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Found a bug, have a tool request, or want to talk about advertising? Send us a message and we'll get back to you.
Reporting a tool problem
For a bug report, include the tool name, what you expected, what happened instead, your browser/device, and a sample input that does not contain private information. Clear reproduction steps help us test and fix problems faster.
For calculator feedback, mention the country, tax year or rule you believe needs review and include an official source when possible. For privacy reasons, do not send passwords, identity documents, private files or sensitive financial records.