Privacy

The numbers you type stay on your device. All calculations run in your browser. We don’t upload, store or log any amount, income figure, filing detail or occupation you enter.

Analytics

We may use Google Analytics 4 and Amplitude to count page views and how the tools are used (for example, “a calculator was used, filing status: single, result: positive”). These events contain categories only, never amounts. Amplitude is set not to record IP addresses; Google Analytics may use cookies.

Advertising

We may show Google AdSense ads. Google and its partners may use cookies to show ads based on your visits to this and other sites. You can opt out of personalized advertising at Google Ads Settings.

Your choices

If your browser is set to a time zone in the European Economic Area, the UK or Switzerland, nothing is loaded until you choose Accept, and ads are not shown. Everywhere else, analytics and ads load by default and you can turn them off with Privacy choices in the footer. We treat a Global Privacy Control signal as an opt-out. Your choice is saved in your browser’s local storage.

Links

We link to IRS.gov and Google Play. Those sites have their own privacy policies.

Contact

Questions about this policy: see the contact details on the main WattFlow site.