This page explains how BillableMath ("we", "us") handles information when you use BillableMath (the "Site"). Effective date: June 18, 2026.
Every calculator on this Site runs entirely in your browser using JavaScript. The numbers you type — your income, rate, hours, expenses — are never transmitted to us or stored on any server. They exist only in your browser tab and disappear when you close it.
Like most websites, our hosting provider and analytics may log standard technical data such as your IP address, browser type, referring page, and pages visited. This is used to keep the Site secure and understand which tools are useful. We do not use it to identify you personally.
We may display ads served by third-party networks such as Google AdSense. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to this Site and/or other sites. You can opt out of personalized advertising by visiting Google's Ads Settings (https://www.google.com/settings/ads) or the consumer choice tools at aboutads.info.
Some outbound links are affiliate links. If you click one and make a purchase, the merchant may set its own cookies and we may earn a commission at no extra cost to you. See our affiliate disclosure for details.
Depending on where you live, you may have rights to access, correct, or delete personal data, or to opt out of certain processing. Because the calculators store nothing, most requests will concern advertising cookies, which you can manage through your browser settings or the opt-out links above. To make a request, contact us at hello@billablemath.com.
We may update this policy; the effective date above will change accordingly.