Terms of use

Plain terms for a free reference site: use it freely, do not abuse it, and do not treat the output as professional advice.

Last reviewed: 2026-08-01

Agreement

By using ayduke.com you accept these terms. If you do not accept them, please do not use the site. We may update the terms; the date above shows the current version.

Permitted use

You may use the tools for personal and commercial purposes, including quoting a result to a client or colleague, at no cost and without attribution. You may not:

  • scrape, mirror or bulk-download the site, or run automated requests beyond ordinary interactive use (the calculation API is rate limited);
  • attempt to interfere with the service, probe it for vulnerabilities without permission, or use it to attack third parties;
  • use the network tools (DNS and HTTP header checks) against systems you do not own or have permission to test;
  • republish substantial parts of our written content as your own.

No professional advice

Ayduke provides calculation and reference tools. Nothing on the site is financial, tax, legal, medical or other professional advice, and no relationship of adviser and client is created by using it. See our disclaimer for detail.

Accuracy and availability

We take accuracy seriously and document our sources, but the tools are provided "as is" and "as available". We do not warrant that a result is free of error, that a rate is current at the moment you read it, or that the site will be uninterrupted.

Intellectual property

The Ayduke name, design, written content and code are owned by us or our licensors. Results you generate are yours to use. Formulas, statutory rates and public-domain reference data are not claimed as our property.

Third-party links and advertising

We link to official sources and show advertising supplied by Google. We do not control third-party content and are not responsible for it. Advertising is labelled and separated from calculator results.

Limitation of liability

To the extent permitted by law, we are not liable for loss arising from reliance on a result, for indirect or consequential loss, or for loss of profit, revenue or data. Nothing in these terms limits liability that cannot lawfully be limited, including for death or personal injury caused by negligence, or for fraud.

Governing law

These terms are governed by the law of England and Wales, and the courts of England and Wales have exclusive jurisdiction, except where consumer protection rules in your country of residence give you the right to bring proceedings locally.