Ready to safely calculate your ACB?

BASIS runs entirely on your device. No files are uploaded, and nothing is saved by the app after this session ends. Before continuing, confirm that you're using a private browsing setup for this session.

I'm using a new Private or Incognito window

This helps keep this session out of your normal browsing history and makes it easier to clear temporary session data when you close the window.

I disabled all 3rd-party browser extensions for this window

Extensions are the main privacy risk in a browser-based tool like this, because they may be able to read page content or form input.

I won't use browser or password-manager autofill in this session

This helps prevent sensitive financial values from being suggested, saved, or filled into the wrong fields.

I'll close this private window when I'm done

That helps ensure this session is cleared as soon as you finish reviewing and exporting your data.