Embed the Advance Tax Calculator on your site
Add the Advance Tax Calculator to any page. Copy the code below — it auto-resizes and follows your site theme.
<div class="calcro-widget" data-tool="advance-tax" data-locale="en" data-theme="auto">
<a href="https://calcula.live/en/advance-tax">Advance Tax Calculator — calcula·live</a>
</div>
<script async src="https://calcula.live/widget.js"></script>iAbout this calculator
Estimate an advance (on-account) tax payment from your period profit and rate. UK Corporation Tax is 25% — 19% below the small-profits threshold; Self Assessment payments on account are made toward your bill.
?Frequently asked questions
Is it free?
Yes. No account and no impression limit.
Can I embed the Advance Tax Calculator on WordPress or another CMS?
Yes. It works anywhere you can paste HTML — WordPress, Wix, Webflow or plain HTML.
Will it slow my site down?
No. The widget lazy-loads inside an isolated iframe and only runs when it becomes visible.
Is it mobile-friendly?
Yes. It fills the container width: side-by-side on wide screens, stacked on mobile.