retroactively.
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    SIETE SOLAR, et al. v. ADOR, et al.
    Opinion of the Court
    ¶27            Finally, Taxpayers insist that because “a statute is considered
    retroactive when it affects a vested right,” Gore v. Gore, 
    169 Ariz. 593
    , 595
    (App. 1991), and “taxpayers have no vested right in the factors used to
    determine the actual value of assessed property,” 
    Waddell, 173 Ariz. at 141
    (quotation omitted), the application of the 2014 Amendment’s valuation
    method should not be considered a retroactive application. They support
    their argument by focusing on the “completed events.” See 
    Aranda, 198 Ariz. at 471
    , ¶ 18 (“A property right ‘vests’ when every event has occurred which
    needs to occur to make the implementation of the right a certainty.”).
    ¶28             We find Taxpayers’ arguments do not apply. None of the
    cases address tax statutes. Nor do they concern a statute that specifically
    points to a date that the Department is required to base its final valuation.
    See 
    Gore, 169 Ariz. at 595
    (legislature’s amendment extending child support
    obligations from the age of majority to the child’s completion of high school
    was not considered a retroactive application because the statute was
    enacted before the parent’s right was vested on the child’s 18th birthday);
    Harrelson v. Indus. Comm’n of Ariz., 
    144 Ariz. 369
    , 370 (App. 1984) (statute
    applied retroactively that prevented administrative law judge from
    considering an untimely petition). Taxpayers’ mischaracterization of these
    cases, suggesting that the Department must apply a change in the law if it
    changes the method of valuation “at any time until the taxing process is
    complete” unless it affects a substantive vested right, is simply incorrect. See
    
    Aranda, 198 Ariz. at 470
    , ¶ 11 (“Enactments that are procedural only, and
    do not alter or affect earlier established substantive rights may be applied
    retroactively. Even if a statute does not expressly provide for retroactivity,
    it may still be applied if merely procedural because litigants have no vested
    right in a given mode of procedure.” (emphasis added)); In re Dos Cabezas
    Power Dist., 
    17 Ariz. App. 414
    , 418 (1972) (“The rule is that any right
    conferred by statute may be taken away by statute before it has become
    vested.” (emphasis added)). Because a statute may be applied retroactively,
    does not mean it must be applied retroactively.
    ¶29           As explained above, and in Siete I:
    Valuations are set by the Department annually the year prior
    to the tax year; that valuation is then used to determine the
    full cash value of taxable property in accordance with
    statutory methods provided depending on the type of
    property. A.R.S. § 42-14151.          The   legislature   has
    presumptively set the valuation date for property valued by
    the Department as “January 1 of the year preceding the year
    in which taxes are levied.” A.R.S. § 42-11001(18). Thus, the
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    SIETE SOLAR, et al. v. ADOR, et al.
    Opinion of the Court
    valuation method employed by the Department in this case
    was statutorily mandated to be the method in place on [the
    valuation date] unless the legislature specifically provided
    otherwise.
    
    2015 WL 8620672
    , at *4, ¶ 17. Taxpayers urge us to “avoid the temptation to
    rely on dicta from [Siete I].” We, nevertheless, reach the same conclusion.
    Because the language of A.R.S. § 42-14155 is unambiguous, and the
    amendment did not contain an express statement of retroactive intent, we
    reject the Taxpayers’ argument that the Department improperly calculated
    Taxpayers’ final valuation based on the version of A.R.S. § 42-14155 that
    was in effect on January 1, 2014.
    CONCLUSION
    ¶30          Accordingly, we affirm. As the Taxpayers have not prevailed,
    we deny their request for fees.
    AMY M. WOOD • Clerk of the Court
    FILED: AA
    12