{"id":351908,"date":"2026-08-18T23:33:17","date_gmt":"2026-08-18T23:33:17","guid":{"rendered":"https:\/\/wordpress.org\/plugins\/clara-cars-isv-iuc-calculator\/"},"modified":"2026-08-18T23:32:57","modified_gmt":"2026-08-18T23:32:57","slug":"clara-cars-isv-iuc-calculator","status":"publish","type":"plugin","link":"https:\/\/wordpress.org\/plugins\/clara-cars-isv-iuc-calculator\/","author":23543160,"comment_status":"closed","ping_status":"closed","template":"","meta":{"version":"1.0.0","stable_tag":"1.0.0","tested":"7.0.4","requires":"6.0","requires_php":"7.4","requires_plugins":null,"header_name":"Clara Cars ISV & IUC Calculator","header_author":"Clara Cars","header_description":"Embed a free Portuguese car-tax calculator \u2014 ISV (import tax) + IUC (annual road tax) \u2014 via the [claracars_isv] shortcode or a block. 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Visitors enter engine size, CO\u2082, fuel and registration year and get an instant estimate of:<\/p>\n\n<ul>\n<li><strong>ISV<\/strong> \u2014 Imposto Sobre Ve\u00edculos (one-off import\/registration tax)<\/li>\n<li><strong>IUC<\/strong> \u2014 Imposto \u00danico de Circula\u00e7\u00e3o (annual road tax)<\/li>\n<\/ul>\n\n<p>The figures are a <strong>maintained estimate<\/strong>, cross-checked against the official Autoridade Tribut\u00e1ria (AT) tables \u2014 not the official AT figure and no substitute for the AT simulator or a despachante. The calculation is open source (MIT): https:\/\/github.com\/claracarspt\/calcs<\/p>\n\n<p>Available in Portuguese, English, Russian and Ukrainian.<\/p>\n\n<h4>How to use<\/h4>\n\n<ul>\n<li><strong>Shortcode:<\/strong> <code>[claracars_isv]<\/code> \u2014 optional attributes <code>lang<\/code> (pt|en|ru|ua), <code>height<\/code>, <code>width<\/code>. Example: <code>[claracars_isv lang=\"en\" height=\"400\"]<\/code><\/li>\n<li><strong>Block:<\/strong> add the \"Clara Cars ISV &amp; IUC Calculator\" block and pick the language in the sidebar.<\/li>\n<\/ul>\n\n<h4>Privacy<\/h4>\n\n<p>The calculator is loaded in an iframe from claracars.pt. No personal data is collected by the calculator \u2014 visitors enter only vehicle parameters and get back numbers. See https:\/\/claracars.pt\/en\/privacy<\/p>\n\n<h3>External services<\/h3>\n\n<p>This plugin embeds a calculator widget served from <strong>claracars.pt<\/strong> (operated by Clara Cars). It relies on that external service to function.<\/p>\n\n<ul>\n<li><strong>What it does:<\/strong> the plugin outputs an <code>&lt;iframe&gt;<\/code> that loads <code>https:\/\/claracars.pt\/embed-isv<\/code>. Inside that widget, the vehicle parameters a visitor enters \u2014 engine size (cc), CO\u2082, fuel, registration year and condition (used\/new) \u2014 are sent to the Clara Cars public API (<code>https:\/\/claracars.pt\/api\/public\/isv<\/code>) to compute the tax estimate.<\/li>\n<li><strong>What is sent:<\/strong> only the vehicle parameters listed above. <strong>No personal data<\/strong> is collected or transmitted by the calculator.<\/li>\n<li><strong>When:<\/strong> when a visitor views the page containing the calculator and when they press \"Calculate\".<\/li>\n<li><strong>Provider:<\/strong> Clara Cars \u2014 https:\/\/claracars.pt<\/li>\n<li><strong>Terms of service:<\/strong> https:\/\/claracars.pt\/en\/terms<\/li>\n<li><strong>Privacy policy:<\/strong> https:\/\/claracars.pt\/en\/privacy<\/li>\n<\/ul>\n\n<p>The calculation code is open source (MIT) and can be self-hosted instead: https:\/\/github.com\/claracarspt\/calcs<\/p>\n\n<!--section=installation-->\n<ol>\n<li>Upload the plugin to <code>\/wp-content\/plugins\/<\/code> (or install from the Plugins screen).<\/li>\n<li>Activate it.<\/li>\n<li>Add <code>[claracars_isv]<\/code> to any page\/post, or insert the \"Clara Cars ISV &amp; IUC Calculator\" block.<\/li>\n<\/ol>\n\n<!--section=faq-->\n<dl>\n<dt id=\"is%20it%20free%3F\"><h3>Is it free?<\/h3><\/dt>\n<dd><p>Yes. No account, no API key.<\/p><\/dd>\n<dt id=\"are%20the%20numbers%20official%3F\"><h3>Are the numbers official?<\/h3><\/dt>\n<dd><p>No \u2014 they are a maintained estimate cross-checked against the official AT tables. Always confirm with the official AT simulator before relying on a figure.<\/p><\/dd>\n<dt id=\"can%20i%20self-host%20the%20calculator%3F\"><h3>Can I self-host the calculator?<\/h3><\/dt>\n<dd><p>Yes. The calculator and its API are open source: https:\/\/github.com\/claracarspt\/calcs<\/p><\/dd>\n\n<\/dl>\n\n<!--section=changelog-->\n<h4>1.0.0<\/h4>\n\n<ul>\n<li>Initial release: <code>[claracars_isv]<\/code> shortcode + block, 4 languages.<\/li>\n<\/ul>","raw_excerpt":"Free Portuguese car-tax calculator \u2014 estimate ISV (import tax) and IUC (annual road tax). 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