Add free, always-current UK tax calculators to your WordPress site or any website in minutes. No coding, no maintenance, no cost — just a shortcode.
Add or remove UK VAT at 20%, 5% or 0% instantly. One of PayToolkit's most-used tools, embedded live on your page.
Visitors can look up their council tax band and estimated annual charge for their area.
Instant UK salary breakdown: Income Tax, National Insurance and take-home pay for 2026/27.
Calculators embed live from PayToolkit, so HMRC rate changes each tax year update automatically — nothing for you to patch or re-upload.
Tools load in a lazy iframe, so they don't slow down your page's initial load or hurt your Core Web Vitals.
Give visitors a reason to stay longer on your finance, accounting or business advice content with real, working tools.
Download paytoolkit-free-tools.zip using the button above.
Go to Plugins → Add New → Upload Plugin, choose the zip file, then click Install Now.
Click Activate Plugin once the install finishes.
Paste one of the following into the block/classic editor:
Use the free HTML embed code instead — it works on Wix, Squarespace, Shopify, or any custom-built site. Just download the snippet file above and paste the relevant block into your page's HTML/embed editor.
Yes, completely free with no signup, subscription or usage limit. It embeds live PayToolkit calculators via a shortcode.
No. Any WordPress site owner, blogger, freelancer or business can install and use the plugin free of charge.
No. The calculators load inside a lazy-loaded iframe, so they only load when a visitor scrolls to them and don't add weight to your page's initial load.
Yes. A plain HTML embed code is also available for Wix, Squarespace, Shopify, or any custom-built website — download it above.
Yes. Because the plugin embeds the live PayToolkit calculators rather than a static copy, rate changes each UK tax year are applied automatically with no update needed on your side.
Free forever. No account, no API key, no credit card.