Contact

The fastest way to improve CalcToolVault is to tell us what is wrong with it. Use the form below and we will read every message.

Report a calculation error

Tell us the calculator, the inputs you used, the result you got, and the result you expected. Formula corrections are prioritised above everything else.

Suggest a calculator

If there is a calculation you keep doing by hand or in a spreadsheet, describe it. The most-requested tools get built first.

Out-of-date figures

Tax brackets, contribution limits, and wage bases change every year. If you spot a stale number, let us know which one and where.

Advertising and partnerships

For advertising enquiries, include your company and the placement you have in mind.

Send a message

Nothing is required except the message itself — no name, no email address.

What we cannot do

We cannot give financial, tax, legal, or medical advice, review your personal situation, or tell you what decision to make. The calculators show the math; the judgement is yours, and for anything consequential it is worth paying a qualified professional for.