Contact

The fastest way to reach us is email. We read everything — bug reports and calculation corrections get priority.

What to include

• Calculation errors:the tool's URL, the inputs you entered, the result you got, and the result you expected (with a source if you have one).
• Tool suggestions: what decision you were trying to make when you wished the tool existed.
• Everything else:just write — there's a person on the other end, not a ticket system.

We typically reply within a few days. We can't provide personalised financial or tax advice — for that, please consult a qualified professional.