Privacy Policy

Last updated: May 18, 2026

1. Overview

NumBoxHub ("we," "our," or "us") operates a collection of free online financial calculators at https://numboxhub.com. This Privacy Policy explains how we handle information when you use our services. All calculations run entirely in your browser — we do not collect, store, or transmit any financial data you enter into our calculators.

2. Information We Do Not Collect

Our calculators are designed to run 100% client-side. This means:

  • We do not collect salary amounts, tax information, or any financial inputs you enter.
  • We do not transmit your calculator inputs to any server.
  • We do not create user accounts or require registration.
  • We do not use analytics tools that track your behavior across pages.

3. Google AdSense and Advertising Cookies

We use Google AdSense, a service provided by Google LLC, to display advertisements on our website. Google AdSense uses cookies to serve ads based on your prior visits to our website and other websites on the internet.

3.1 DART Cookie

Google uses the DART cookie to enable it and its partners to serve ads to you based on your visit to our site and/or other sites on the Internet. You may opt out of the use of the DART cookie by visiting the Google Ad and Content Network privacy policy.

3.2 Third-Party Ad Vendors

Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to our website or other websites. Google's use of advertising cookies enables it and its partners to serve ads to users based on their visit to our site and/or other sites on the Internet.

3.3 Opting Out of Personalized Advertising

You can opt out of personalized advertising by visiting:

4. GDPR — Rights for Users in the European Economic Area (EEA)

If you are located in the European Economic Area (EEA), you have certain data protection rights under the General Data Protection Regulation (GDPR). Because we do not collect personal data, most of these rights are not applicable. However, we want to be transparent about your rights:

  • Right to access: We do not hold personal data about you.
  • Right to rectification: Not applicable as we do not process personal data.
  • Right to erasure: Not applicable as we do not store personal data.
  • Right to restrict processing: You can manage advertising cookies through the Google-certified consent message or the opt-out links above.
  • Right to data portability: Not applicable as we do not process personal data.
  • Right to object: You can object to advertising cookies by choosing the non-consent option in the Google-certified consent message.

4.1 Legal Basis for Processing

For advertising cookies, our legal basis is your consent (GDPR Article 6(1)(a)). For users in the EEA, the United Kingdom, and Switzerland, consent is obtained through the Google-certified consent management platform configured in Google AdSense.

4.2 Data Transfers

Google AdSense may transfer data to servers in the United States. Google participates in the EU-U.S. Data Privacy Framework. For more information, see Google's Privacy Policy.

5. California Privacy Rights (CCPA/CPRA)

If you are a California resident, you have rights under the California Consumer Privacy Act (CCPA) as amended by the California Privacy Rights Act (CPRA):

  • Right to know: We do not collect, sell, or share personal information.
  • Right to delete: Not applicable as we do not store personal information.
  • Right to opt out of sale/sharing: We do not sell or share personal information.
  • Right to limit use of sensitive personal information: Not applicable.

We do not sell personal information as defined by the CCPA. Advertising cookies used by Google AdSense may constitute "sharing" under the CCPA. You can opt out by using the links in Section 3.3 above.

6. Cookie Consent

For visitors in the European Economic Area, the United Kingdom, and Switzerland, advertising consent is collected through the Google-certified consent management platform configured in Google AdSense. The message may allow you to:

  • Consent: Allow advertising cookies and related ad personalization signals where permitted.
  • Do not consent: Decline non-essential advertising storage and personalization.
  • Manage options: Review and adjust available consent choices.

Consent choices are handled by Google's certified CMP and related Google consent technologies. You can revisit or change your choice through the message interface when it is available, or by clearing browser data and visiting the site again.

7. Essential Cookies

The calculators run client-side and do not require an account login. We may use technically necessary browser storage or cookies for security, consent handling, or basic site operation. Advertising-related storage is controlled by Google AdSense and the consent choices described above.

8. Children's Privacy

Our services are not directed to individuals under the age of 16. We do not knowingly collect personal information from children.

9. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated "Last updated" date. We encourage you to review this policy periodically.

10. Contact Us

If you have questions about this Privacy Policy, please contact us through our Contact page.