Trust

Privacy policy

Last updated: September 28, 2026.

What this site is

StateTaxAdd is maintained by Ultra Edge Labs. Calculations run in your browser. Current inputs are stored after the # in the page address so reloading restores them; that URL fragment is not included in the HTTP request to our host. A link you copy or share can contain those inputs, so use illustrative amounts. Older links with inputs before the # send those query parameters to the host when opened; the calculator converts them to a fragment after loading.

Hosting and logs

The site is hosted on Cloudflare Pages. Cloudflare processes request information, including IP address, user agent, requested URL and approximate location, to deliver and protect the site and provide traffic statistics. See Cloudflare’s privacy policy.

Cookies and advertising

Advertising is not currently enabled. Before enabling Google advertising, we will update this policy with the data collection and sharing involved and provide the disclosures and consent choices required for the relevant regions. Google advertising may use cookies, web beacons, IP addresses or other identifiers. See how Google uses information from partner sites and Google’s ad choices.

The marked advertisement spaces are currently empty; no AdSense script is loaded.

Analytics

No separate browser analytics script is currently installed. Cloudflare’s network traffic statistics can include automated requests and do not identify a count of unique people. This policy will be updated before introducing additional analytics.

Children

The site is not directed at children under 13. We do not knowingly collect personal information from children.

Contact

Privacy questions: email [email protected]. If you email us, your message and address are used to respond to your request. Do not include sensitive financial or identity information.