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Good reasons to write

• A result looks wrong. Please include the numbers you entered, or the page address if it contains them, and the figure you expected, so the problem can be reproduced.
• Something is unclear or broken. Say which page, and which browser or device you were using.
• You have an idea for a calculator. Suggestions for new tools or improvements are welcome.

What we cannot help with

The site cannot give personal financial, tax or investment advice, and cannot tell you what to do with your money. For that, speak with a qualified professional who knows your situation.

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