We read every message that comes in through this form. Here's what we can genuinely help with, and what we can't.

We can help with: a figure or calculation that looks wrong, a broken link or display issue, a suggestion for a new calculator or feature, or a general question about how a tool works.

We can't provide: personal financial, tax, or legal advice about your specific situation. Our calculators are built to be accurate and clearly explained, but they're general-purpose tools, not a substitute for a qualified adviser who knows your full circumstances. If you're facing a decision with real money on the line, please speak to a professional, such as an FCA-regulated financial adviser or an accountant.

If you think a calculation is incorrect, the fastest way to get it looked at properly is to tell us exactly what you entered and what result you got, ideally with the figure you were expecting and why. We independently verify every rate and threshold against primary sources, and genuinely want to know if something's slipped through, our verification methodology explains how we check figures and how corrections are handled once something is confirmed.