Privacy
Short version: your numbers are your business. We don't want them, we don't store them, and we have no way to look at them.
No accounts. Nothing to sign up for, no email box to fill in, no password to forget.
Nothing leaves your browser. The math runs locally in JavaScript on your own device. There's no server on our end taking your income, your IRA balance, or your filing status. It physically can't be sent because nothing is listening.
Light analytics. We may use a privacy-friendly counter to see which calculators get the most use. No ad networks, no retargeting pixels, no shadow profile of you.
We don't sell anything about you. Not to advertisers, not to financial advisors, not to anyone. There's no list, because there's no data.