{"id":21334,"date":"2026-03-09T13:51:54","date_gmt":"2026-03-09T12:51:54","guid":{"rendered":"https:\/\/etl-ilia.es\/?p=21334"},"modified":"2026-03-09T14:03:38","modified_gmt":"2026-03-09T13:03:38","slug":"mortgage-appraisal-valuation-check-supreme-court","status":"publish","type":"post","link":"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/","title":{"rendered":"Valuation checks and mortgage appraisals: Supreme Court criteria"},"content":{"rendered":"

The determination of the value of transferred real estate constitutes a particularly relevant issue in taxes such as the Property Transfer Tax and Stamp Duty (ITP-AJD)<\/strong> or the Inheritance and Gift Tax<\/strong>. In this context, the tax administration has various mechanisms available to verify whether the value declared by the taxpayer corresponds to the real value of the transferred property.<\/p>\n

In this regard, the Spanish Supreme Court has recently ruled on the use of mortgage appraisals as a means of verifying property values<\/strong>, confirming that they may be used by the tax administration when certain circumstances are present.<\/p>\n

Judgment No. 55\/2026, of 26 January 2026 (appeal 4976\/2024)<\/strong> analyses the scope of the verification method provided for in Article 57.1.g) of the General Tax Law<\/strong>, relating to the use of the appraisal of mortgaged properties.<\/p>\n<\/div>

Mortgage appraisal as a means of valuation verification<\/strong><\/h2><\/div>

Article 57 of the General Tax Law<\/strong> establishes the different methods that the administration may use to verify the value of assets and rights declared by taxpayers.<\/p>\n

Among them is the method provided for in Article 57.1.g)<\/strong>, which allows the use of the appraisal of mortgaged properties carried out in accordance with mortgage market regulations<\/strong>.<\/p>\n

These appraisals are technical valuations normally carried out by authorised appraisal companies and used by financial institutions to determine the value of the property that serves as collateral in a mortgage transaction.<\/p>\n

The Supreme Court confirms that this type of appraisal may constitute a valid means of verifying the declared value<\/strong>, insofar as it is a valuation carried out in accordance with the applicable regulations.<\/p>\n<\/div>

Initiation of the valuation verification procedure<\/strong><\/h3><\/div>

One of the aspects analysed by the Supreme Court in the judgment concerns whether the administration must specifically justify the initiation of a valuation verification procedure.<\/p>\n

The Court states that the power to verify values forms part of the ordinary powers of the tax administration<\/strong>, and therefore its exercise does not necessarily require the prior existence of indications of fraud or irregularity.<\/p>\n

In particular, the Court considers that the existence of a significant difference between the value declared by the taxpayer and the value resulting from the mortgage appraisal<\/strong> may constitute a sufficient element to justify the initiation of a valuation verification procedure.<\/p>\n<\/div>

Relationship between the appraisal value and the real value of the property<\/strong><\/h2><\/div>

The judgment also analyses whether the administration must provide additional justification to identify the mortgage appraisal value with the real value of the transferred property.<\/p>\n

The Supreme Court considers that the administration may use such appraisal as a valid reference within the verification procedure<\/strong>, provided that the appraisal:<\/p>\n

\u2022 has been carried out in accordance with mortgage market regulations
\u2022 is duly justified from a technical perspective
\u2022 was known to the taxpayer<\/p>\n

In such cases, no additional specific justification is required to use the appraisal as a means of verifying the declared value.<\/p>\n

However, the taxpayer retains in all cases the right to challenge the administrative valuation<\/strong> through the corresponding review procedures.<\/p>\n<\/div>

Practical relevance in real estate transfers<\/strong><\/h2><\/div>

The criterion established by the Supreme Court has significant practical relevance in real estate transfer transactions.<\/p>\n

In particular, it may affect situations in which the value declared in the transaction is significantly lower than the value stated in the appraisal used to obtain mortgage financing.<\/p>\n

In such cases, the administration may consider that there is a sufficient discrepancy to initiate a valuation verification procedure in order to verify whether the taxable base of the tax adequately reflects the value of the transferred property.<\/p>\n<\/div>

Conclusion<\/strong><\/h2><\/div>

The Supreme Court ruling reaffirms the validity of the valuation verification method based on the appraisal of mortgaged properties provided for in Article 57.1.g) of the General Tax Law<\/strong>.<\/p>\n

According to this doctrine, the tax administration may use mortgage appraisal as a means of verification when there is a significant difference between the declared value and the appraisal value, without it being necessary to previously demonstrate indications of fraud.<\/p>\n

In any event, the taxpayer retains the right to challenge the administrative valuation<\/strong>, both through administrative procedures and before the contentious-administrative courts.<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":62,"featured_media":21333,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[144],"tags":[2043,2040,2042,2044,1945,2041,2045,2039],"class_list":["post-21334","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tax-advice-blog","tag-general-tax-law","tag-mortgage-appraisal","tag-property-transfer-tax","tag-property-valuation","tag-real-estate-taxation","tag-spanish-supreme-court","tag-tax-law-spain","tag-valuation-check"],"yoast_head":"\nMortgage appraisals and valuation checks: Supreme Court criteria<\/title>\n<meta name=\"description\" content=\"The Spanish Supreme Court confirms that mortgage appraisals may be used by the tax administration as a method to verify property values in real estate transactions.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mortgage appraisals and valuation checks: Supreme Court criteria\" \/>\n<meta property=\"og:description\" content=\"The Spanish Supreme Court confirms that mortgage appraisals may be used by the tax administration as a method to verify property values in real estate transactions.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/\" \/>\n<meta property=\"og:site_name\" content=\"ILIA ETL GLOBAL\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/IliaConsultoria\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-09T12:51:54+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-09T13:03:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/etl-ilia.es\/wp-content\/uploads\/2026\/03\/comprobacion-valores-fiscalidad.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"400\" \/>\n\t<meta property=\"og:image:height\" content=\"267\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Fernando Sivatte\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@IliaConsultoria\" \/>\n<meta name=\"twitter:site\" content=\"@IliaConsultoria\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Mortgage appraisals and valuation checks: Supreme Court criteria","description":"The Spanish Supreme Court confirms that mortgage appraisals may be used by the tax administration as a method to verify property values in real estate transactions.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/","og_locale":"en_US","og_type":"article","og_title":"Mortgage appraisals and valuation checks: Supreme Court criteria","og_description":"The Spanish Supreme Court confirms that mortgage appraisals may be used by the tax administration as a method to verify property values in real estate transactions.","og_url":"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/","og_site_name":"ILIA ETL GLOBAL","article_publisher":"https:\/\/www.facebook.com\/IliaConsultoria\/","article_published_time":"2026-03-09T12:51:54+00:00","article_modified_time":"2026-03-09T13:03:38+00:00","og_image":[{"width":400,"height":267,"url":"https:\/\/etl-ilia.es\/wp-content\/uploads\/2026\/03\/comprobacion-valores-fiscalidad.jpg","type":"image\/jpeg"}],"author":"Fernando Sivatte","twitter_card":"summary_large_image","twitter_creator":"@IliaConsultoria","twitter_site":"@IliaConsultoria","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/#article","isPartOf":{"@id":"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/"},"author":{"name":"Fernando Sivatte","@id":"https:\/\/etl-ilia.es\/en\/#\/schema\/person\/9f13a057001be31bb98dfbc3596a2a3a"},"headline":"Valuation checks and mortgage appraisals: Supreme Court criteria","datePublished":"2026-03-09T12:51:54+00:00","dateModified":"2026-03-09T13:03:38+00:00","mainEntityOfPage":{"@id":"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/"},"wordCount":3822,"commentCount":0,"publisher":{"@id":"https:\/\/etl-ilia.es\/en\/#organization"},"image":{"@id":"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/#primaryimage"},"thumbnailUrl":"https:\/\/etl-ilia.es\/wp-content\/uploads\/2026\/03\/comprobacion-valores-fiscalidad.jpg","keywords":["General Tax Law","mortgage appraisal","property transfer tax","property valuation","real estate taxation","Spanish Supreme Court","tax law Spain","valuation check"],"articleSection":["Tax Advice Blog"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/","url":"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/","name":"Mortgage appraisals and valuation checks: Supreme Court criteria","isPartOf":{"@id":"https:\/\/etl-ilia.es\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/#primaryimage"},"image":{"@id":"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/#primaryimage"},"thumbnailUrl":"https:\/\/etl-ilia.es\/wp-content\/uploads\/2026\/03\/comprobacion-valores-fiscalidad.jpg","datePublished":"2026-03-09T12:51:54+00:00","dateModified":"2026-03-09T13:03:38+00:00","description":"The Spanish Supreme Court confirms that mortgage appraisals may be used by the tax administration as a method to verify property values in real estate transactions.","breadcrumb":{"@id":"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/#primaryimage","url":"https:\/\/etl-ilia.es\/wp-content\/uploads\/2026\/03\/comprobacion-valores-fiscalidad.jpg","contentUrl":"https:\/\/etl-ilia.es\/wp-content\/uploads\/2026\/03\/comprobacion-valores-fiscalidad.jpg","width":400,"height":267},{"@type":"BreadcrumbList","@id":"https:\/\/etl-ilia.es\/en\/tax-advice-blog\/mortgage-appraisal-valuation-check-supreme-court\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Portada","item":"https:\/\/etl-ilia.es\/en\/"},{"@type":"ListItem","position":2,"name":"Valuation checks and mortgage appraisals: Supreme Court criteria"}]},{"@type":"WebSite","@id":"https:\/\/etl-ilia.es\/en\/#website","url":"https:\/\/etl-ilia.es\/en\/","name":"ETL ILIA","description":"Tax and Legal","publisher":{"@id":"https:\/\/etl-ilia.es\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/etl-ilia.es\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/etl-ilia.es\/en\/#organization","name":"ETL ILIA","url":"https:\/\/etl-ilia.es\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/etl-ilia.es\/en\/#\/schema\/logo\/image\/","url":"https:\/\/etl-ilia.es\/wp-content\/uploads\/2024\/11\/2024-Logo-ETL-ILIA-requadre-vermell-1.png","contentUrl":"https:\/\/etl-ilia.es\/wp-content\/uploads\/2024\/11\/2024-Logo-ETL-ILIA-requadre-vermell-1.png","width":500,"height":333,"caption":"ETL ILIA"},"image":{"@id":"https:\/\/etl-ilia.es\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/IliaConsultoria\/","https:\/\/x.com\/IliaConsultoria","https:\/\/www.linkedin.com\/company\/etl-ilia\/"]},{"@type":"Person","@id":"https:\/\/etl-ilia.es\/en\/#\/schema\/person\/9f13a057001be31bb98dfbc3596a2a3a","name":"Fernando Sivatte","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/ab1a763f4d39054faa3da4d6bb55bd56178593fb378147f9cbda65800d20e22e?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/ab1a763f4d39054faa3da4d6bb55bd56178593fb378147f9cbda65800d20e22e?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/ab1a763f4d39054faa3da4d6bb55bd56178593fb378147f9cbda65800d20e22e?s=96&d=mm&r=g","caption":"Fernando Sivatte"}}]}},"_links":{"self":[{"href":"https:\/\/etl-ilia.es\/en\/wp-json\/wp\/v2\/posts\/21334","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/etl-ilia.es\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/etl-ilia.es\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/etl-ilia.es\/en\/wp-json\/wp\/v2\/users\/62"}],"replies":[{"embeddable":true,"href":"https:\/\/etl-ilia.es\/en\/wp-json\/wp\/v2\/comments?post=21334"}],"version-history":[{"count":4,"href":"https:\/\/etl-ilia.es\/en\/wp-json\/wp\/v2\/posts\/21334\/revisions"}],"predecessor-version":[{"id":21339,"href":"https:\/\/etl-ilia.es\/en\/wp-json\/wp\/v2\/posts\/21334\/revisions\/21339"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/etl-ilia.es\/en\/wp-json\/wp\/v2\/media\/21333"}],"wp:attachment":[{"href":"https:\/\/etl-ilia.es\/en\/wp-json\/wp\/v2\/media?parent=21334"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/etl-ilia.es\/en\/wp-json\/wp\/v2\/categories?post=21334"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/etl-ilia.es\/en\/wp-json\/wp\/v2\/tags?post=21334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}