Embed terms
Short version: use them freely, keep the credit link, and don't present the results as professional advice.
What you may do
Embed any calculator listed on the embed page on any website, including a commercial one, at no cost and without asking permission. You may embed as many as you like, on as many pages as you like. You may set the width, height and border to suit your layout.
What we ask
Keep the credit link that comes with the snippet, visible and followable, on the same page as the calculator. That link is the only thing we get in return, and it's what makes the calculators free.
Please don't imply that gazza.ltd endorses you, your firm or your services, and don't present the calculator as your own product.
Accuracy, and what you're responsible for
We take the figures seriously. Tax bands, thresholds and reliefs come from HMRC, Revenue Scotland and the Welsh Revenue Authority, each calculator's maths is tested against worked examples published by those bodies, and the verification date — currently 4 August 2026 — is shown inside the calculator so your visitors can judge it for themselves.
That said, the calculators are provided as-is, without warranty. They are general information, not financial, legal, tax or professional advice. If you are regulated — a mortgage broker, a solicitor, an accountant — you remain responsible for what appears on your own website and for any advice you give based on it. Check anything that matters against the official source.
We aren't liable for losses arising from use of the calculators, whether on this site or embedded on yours.
Updates and availability
The calculators are served from gazza.ltd, so we can and do update them — when rates change, your embed changes with them, usually within minutes and with nothing required from you. The flip side is that if this site is down, the calculator on your page won't load. We don't offer an uptime guarantee.
We may change or retire a calculator. If we ever retire one that's in active use we'll leave the URL working and tell anyone who has been in touch, but we can't promise a URL will exist forever.
Privacy
The embedded calculators run entirely in the visitor's browser. Nothing anyone types is transmitted to us or stored. We set no cookies in the embed and there are no adverts or tracking scripts inside it, so embedding a calculator shouldn't require any change to your cookie banner or privacy policy. Our own site'sprivacy policy covers gazza.ltd itself.
Getting in touch
Questions, problems, or a calculator you'd like that we don't have:hello@gazza.ltd. If you tell us where you've embedded one, we'll let you know before anything changes that would affect you.