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How to report a problem with a tool, send a correction together with the source it rests on, or get in touch about anything else on the site.
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Write by email
The quickest way to reach Muhammad Abdullah Awais is by email at [email protected]. Every message is read.
The site has no contact form, no chat and no account to sign in to. Email is the one route for a question, a correction or a suggestion. A subject line that names the tool or page makes the message easy to match to it.
Before you report a figure
A few checks on the page itself can show why your figure and the tool's differ. A report that points at that difference is easier to check against the source.
- Each tool page says which tax year or period its figures belong to, and which nation, region or kind of case they cover. A different year, a different part of the UK or a different type of contract is often why two results differ.
- Results are rounded the way the official method rounds them, at the same step. Rounding at another step of a hand calculation can move a result by a penny.
- Many tool pages list worked cases under Checked against known answers. Comparing your own case with the nearest one shows whether the rule differs or only the input.
- The sources list shows what the figures were checked against, and the page gives the date of that check. If an official source has changed since that date, say which version you are reading.
On a calculator, press Copy link while the result you want to report is still on the screen. The link holds the values behind that result, not the ones you try next. Whatever the checks show, every result is an estimate for information rather than advice, as the disclaimer explains.
Reporting a wrong figure
Confirmed errors are corrected, and the verification date on the page is updated. A good report includes:
- the address of the page
- the figure you believe is wrong, and what you expected instead
- the official source you are relying on, if you have one
- for a calculator, the link its Copy link button gives, which carries the values you entered
With the page address and the values you entered, the same result can be worked out again and compared with the source line by line.
What happens after you write
Every report is read by Muhammad Abdullah Awais, and the figure in question is checked against the official source the tool cites, together with any source the report names. A rate, threshold or date is compared with the text of the law or guidance itself.
When the error is confirmed, the correction is made in the tool's data file. The calculator, the worked examples and the tables on the page are all generated from that file, so they change together. The automated tests then run again before the page is published, and the verification date shown on it is updated.
If the page turns out to be right, the reply names the source that sets the figure, so you can read it for yourself.
Wrong words and unclear sentences
Each language version of the site is written for its own market rather than translated from English. A word can therefore be right in one country and sound odd in another. A wrong word, an unclear sentence or a regional usage can be reported in the same way as a figure.
- the address of the page
- the sentence as it appears, copied from the page
- the wording you would suggest, and where it is used
On the English pages, a note is especially useful when a term differs between England, Scotland, Wales and Northern Ireland, since several tools follow the rules of more than one nation.
Reporting an accessibility problem
The pages are meant to work with a keyboard alone and with screen readers, and to adapt to small screens and larger text. When something on a page does not, a report with a few details makes the problem possible to find and fix.
- the address of the page and the part of it that caused the problem
- the browser and the device, such as a phone, a tablet or a computer
- any assistive technology in use, for example a screen reader, a screen magnifier or a keyboard without a mouse
- what you expected to happen and what happened instead
Text that is hard to read and a focus outline that cannot be seen are worth reporting. So is a control that a screen reader announces wrongly, or a page that cannot be used without a mouse.
Suggesting a new tool
Ideas for new tools are welcome, and the most useful ones start from a real question that people in one country need answered.
- the question the tool should answer, in your own words
- the country or countries it is for
- an official source for the rule or figure behind it, if you know one
A suggestion is read like any other message, but there is no promise that it will be built. Each tool on the site has a page in all seven languages and names the sources behind its figures. An idea that comes with a source is therefore easier to check.
What happens to your email
Writing by email shares your email address and your message with Muhammad Abdullah Awais. Both are used only to reply to you, and they are not added to any list or shared with anyone else.
The site itself collects nothing that identifies you: there are no accounts, no newsletter and no analytics. The privacy policy describes this in full, including the technical data the hosting provider receives with every request.
What cannot be answered
Questions about your own loan, tax position or contract cannot be answered here, because that would be advice. Your lender, a tax adviser or a free consumer advice service can help with those.
Questions about how a tool works, which source it follows or why a result looks unexpected are a different matter, and they are welcome.