{"id":11545,"date":"2026-01-31T10:52:50","date_gmt":"2026-01-31T09:52:50","guid":{"rendered":"https:\/\/www.in-diem.com\/form-721-cryptocurrencies-obligation-and-declaration"},"modified":"2026-01-31T10:52:50","modified_gmt":"2026-01-31T09:52:50","slug":"form-721-cryptocurrencies-obligation-and-declaration","status":"publish","type":"page","link":"https:\/\/www.in-diem.com\/en\/form-721-cryptocurrencies-obligation-and-declaration","title":{"rendered":"Form 721 Cryptocurrencies: Obligation and Declaration"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>Form 721 is a mandatory informative declaration for tax residents in Spain who hold cryptocurrencies custodied on foreign platforms. It is not used to declare gains or operations, but rather to inform the Tax Agency of the possession of these crypto assets when certain thresholds are exceeded. Understanding when there is an obligation to submit it and how to do so correctly is key to avoiding penalties and future problems.  <\/p>\n","protected":false},"author":3,"featured_media":11546,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_joinchat":[],"footnotes":""},"class_list":["post-11545","page","type-page","status-publish","has-post-thumbnail","hentry","page_category-crypto-taxation"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Form 721 Cryptocurrencies: Obligation and Declaration<\/title>\n<meta name=\"description\" content=\"Do you own cryptocurrencies outside of Spain? We explain when to submit Form 721 and what information you must report to the Tax Agency.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.in-diem.com\/en\/form-721-cryptocurrencies-obligation-and-declaration\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Form 721 Cryptocurrencies: Obligation and Declaration\" \/>\n<meta property=\"og:description\" content=\"Do you own cryptocurrencies outside of Spain? 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