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Spotted an error, found a bug, or have an idea for a new calculator? Get in touch by email, whichever of these best describes it:
Report a calculation issue
Found a result that looks wrong? Tell us the calculator, the exact inputs you used, and what you expected instead, so it can be checked against the published rates it's built on.
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Something broken, a page that won't load, or a layout problem on your device? Let us know what you were doing, and which browser and device you were using.
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Want another UK calculator, a missing feature, or a clearer explanation somewhere? Suggestions are genuinely read, even if not every one makes it in.
This isn’t a support line for personal tax or financial questions, and replies aren’t guaranteed. Every calculator on this site provides estimates only and is not a substitute for advice from HMRC, a regulated financial adviser, or your employer’s payroll team, see the disclaimer for more detail.