The short version: your numbers never leave your browser. The longer version, including what the ads and analytics do, is below.
What happens to the estate value you type in
Nothing leaves your device. Every calculator on this site runs entirely in JavaScript in your browser. The gross estate figure, the state you select, the cost basis you enter into the step-up tool: none of it is transmitted to a server, logged, or stored anywhere. Close the tab and it's gone.
Analytics
Google Analytics records aggregate traffic, like which pages get visited and roughly how long people stay. This tells us which guides need updating, not who visited or what they calculated. You can block this with a browser extension or by rejecting the cookie banner.
Advertising
Ads are served through Google AdSense, which may use cookies to personalize what you see. Google's own policies govern how that data is used; you can manage ad personalization through Google's ad settings.
Affiliate links
A few links to other financial tools in the footer are affiliate links. If you click through and use that tool, this site may earn a small commission. It doesn't change the price you pay or which figures we report here.
Contact forms
The contact form sends your name, email and message to a form-processing service so we can reply. That information isn't used for anything beyond answering you.
Last updated June 2026. Questions about any of this go through the contact page.
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