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Report a problem, suggest an improvement, or request a calculator.

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What we do not provide

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Spotted an issue, have an improvement idea, or need a calculator we do not have? Tell us what would be useful.

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When you choose “Send feedback”, GlobalCalc stores your feedback type, the page path shown above, your message, an optional reply email and the submission time in Cloudflare for up to 90 days. We do not attach calculator figures, results, query strings, a postcode or an analytics identifier. See our privacy policy.

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Bug reports

Please include the calculator name and URL, sample figures that reproduce the issue, the result you got, and the result you expected. Do not send real personal, financial, or health information. A screenshot using sample data is always helpful.

Calculator requests

Tell us what the calculator should do, which country or region it applies to, and any official sources we should reference.

Data corrections

If you believe a rate or threshold is out of date, please include a link to the official source showing the correct figure.

General enquiries

Partnerships, media, and other general enquiries can go to the same email address.

What we do not provide

We are not financial advisers and cannot provide personalised financial, tax, or legal advice. For advice about your situation, please consult a qualified professional such as a financial adviser, accountant, or solicitor.