Privacy policy

Effective August 6, 2026

Calculator inputs

TaxMathKit calculators run in your browser. We do not ask you to create an account, and we do not collect or store the amounts you enter into a calculator.

Privacy-preserving analytics

We record the page visited, referring website, anonymous daily visitor identifier, whether a calculator control was used, and recognized search or AI crawler requests. The daily identifier is created from limited request data with a private salt and is not used to follow a visitor across days. Test browsers can be marked as internal and reported separately. We honor browser Do Not Track and do not use advertising cookies.

Basic service data

Our hosting provider may process technical request data such as IP address, user agent, timestamps and security events to deliver and protect the site.

External links

Links to government and other external sites are governed by those sites’ privacy practices. We do not control them.

Contact

Questions may be sent to hello@taxmathkit.com.