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What gets a fast reply

Errors in a calculation. If a number looks wrong, include the page and the inputs you used. Tax figures change annually and mistakes are possible, so these are treated as a priority and corrected quickly.

A calculator that would be useful. Suggestions for tools that would fit the site are genuinely welcome, particularly from people who have hit the problem themselves and know what inputs actually matter.

Something broken. A page that will not load or a field that will not accept input — mention your browser and device if you can.

What this is not

Personal tax advice cannot be given here. Questions about your specific return, your entity structure, or what you personally should claim need a licensed professional who can see your full situation. The calculators are built to help you prepare for that conversation, not to replace it.