Last updated: September 2026
Officina Systems ("we," "our," or "us") operates the Home Office Deduction Calculator at homeofficecalc.officinasystems.com. This Privacy Policy explains how we handle information when you use this tool.
We do not collect, store, or transmit any of the financial or tax data you enter into the calculator. All calculations are performed entirely in your browser. No expense amounts, square footage, or any other input is sent to our servers.
We do not collect personal information directly. However, third-party services used on this site may collect information as described below.
We use Google AdSense to display advertisements. Google AdSense may use cookies and web beacons to serve ads based on your prior visits to this website and other sites. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to our site and/or other sites on the Internet.
You may opt out of personalized advertising by visiting Google Ads Settings. Alternatively, you can opt out of a third-party vendor's use of cookies for personalized advertising by visiting aboutads.info.
We may use standard web analytics tools to understand how visitors use this site. Analytics data is aggregated and does not personally identify individual users.
The Home Office Deduction Calculator is a fully client-side application. All tax calculations are performed locally in your browser — none of the data you enter (square footage, expenses, or any other inputs) is transmitted to our servers or stored anywhere.
This site may contain links to the IRS website and other external resources. We are not responsible for the privacy practices of those sites and encourage you to review their privacy policies.
Our site is not directed at children under 13. We do not knowingly collect personal information from children.
We may update this Privacy Policy from time to time. Updates will be reflected by the "Last updated" date above.
If you have questions about this Privacy Policy, contact us at hello@officinasystems.com or visit our Contact page.