Add a free GST/HST calculator to your website
One line of HTML. No signup, no API key, no cost. A useful tool for your visitors — and it stays current automatically if a province's tax rate ever changes.
1. Copy this snippet
Paste it anywhere in your page's HTML — a blog post, a resource page, a footer.
HTML
<iframe
src="https://invoiceflowca.com/embed/tax-calculator"
width="100%"
height="480"
style="border:0;max-width:420px"
loading="lazy"
title="GST/HST Calculator by InvoiceFlowCA"
></iframe>2. That's it
No account, API key, or JavaScript SDK required. Every embed includes a small "Powered by InvoiceFlowCA" credit link — that's the only thing we ask in return for keeping it free.
Live preview
Exactly what your visitors will see.