{"id":924,"date":"2025-09-03T13:14:49","date_gmt":"2025-09-03T11:14:49","guid":{"rendered":"https:\/\/www.omniaaduanas.com\/noticia\/que-es-el-dua-y-por-que-es-obligatorio\/"},"modified":"2026-04-23T11:22:25","modified_gmt":"2026-04-23T09:22:25","slug":"what-is-the-sad-and-why-is-it-mandatory","status":"publish","type":"noticia","link":"https:\/\/www.omniaaduanas.com\/en\/news\/what-is-the-sad-and-why-is-it-mandatory\/","title":{"rendered":"What is the SAD and why is it mandatory?"},"content":{"rendered":"\n<p><\/p>\n\n\n\n<h2>Table of Contents<\/h2>\n<ol>\n    <li><a href=\"#What-information-does-the-SAD-contain?\">What information does the SAD contain?<\/a>\n    <li><a href=\"#How-is-the-SAD-submitted?\">How is the SAD submitted?<\/a>\n    <li><a href=\"#Import-export\">Import SAD vs. Export SAD<\/a>\n    <li><a href=\"#Conclusions\">Conclusions<\/a>\n    <\/li>\n<\/ol>\n\n\n\n<p><\/p>\n\n\n\n<p>If your company imports or exports goods, the <strong>SAD (Single Administrative Document)<\/strong> is the most important document in any customs operation.<\/p>\n\n\n\n<p>At Omnia Aduanas, we explain <strong>what it is, why it is mandatory<\/strong> and <strong>how we can handle it for you<\/strong> so that your shipments cross the border without delays or penalties.<\/p>\n\n\n\n<p>The <strong>SAD<\/strong> is the official document used to <strong>declare goods to Customs<\/strong>, both for <strong>imports<\/strong> and <strong>exports<\/strong>.<\/p>\n\n\n\n<p>It allows the Administration to be informed about the nature and value of the goods, calculate the corresponding taxes, and legally authorize their entry into or exit from the customs territory of the European Union.<\/p>\n\n\n\n<p><strong>The SAD is mandatory because:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>It informs the <strong>Tax Agency<\/strong> and <strong>Customs<\/strong> about the characteristics of the products.<\/li>\n\n\n\n<li>It is used to <strong>assess customs duties, VAT, and other taxes<\/strong>.<\/li>\n\n\n\n<li>It ensures <strong>compliance with trade, health, and safety regulations.<\/strong><\/li>\n<\/ul>\n\n\n\n<p>In short: <strong>without a SAD, there is no customs clearance.<\/strong> It is the document that makes your transaction a <strong>legal and traceable import or export operation.<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"What-information-does-the-SAD-contain?\" style=\"font-size:clamp(2.629rem, 2.629rem + ((1vw - 0.2rem) * 3.952), 5rem);\"><strong>What information does the SAD contain?<\/strong><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<p>The SAD is structured into several <strong>numbered boxes<\/strong>, each with a specific purpose. Among the most relevant details included are:<\/p>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile\"><div class=\"wp-block-media-text__content\">\n<ul class=\"wp-block-list\">\n<li>Details of the <strong>declarant, importer, or exporter<\/strong>.<\/li>\n\n\n\n<li>Commercial description and <strong>tariff classification (TARIC)<\/strong>.<\/li>\n\n\n\n<li><strong>Customs value<\/strong> and <strong>origin<\/strong> of the goods.<\/li>\n\n\n\n<li><strong>Requested customs procedure<\/strong> (import, export, transit, inward processing, etc.).<\/li>\n\n\n\n<li><strong>Tax calculation<\/strong> and applied exchange rate.<\/li>\n\n\n\n<li>Details of the <strong>means of transport and final destination.<\/strong><\/li>\n<\/ul>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.omniaaduanas.com\/wp-content\/uploads\/2025\/10\/Documentos-DUA-1024x576.webp\" alt=\"SAD Documents\" class=\"wp-image-630 size-full\" srcset=\"https:\/\/www.omniaaduanas.com\/wp-content\/uploads\/2025\/10\/Documentos-DUA-1024x576.webp 1024w, https:\/\/www.omniaaduanas.com\/wp-content\/uploads\/2025\/10\/Documentos-DUA-300x169.webp 300w, https:\/\/www.omniaaduanas.com\/wp-content\/uploads\/2025\/10\/Documentos-DUA-768x432.webp 768w, https:\/\/www.omniaaduanas.com\/wp-content\/uploads\/2025\/10\/Documentos-DUA-1536x864.webp 1536w, https:\/\/www.omniaaduanas.com\/wp-content\/uploads\/2025\/10\/Documentos-DUA.webp 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<p>Incorrect completion may lead to <strong>delays, penalties<\/strong>, or even the <strong>detention of the goods<\/strong>. That is why each field must be reviewed carefully and supported by proper documentation.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"How-is-the-SAD-submitted?\" style=\"font-size:clamp(2.629rem, 2.629rem + ((1vw - 0.2rem) * 3.952), 5rem);\"><strong>How is the SAD submitted?<\/strong><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<p>Currently, the SAD is submitted <strong>electronically<\/strong> through the <strong>Customs Single Window<\/strong> of the Tax Agency (AEAT).<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.omniaaduanas.com\/wp-content\/uploads\/2025\/10\/Negocio-de-gestion-de-importaciones-y-exportaciones-1024x683.webp\" alt=\"Import and export management business\" class=\"wp-image-628 size-full\" srcset=\"https:\/\/www.omniaaduanas.com\/wp-content\/uploads\/2025\/10\/Negocio-de-gestion-de-importaciones-y-exportaciones-1024x683.webp 1024w, https:\/\/www.omniaaduanas.com\/wp-content\/uploads\/2025\/10\/Negocio-de-gestion-de-importaciones-y-exportaciones-300x200.webp 300w, https:\/\/www.omniaaduanas.com\/wp-content\/uploads\/2025\/10\/Negocio-de-gestion-de-importaciones-y-exportaciones-768x512.webp 768w, https:\/\/www.omniaaduanas.com\/wp-content\/uploads\/2025\/10\/Negocio-de-gestion-de-importaciones-y-exportaciones-1536x1024.webp 1536w, https:\/\/www.omniaaduanas.com\/wp-content\/uploads\/2025\/10\/Negocio-de-gestion-de-importaciones-y-exportaciones.webp 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p><br>Although any company with an <strong>EORI number<\/strong> can submit it, <strong>the regulations are complex<\/strong> and require technical knowledge of tariffs, special procedures, and European tax regulations.<\/p>\n\n\n\n<p>That is why most companies <strong>delegate this task to an authorized customs agent<\/strong>, such as Omnia Aduanas S.L.<\/p>\n\n\n\n<p><strong>Working with a customs representative guarantees you:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Protection against possible penalties or incidents.<\/li>\n\n\n\n<li>Accurate declarations compliant with EU regulations.<\/li>\n\n\n\n<li>Fast, error-free procedures.<\/li>\n\n\n\n<li>Cost savings resulting from mistakes or unnecessary inspections.<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Import-export\" style=\"font-size:clamp(2.629rem, 2.629rem + ((1vw - 0.2rem) * 3.952), 5rem);\"><strong>Import SAD vs. Export SAD<\/strong><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<p>Although the SAD format is the same, the purposes and controls differ depending on the type of operation:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-background has-fixed-layout\" style=\"background-color:#e9f4ff\"><thead><tr><th><strong>Feature<\/strong><\/th><th><strong>Import SAD<\/strong><\/th><th><strong>Export SAD<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>Purpose<\/strong><\/td><td>Declare the <strong>entry<\/strong> of goods into the EU<\/td><td>Declare the <strong>exit<\/strong> of goods from the EU<\/td><\/tr><tr><td><strong>Taxes<\/strong><\/td><td><strong>VAT, customs duties, and charges<\/strong> are assessed<\/td><td>Generally <strong>VAT-exempt<\/strong> (zero-rated export)<\/td><\/tr><tr><td><strong>Controls<\/strong><\/td><td><strong>Health, technical, and safety<\/strong> controls<\/td><td>Controls focused on <strong>licenses and restrictions<\/strong><\/td><\/tr><tr><td><strong>EORI<\/strong><\/td><td>Mandatory<\/td><td>Mandatory<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Conclusions\" style=\"font-size:clamp(2.629rem, 2.629rem + ((1vw - 0.2rem) * 3.952), 5rem);\">Conclusions<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<p>The SAD is much more than a simple form: it is the document that gives legal validity to any import or export transaction. Completing it correctly ensures that your goods cross the border without delays, penalties, or unexpected costs.<\/p>\n\n\n\n<p>At Omnia, we help you manage the documentation to avoid penalties and setbacks that could disrupt your business operations.<\/p>\n","protected":false},"featured_media":627,"template":"","meta":{"_acf_changed":false,"_joinchat":[]},"class_list":["post-924","noticia","type-noticia","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.omniaaduanas.com\/en\/wp-json\/wp\/v2\/noticia\/924","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.omniaaduanas.com\/en\/wp-json\/wp\/v2\/noticia"}],"about":[{"href":"https:\/\/www.omniaaduanas.com\/en\/wp-json\/wp\/v2\/types\/noticia"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.omniaaduanas.com\/en\/wp-json\/wp\/v2\/media\/627"}],"wp:attachment":[{"href":"https:\/\/www.omniaaduanas.com\/en\/wp-json\/wp\/v2\/media?parent=924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}