Process: 317/2014-T

Date: November 26, 2014

Tax Type: IMT

Source: Original CAAD Decision

Summary

CAAD Case 317/2014-T addresses a critical dispute over IMT (Municipal Tax on Onerous Transfers of Real Property) exemption for tourist development properties under Decree-Law 423/83. The claimant purchased a unit in a tourist development in 2006, with the public deed declaring IMT exemption under article 20(1) of DL 423/83, which exempts acquisitions of urban properties intended for installation of developments qualified as tourist utility. Eight years later, in 2014, the Tax Authority assessed IMT of €27,625 following an inspection. The claimant argued that buyers of units during first transfer should benefit from the same exemption as developers since the units remain part of the development's installation process. The claimant also invoked principles of legal certainty and good faith, noting the notary and land registrar approved the exemption, and the Tax Authority's late intervention after eight years violated consolidated rights. The Tax Authority countered that the exemption applies only during the installation phase (licensing, construction formalities) and not to commercial operation purchases. Additionally, the Tax Authority argued that notaries lack competence to determine tax situations, and automatic legal exemptions cannot be 'granted' or 'revoked' by administrative act. The case highlights tensions between automatic tax exemptions, the role of notarial control, temporal limits on tax assessments, and whether end-purchasers of tourist development units can benefit from developer-intended exemptions. The arbitral tribunal must balance strict interpretation of tax benefits against principles protecting taxpayer confidence in prior administrative validation.

Full Decision

ARBITRAL DECISION

CAAD: Tax Arbitration

Case no. 317/2014-T

Subject: IMT - Tax Benefits relating to a tourist development; Principle of legal certainty.

I – Report

  1. On 3.04.2014, the Claimant, A…, taxpayer number …, with domicile at Urbanisation …, in …, requested the CAAD to constitute an arbitral tribunal, pursuant to article 10 of Decree-Law no. 10/2011, of 20 January (Legal Framework for Arbitration in Tax Matters, hereinafter referred to as RJAT), against the Respondent Tax Authority and Customs Authority, with a view to annulling the assessment of Municipal Tax on Onerous Transfers of Real Property of 18.02.2014, in the amount of 27,625.00 €, referred to in document….

  2. The request for constitution of the arbitral tribunal was accepted by His Excellency the President of CAAD and notified to the Tax Authority and Customs Authority.

In accordance with and for the purposes of the provisions of article 6(1) of RJAT, by decision of the President of the Deontological Council, duly communicated to the parties within the applicable statutory periods, the undersigned was appointed as arbitrator, who communicated the acceptance of the appointment to the Deontological Council and to the Administrative Arbitration Centre within the applicable statutory period.

The Arbitral Tribunal was constituted on 11.06.2014.

  1. The Respondent, duly notified, presented its response and filed the administrative proceedings, pursuant to article 17 of RJAT.

  2. The grounds presented by the Claimant in support of its claim were, in summary, as follows:

a) That the purchase of the autonomous unit by the Claimant benefits from IMT exemption, under article 20(1) of Decree-Law no. 423/83, of 5 December, on the grounds that, in its view, the correct interpretation of this provision includes within its scope transfers made to purchasers of units at the time of their first transfer, the purchasers benefiting from the same status that the legislator intended to confer on the real estate developer, given that the units, as functional elements of the development as a whole, are still encompassed within the process of installation thereof.

b) That the assessment sub judice violates the principles of legal certainty and confidence and good faith, in that it disregards the prior control of the legality of the exemption by the Notary and the Conservator of Land Register and, furthermore, in that the AT, knowing and unable not to know of the granting of the exemption, only now demands payment of the tax it claims was omitted.

c) That the assessment constitutes the illegal revocation of a tax benefit established in the legal sphere of the Claimant in that a right was established in the legal sphere thereof which, not having been contested or revoked in due time, became consolidated, the tax act sub judice being in violation of articles 140 and 141 of the Code of Administrative Procedure.

  1. The ATA – Tax and Customs Administration, called upon to comment, contested the Claimant's claim, arguing, in summary, as follows:

a) The acquisition made by the Claimant does not fall within the installation of a development, as this emerges as a procedure comprising the legal acts and formalities relating to the licensing of urban operations necessary for the construction of a tourist development, as well as the obtaining of the titles that make it capable of functioning and being operated for the tourist purpose, whereas the acquisition made by the Claimant was, instead, intended for the commercial operation of the development, not benefiting, therefore, from the exemption established in the legal provision in question.

b) Contrary to what is argued by the Claimant, the assessment sub judice is not in violation of the principles of legal certainty and confidence and good faith, since the Notary and the Conservator are public authorities charged with a general supervisory duty, but without the competencies that would allow them to ascertain the legal-tax situation of the taxpayer, substituting themselves for the AT, whereby the Notary's understanding that the transaction would be exempt from IMT does not appear to be capable of vesting the Claimant with a right or legitimate expectation.

c) That the assessment does not constitute the illegal revocation of a tax benefit since the tax exemption provided for in article 20(1) of Decree-Law 423/83 is of an automatic nature, arising directly from law and being, consequently, incapable of being granted by an administrative act and even less by an entity without the powers to do so, as is the case with the Notary, the provisions of articles 140 and 141 not being applicable to the situation at issue.

  1. By order of 29.10.2014 it was decided to dispense with the holding of the meeting provided for in article 18(1) of RJAT, on the grounds of its unnecessary nature.

The parties presented written submissions in which they maintained their positions.

  1. The tribunal is materially competent and is regularly constituted in accordance with RJAT.

The parties have legal personality and capacity, are legitimate and are legally represented.

The proceedings do not suffer from any defects that would invalidate them.

  1. The following issues must be resolved:

a) Whether the purchase of the autonomous unit by the Claimant benefits from IMT exemption, under article 20(1) of Decree-Law no. 423/83, of 5 December.

b) Whether the assessment sub judice violates the principles of legal certainty and confidence and good faith.

c) Whether the assessment constitutes the illegal revocation of a tax benefit established in the legal sphere of the Claimant.

II – Relevant Facts

  1. The tribunal considers the following facts as proven:

  2. By public deed executed in the Notarial office of Loulé, in ….06.2006, the Claimant purchased from company B... - …, S. A., for the price of 425,000.00 €, the unit designated by the letters "BI", real property unit number …, on floor …, building …, of the urban property registered in the matrix of the parish of ... under no. …, classified for tourist purposes, integrated in the tourist development "C..." located on Avenue …, in …, parish of ... and municipality of Loulé.

  3. The aforementioned public deed states that "This transfer is exempt from payment of Municipal Tax on Onerous Transfers of Real Property, in accordance with the provisions of article 20 of Decree-Law no. 423/83 of 5 December".

  4. The public deed also contains certification of the "existence of the housing technical sheet and that it was delivered to the representative of the buyer".

  5. The property in which the unit is integrated had, at the date of the purchase and sale, the tourist use licence number …/05 of 30 September 2005, issued by the Municipal Council of Loulé, relating to the property, in its entirety.

  6. By order of the Secretary of State for Tourism, of … June 2005, provisional recognition of tourist utility was granted to the tourist development.

  7. By order of the Secretary of State of … May 2007, the tourist utility previously granted to the tourist complex "C..." of which company B...-…, SA is the operator was confirmed.

  8. On 18.2.2014, the Central Services of the General Directorate of Taxes proceeded to assess the Municipal Tax on Onerous Transfers of Real Property, in the amount of 27,625.00 €, referred to in document ….

  9. The assessment in question was based on the conclusions reached during the course of a tax inspection action, carried out by the Services of the Directorate of Finance of Faro, which took place from 18.07.2013 to 5.09.2013.

  10. From the conclusions of the inspection action report, dated 10.10.2013, the following appears, in particular:

"(…) According to article 20(1) of Decree-Law no. 423/83 and article 31(6) of Decree-Law no. 287/2003 of 12/11, acquisitions of urban properties intended for the installation of developments qualified as tourist utility are exempt from IMT and stamp duty is reduced to 1/5.

However, it was found that the taxpayer acquired the property located in a tourist development already built and installed, whereby it could not have benefited from such exemption in accordance with article 20(1) of Decree-Law no. 423/83 of 5/12, since only acquisitions of properties or autonomous units intended for the installation of developments qualified as tourist utility could benefit from IMT exemption.

This interpretation of the law is also defended in decision no. 3/2013 of 23 January of the Supreme Administrative Court, published in the Official Gazette 1st series no. 44 of 4/3/2013, relating to case no. 962/12 (…)".

  1. With relevance for the decision of the case, there are no unproven facts.

  2. The Tribunal's conviction as to the decision on the facts as proven was based on the documents filed with the proceedings by the Claimant (copy of the document evidencing the assessment sub judice and copy of the public deed of purchase and sale contract that gave rise thereto), as well as the documents contained in the administrative file.

III - Applicable Law

  1. Article 20(1) of Decree-Law 423/83, of 5 December provides that "Acquisitions of properties or autonomous units intended for the installation of developments qualified as tourist utility are exempt from transfer tax and inheritance and gift tax, stamp duty being reduced to one-fifth, provided that such qualification is granted even on a provisional basis, provided that it remains valid and the period set for opening the development to the public is observed".

The Claimant argues that the first acquisition of each autonomous unit as a housing unit of the tourist development is still encompassed within the process of installation of this development, meeting the legal conditions to benefit from the regime provided for in article 20 of Decree-Law no. 423/83, of 05-12, given the tourist utility recognised to this development by the Secretary of State for Tourism and which covers all the units that comprise it.

For its part, the Respondent expresses the view that, from the provision of article 20(1) of Decree-Law no. 423/83, of 05-12, only acquisitions of properties or autonomous units by developers with a view to constructing and installing tourist developments benefit, and not acquisitions of autonomous units (housing units) belonging to or integrated in developments already built and installed, with a view to their operation.

The Claimant and Respondent agree that the tax benefits provided for in article 20(1) of Decree-Law no. 423/83, of 05-12, are directed to the "installation" of developments declared to be of tourist utility, but differ, however, on the scope of that concept.

Let us examine this.

At the date of the purchase and sale contract that constitutes the taxable event underlying the assessment sub judice, Decree-Law no. 167/97 of 4 July was in force, whose article 9 provided that "For the purposes of this Decree-Law, the installation of tourist developments shall be deemed to be the licensing of the construction and or use of buildings intended for the operation of such developments".

On the other hand, article 24(1) of the same Decree-Law provided that "The operation of tourist developments depends solely on a tourist use licence, to be issued in accordance with the provisions of the following articles (…)".

In light of these provisions, we cannot fail to consider that, where a tourist use licence exists, the development is capable of operating and consequently is installed.

The issue was not substantially altered by the current legal regime for the installation, operation and functioning of tourist developments, established in Decree-Law no. 39/2008, of 7 March. As can be read in the decision of the STA no. 3/2013, of 23.01.2013, case no. 968/12, 2nd Section[1], in extended proceedings, in accordance with article 148 of the Code of Procedure in the Administrative Courts "the concept of installation of a tourist development comprises the set of legal acts and the formalities necessary for licensing (in the broad sense, comprising prior notifications or authorisations, as the case may be) of the urban operations necessary for the construction of a tourist development, as well as the obtaining of the titles that make it capable of operating and being operated for the tourist purpose".

In this same decision the Court standardized jurisprudence in the following terms:

"The concept of «installation», for the purposes of the benefits referred to in article 20(1) of Decree-Law no. 423/83, of 5 December, relates to the acquisition of properties (or autonomous units) for construction of tourist developments, after their urban operations have been duly licensed, aimed at benefiting companies engaged in the activity of promotion/creation thereof and not acquirers of autonomous units in developments built/installed under a plural ownership regime, since the latter has to do with «operation» and not with «installation»."

This understanding, which we adopt, as it appears to us to constitute the correct interpretation of the law, is currently consensual in the jurisprudence of the Supreme Administrative Court.[2]

Accordingly, we cannot fail to conclude that the purchase made by the Claimant was not intended for the installation of the development, whereby it does not fall within the provision of article 20(1) of Decree-Law no. 423/83, of 5 December, not benefiting, consequently, from the exemption provided for in this provision.

  1. Regarding the invocation that the assessment sub judice violates the principles of legal certainty and confidence and good faith, as alleged by the Claimant, it appears to us that the following aspects must be weighed:

  • The purchase made by the Claimant took place on 25.06.2006 and was executed before a Notary.

  • It was recorded in the deed that the purchase was exempt from IMT in accordance with the provisions of article 20 of Decree-Law no. 423/83 of 5 December.

  • In 2013, the Respondent initiated an inspection of the Claimant, resulting in the ATA's position to tax the acquisition in question, which was subsequently implemented by the assessment dated 18.02.2014.

Additionally, it should be noted that it follows from article 49(4)(a) of the IMT Code that Notaries must submit, by the 15th of each month to the General Directorate of Taxes, in electronic format "A list of acts or contracts subject to IMT, or exempt therefrom, executed in the preceding month, containing, in respect of each of these acts, the number, date and amount of the collection documents or the reasons for the exemption, names of the contracting parties, matriculation entries and respective parishes, or mention of omitted properties;"

On this matter, Sérgio Vasques writes "(…) if this principle of legal certainty, rooted in article 2 of the Constitution of the Republic, is directed to all areas of legislative activity and administrative practice, it is evident that in the tax field it has redoubled acuity, first of all because taxes represent a coercive removal of patrimony. In planning their activity and in managing their day-to-day operations, families and companies need to be able to rely on tax law and on the orientations of the administration, basing many of their decisions whose economic effects extend over time" (Manual Direito Fiscal, Almedina, 2011, p. 290).

For his part, Domingos Pereira de Sousa tells us that "As a legal principle, legal certainty is not confused with legal norms, but rather constitutes a structuring factor of the entire legal system and, therefore, is present both at the level of norm creation and in the planes of its interpretation and application to concrete cases" (Direito Fiscal e Processo Tributário, Coimbra Editora, 2013, p. 106).

Also on this important principle, Casalta Nabais writes that "A consideration that will still have to be made in the event that the administration or the legislator itself, through the imposition of a retroactive correct interpretation of tax law, seeks to recover taxes not collected by virtue of the previous unlawful interpretation of the administration excluding them from the scope of incidence or throwing them into tax benefits. Also to such a venire contra factum proprium does the principle of protection of confidence impose limits" (Direito Fiscal, Almedina, 3rd Edition, 2005, p. 150).

It appears to us that the violation of the principle of legal certainty by the administration, in cases where it consists of contradictory conduct, harmful to the confidence raised in the taxpayer, ends up resulting in the violation of the principle of good faith recognized in articles 59(1) and 68 of the TGL and constitutionally enshrined in article 266(2) of the Constitution of the Portuguese Republic.

In this regard, the STA considered in the decision of 28-01-2009, handed down in case 0699/08[3]:

"Although it has its primary domain of application regarding acts performed in the exercise of discretionary powers, the truth is that the possibility has been placed, namely, of the principle of good faith being applied in the case of acts performed in the exercise of binding powers, since the text of article 266 of the CRP does not show any restriction on its application to any type of administrative activity – see note 7 to the work cited above.

However, in the comparison between the principles of legality and good faith, each concrete situation must be weighed in order to be able to conclude whether the prevalence of the first, in the strict sense, results in a flagrant injustice to the taxpayer, causing him a disproportionate and intolerable harm.

Only in this latter case, the violation of the principle of good faith, in its dimension of protection of the confidence of individuals and as an integral part of the rule of law, in the broad sense, must have the effect of invalidating the tax act performed."

In the concrete case, it must be observed that the mention in the public deed that the transfer in question was exempt from IMT, the responsibility of the Notary, a professional endowed with public faith in the exercise of his function[4], is suitable for creating in the taxpayer the conviction that such exemption existed and that he would not have the obligation to bear the tax in question[5].

On the other hand, we consider that the circumstance that approximately seven years elapsed before the Respondent, in an inspection procedure, made explicit a different position is capable of solidifying such conviction.

However, it must also be observed that, in the case sub judice, it was not an action by the Respondent that created the conviction of the Claimant in the existence of the exemption and, on the other hand, that the law provides in articles 59(1)(e) and 68 of the General Tax Law, the mechanism, which the Claimant did not use, suitable for provoking the taking of position by the tax administration before the occurrence of the taxable event[6].

In these circumstances, the principles in question cannot be considered to have been violated.

It should be added that, it would still be considered that from the taxation in question there does not result for the Claimant, in the words of the STA decision of 28-01-2009, handed down in case 0699/08 cited above, "a flagrant injustice" nor a "disproportionate and intolerable harm", insofar as the same results only from the correct application of the law to the concrete case, in compliance with the principles of legality and equality.

Indeed, as was considered in this decision:

"(…) in the case "sub judicio", it is worth noting that no late-payment interest was assessed, the assessment (…), being justified by reasons of public interest and in accordance with rules of tax incidence that are uniformly applicable to all taxpayers in equal circumstances.

In this way, instead of being able to constitute a flagrant injustice for the applicants, the tax act of assessment performed contributed to the restoration of equality among those taxpayers."

For the reasons stated, the Tribunal considers that the tax act challenged is not in violation of the principles of legal certainty and confidence and good faith.

  1. The Claimant further argues that the assessment constitutes the illegal revocation of a tax benefit established in the legal sphere of the Claimant and article 140 of the Code of Administrative Procedure prohibits the possibility of revocation, the same applying in light of article 141 of the same Code and article 12(4) of the Statute of Tax Benefits[7].

However, it follows from articles 20 and 21 of Decree-Law no. 423/83, of 5 December, that the tax benefit in question is automatic, not depending on any administrative act of recognition by the administration[8].

Furthermore, it does not appear from the facts as proven to have occurred any administrative act of recognition of the tax benefit in question, nor does even the Claimant invoke the existence thereof.

Accordingly, as is plain to see, the assessment in question does not constitute revocation of a prior administrative act, the provisions of articles 140 and 141 of the Code of Administrative Procedure being inapplicable to the case at issue.

Therefore, it is concluded that the assessment in question does not constitute illegal revocation of a tax benefit.

IV - Decision

Accordingly, the arbitral tribunal decides to find the present request for arbitral pronouncement unfounded, the contested assessment remaining in force in the legal order.

Value of the action: 27,625.00 € (twenty-seven thousand six hundred and twenty-five euros), in accordance with the provisions of article 315(2) of the Code of Civil Procedure and article 97-A(1)(a) of the Code of Tax and Administrative Procedure and article 3(2) of the Regulation on Costs in Arbitration Proceedings.

Costs to be borne by the Claimant, in the amount of 1,530.00 € (one thousand five hundred and thirty euros), in accordance with article 22(4) of RJAT.

Lisbon, CAAD, 26 November 2014.

The Arbitrator

Marcolino Pisão Pedreiro

[1] Which can be consulted at "www.dgsi.pt"

[2] Following the judgment standardization decision referred to, this understanding was adopted in the decisions of the STA, of 23.1.2013, cases 01001/12, 01005/12 and 01069/12, of 30.1.2013, cases 0970/12, 0971/12, 0972/12, 0999/12, 01003/12 and 01193/12, of 6.2.2013, case 01000/12, of 8.2.2013, case 01004/12, of 17.4.2013, cases 01023/12 and 01002/12, of 23.4.2013, case 01195/12, of 11.9.2013, case 01049/13, of 25.9.2013, case 01038/13, of 9.10.2013, cases 01050/13, 1040/13 and 01015/13, of 18.10.2013, case 01048/13, of 30.10.2013, case 01052/13, of 13.11.2013, case 01054/13, of 4.12.2013, case 0824/13, of 29.1.2014, case 01043/13, of 5.2.2014, cases 01041/13, 01047/13 and 01917/13, of 26.2.2014, cases 0860/13 and 08763, of 2.4.2014, case 01914/13, of 9.4.2014, case 0859/13, of 28.5.2014, case 0291/14 and of 18.6.2014, case 01527/13, of 17.09.2014, case 01228/13, among others.

Arbitral decisions were also handed down in this sense in cases no. 102/2014-T and 104/2014-T.

[3] Which can be consulted at "www.dgsi.pt".

[4] In accordance with article 1(1) of the Statute of the Notariate "A notary is a jurist whose written documents, prepared in the exercise of his function, are endowed with public faith."

[5] It is to be noted, however, that there is no "presumption of legality" of the acts of the Notary in the tax area, the provision of article 49(6) of the IMT Code even establishing the joint and several liability of the Notary with the taxpayer "to the extent that they have collaborated in the failure to assess or collect the tax or (…) have not demanded the document evidencing payment or the exemption, as the case may be".

[6] In the words of Saldanha Sanches "when the taxpayer obtains binding information according to which fact y has regime x applied, the Administration cannot, even if it subsequently becomes convinced that the decision is wrong (…)" (Manual de Direito Fiscal, Coimbra Editora, 3rd Edition, 2007, p. 205).

[7] In the numbering at the date of the taxable event. Current article 14(4) of this legislation.

[8] As Jorge Lopes de Sousa writes "As it appears from the provision of article 65(1) thereof, in the absence of legal provision that foresees automatic benefit, its recognition is necessary. However, as it follows from the definition of automatic tax benefit that appears in article 4(1) of the Tax Benefits Statute, it is not necessary that this legal provision expressly refers to this automatism, it sufficing that it results from the law granting directly and immediately the benefit, without making its effectiveness dependent on prior recognition, which means that, in practice, there is an automatic benefit, whenever the law does not foresee the need for recognition" (Code of Tax and Administrative Procedure annotated and commented, Áreas Editora, 2006, pp. 508-509).

Frequently Asked Questions

Automatically Created

What is the IMT tax exemption for tourist development properties under Decree-Law 423/83?
Under article 20(1) of Decree-Law 423/83, acquisitions of urban properties intended for the installation of developments qualified as tourist utility are exempt from IMT. The key interpretive dispute is whether 'installation' encompasses only the developer's initial licensing and construction activities, or extends to first-time sales to end-buyers. The Tax Authority interprets 'installation' narrowly as the licensing procedures and formalities necessary for construction and obtaining operating titles, excluding subsequent commercial transactions. Claimants argue that functional units sold as part of the development's initial commercialization remain within the installation process since they're integral to the development as a whole.
How does the principle of legal certainty apply to IMT tax assessments in Portugal?
The principle of legal certainty in IMT assessments protects taxpayers from arbitrary or delayed tax enforcement. In this case, the claimant argued that an assessment made eight years after the transaction, following notarial and land registry approval of the exemption, violates legal certainty and legitimate expectations. The argument posits that when a notary certifies an exemption and the Tax Authority has knowledge of the transaction without timely challenge, taxpayers acquire consolidated rights. However, the Tax Authority maintains that notaries have supervisory duties but lack competence to definitively determine tax situations, and their certification cannot bind the Tax Authority or create legitimate expectations regarding automatic legal exemptions that arise directly from law rather than administrative grant.
Can buyers of tourist development units benefit from the same IMT exemption as the property developer?
This is the central question in the case. Buyers argue they should benefit from the same IMT exemption as property developers when purchasing units during first transfer, as the units remain functional elements of the development's installation. However, the Tax Authority's position is that the exemption under article 20(1) of DL 423/83 applies exclusively to the installation phase—the legal acts and formalities for licensing, construction, and obtaining operational authorization—not to subsequent commercial sales. Once the development obtains use licenses and tourist utility recognition, individual unit purchases for commercial operation fall outside the exemption's scope. The distinction hinges on whether 'installation' is an ongoing process encompassing initial commercialization or a completed phase ending when the development becomes operational. Based on the Tax Authority's arguments, end-buyers generally cannot benefit from developer exemptions unless they're directly involved in the installation activities.
What happens when the Tax Authority issues a late IMT assessment after a notary-approved exemption?
When the Tax Authority issues a late IMT assessment after notarial approval of an exemption, several legal issues arise. The taxpayer can challenge the assessment through administrative appeals or CAAD arbitration, arguing violation of legal certainty principles and legitimate expectations. However, the Tax Authority's position is that notaries lack authority to grant tax exemptions—they merely supervise transactions without competence to substitute for tax administration. Since IMT exemptions under DL 423/83 are automatic (arising directly from law), the notary's certification doesn't create administrative acts capable of being 'revoked.' Therefore, the Tax Authority maintains it can assess tax whenever it determines the legal requirements for exemption weren't met, regardless of notarial approval or time elapsed. The temporal limitation depends on statutory prescription periods, not the notary's initial acceptance of the exemption. Taxpayers facing such late assessments should examine whether the exemption legally applies and whether assessment deadlines were respected.
How does CAAD arbitration handle disputes over revoked IMT tax benefits for real estate transactions?
CAAD (Centro de Arbitragem Administrativa) arbitration for IMT tax benefit disputes follows the Legal Framework for Arbitration in Tax Matters (RJAT). The tribunal assesses three key issues: (1) whether the taxpayer legally qualifies for the claimed exemption based on statutory interpretation; (2) whether the assessment violates procedural principles like legal certainty, good faith, or legitimate expectations; and (3) whether the assessment constitutes illegal revocation of consolidated rights under articles 140-141 of the Administrative Procedure Code. The tribunal examines whether the exemption is automatic (arising from law) or requires administrative grant. For automatic exemptions, the Tax Authority's assessment doesn't 'revoke' a benefit but merely corrects an incorrect application. The arbitrators analyze the factual situation—property classification, licensing status, transaction timing, and parties' roles—against statutory requirements. They also evaluate whether third-party certifications (notarial, registry) create binding expectations. CAAD provides faster resolution than judicial courts, with specialized tax arbitrators reviewing both the substantive tax law interpretation and administrative law principles governing taxpayer protection.