Description
Add a free Portuguese vehicle-tax calculator to any page or post. Visitors enter engine size, CO₂, fuel and registration year and get an instant estimate of:
- ISV — Imposto Sobre Veículos (one-off import/registration tax)
- IUC — Imposto Único de Circulação (annual road tax)
The figures are a maintained estimate, cross-checked against the official Autoridade Tributária (AT) tables — 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
Available in Portuguese, English, Russian and Ukrainian.
How to use
- Shortcode:
[claracars_isv]— optional attributeslang(pt|en|ru|ua),height,width. Example:[claracars_isv lang="en" height="400"] - Block: add the “Clara Cars ISV & IUC Calculator” block and pick the language in the sidebar.
Privacy
The calculator is loaded in an iframe from claracars.pt. No personal data is collected by the calculator — visitors enter only vehicle parameters and get back numbers. See https://claracars.pt/en/privacy
External services
This plugin embeds a calculator widget served from claracars.pt (operated by Clara Cars). It relies on that external service to function.
- What it does: the plugin outputs an
<iframe>that loadshttps://claracars.pt/embed-isv. Inside that widget, the vehicle parameters a visitor enters — engine size (cc), CO₂, fuel, registration year and condition (used/new) — are sent to the Clara Cars public API (https://claracars.pt/api/public/isv) to compute the tax estimate. - What is sent: only the vehicle parameters listed above. No personal data is collected or transmitted by the calculator.
- When: when a visitor views the page containing the calculator and when they press “Calculate”.
- Provider: Clara Cars — https://claracars.pt
- Terms of service: https://claracars.pt/en/terms
- Privacy policy: https://claracars.pt/en/privacy
The calculation code is open source (MIT) and can be self-hosted instead: https://github.com/claracarspt/calcs
Blocks
This plugin provides 1 block.
- Clara Cars ISV & IUC Calculator Free Portuguese car-tax calculator — ISV (import tax) + IUC (annual road tax). Maintained estimate, open source.
Installation
- Upload the plugin to
/wp-content/plugins/(or install from the Plugins screen). - Activate it.
- Add
[claracars_isv]to any page/post, or insert the “Clara Cars ISV & IUC Calculator” block.
FAQ
-
Is it free?
-
Yes. No account, no API key.
-
Are the numbers official?
-
No — they are a maintained estimate cross-checked against the official AT tables. Always confirm with the official AT simulator before relying on a figure.
-
Can I self-host the calculator?
-
Yes. The calculator and its API are open source: https://github.com/claracarspt/calcs
Reviews
There are no reviews for this plugin.
Contributors & Developers
“Clara Cars ISV & IUC Calculator” is open source software. The following people have contributed to this plugin.
Contributors
Translate “Clara Cars ISV & IUC Calculator” into your language.
Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
1.0.0
- Initial release:
[claracars_isv]shortcode + block, 4 languages.