Embed our calculators

Last updated 15 June 2026

Put any of these free UK tax calculators on your own website, blog or client portal with one line of HTML. Each widget runs entirely in your visitor's browser, uses the official gov.uk rates for 2026/27, and shows its working. They're free to use — the only condition is that the small “Powered by UK Tax Utility” credit below the calculator stays visible.

Who these are for

Accountants and bookkeepers use them to add a live “what will I owe?” tool to a services or resources page; property and mortgage sites embed the stamp duty calculator; finance and side-hustle bloggers drop the sole trader or income tax calculator straight into an article instead of building one. No signup, no API key, no tracking of your visitors.

How to embed a calculator

Pick a calculator below and copy the auto-resizing snippet (recommended).
Paste it into your page's HTML where you want the calculator to appear.
That's it — the widget resizes itself to fit, on desktop and mobile.

Using WordPress? Paste the snippet into a Custom HTML block (not a paragraph block). If your theme strips <script> tags, use the basic fixed-height snippet instead.

Sole Trader Tax Calculator

<iframe src="https://uktaxutility.co.uk/embed/sole-trader/" title="Sole Trader Tax Calculator — UK Tax Utility" id="utu-sole-trader" width="100%" height="640" scrolling="no" style="border:1px solid #d7e0ea;border-radius:10px;max-width:640px" loading="lazy"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;margin:8px 0">Powered by <a href="https://uktaxutility.co.uk/sole-trader-tax-calculator-uk/">UK Tax Utility</a></p>
<script>
window.addEventListener("message",function(e){if(e.origin==="https://uktaxutility.co.uk"&&e.data&&e.data.type==="uktaxutility:resize"){var f=document.getElementById("utu-sole-trader");if(f)f.style.height=e.data.height+"px";}});
</script>

Basic fixed-height snippet (no script)

<iframe src="https://uktaxutility.co.uk/embed/sole-trader/" title="Sole Trader Tax Calculator — UK Tax Utility" width="100%" height="640" style="border:1px solid #d7e0ea;border-radius:10px;max-width:640px" loading="lazy"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;margin:8px 0">Powered by <a href="https://uktaxutility.co.uk/sole-trader-tax-calculator-uk/">UK Tax Utility</a></p>

Income Tax & PAYE Calculator

<iframe src="https://uktaxutility.co.uk/embed/income-tax/" title="Income Tax & PAYE Calculator — UK Tax Utility" id="utu-income-tax" width="100%" height="640" scrolling="no" style="border:1px solid #d7e0ea;border-radius:10px;max-width:640px" loading="lazy"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;margin:8px 0">Powered by <a href="https://uktaxutility.co.uk/income-tax-calculator-uk/">UK Tax Utility</a></p>
<script>
window.addEventListener("message",function(e){if(e.origin==="https://uktaxutility.co.uk"&&e.data&&e.data.type==="uktaxutility:resize"){var f=document.getElementById("utu-income-tax");if(f)f.style.height=e.data.height+"px";}});
</script>

Basic fixed-height snippet (no script)

<iframe src="https://uktaxutility.co.uk/embed/income-tax/" title="Income Tax & PAYE Calculator — UK Tax Utility" width="100%" height="640" style="border:1px solid #d7e0ea;border-radius:10px;max-width:640px" loading="lazy"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;margin:8px 0">Powered by <a href="https://uktaxutility.co.uk/income-tax-calculator-uk/">UK Tax Utility</a></p>

Dividend Tax Calculator

<iframe src="https://uktaxutility.co.uk/embed/dividend/" title="Dividend Tax Calculator — UK Tax Utility" id="utu-dividend" width="100%" height="640" scrolling="no" style="border:1px solid #d7e0ea;border-radius:10px;max-width:640px" loading="lazy"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;margin:8px 0">Powered by <a href="https://uktaxutility.co.uk/dividend-tax-calculator-uk/">UK Tax Utility</a></p>
<script>
window.addEventListener("message",function(e){if(e.origin==="https://uktaxutility.co.uk"&&e.data&&e.data.type==="uktaxutility:resize"){var f=document.getElementById("utu-dividend");if(f)f.style.height=e.data.height+"px";}});
</script>

Basic fixed-height snippet (no script)

<iframe src="https://uktaxutility.co.uk/embed/dividend/" title="Dividend Tax Calculator — UK Tax Utility" width="100%" height="640" style="border:1px solid #d7e0ea;border-radius:10px;max-width:640px" loading="lazy"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;margin:8px 0">Powered by <a href="https://uktaxutility.co.uk/dividend-tax-calculator-uk/">UK Tax Utility</a></p>

Stamp Duty (SDLT) Calculator

<iframe src="https://uktaxutility.co.uk/embed/stamp-duty/" title="Stamp Duty (SDLT) Calculator — UK Tax Utility" id="utu-stamp-duty" width="100%" height="640" scrolling="no" style="border:1px solid #d7e0ea;border-radius:10px;max-width:640px" loading="lazy"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;margin:8px 0">Powered by <a href="https://uktaxutility.co.uk/stamp-duty-calculator-uk/">UK Tax Utility</a></p>
<script>
window.addEventListener("message",function(e){if(e.origin==="https://uktaxutility.co.uk"&&e.data&&e.data.type==="uktaxutility:resize"){var f=document.getElementById("utu-stamp-duty");if(f)f.style.height=e.data.height+"px";}});
</script>

Basic fixed-height snippet (no script)

<iframe src="https://uktaxutility.co.uk/embed/stamp-duty/" title="Stamp Duty (SDLT) Calculator — UK Tax Utility" width="100%" height="640" style="border:1px solid #d7e0ea;border-radius:10px;max-width:640px" loading="lazy"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;margin:8px 0">Powered by <a href="https://uktaxutility.co.uk/stamp-duty-calculator-uk/">UK Tax Utility</a></p>

VAT Calculator

<iframe src="https://uktaxutility.co.uk/embed/vat/" title="VAT Calculator — UK Tax Utility" id="utu-vat" width="100%" height="640" scrolling="no" style="border:1px solid #d7e0ea;border-radius:10px;max-width:640px" loading="lazy"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;margin:8px 0">Powered by <a href="https://uktaxutility.co.uk/vat-calculator-uk/">UK Tax Utility</a></p>
<script>
window.addEventListener("message",function(e){if(e.origin==="https://uktaxutility.co.uk"&&e.data&&e.data.type==="uktaxutility:resize"){var f=document.getElementById("utu-vat");if(f)f.style.height=e.data.height+"px";}});
</script>

Basic fixed-height snippet (no script)

<iframe src="https://uktaxutility.co.uk/embed/vat/" title="VAT Calculator — UK Tax Utility" width="100%" height="640" style="border:1px solid #d7e0ea;border-radius:10px;max-width:640px" loading="lazy"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;margin:8px 0">Powered by <a href="https://uktaxutility.co.uk/vat-calculator-uk/">UK Tax Utility</a></p>

Licence & terms

Free for personal, commercial and editorial use — no fee, no signup, no account.
Keep the attribution. The visible “Powered by UK Tax Utility” link must stay in place and remain a working, followable link to uktaxutility.co.uk.
Don't alter the calculations. Please don't modify the iframe contents or misrepresent the figures as your own.
Estimates, not advice. The tools are for information; they aren't regulated tax advice, and the same disclaimer that applies on our site applies to the embed.

Want a calculator that isn't listed here, or a custom theme to match your brand? Get in touch — most of our tools can be made embeddable on request.