Privacy
A simple site without advertising or visitor profiles.
The site does not use contact forms or advertising pixels. It uses Cloudflare Web Analytics to understand aggregate page views and site performance. Its hosting service may use strictly necessary security cookies to protect the site from abuse.
What the site does not collect
The site does not ask for your name, address, or contact details while you browse, and it does not create a visitor account or profile.
Calculator inputs
Calculations run in your browser. The site does not send the numbers you enter to a server or analytics service, and it does not save them automatically. Use “Clear inputs” to remove the current values.
Accounting Lab inputs
The browser lab runs in an isolated frame. Transaction values are not sent to a server or site analytics, and clear when you refresh or leave the page. Use “Start again” to clear the current transaction.
Optional ChatGPT plugin
If you use the companion plugin, the inputs you choose to submit are sent to the site server to calculate a response. Its accounting code does not save transaction inputs or send them to analytics. ChatGPT and the hosting service process requests under their own privacy policies. Avoid unnecessary personal identifiers or confidential records.
Site analytics
Cloudflare states that its Web Analytics service does not collect or use visitors’ personal data.
Contact
If you choose to message me through LinkedIn, that platform’s terms and privacy policy apply to the conversation. Messages are not sent through this website.
Last updated: October 22, 2026.