Privacy policy

What the calculators do with your numbers

Nothing you type into a calculator leaves your device. The arithmetic runs entirely in your browser. There is no account, no form submission, and no server that receives your income, tips, hours or filing status. We could not retrieve those figures if we wanted to.

Cookies and third-party advertising

This site uses third-party advertising to stay free. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this and other websites.

Google’s use of advertising cookies enables it and its partners to serve ads to you based on your visit to this and other sites. You can opt out of personalised advertising through Google Ads Settings, or opt out of third-party vendor cookies at aboutads.info.

Third-party vendors and ad networks not controlled by us may also place cookies. Their use of that data is governed by their own privacy policies, not this one.

Analytics

Aggregate traffic data — pages visited, approximate region, referring site, device type — may be collected to understand which pages are useful. It is not linked to any individual and never includes anything you typed into a calculator.

Children

This site is aimed at working adults dealing with their own tax return and is not directed at children under 13.

Changes

If this policy changes materially, the revised version will be posted here with an updated date.

Last updated 24 August 2026.