Email us
We read every message and fix confirmed errors as quickly as we can.
Reporting a calculator error
If a result looks wrong, please tell us:
- which calculator you used, and the page address if you can
- the numbers you entered
- the result you got, and the result you expected, with a link to the official source if you have one
Accurate figures matter to us, and reports like this are the fastest way to catch a mistake.
Suggesting a new tool or topic
If there is a UK tax calculation you would like us to build, or a topic you would like covered on the blog, send us a short description.
What we can't help with
We can't give personal tax advice or look at your individual tax position. For that, speak to a qualified accountant or tax adviser, or use HMRC's contact options.
Please don't include sensitive details in your email, such as your National Insurance number, UTR or bank details.