Federal and California Tax Estimator

Effective September 19, 2026

Privacy Policy

Tax Estimator is a free calculator that runs entirely in your browser. The figures you enter — wages, withholding, mortgage interest, dependents — are never transmitted to us or to anyone else. This page explains exactly what does and does not leave your device.

The short version. Your tax figures stay on your device. We use Google Analytics to count which features get used, and it records no amount, entry, or selection you make in the calculator. We do not sell or share personal information, and we show no advertising.

1. Your Tax Figures

Every calculation happens locally, in JavaScript running in your browser. There is no account, no login, and no server that receives your return. We never see your income, withholding, filing status, dependents, property figures, or results, and we have no ability to retrieve them.

2. Storage On Your Device

So that your work is not lost between visits, the estimator saves your profiles in your browser's local storage — a private area of your own browser that this site can read back on your next visit. Two kinds of entries are stored:

This data stays on your device. It is not sent to us, not backed up, and not readable by any other website. Because it lives in the browser, anyone else using the same browser profile on the same computer can see your saved figures — keep that in mind on a shared or public machine.

You can remove it at any time: delete a profile from within the estimator, or clear site data for this site in your browser settings. Clearing it removes your saved figures permanently, since we hold no copy.

3. Analytics

The estimator uses Google Analytics, loaded through Google Tag Manager, to understand how the tool is used and which parts deserve improvement. Google Analytics sets its own cookies containing a random identifier, and receives standard web request information: your IP address, approximate location derived from it, browser and device type, the pages you view, and the site or search that referred you.

In addition, the site records that certain features were used. These events carry the event name only:

No values are attached to these events. We record that a filing status was changed, not which one you chose; that a calculation ran, not what it produced. No dollar amount you type or option you select is transmitted.

Google Analytics is configured with advertising features and Google Signals turned off, so your visit is not used to build advertising audiences, and analytics data is retained for 14 months.

4. Third Parties

Two third parties receive data as a result of your visit: Google, as our analytics provider and as the host of the web fonts used on the estimator page (loading a font discloses your IP address to Google), and our hosting provider, which records ordinary server request logs. We show no advertising and use no advertising, remarketing, or social media tracking tags.

5. Your Choices

6. California and State Privacy Rights

We do not sell your personal information, and we do not share it for cross-context behavioral advertising — under the CCPA/CPRA or any other state privacy law. We have never done so.

The only category of personal information we collect is internet and network activity (analytics identifiers, IP address, and the feature-usage events described above), collected to operate and improve the site. We do not collect your name, email address, postal address, or government identifiers, and the financial details you enter into the calculator are never collected at all.

Depending on your state, you may have the right to know what personal information is collected, to request its deletion or correction, and to opt out of sale or sharing. You can exercise the deletion right yourself at any time by clearing this site's data in your browser, or contact us using the details below. We will not discriminate against you for exercising any of these rights.

7. Children

This site is intended for adults preparing their own tax estimates. It is not directed to children under 13, and we do not knowingly collect personal information from them.

8. Changes

If this policy changes, the revised version will be posted here with a new effective date. Material changes to how data is handled will be described rather than folded in silently.

9. Contact

Questions about this policy or about your data can be sent to privacy@taxestimator.info.

Educational use only. Tax Estimator provides general educational calculations and is not financial, tax, legal, or accounting advice. Verify results with official sources and a qualified professional before making tax or financial decisions.